Using Response Time Reports

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# Using Response Time Reports

Natural Monitor (`NM`) provides response time reports. This section discusses the types and components of these reports and how they are created, modified, and used.

This section covers the following topics:

- What is a Response Time Report?

- Accessing the Response Time Subsystem

- Starting or Restarting (Refreshing) a Report

- Listing Reports

- Accessing Natural Monitor Tables

- Using Vertical and Horizontal Graphs

- Purging Report Definitions and Started Reports

## What is a Response Time Report?

The Response Time Subsystem enables you to retrieve information about the response times experienced by end users of Natural under the Customer Information Control System (CICS).

Response time is the amount of time, in seconds, required to process a user's transaction. A transaction is registered each time the ENTER key or a PF key is pressed.

Response time information is collected by the Natural Monitor processor according to instructions in a response time report definition which consists of the following:

- A set of parameters specifying the data to be captured.

- A set of report and historical data parameter options for specifying conditions of report processing.

- A set of processing rules identifying the conditions under which that data is to be captured.

Database Elapsed Time is the time, in seconds, Natural requires to process a database call.

Database Command Time is the time, in seconds, Adabas requires to process a database call. This information is returned by the database and indicated in the Cmd Time command time field of the Adabas control block (ACB). The Cmd Time field returns the elapsed time the Adabas nucleus spent to process the command. The elapsed time does not include the time the thread spent waiting for Adabas I/O operations or other resource actions. The time (called Adabas thread time) is expressed in a binary format with 16-microsecond units.

The Edit Report (`ER`) function provides a fill-in-the-blank screen to help you create or modify a response time report definition. Once you have entered all parameter values and processing rules on the Edit Report Definition screen, you can issue the `SAVE` command to write the report definition to the Natural Review repository file.

Data accumulation for a particular report begins when you start the report. Report results are automatically saved until the report is refreshed (restarted) or purged.

A report may be viewed online. Report results are displayed as tables and graphs.

Two response time report definitions are supplied with Natural Monitor. These reports may be used without change, or they may be customized to meet the requirements of your particular site. You may also create your own reports.

- What are Report Processing Rules?

- How are Reports Displayed?

- What Reports are Supplied with Natural Monitor?

- How are Reports Listed?

- How are Reports Named?

### What are Report Processing Rules?

Report processing rules allow you to restrict the data that a report collects. Four fields are used to specify processing rules:

- TP User ID

- Transaction program name

- Natural application

- Natural program

Each field may contain one of the following processing rules:

- A blank (collect all data)

- A single value

- A wild card

For example, the user ID `SAGAA` is a single value, and `SB*` is a wild card created by placing an asterisk after at least one other character. This wild card will result in all user IDs beginning with the characters `SB` being selected for processing.

Alphanumeric or numeric characters may be entered, but a hexadecimal value is not permitted.

If data is entered in more than one field, Natural Monitor uses AND logic for data collection.

### How are Reports Displayed?

The following displays are available for each report:

- Detailed Records providing information sorted by user

- Transaction Summary providing information sorted by transaction

- Vertical Graph

- Horizontal Graph

- Detailed Records Display
- Transaction Summary Display
- Graphic Display

#### Detailed Records Display

The Detailed Records display provides detailed response time statistics for transactions related to specific user IDs. The Detail Record parameters in the report definition determine when, how many, and what kind of detail records are to be generated. Detailed records can be viewed online using the Detailed Records display.

#### Transaction Summary Display

The Transaction Summary display provides both detailed and summary response time statistics. The detailed statistics are specified for a particular transaction name and Natural application (library); the summary statistics are specified for a particular transaction name, regardless of the Natural application.

Transaction Summary reports are produced when the Transaction Summary parameter is set in the report definition; the report results are available online using the Transaction Summary display.

#### Graphic Display

Reports may be viewed as tables or graphs. Both vertical and horizontal graphic displays are available. The interval, in seconds, for which graphs are generated is set using the Graph parameter in the report definition.

### What Reports are Supplied with Natural Monitor?

Natural Monitor supplies two reports which can be used without modification or can be customized to meet the requirements defined for your site:

- The `HIGHEST RESPONSE` report lists the transactions that have the highest response times, up to the maximum number of records allowed for the report (default = 50). This report allows the user to identify the transactions with the slowest response time of all monitored transactions.

- The `SYSTEM RESPONSE TIME` report lists the most recent transactions that exceed the response time threshold set for this report (default = 3.5 seconds).

The supplied reports can be viewed online in table or graphic form.

### How are Reports Listed?

Three types of lists are used to manage reports:

- Report definition lists of report and started reports.

- Started report lists of all reports that have been started and may be accumulating data.

- History report lists of all reports containing historical data.

### How are Reports Named?

A report name may be up to 32 alphanumeric characters in length. It may contain blanks and any special characters except the following:

`(')` | Apostrophe or single quote
`(¢)` | Cent sign
`(:)` | Colon
`(,)` | Comma
`($)` | Dollar sign
`(=)` | Equal sign
`(%)` | Percent sign
`(.)` | Period
`(/)` | Slash

## Accessing the Response Time Subsystem

You can access the Natural Monitor Response Time subsystem in two ways.

To access the Response Time subsystem

1. From any screen outside the Natural Monitor System, type the code `NM RT` on the command line and press ENTER; or

2. From any screen within the Natural Monitor System, type `RT` on the command line and press ENTER.

The Response Time Subsystem menu appears as shown below:

      10:13:23                ***** REVIEW NM UTILITY *****                2006-03-02
                               - Response Time Subsystem -

                                 Code Description

                                  ER  Edit Report Definition
                                  LH  List History Reports
                                  LR  List Report Definitions
                                  LS  List Started Reports

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit                                                  Canc

The functions available from this menu are described in the following table:

Code | Function | Description
--- | --- | ---
`ER` | Edit Report Definitions | Allows you to specify the parameters used to collect information for a response time report.
`LH` | List History Reports | Lists the historical snapshots which contain previously accumulated data.
`LR` | List Report Definitions | Lists the report definitions and started reports currently available. A report definition is created or modified with the `ER` function.
`LS` | List Started Reports | Lists the reports that are currently accumulating data.

To display a list of available commands

- From a list screen, enter a question mark (?) in the selection column preceding a particular report name and press ENTER.

A window appears containing a list of available commands.

To invoke a command from the list

- Enter the desired function code in the data entry field and pressing ENTER.

See Function Codes and Commands for a description of all function codes, PF keys, and commands available within Natural Monitor.

- Accessing the Edit Report Definition Screen

- Modifying Report Parameters

- Adding, Modifying, or Deleting Processing Rules

- Saving a Report Definition

### Accessing the Edit Report Definition Screen

There are three ways to access the Edit Report Definition screen.

