This section describes how to obtain and use the buffer statistics available for the active Adabas Fastpath buffer.
Active Fastpath buffers can be monitored and controlled by selecting
option code 2 on the Online Services main menu or by
entering the command 2 on the
command line.
The Buffer Statistics and Interaction menu is then displayed.
17:40:46 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
- Buffer Statistics and Interaction - F12000M1
Code Service
---- -----------------------------------
1 Buffer Information
2 Database and File Information
3 Optimized Job Information
4 System Job Information
. Exit
---- -----------------------------------
Code ..: _
ABM Node ID: 33 SYSCO33
Status: Active
Started Feb 4,2003 at 12:56
Job Connection Status: Connected to SYSCO33
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Menu |
The following fields are provided:
| Field | Description |
|---|---|
| Code | Option code. The following options are available:
|
| ABM Node ID | The Node ID for the buffer being displayed
Note: Note: |
| Status | Indicates whether or not the buffer is active and when it was last started. |
| Job Connection Status | The FASTABM/System Coordinator group member to which this job is connected. |
Selecting option code 1 on the Buffer
Statistics and Interaction screen invokes the General Information screen.
Note:
You can also access this screen by entering
2.1 on the command line.
17:49:00 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
- General Information - F12100MA
Buffer Type: Global Name: SYSCO33 SVC: 240 DB: 33
Connected to: Buffer Status : Active
Started: Feb 4,2003 at: 12:56 Ave Memory Val: 12
Address: 099D3000 Size(k): 1024 Session Number: 111
------------------------------ Buffer Statistics -----------------------------
Access Type Attempts (13%) <----------Successes (66%)
Read-ahead: 3,586 (10%) 2,892 (80%)
Direct: 1,291 (3%) 342 (26%)
RCs: 49 (0%) 49 (3%)
Excluded: 28,325 (87%)
Total: 33,251 (100%) 3,283 (9%)
------------------------------------------------------------------------------
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Serv Excl Parm Zero Node Menu |
The first section of this screen provides general information for the buffer. The following information is provided:
| Field | Description |
|---|---|
| Buffer Type | The buffer type (global, member). |
| Name | The buffer name. |
| SVC | The Adabas SVC used for this buffer. |
| DB | The Adabas database for which this buffer is used to provide optimization. |
| Connected to | The job to which the buffer is connected. |
| Buffer Status | Indicates whether or not the buffer is currently active. |
| Started | The time at which the buffer was last started. |
| Ave Memory Val ... Session Number | These fields are reserved for Software AG use. |
The next section provides the buffer statistics. The following information is provided:
| Field | Description |
|---|---|
| Access Type |
Attempts: the percentage of optimization attempts (opimization
attempts divided by total number of commands). |
| Read-Ahead |
Attempts: the number of read-ahead optimization attempts, and
the attempt percentage (read-ahead optimization attempts divided by total
number of commands). |
| Direct |
Attempts: the number of direct access optimization attempts,
and the attempt percentage (direct access optimization attempts divided by
total number of commands). |
| RCs | Attempts is always equal to successes. This is the number of
optimized RCs that immediately followed a direct
access command (without any intervening "next" commands).
|
| Excluded |
Attempts: the number of commands which were excluded from optimization, and percentage (number of excluded commands divided by total number of commands). Note: |
| Total |
Attempts: the total number of commands encountered by Adabas
Fastpath. |
Pressing PF6 from any of the buffer information screens displays the Excluded Command Analysis screen:
18:42:31 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-06-14
- Excluded Command Analysis - F12100ME
Buffer: Global A8P17004 Node Id: 17004 **
Statistics for commands that have optimization potential but were
unable to be optimized:
Unsuitable command type: 1609
Disqualified: 26684
Optimization was disabled: 3
Multi-fetch was already set: 0
Command details exceed Set-id limit: 0
Record Buffer exceeds the limit: 41
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Serv Gen Parm Zero Node Menu |
This screen displays the following information:
| Information | Description |
|---|---|
| Excluded - Reasons | The total number of commands excluded from optimization for the listed reasons. For more information, see Excluded Commands. |
Note:
This same analysis can be displayed for jobs, databases, and
files.