To access the Edit Report Definition screen

1. Type `ER` on the command line and press ENTER; or

2. Type the following string on the command line and press ENTER:

   `ER reportname`

   where reportname is either the name of an existing report definition or the name for a new report definition; or

3. Type `ER` in the `Sel` column preceding the name of a report on the list of report definitions and press ENTER.

See How are Reports Named for information about naming reports.

In all three cases, the Edit Report Definition screen appears as shown below:

      10:14:22                 ***** REVIEW NM UTILITY *****               2006-03-02
                                - Edit Report Definition -

                       Report Name .. SAMPLE REPORT___________________

        Graph Parameter                             Report Options
          Response Time Interval ... 0.5_             Auto Start (Y/N) .......... N
                                                      History Interval (min) .... 5__
                                                      History Refresh (Y/N) ..... Y
        Detail Record Parameters
          Response Time Threshold .. 3.5_
          Number of Records ........ 20__
          Wrapping Options ......... NONE
                     (None/Std/High)                Processing Rules
                                                      Field Value
                                                      TP Userid ............ ________
        Transaction Summary Parameter                 Transaction Id ....... ________
          Summary Option ........... NONE             NATURAL Application .. ________
                      (None/Sum/Det)                  NATURAL Program ...... ________

      REV00125 - Report definition has been saved
      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit        Save  Start                               Canc

If the report name is blank, or if the report name you have entered is new to Natural Monitor, the following message is displayed on the Edit Report Definition screen:

    REV00275 - NEW REPORT DEFINITION

If this message does not appear, Natural Monitor has recognized the report name you entered as an existing report. Any changes you make on the Edit Report Definition screen will modify the existing report.

You may change the report name from the Edit Report Definition screen by overtyping the name in the `Report Name` field with a new name and pressing ENTER.

The following PF keys are provided to help process report definitions:

PF Key | Command | Description
--- | --- | ---
PF5 | `Save` | Save the current report definition.
PF6 | `ST` | Save the report defined on the screen and start it.

### Modifying Report Parameters

When you access the Edit Report Definition screen, parameter values are already entered for the report:

- If you accessed an existing report definition, the parameter values reflect the current definition for that report.

- If you are creating a new report definition, the values represent the default values set in `P-NMCONF` by your Natural Monitor system administrator.

You may change the parameter values on the Edit Report Definition screen, and you may add, modify, or delete processing rules for the report definition.

The parameters shown on the Edit Report Definition screen are described in the following sections.

- Graph Parameter
- Detail Records Parameters
- Transaction Summary Parameter
- Report Options
- Controlling Color and Monochrome Attributes

#### Graph Parameter

The following field contains one of the parameters used to graph reports:

Parameter | Description
--- | ---
`Response Time Interval` | Specifies the reporting interval, in seconds, used to graph a report horizontally and vertically. Valid values are `0.1` to `99.9`.

#### Detail Records Parameters

The following fields contain values which specify when and if detailed records are to be generated for a report:

Parameter | Description
--- | ---
`Response Time Threshold` | Specifies the transaction response time value, in seconds, above which Natural Monitor creates detailed records for the Detailed Records table. This value is also used to control the color and noncolor attributes of the vertical and horizontal graphs. Response times that exceed the response time threshold are the highest response times experienced. Valid values are `0` to `99.9`.
`Number of Records` | Indicates the maximum number of detailed response time records to be retained. Valid values are `0` to `9999`.
`Wrapping Options` | Specifies the wrap option and has the following possible values:
`NONE` | Detailed response time records are retained to the limit specified by the `Number of Records` value.
`STD` | (standard) The most current response time records are retained once the Number of Records value is reached.
`HIGH` | The response time records with the highest value are retained once the `Number of Records` value is reached.

#### Transaction Summary Parameter

The following field is used to set the summary option:

Parameter | Description
--- | ---
`Summary Option` | Specifies whether a Transaction Summary table is to be generated and, if so, what kind. Valid values are:
`NONE` | None created.
`SUM` | A transaction summary is created for the root transaction program; for example Nvrs for Natural; where vrs represents the relevant product version.
`DET` | A detailed transaction summary is created that includes Natural application information.

#### Report Options

The following fields control whether a report is to be autostarted, the interval at which historical data is to be written to the Natural Review repository file, and whether the report data collection is to be refreshed after this data has been written:

Parameter | Description
--- | ---
`Autostart` | Indicates whether this report is to be started automatically when Natural Monitor initializes. Valid values are `Y` (yes) or `N` (no).
`History Interval` | Specifies the interval, in minutes, at which the Natural Monitor history task writes historical data to the Natural Review repository file. Valid values are `0` to `999`. If this value is left at `0`, no history report data will be saved.
`History Refresh` | Indicates whether the response time report should be refreshed (restarted) when the history interval has expired if it is a history response time report. Valid values are `Y` (yes) or `N` (no).

Anmerkung
The `Report Options` are processed by the Natural Monitor History subsystem. This subsystem must be installed for these options to take effect.

#### Controlling Color and Monochrome Attributes

The `Response Time Interval` and `Response Time Threshold` parameters are used to control the color and monochrome attributes of response time graphs that display totals. Response times which exceed the `Response Time Threshold` are shown on color graphs in red and on monochrome graphs as asterisks (*).

### Adding, Modifying, or Deleting Processing Rules

Also shown on the Edit Report Definition screen are several fields which control processing rules within Natural Monitor.

Processing rules are used to restrict the accumulation of response time data to specific TP users, programs, Natural applications, or Natural programs, or to a specific set of these values.

When entering data, alphanumeric and numeric values are permitted; hexadecimal values are not permitted.

Each field may contain one of the following processing rules:

Field Input | Processing Rule
--- | ---
Blank | If a field remains blank, all data pertaining to that field is generated.
Single value | If a single value is entered in a field, data accumulation is restricted to the value entered.
Wild card | If a wild card is entered in a field, data accumulation is restricted by the value entered in that field. Example: `P*` generates data related to all and only those Natural programs that have names beginning with the value `P`.

### Saving a Report Definition

When you have made all necessary changes on the Edit Report Definition screen, you can save the report definition two ways.

To save the report definition

1. Press PF5 (`Save`); or

2. Enter `SAVE` on the command line and press ENTER.

A new report definition does not become active until you start it. If you change parameters for an existing report, the new parameter settings do not become active until the report is refreshed.

## Starting or Restarting (Refreshing) a Report

A report does not begin accumulating data until it is started. Once a report is started, tables and graphs of response time data are generated based on the parameters in the report definition.

New reports are started; started reports that have been modified and saved are refreshed. A report can be refreshed as often as necessary.

The following commands may be used to start or refresh a report:

`ST reportname` | to `START` a new report;
`RF reportname` | to `REFRESH` a modified, started report.

If you attempt to start a report that has already been started, the following message appears:

    The report listed below is already started. Do you want to REFRESH it?

Type `Y` at the cursor and press ENTER to `REFRESH` the report; type `N` and press ENTER to retain the started report without any of its current modifications.

- Starting a Report

- Refreshing a Report

### Starting a Report

A report is started by issuing a start (`ST`) command. The `ST` command is issued for an existing report definition that you select. How you start a report depends on your location.

To start a report

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

       RT ST reportname

2. From any screen within the Response Time subsystem, type the following string on the command line and press ENTER:

       ST reportname

3. From the list of report definitions, type `ST` on the selection line preceding the name of the report to be started and press ENTER.

Anmerkung
On the list of report definitions, a started report is identified by a greater than symbol (>) preceding the report name.

After you have saved a report definition, you may start a report directly from the Edit Report Definition screen.

To start a report directly

1. Press PF6 (`Start`); or

2. Type `ST` on the command line and press ENTER.

Once a report is started, the following message appears:

    REV00092 - REPORT HAS BEEN STARTED

Natural Monitor then begins to accumulate data based on the parameters in the report definition that you chose.

Other than the `ST` command, the `START` command starts the Natural Monitor history session.

### Refreshing a Report

To restart a report

- Enter the `REFRESH` (`RF`) command.

The `REFRESH` command is issued for the started report you select. When you refresh a report, all tables and graphs for the report are deleted, and new data is generated based on the current parameters in the report definition. There are three ways to perform a refresh.

To refresh a report

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

   `RT RF reportname`

2. From any screen within the Response Time subsystem, type the following string on the command line and press ENTER:

       RF reportname

3. From the list of started reports or the list of report definitions, type `RF` on the selection line preceding the name of the report to be refreshed and press ENTER.

On the list of report definitions, a started report is identified by a greater than symbol (>) preceding the report name. If you issue the `RF` command for a report that is not started, Natural Monitor automatically starts the report.

Once a report is refreshed, Natural Monitor begins to accumulate new data based on the parameters in the report definition that you chose.

## Listing Reports

Three different lists of report names are available from the Response Time Subsystem menu:

- Report definitions

- Started reports

- History reports

In addition, a list of historical snapshots is available for any report listed on the History Reports screen.

The following screen-positioning PF keys and commands are available from the report lists:

PF Key | Command | Description
--- | --- | ---
PF7 | `-` | Scroll backward one screen (on list of report definitions only).
PF8 | `+` | Scroll forward one screen.
| `TOP` | Go to the top of the display.

Anmerkung
There is no PF key available for the `TOP` command.

- Listing Report Definitions

- Listing Started Reports

- Listing Historical Reports

- Listing Historical Snapshots

### Listing Report Definitions

The List Report Definitions function (`LR`) lists the names of the response time report definitions. There are two ways to access the screen.

To access the List Report Definitions screen

1. From any screen within Natural Review, type `RT LR` on the command line and press ENTER.

2. From any screen within the Response Time subsystem, type `LR` on the command line and press ENTER.

The List Report Definitions screen appears as shown in the example below:

    10:15:57                 ***** REVIEW NM UTILITY *****               2006-03-02
                                - List Report Definitions -

        Sel  Report Name                    Auto Int  HInt Rf Thresh Recs Wrap Tran
        __ > HIGHEST RESPONSE                 Y   0.5   60  Y   3.5    50 HIGH NONE
        __ > SAMPLE REPORT                    N   0.5    5  Y   3.5    20 NONE NONE
        __   SPECIAL REPORT                   N   0.5    2  Y   3.5    20 NONE NONE
        __ > SYSTEM RESPONSE TIME             Y   0.5   60  Y   3.5    50 STD  SUM

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit                     -     +                      Menu

Started reports are indicated by a greater than symbol (>) preceding the name of the report. The `Sel` column provides a command input field for each report name.

Reports are listed in alphabetical order by name. The remaining columns on the screen indicate the values of the report definition parameters for this report. The fields shown on this screen correspond to the parameters on the Edit Report Definition screen as follows:

Field | Description
--- | ---
`Auto` | Autostart option. Valid values are:
`Y` | Response time report is autostarted.
`N` | Response time report is not autostarted.
`Int.` | Response time interval. Valid values are `0.1` to `99.9` seconds.
`HInt` | History interval (in minutes) where `0` indicates that the report is not a history report.
`Rf` | History refresh indicator. Valid values are:
`Y` | Response time report is to be refreshed after historical data is written if the report is a history report.
`N` | Response time report is not to be refreshed.
`Thresh` | Response time threshold (in seconds).
`Recs` | Number of detailed records (maximum) to be retained.
`Wrap` | Wrapping option retention indicator. Valid values are:
`NONE` | The report stops at the number of records defined.
`STD` | The most current records are kept if the number of records exceeds the number of records defined.
`HIGH` | The records with the highest response times are retained if the number of records exceeds the number of records defined.
`Tran` | Transaction summary option indicator. Valid values are:
`NONE` | No Transaction Summary report is created.
`SUM` | A Transaction Summary report is created for the root program.
`DET` | A Transaction Summary report is created that includes Natural application information.

See Modifying Report Parameters for a description of these parameters.

For any report listed on the List Report Definitions screen, type in one of the following commands in the `Sel` column and press ENTER to perform the associated task:

Command | Task
--- | ---
`CL` | Close started report.
`ER` | Edit the report definition.
`EX` | Display a list of historical snapshots for the report.
`PH` | Purge history reports.
`PR` | Purge the report definition.
`PS` | Purge the started report.
`RF` | Refresh (restart) the started report.
`ST` | Start a report.
`VD` | Display detailed records for the report.
`VH` | Display a horizontal graph for the report.
`VT` | Display a transaction summary for the report.
`VW` | Display a vertical graph for the report.

To view details of a historical report

- Type `EX` on the selection line preceding the report listed.

An expanded list of historical snapshots (that is, pictures of data stored at previous times for the report) is displayed.

### Listing Started Reports

The List Started Reports function lists the name of response time reports that have been started and are currently accumulating data. There are two ways to access the screen:

To access the List Started Reports screen

1. From any screen within Natural Monitor, type `RT LS` on the command line and press ENTER.

2. From any screen within the Response Time subsystem, type `LS` on the command line and press ENTER.

The List Started Reports screen appears as shown in the example below:

    10:15:57                 ***** REVIEW NM UTILITY *****               2006-03-02
                                 - List Started Reports -

        Sel  Report Name                    Auto Int. HInt Rf Thresh Recs Wrap Tran
        __   HIGHEST RESPONSE                 Y   0.5   60  Y   3.5     0 HIGH NONE
        __   SAMPLE REPORT                    N   0.5    5  Y   3.5     0 NONE NONE
        __   SYSTEM RESPONSE TIME             Y   0.5   60  Y   3.5     0 STD  SUM

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit                           +                      Menu

The `Sel` column provides a command input field for each report name.