Pressing PF9 from any of the buffer information screens invokes the General Parameters screen:
16:49:32 ***** A D A B A S FASTPATH SERVICES 8.1.2 (I001) ***** 2006-10-09
- General Parameters - F12100MF
Buffer: Global ICFDCOR1 Node ID: 650
Initial Commands
Main Parameters Value Allocation Peak Usage Ignored
Size(k)..Min: 2047 2048 2047 43%
Maximum Jobs: 12 1 0
RB Length Limit: 2048 0
Set Length Limit: 1024 0
Other Parameters Value Value
Default pacing rate: 10 Set Concurrency: 2
Freespace Index Entries: 512 Average Item Size: 256
Log every n minutes: 60 Keep for n days: 30
Autorestart: Y Restart every n Hrs: 4
Restart Time: 08:00 Synchronous Remote Updates: Y
Direct Access: ON Read-ahead Processing: ON
FIND SX/L1: ON READ PHYSICAL L2: ON
READ LOGICAL L3: ON HISTOGRAM L9: ON
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
Help Exit Serv Excl Gen Node Menu
|
For description and use of these parameters, see section Adabas Fastpath Parameters.
The following PF keys are available throughout the series of buffer information screens:
| PF Key | Name | Function |
|---|---|---|
| PF4 | Refr | Refreshes the statistics |
| PF5 | Serv | Invokes the function Asynchronous Buffer Services |
| PF5 | Parms | Displays the file parameters for this buffer |
| PF6 | Excl | Displays the Excluded Command Analysis screen |
| PF6 | Look | Invokes AFPLOOK |
| PF7 | Gen | Reverts to the General Information screen |
| PF9 | Parm | Displays the General Parameters screen |
| PF9 | More | Displays the next file or job detail display |
| PF10 | Cntl | Displays details of the master control set for the file |
| PF10 | Conc | Displays set concurrency information |
| PF10 | SysJ | Toggles from the User Job Summary to the System Job Summary screen |
| PF10 | UserJ | Toggles from the System Job Summary to the User Job Summary screen |
| PF10 | Zero | Resets the display counts to zero and automatically refreshes |
| PF11 | Node | Displays the Buffer Statistics menu |
Selecting option code 2 on the Buffer
Statistics and Interaction screen, invokes the Database Summary screen.
Note:
You can also access this screen by entering
2.2 on the command line.
For each database, a summary of activity is displayed as shown on the following example screen:
10:25:30 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
Database Summary from Global SYSCO33 Node ID 33 F12200MA
Buffer Session: 111 Started: Feb 4,2003 12:56 Size(k): 1024
C DB SVC Attempts Optimized Set Usage(k) Status
_ 19 240 DB Down
_ 198 240 5607 3774 114 Remote Optimizing
Totals: 5607 100% 3774 100% 114 100%
Mark with F(ile),D(etail),S(ervices)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Node Menu |
The following information is provided on this screen:
| Field | Description |
|---|---|
| Buffer Session | The buffer session number. |
| Started | The time at which the buffer was last started. |
| Size | The memory allocation for the buffer. |
| C | Option code. The following options are available:
|
| DB | The Adabas database. |
| SVC | The Adabas SVC. |
| Attempts | The total number of optimization attempts. |
| Optimized | The total number of successful optimization attempts. |
| Set Usage | The number of direct access sets used. |
| Status | The status of the database. |
If the option code s is selected for a
database, the following window is displayed:
10:27:51 2006-05-19
F12200MC
Stop/Start Optimization
for: Database 198
S Stop Optimization
R Start Optimization
. Exit
Code..:
Command ==>
PF1 Help PF3 Exit |
Using this window, you can stop/restart optimization for a database.