Reports are listed in alphabetical order by name. The remaining columns on the screen indicate the values of the report definition parameters for this report. The fields displayed on this screen correspond to the parameters on the Edit Report Definition screen as follows:

Field | Description
--- | ---
`Auto` | Autostart option. Valid values are:
`Y` | Response time report is autostarted.
`N` | Response time report is not autostarted.
`Int.` | Response time interval. Valid values are `0.1` to `99.9` seconds.
`HInt` | History interval (in minutes) where `0` indicates that the report is not a history report.
`Rf` | History refresh indicator. Valid values are:
`Y` | Response time report is to be refreshed after historical data is written if the report is a history report.
`N` | Response time report is not to be refreshed.
`Thresh` | Response time threshold (in seconds).
`Recs` | Number of detailed records (maximum) to be retained.
`Wrap` | Wrapping option retention indicator. Valid values are:
`NONE` | The report stops at the number of records defined.
`STD` | The most current records are kept if the number of records exceeds the number of records defined.
`HIGH` | The records with the highest response times are retained if the number of records exceeds the number of records defined.
`Tran` | Transaction summary option indicator. Valid values are:
`NONE` | No Transaction Summary report is created.
`SUM` | A Transaction Summary report is created for the root program.
`DET` | A Transaction Summary report is created that includes Natural application information.

See Modifying Report Parameters for a description of these parameters.

For any report listed on the List Started Reports screen, type in one of the following commands in the `Sel` column and press ENTER to perform the associated task:

Command | Task
--- | ---
`CL` | Close started report.
`ER` | Edit the report definition.
`EX` | Display a list of historical snapshots for the report.
`PH` | Purge history reports.
`PR` | Purge the report definition.
`PS` | Purge the started report.
`RF` | Refresh (restart) the started report.
`ST` | Start a report.
`VD` | Display detailed records for the report.
`VH` | Display a horizontal graph for the report.
`VT` | Display a transaction summary for the report.
`VW` | Display a vertical graph for the report.

If you issue the `ST` command from the List Started Reports screen, Natural Monitor asks whether you want to refresh (restart) the report.

To view details of a historical report

- Type `EX` on the selection line preceding the report listed.

An expanded list of historical snapshots (that is, pictures of data stored at previous times for the report) is displayed.

### Listing Historical Reports

The List History Reports function provides a summary list of historical response time reports. There are two ways to access the screen.

To access the List History Reports screen

1. From any screen within Natural Monitor, type `RT LH` on the command line and press ENTER.

2. From any screen within the Response Time subsystem, type `LH` on the command line and press ENTER.

The List History Reports screen appears as shown below:

    10:16:30                 ***** REVIEW NM UTILITY *****               2006-03-02
                                 - List History Reports -

       Sel Report Name                     Number  Records        Date Range
        __ HIGHEST RESPONSE                     1        3  1998/11/05 - 1998/11/05
        __ SPECIAL REPORT                     117      302  1998/11/05 - 1998/11/05
        __ SYSTEM RESPONSE TIME                30      255  1998/11/05 - 1998/11/03

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit                           +                      Menu

The `Sel` column provides a command input field for each report name. Reports are listed in alphabetical order by name.

The remaining fields shown on this report are as follows:

Field | Description
--- | ---
`Number` | Total number of historical snapshots available for each report.
`Records` | Total number of records saved for all historical snapshots.
`Date Range` | Range of dates for which historical snapshots are available. Format of date is `YYYY/MM/DD`.

To view details pertaining to any of these reports

- Type `EX` on the selection line preceding the report listed.

An expanded list of historical snapshots (i.e., pictures of data stored at previous times for the report) is displayed.

Anmerkung
When entered on the command line, the `EX` command accesses the List History Reports screen as shown above.

To purge all historical reports of a report destination

- Type `PH` on the selection line preceding the history report listed.

### Listing Historical Snapshots

There are three ways to access the Expanded List of historical snapshots for a response time report listed on the List History Reports screen.

To access the Expanded List of historical snapshots

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

       RT EX reportname

2. From any non-list display within the Response Time subsystem, type `EX reportname` on the command line and press ENTER.

3. From the List History Reports screen, type `EX` in the `Sel` column next to a report name and press ENTER.

An Expanded List for the history report selected appears as shown in the example below:

    10:17:10                 ***** REVIEW NM UTILITY *****               2000/08/08
                           - Expanded List for SPECIAL REPORT -

        Date/Time Recs      Date/Time Recs      Date/Time Recs      Date/Time Recs
         2000/08/08       __ 10:47:00    2    __ 14:28:00   11    __ 14:07:00    8
      __  -Current-          2000/08/08       __ 14:27:00   14    __ 14:03:00   13
      __ 10:16:00   15    __ 14:43:00    3    __ 14:26:00   25    __ 14:02:00   18
         2000/08/01       __ 14:41:00   12    __ 14:25:00   16    __ 14:01:00   16
      __ 15:00:00    9    __ 14:40:00   16    __ 14:24:00    6    __ 14:00:00   15
      __ 14:59:00    5    __ 14:39:00   11    __ 14:23:00   15    __ 13:59:00    4
      __ 14:58:00   18    __ 14:38:00   13    __ 14:22:00   13    __ 13:58:00   12
      __ 11:03:00    6    __ 14:37:00   15    __ 14:21:00    2    __ 13:57:00   17
      __ 10:57:00    5    __ 14:36:00   12    __ 14:20:00   12    __ 13:55:00    5
      __ 10:55:00    8    __ 14:35:00   13    __ 14:19:00    8    __ 13:54:00    6
      __ 10:54:00    2    __ 14:34:00    9    __ 14:18:00    5    __ 13:53:00   16
      __ 10:53:00   14    __ 14:33:00   14    __ 14:17:00   10    __ 13:52:00    7
      __ 10:51:00    9    __ 14:32:00    7    __ 14:16:00    2    __ 13:51:00    8
      __ 10:50:00   13    __ 14:31:00    3    __ 14:11:00    2    __ 13:50:00    4
      __ 10:49:00    7    __ 14:30:00   21    __ 14:10:00   10    __ 13:48:00    9
      __ 10:48:00    9    __ 14:29:00   16    __ 14:08:00   20    __ 13:47:00   11
      REV00055 - Select a historical snapshot
      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit              --           +                      Menu

The `Sel` column provides a command input field for each historical snapshot listed. Each historical snapshot is identified on this expanded list by date and time. Current data is marked as `-Current-` on the list.

The `Recs` column indicates the number of records written. Possible values are:

`0` | No transaction, no detail records.
`1` | Transactions, no detail records.
`>1` | Transactions and detail records.

Anmerkung
When there are no transactions, detail records do not exist. When `Logging of empty records` is set to `NO`, reports without transaction will not be written by the history session.

The following message appears on the screen:

    REV00055 - SELECT A HISTORICAL SNAPSHOT

For any snapshot listed on the Expanded List screen, type in one of the following commands in the `Sel` column and press ENTER to perform the associated task:

Command | Task
--- | ---
`PH` | Purge this historical snapshot.
`PX` | Purge marked range - start.
`PY` | Purge marked range - end.
`VD` | Display a detailed records table for the snapshot.
`VH` | Display a horizontal graph for the snapshot.
`VW` | Display a vertical graph for the snapshot.