If database optimization is stopped, no further optimization occurs for its files and sets. In addition, all direct access data is removed from the Adabas Fastpath buffer for sets belonging to files within this database.
Note:
A similar service is available at the file and file set
levels.
If the option code d is selected for a
database, the Database Details screen is displayed.
This screen contains a performance analysis for the selected database.
10:29:44 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
Database Details from Global SYSCO33 Node ID 33 F12200MB
Database: 198 SVC: 240
---------------------------- Optimization Summary ----------------------------
Access Type Attempts (98%) <----------Successes (67%)
Read-ahead: 3,676 (64%) 2,938 (79%)
Direct: 1,953 (34%) 853 (43%)
RCs: 53 (0%) 53 (2%)
Excluded: 31 (0%)
Total: 5,713 (100%) 3,844 (67%)
------------------------------------------------------------------------------
Updates: 11 Over-reads: 91 (3%)
Status 1: 40 0C 20 10 Bad Response: Lock: 00000000 DBE Addr: 099F07C0
ADABAS Vers: 811 Hex: 07010200 Location: 040000FF
DBID from GCB: 198 Nuc ID: 198
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Excl Zero Node Menu |
The first section of this screen (Optimization Summary) provides optimization statistics for this database. This information is provided in the same format as that provided at the buffer level (see section Buffer Information). The statistics shown at the database level are exclusively for commands that are eligible for optimization. The excluded count therefore differs from the buffer level count.
The second section of this screen provides the following information:
| Field | Description |
|---|---|
| Updates | The number of update commands processed for this database. |
| Over-reads |
The number of read-aheads performed but not needed by the application, and the percentage of non-needed over-reads to the number of successful read-aheads. Non-needed over-reads represent overhead that may reduce the effectiveness of read-ahead optimization. In general, over-reads should not exceed 25% of read-ahead successes. |
| Status ... Nuc ID | These fields are reserved for Software AG use. |
Pressing PF6 on the Database Details screen displays the excluded command analysis for the selected database:
18:49:31 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-06-14
Database Details From Global A8P17004 Node Id 17004 ** F12200MG
Statistics for commands that have optimization potential but were
unable to be optimized:
Unsuitable command type: 0
Disqualified: 0
Optimization was disabled: 4
Multi-fetch was already set: 0
Command details exceed Set-id limit: 0
Record Buffer exceeds the limit: 86
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Serv Gen Parm Zero Node Menu |
The information is provided in the same format as that provided at the buffer level (see section Buffer Information).
Note:
A similar analysis can be displayed from the file detail
screen.
If the option code f is selected for a
database, the File Summary screen is displayed.
Note:
You can also access this screen by entering
2.2.1 on the command line.
This screen displays a summary of activity for each file in the selected database.
10:32:21 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
File Summary from Global SYSCO33 Node Id 33 F12210MA
Database: 198 SVC 240
C File Attempts Optimized Set Usage(k) Status
_ 7 3674 (64%) 2536 (65%) 15 (13%) Optimizing
_ 19 2051 (36%) 1347 (35%) 98 (86%) Optimizing
Totals: 5725 100% 3883 100% 114 100%
Mark with D(etail),F(ile Sets),S(ervices)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Node Menu |
The following information is provided:
| Field | Description |
|---|---|
| C | Option code. The following options are
available:
|
| File | The Adabas file number. |
| Attempts | The total number and percentage of optimization attempts. |
| Optimized | The total number and percentage of successful optimization attempts. |
| Set Usage | The number and percentage of direct access sets used. |
| Status | The status of the file (optimizing or not optimizing). |
If option code d is selected on the File
Summary screen, the File Details screen is displayed.
This screen contains optimization performance information for the selected file.