Anmerkung
The `VT` command is not available when viewing historical snapshots.

Once you have accessed either the Expanded List or the actual historical display, you may toggle back and forth between the displays by pressing PF2.

- Viewing Earlier or Later Historical Snapshots

#### Viewing Earlier or Later Historical Snapshots

Using the `PREV` or `NEXT` command, you may access earlier or later historical snapshots.

To access earlier historical snapshots

- Type the command `PREV` on the command line of any historical snapshot screen and press ENTER.

To view later historical snapshots

- Type the command `NEXT` on the command line and press ENTER.

## Accessing Natural Monitor Tables

The following tables may be generated for any response time report in Natural Monitor:

Command | Description
--- | ---
`VD` | Detailed Records table.
`VT` | Transaction Summary table.

Each table consists of one or more screens of data. The data generated from each of these tables is derived from the parameters entered in the report definition (Edit Report Definition screen).

The Detailed Records table provides response time statistics for individual transactions for individual users. A Detailed Records display is generated for a report only if the Detail Record parameters were entered on the Edit Report Definition screen for a report definition.

The Transaction Summary table provides response time statistics for transactions executed in Natural. A Transaction Summary display is generated for a report only if the `Transaction Summary` parameter of `SUM` or `DET` was entered on the Edit Report Definition screen for that report definition.

Anmerkung
Both current and historical data are available for the Detailed Records table. Historical data is not available for the Transaction Summary table.

- Accessing the Detailed Records Table

- Accessing the Transaction Summary Table

### Accessing the Detailed Records Table

There are five ways to access the Detailed Records screen.

To access the Detailed Records Table

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

         RT VD reportname

2. From within the Response Time subsystem, type the following string on the command line and press ENTER:

         VD reportname

3. From any non-list display within the Response Time subsystem, type `VD` on the command line and press ENTER. The last accessed report will be displayed.

4. From the list of Report Definitions or the list of Started Reports, type `VD` in the `Sel` column next to a started report and press ENTER.

5. From the Expanded List for a history report, type `VD` in the `Sel` column next to a historical snapshot and press ENTER.

The Detailed Records screen for a particular report appears as shown in the example below:

      10:21:03                 ***** REVIEW NM UTILITY *****               2006-03-02
                          - Detailed Records for SPECIAL REPORT -
                               - from 1998/03/16 16:23:41 -

      TP       Response Natural  Trans    Natural  Natural  ______Total Database_____
      Userid       Time Userid   Name     Appl     Program    Calls  ElpTime  CmdTime
      GGS         0.731 GGS      NC22     SYSREVNM P-NMRTLH     394    0.388  0.08494
      GGS         0.125 GGS      NC22     SYSREVNM P-NMRTEX      61    0.044  0.00819
      GGS         0.111 GGS      NC22     SYSREVNM P-NMRTEX      62    0.040  0.01051

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help  Hist  Exit                     -     +    Pick        ===>  Menu

This display is sorted in descending numeric order by `Trans End Time` (transaction completion time) if the `WRAP` option parameter value entered for the related report definition is `NONE` or `STD`. If the `WRAP` option parameter value is `HIGH`, the display is sorted in descending numeric order by response time.

A row of statistics three screens wide is presented in this display for each user ID in the list. Use one of the following commands or PF keys to access these additional screens or to display information for one particular user ID:

PF Key | Command | Description
--- | --- | ---
PF2 | `HIST/CURR` | Toggle between the historical display and the current display.
PF7 | `-` | Scroll backward one screen (on list of report definitions only).
PF8 | `+` | Scroll forward one screen.
PF9 |  | Select (pick) a particular detail record.
PF10 | `LEFT` | Scroll the display left one screen.
PF11 | `RIGHT` | Scroll the display right one screen.
| `TOP` | Go to the top of the display.

Anmerkung
There is no PF key available for the `TOP` command. The `PICK` command cannot be used from the command line for these displays.

From each Detailed Records screen, two screens are accessible which show the remaining columns of the Detail Records table.

To display the remaining columns of the Detail Records table

1. Press `PF11` to access the first screen.

         10:21:43                 ***** REVIEW NM UTILITY *****               2006-03-02
                             - Detailed Records for SPECIAL REPORT -
                                  - from 1998/03/16 16:25:00 -

         TP       Response _Avg Database__ __________________High/Last__________________
         Userid       Time ElpTime CmdTime Cmd DBID  FNR Stmt Lvl Calls ElpTime  CmdTime
         GGS         0.731   0.000 0.00020 L9    10   73 2130  1   394    0.010  0.00968
         GGS         0.125   0.000 0.00012 L9    10   73 7090  1    61    0.002  0.00040
         GGS         0.111   0.000 0.00016 L9    10   73 7090  1    61    0.003  0.00200

         Command ===>
         Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
               Help  Hist  Exit                     -     +    Pick  <===  ===>  Menu

2. Press PF11 to access the second screen:

         10:21:53                 ***** REVIEW NM UTILITY *****               2006-03-02
                             - Detailed Records for SPECIAL REPORT -
                                  - from 1998/03/16 16:25:00 -

         TP       Response    Trans NAT  Trans     Terminal
         Userid       Time   Number Thd  End Time  Name
         GGS         0.731     1771   2  16:23:51  0824
         GGS         0.125     1773   2  16:23:58  0824
         GGS         0.111     1772   2  16:23:57  0824

         Command ===>
         Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
               Help  Hist  Exit                     -     +    Pick  <===        Menu

3. Press PF10 to return to the first screen.

- Statistical Fields on the Natural Monitor Detailed Records Table
- Accessing the Summary of Fields Window
- Accessing Historical Data for Detailed Records

#### Statistical Fields on the Natural Monitor Detailed Records Table

The fields available on the four Detailed Records screens are described in the following table:

Field | Description
--- | ---
`TP Userid` | The CICS user ID for the transaction. Corresponds to system variable `*INIT-USER`.
`Response Time` | The transaction response time, measured between terminal input and output.
`Natural Userid` | The Natural user ID for the transaction. Corresponds to system variable `*USER`.
`Trans Name` | The CICS transaction ID.
`Natural Appl` | The Natural application for the transaction. Corresponds to system variable `*LIBRARY-ID`.
`Natural Program` | The Natural program within the transaction, that had the highest database command time or in case of no database calls, the last program executed for the transaction.
`Total Database Calls` | The number of database calls executed during the transaction.
`Total Database ElpTime` | The total amount of time required for database communications. This time includes database duration, cross address space time and CICS system queue time.
`Total Database CmdTime` | The amount of time which expired between the time the command was received by the database system and the time the result was passed back the database system.
`Avg Database ElpTime` | The average elapsed time for all database calls during the transaction.
`Avg Database CmdTime` | The average database command time for all database calls during the transaction.
`High/Last Cmd` | The database command issued for the Natural program that had the highest command time or the last database command issued during the transaction.
`High/Last DBID` | The database ID accessed by the database call issued by the Natural program that had the highest command time or the last database ID accessed during the transaction.
`High/Last FNR` | The database file number accessed by the database call issued by the Natural program that had the highest command time or the last database file number accessed during the transaction.
`High/Last Stmt` | The Natural program statement that issued the database call that had the highest command time within the transaction.
`High/Last Lvl` | The Natural call level of the program that issued the database call that had the highest command time or the call level of the last program executed by the transaction.
`Orig Load Library` | The name of the library where the program is loaded from.
`High/Last Calls` | The total number of database calls issued by the Natural program that had the highest database command time.
`High/Last ElpTime` | The elapsed time required to process the database call issued by the Natural program transaction that had the highest database command time.
`High/Last CmdTime` | The command time required by the database to process the call that had the highest database command time.
`Trans Number` | The CICS transaction number.
`NAT Thd` | The Natural storage thread number for the transaction. `0` indicates that a getmained storage thread or no thread was used.
`Trans End Time` | The time, in `HH:MM:SS` format, that the transaction was ended.
`Terminal Name` | The CICS terminal name. Corresponds to the Natural system variable `*INIT-ID`.

#### Accessing the Summary of Fields Window

You can access a single screen summary of all fields in the Detailed Records display for a particular transaction number for a particular user from any of the Detailed Records screens.

To access a single screen summary of all fields in the Detailed Records display

- Position the cursor on the row that provides information for that transaction and user ID and press PF9 (`Pick`).

Anmerkung
The `PICK` command cannot be used from the command line in this instance.

The Summary of Fields window appears as shown in the example below:

        10:21:53                 ***** REVIEW NM UTILITY *****               2006-03-02
                          - Detailed Records for SPECIAL REPORT -

                                      - Detail Record -
        TP System Information                 Database Information
          Userid ................ GGS           Total Calls ......... 62
          Response Time ......... 0.130         Elapsed Time ........ 0.056
          Transaction Name ...... NC22          Avg Elapsed Time .... 0.000
          Transaction Number .... 1811          Command Time ........ 0.01121
          Terminal Name ......... 0824          Avg Command Time .... 0.00017
          Transaction End Time .. 16:30:09

        Natural Information                   High/Last Database Info
          Userid ................ GGS           Calls ............... 61
          Application ........... SYSREVNM      Elapsed Time ........ 0.006
          Program ............... P-NMRTEX      Command Time ........ 0.00059
          Statement ............. 7090          Command ............. L9
          Call Lev. / Thread Nbr. 3  / 0        Database Id ......... 10
          Original load library.. SYSTEM        File Number ......... 73

        Command ===>
        Enter-PF1---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12----
              Help  Exit                                                  Menu

The fields displayed on this screen are the same as those shown on the Detailed Records screen described above.

#### Accessing Historical Data for Detailed Records

There are two ways to display the Expanded List of historical snapshots available for the Detailed Records display.

To display the Expanded List of historical snapshots

1. Type `EX` on the command line of the current detail records display and press ENTER, or

2. Type `EX` in the `Sel` column in one of the three list report screens and press ENTER.

To display a particular historical snapshot from the Expanded List

- Type `VD` in the `Sel` column preceding the snapshot you want to display and press ENTER.

Once you have accessed a historical display, you may toggle back and forth between this historical display and the current display by pressing PF2.

### Accessing the Transaction Summary Table

There are four ways to access the screen.

To access the Transaction Summary screen

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

       RT VT reportname

2. From within the Response Time subsystem, type the following string on the command line and press ENTER:

       VT reportname

3. From any non-list display within the Response Time subsystem, type `VT` on the command line and press ENTER. The last accessed report will be displayed.

4. From the list of Report Definitions or the list of Started Reports, type `VT` in the `Sel` column next to a started report and press ENTER.

The Transaction Summary screen for a particular report appears as shown in the example below:

      10:25:03                 ***** REVIEW NM UTILITY *****               2006-03-02
                        - Transaction Summary for SPECIAL REPORT -

      Trans    Natural     Avg   Total ____Total Database_____  __Average Database___
      Name     Appl       Resp   Trans   Calls ElpTime CmdTime  Calls ElpTime CmdTime
      NC22     **SUM**   0.060      11      78   0.249   0.031   7.09   0.003  0.0004

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help        Exit        Det   Sum          +                      Menu

The sample screen above is a summary version indicating that the `Transaction Summary` parameter in the related report definition is set to the value `SUM`.

Each summary table is marked with `**SUM**` in the `Natural Appl` field.

If it is set to the value `DET`, the default report would be the detailed version of the Transaction Summary table.

The detailed version includes the Natural application (`Natural Appl`) for each root transaction program (`Trans Name`).

The Transaction Summary table is sorted in alphabetic order based on the transaction name. If a detailed version of the table is accessed, a secondary sort is performed by Natural application.

The following are the additional PF keys and commands available on this screen:

PF Key | Command | Description
--- | --- | ---
PF5 | `DET` | Access the detailed version of the Transaction Summary table. The first line shown is a summary of all detailed transactions listed. Anmerkung This table shows information on Natural application usage.
PF6 | `SUM` | Access the summary version of the Transaction Summary table. Anmerkung This table does not show information on Natural application usage.
PF8 | `+` | Scroll forward one screen.
| `TOP` | Go to the top of the display.

Anmerkung
There is no PF key available for the `TOP` command.

You may use PF5 (`Det`) and PF6 (`Sum`) to toggle back and forth between the detailed and summary versions of the Transaction Summary table.

- Statistical Fields on the Transaction Summary Table

#### Statistical Fields on the Transaction Summary Table

The fields available on the Transaction Summary screen are:

Field | Description
--- | ---
`Trans Name` | The CICS transaction ID.
`Natural Appl` | The Natural application name (detail only). `**SUM**` indicates a summary line for the transaction name including all applications.
`Avg Resp` | The average response time in seconds for the transaction/application name.
`Total Trans` | The total number of transactions for the transaction/application name.
`Total Database Calls` | The total number of database calls issued by the transaction/application name.
`Total Database ElpTime` | The total amount of time in seconds for all database calls issued by the transaction/application name.
`Total Database CmdTime` | The total amount of time (seconds) required by the database to process all database calls issued by the transaction/application name.
`Average Database Calls` | The average number of database calls issued for the transaction/application name.
`Average Database ElpTime` | The average amount of time (seconds) required to process all database calls issued by the transaction/application name.
`Average Database CmdTime` | The average amount of time (seconds) required by the database to process all database calls issued by the transaction/application name.

## Using Vertical and Horizontal Graphs

Response time reports are available as vertical and horizontal graphs which may be accessed from the following lists:

- Report definitions

- Started reports

- Expanded list of historical snapshots

To access a graph

- Enter either of the following commands in the Sel column for a particular report (or historical snapshot) and pressing ENTER:

Command | Description
--- | ---
`VH` | Display a horizontal graph of response time intervals.
`VW` | Display a vertical graph of response time intervals.

Once a default vertical or horizontal graph has been accessed, you may access similar graphs of three sets of statistics.

To display additional graphs

- Use the commands listed below.

Command | Report Description
--- | ---
`TRANS` | Response times for transactions (default graph).
`CALLS` | The total number of database calls issued for transactions.
`ACALL` | The average number of database calls issued for transactions.

The `Response Time Interval` in the report definition (Edit Report Definition screen) determines the whole or fractional number of seconds used to graph the response time intervals on each graph. On the vertical graph, intervals are designated as `Response Time Intervals in Seconds`. On a horizontal graph, intervals are designated as `Response Time Range`.

A graph may be displayed in color or noncolor; the availability of color depends on whether you are using an extended data stream (EDS) terminal. The `COLOR ON` command displays a color graph; the `COLOR OFF` command returns to a noncolor display.

- Interpretation of Graphs that List Totals

- Interpretation of Graphs that List Averages

- Commands Used to Control Graphs

- Accessing a Vertical Graph

- Accessing a Horizontal Graph

### Interpretation of Graphs that List Totals

A vertical or horizontal graph of total transactions or total calls is interpreted in terms of two parameters set in a report definition (Edit Report Definition screen): the `Response Time Interval` and the `Response Time Threshold`. The following gives the physical manifestation of that interpretation as well as describing it:

Interpretation | Color | Symbol | Description
--- | --- | --- | ---
Good Response Time | Green | `-` | Intervals or ranges that fall below the value set for the Response Time Interval parameter.
Warning | Yellow | `=` | Intervals or ranges that fall between the value set for the `Response Time Interval` parameter and the value set for the `Response Time Threshold` parameter.
Poor Response Time | Red | `*` | Intervals or ranges that exceed the value set for the `Response Time Threshold` parameter.

Anmerkung
The symbol shown in the table is used when the display is not in color.

The following are several examples of how to interpret the values on these graphs:

- For a good response time:

  If the `Response Time Interval = 0.5`, all transactions with a response time under 0.5 seconds are displayed in green or with the minus sign character (`-`).

- For a warning:

  If the `Response Time Interval = 0.5` and the `Response Time Threshold = 3.5`, all transactions with a response time between 0.5 and 3.5 seconds are displayed in yellow or with the equal sign character (`=`) when not in color.

- For a poor response time:

  If the `Response Time Threshold = 3.5`, all transactions with a response time that exceeds 3.5 seconds are displayed in red or with the asterisk character (`*`).

### Interpretation of Graphs that List Averages

A vertical or horizontal graph of average calls is interpreted in terms of average number thresholds as follows:

Interpretation | Color | Symbol | Description
--- | --- | --- | ---
Good Response Time | Green | `-` | Average number of calls is less than or (Threshold 25) equal to 25.
Warning | Yellow | `=` | Average number of calls is greater than (Threshold 50) 25 and is less than or equal to 50.
Poor Response Time | Red | `*` | Average number of calls is greater than (Beyond Threshold 50) 50.

Anmerkung
The symbol shown in the table is used when the display is not in color.

The following are several examples of how to interpret the values on these graphs:

- For a good response time (when the threshold is 25):

  If an average of 20 database calls is listed within the interval of 1.0 to 1.5 seconds, it is displayed in green or with the minus sign character (`-`).

- For a warning (when the threshold is 50):

  If an average of 40 database calls is listed within the interval of 1.5 to 2.0 seconds, it is displayed in yellow or with the equal sign character (`=`).

- For a poor response time (when the threshold is greater than 50):

  If an average of 70 database calls is listed within the interval of 2.5 to 3.0 seconds, it is displayed in red or with the asterisk character (`*`).

### Commands Used to Control Graphs

In addition to the commands and PF keys that are generally available within the system, the following special commands and PF keys control the various types of vertical and horizontal graphs available:

See Function Codes and Commands for a description of all function codes, PF keys, and commands available within Natural Monitor.

PF Key | Command | Description
--- | --- | ---
PF2 | `HIST`/`CURR` | Toggles between current and historical data.
PF4 | `TRANS` | Accesses the default graph, the total number of transactions.
PF5 | `CALLS` | Displays the total number of database calls issued for the total number of transactions. Each database call increases the transaction response time.
PF6 | `ACALL` | Displays the average number of database calls issued for the total number of transactions.
PF10 | `HORI` | Toggles to a horizontal graph from a vertical graph.
PF10 | `VERT` | Toggles to a vertical graph from a horizontal graph.
| `COLOR OFF` | Displays a noncolor graph.
| `COLOR ON` | Displays a color graph.

### Accessing a Vertical Graph

The command `VW` enables you to view graphs vertically. There are two ways to use it.

To access a vertical graph

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

       RT VW reportname

2. From the list of report definitions, started reports, or the expanded list of historical snapshots, type `VW` in the `Sel` column next to the selected report (or historical snapshot) and press ENTER.

A default vertical graph appears similar to the one shown below:

      10:26:12                ***** REVIEW NM UTILITY *****                2006-03-02
                  - Response time per transaction: SYSTEM RESPONSE TIME -
                         - from 1998/03/16 11:00:01 to 12:00:00 -

               !
            100+
               !   286
               ! --84%
             75+ -----
      % of     ! -----
      Total    ! -----
      Trans  50+ -----
               ! -----
               ! -----
             25+ -----
               ! -----    24     5     7     3     1     2     2     2           7
               ! ----- ===7% ===1% ===2% ==<1% ==<1% ==<1% **<1% **<1%     0 ***2%
               +------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-
               0     0.5   1.0   1.5   2.0   2.5   3.0   3.5   4.0   4.5   5.0 Over
                                Response Time Interval in Seconds

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help  Curr  Exit  Trans Calls ACall                   Hori        Menu

The default vertical graph illustrated above shows various response times for transactions. The following table describes the different graphs available in the vertical format:

Graph | Command/PF Key | Description
--- | --- | ---
`% of Total Trans` | `TRANS`/PF4 | The percentage of total transactions that a specific response time interval represents (default).
`% of Total Calls` | `CALLS`/PF5 | The percentage of total calls that a specific response time interval represents.
`Avg Call/Trans` | `ACALL`/PF6 | The average number of database calls issued for each transaction within a specific response time interval.

The following table describes the fields found on a vertical graph:

Field | Graph(s) | Description
--- | --- | ---
`Avg DB Calls/Tran` | `Avg Call/Trans` | The average number of database calls issued for each transaction within a specific response time interval.
`Response Time Interval in Seconds` | `Avg DB Calls/Tran` `% of Total Trans` `% of Total DB Calls` | The average number of database calls issued for each transaction within a specific response time interval.
% of Total | `% of Total Trans` `% of Total DB Calls` | The percentage of the total that a specific range represents.