10:33:26 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
File Details from Global SYSCO33 Node Id 33 F12210MB
Database: 198 SVC 240 File: 7
---------------------------- Optimization Summary ----------------------------
Access Type Attempts (99%) <----------Successes (69%)
Read-ahead: 2,921 (79%) 2,508 (85%)
Direct: 740 (20%) 15 (2%)
RCs: 13 (0%) 13 (1%)
Excluded: 12 (0%)
Total: 3,686 (100%) 2,536 (68%)
------------------------------------------------------------------------------
Updates: Over-reads: 57 (2%)
Set Limit(k): 1024 Update Sensitivity: R
Set Id Length Limit: 1024 RB Length Limit: 2048 Set Concurrency: 2
Status: 00 D4 Last RC: Next Event: 0:00 Addr: 099F29C0
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Excl More Zero Node Menu |
The first section of this screen (Optimization Summary) provides optimization statistics for the file. This information is provided in the same format as that provided at the database level.
The second section of this screen provides the following information:
| Field | Description |
|---|---|
| Updates | The number of update commands processed for this file. |
| Over-reads |
The number of read-aheads performed but not needed by the application, and the percentage of non-needed over-reads to the number of successful read-aheads. Non-needed over-reads represent overhead that may reduce the effectiveness of read-ahead optimization. In general, over-reads should not exceed 25% of read-ahead successes. |
| Set Limit ... Set Concurrency | The current settings for various file optimization parameters. For a description of each parameter, see the section Adabas Fastpath Parameters. |
| Status ... Addr | These fields are reserved for Software AG use. |
Pressing PF9 invokes the second File Details screen. This screen shows whether or not optimization has been defined for the Adabas command/descriptor pairs which are used to access the file.
10:37:21 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
- File Details for File 19 DBID 198 SVC 240 - F12210ME
Expanded File N
On/Off Adabas Field Overrides ........Direct Access......
L1 On
L3 On
L9 On
S1 On
S2 On
Over-reads Default Adabas Field Overrides ........Read-ahead.........
L1 On
L2 On
34 L3 On
L9 On
S1 On
S2 On
S8 On
S9 On
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Excl Gen Node Menu |
The two sections of the screen provide optimization information for direct access and read-ahead commands respectively.
The following information is provided:
| Field | Description |
|---|---|
| Command | Adabas command. |
| On/Off | Indicates whether or not optimization is in effect for the command. |
| Adabas Field Overrides | Indicates whether or not Adabas field overrides have been defined. |
| Over-reads |
The number of read-aheads performed but not needed for the command. Non-needed over-reads represent overhead that may reduce the effectiveness of read-ahead optimization. In general, over-reads should not exceed 25% of read-ahead successes. |
If the option code f is entered for a file
on the File Summary screen, the Set Summary screen is displayed. This screen
contains summary information for each Adabas command/descriptor pairing:
Note:
You can also access this screen by entering
2.2.2 on any command line.
Note:
You can also access this screen using PF9 from AFPLOOK
File Details or File Parameter Maintenance. In addition, this screen gives hot
key access to AFPLOOK (PF6) and File Parameters (PF5).
Pressing PF10 displays details of the master control set for the
file.