The following are three examples of how to interpret the values on these graphs:

- On the graph displaying the % of total transactions (see the above screen):

  84% of all transactions experienced a response time between 0 and 0.5 of one second.

- For a graph displaying the % of total DB calls:

  20% of total calls for transactions may have occurred between 0 and 0.5 of one second.

- For a graph displaying average DB calls per transaction:

  an average of 175 DB calls per transaction may have occurred between 1.5 and 2.0 seconds.

### Accessing a Horizontal Graph

The command `VH` enables you to view graphs horizontally. There are two ways to use it.

To access a horizontal graph

1. From any screen within Natural Monitor, type the following string on the command line and press ENTER:

        RT VH reportname

2. From the list of report definitions, started reports, or the expanded list of historical snapshots, type `VH` in the `Sel` column next to the selected report (or historical snapshot) and press ENTER.

A default horizontal graph appears similar to the one shown below:

      10:26:12                ***** REVIEW NM UTILITY *****                2006-03-02
                  - Response time per transaction: SYSTEM RESPONSE TIME -
                         - from 1998/03/16 11:00:01 to 12:00:00 -

        Response     Num of  % of
       Time Range     Trans Total
      ------------ -------- -----  ---10---20---30---40---50---60---70---80---90--100
        0.0    0.5      286  84.3  ------------------------------------------>
        0.5    1.0       24   7.0  ===>
        1.0    1.5        5   1.4  >
        1.5    2.0        7   2.0  =>
        2.0    2.5        3   0.8  >
        2.5    3.0        1   0.2  >
        3.0    3.5        2   0.5  >
        3.5    4.0        2   0.5  >
        4.0    4.5        2   0.5  >
        4.5    5.0        0   0.0
        5.0   Over        7   2.0  *>
      ------------ -------- -----  ---10---20---30---40---50---60---70---80---90--100
      Total:            339

      Command ===>
      Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
            Help  Curr  Exit  Trans Calls ACall                   Vert        Menu

The default horizontal graph illustrated above shows various response times for transactions. The following table describes the different graphs available in the horizontal format:

Graph | Command/PF Key | Description
--- | --- | ---
`% of Total Trans` | `TRANS`/PF4 | The percentage of total transactions that a specific response time interval represents (default).
`% of Total Calls` | `CALLS`/PF5 | The percentage of total calls that a specific response time interval represents.
`Avg Call/Trans` | `ACALL`/PF6 | The average number of database calls issued for each transaction within a specific response time interval.

The following table describes the fields found on a horizontal graph:

Field | Graph(s) | Description
--- | --- | ---
`Avg Calls` | `Avg Call/Trans` | The average number of database calls issued for each transaction within a specific response time interval.
`Num of DB Calls` | `% of Total Trans` `% of Total Call` | The total number of database calls issued for the total number of transactions within a specific response time interval.
`Num of Trans` | `% of Total Trans` | The actual number of transactions that received a response within a specific response time interval.
`Response Time Range` | `% of Total Trans` `% of Total Calls` `Avg Call/Trans` | The whole or fractional number of seconds used to graph response times. This number is derived from the `Response Time Interval` field in the report definition.
`% of Total` | `% of Total Trans` `% of Total Calls` | The percentage of the total that a specific range represents.

The following are three examples of how to interpret the values on these graphs:

- On the graph displaying the % of total transactions (see the above screen):

  84.3% of the total of 339 transactions, or 286 transactions, experienced a response time between 0 and 0.49 of one second.

- For a graph displaying the % of total calls:

  5.5% of the total of 21,930 calls, or 1,228 calls, may have experienced a response time between 1.5 and 1.99 seconds.

- For a graph displaying average calls per transaction:

  an average of 225 calls per transaction (total: 675) may have occurred between 2.0 and 2.49 seconds.

## Purging Report Definitions and Started Reports

The following commands enable you to purge your report definitions and started reports. These commands are available from the list of report definitions and the list of started reports by entering

To purge a report definition

- Enter the command `PR` in the `Sel` column preceding the selected report and press ENTER.

To purge a started report

- Enter the command `PS` in the `Sel` column preceding the selected started report and press ENTER.

In both cases, the following message appears:

    Please confirm PURGE request for: reportname (Y or N).

- Verify that the correct report has been selected.

- Type `Y` at the cursor position and press ENTER to purge the report; or

  type `N` and press ENTER to retain the report.

- Purging a Started Report

- Purging a Report Definition

- Purging Historical Snapshot(s)

### Purging a Started Report

When you delete a started report, you delete only the current data accumulated by the report. The related report definition is not affected and can be modified for use as another report. Historical snapshots for the report are also retained.

Before you purge a started report, remember that a started report can be refreshed (restarted) using a modified report definition. A restarted report retains historical snapshots generated using the previous report definition.

### Purging a Report Definition

It is possible to purge a report definition without purging the related started report. However, that started report cannot thereafter be modified (that is, refreshed or restarted).

Before you purge a report definition, remember that a report definition can be modified for use with another report. You might decide to delete a report definition that has never been started and will never be started.

### Purging Historical Snapshot(s)

You may decide to purge one or more of the historical snapshots available for a particular started report. For instance, you might decide to purge the oldest historical snapshot(s). Purging a historical snapshot has no effect on the started report or its associated report definition.

To purge a historical snapshot

- Enter the command `PH` in the `Sel` column preceding the selected report and press ENTER.

  The `PH` command is available from the list of historical reports, the list of report definitions, the list of started reports and the expanded list of historical snapshots. In addition, this command is available in the command line of the expanded list of historical snapshots screen.

To purge a marked range - start

- In the expanded list of historical snapshots, enter the command `PX` in the `Sel` column preceding the historical snapshots and press ENTER.

To purge a marked range - end

- In the expanded list of historical snapshots, enter the command `PY` in the `Sel` column preceding the historical snapshots and press ENTER.

If the range of historical snapshots to be purged is not complete, the following window appears:

        Purge report(s)
          Date/Time From __________  _____
          Date/Time To   __________  _____

The following date formats are accepted:

`YYYY/MM/DD` | `YY/MM/DD`
`YYYY-MM-DD` | `YY-MM-DD`
`YYYY.MM.DD` | `YY.MM.DD`
`YYYYMMDD` | `YYMMDD`

The following time formats are accepted:

`HH:MM`
`HHMM`

If the range of historical snapshots to be purged is complete, the following window appears:

        Please verify PURGE request for
        the date and time listed below:
        From: 1998/03/17  00:00:00
        To:   1998/03/17  23:59:00

                ( Y/N )  Y

Verify that the correct report range has been selected; then type `Y` at the cursor position and press ENTER to purge the report(s); type `N` and press ENTER to retain the report(s).

### On this page

- What is a Response Time Report?
- Accessing the Response Time Subsystem
- Starting or Restarting (Refreshing) a Report
- Listing Reports
- Accessing Natural Monitor Tables
- Using Vertical and Horizontal Graphs
- Purging Report Definitions and Started Reports