10:38:27 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
Set Summary from Global SYSCO33 Node Id 33 F12220MA
Database: 198 SVC 240 File: 19
Number of Items.... Memory (k).... Efficiency Ratings
C CC De Sets In Use Peak Optimized In Use Peak Set Memory Growth
_ L1 2 5 24 25 5 27 9 5 0.13
_ L3 KK 3 10 32 75 12 39 5 6 0.15
_ S1 KK 2 19 40 772 2 21 9 386 10.15
_ L3 KK 1 8 5 9 5
Mark with D(etail),F(ull Set List)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Parms Look Cntl Node Menu |
The following information is provided:
| Field | Description |
|---|---|
| C | Option code. The following options are
available:
|
| CC De | The Adabas command/descriptor pair for which information is provided. |
| Sets | The number of sets that have been added together to make the summary. |
| Number of Items | The number of items (records) in use at the present time, the peak number of items used, and the number of times items in the set were used for optimization. |
| Memory | The memory in use to hold the data in the sets (in k) and the peak memory usage for all sets. |
| Efficiency Ratings |
Set Efficiency. The nominal CPU effort needed to maintain the set(s) (for example, adding, removing, overwriting) versus the CPU effort saved by optimization. The rating is on a scale of 0 to 9, where 0 means that the set(s) are estimated to use more CPU in maintenance than it gains by optimization. Memory. The number of commands optimized for the set(s) divided by the memory used. The higher the rating (maximum 9999), the better the value of the set(s) in terms of memory usage. Growth Rating. A ratio of the memory value rating to the average memory value for the whole Adabas Fastpath buffer. A rating of 1.00 is average. Adabas Fastpath uses this rating to increase set expansion for sets above average (> 1.00) and to restrict expansion for below average sets. |
If the option code f is selected for a
command/descriptor pair on the File Set Summary screen, the Set Summary screen
will be displayed.
This screen contains an activity summary for each direct access set used by the selected command/descriptor pair.
10:39:56 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
Set Summary from Global SYSCO33 Node Id 33 F12230MA
Database: 198 SVC 240 File: 19 CC: L3 De: KK
Number of Items...... Memory (k)..... Efficiency Ratings
C SSID In Use Peak Optimized In Use Peak Set Memory Growth
_ 3 4 16 45 4 19 5 11 0.28
_ 5 6 8 30 7 10 7 4 0.10
_ 7 8 10
Mark with D(etail),S(start/stop)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Cntl Node Menu |
The following information is provided:
| Field | Description |
|---|---|
| C | Option code. The following options are
available:
|
| SSID | SSID (Short Set ID) is a number used internally to identify different sets. The lower the number, the older the set. |
| Sets ... Ratings | The remaining fields on this screen are as described in the previous section File Set Summary. |
The Set Detail screen can be invoked by selecting the option code
d for a set or pressing PF10 on the File
Set Summary screen:
10:40:31 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
Set Detail from Global SYSCO33 Node Id 33 F12230MB
Database: 198 SVC 240 File: 19
Command: L3 Primary Descriptor: KK SSID: 3
Efficiency Ratings: Set: 5 Memory: 11 Growth: 0.28
Items - Optimized: 45 Added: 15 Collisions:
Current: 4 Peak: 5 Free: 12
Removed: 11 RLU: 11 Overwrites:
Set Resets:
Memory - Used(k): 4 Peak(k): 19 Free(k): 1
Status: 00 C8 0E 08 Expansion: 1 Acc.Mask Entries 1
Used FB: 27 RB: 1056 Indexes: 3 Address: 09A00234
Lengths: SB: 8 VB: 32 Code: Lock: 00000000
SetID Length: 47
Reject:
SB KK,32,B.
FB KK,032,B,DD0001-0016,064,B.
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Conc Menu
|
The following information is provided:
| Field | Description |
|---|---|
| Efficency Ratings |
Set Efficiency. The nominal CPU effort needed to maintain the set(s) (for example, adding, removing, overwriting) versus the CPU effort saved by optimization. The rating is on a scale of 0 to 9, where 0 means that the set(s) are estimated to use more CPU in maintenance than it gains by optimization. Memory. The number of commands optimized for the set(s) divided by the memory used. The higher the rating (maximum 9999), the better the value of the set(s) in terms of memory usage. Growth Rating. A ratio of the memory value rating to the average memory value for the whole Adabas Fastpath buffer. A rating of 1.00 is average. Adabas Fastpath uses this rating to increase set expansion for sets above average (> 1.00) and to restrict expansion for below average sets. |
| Items ... |
Optimized: the number of successful optimizations from data
records in the set. |
| Memory | The memory in use to hold the data in the sets (in k) and the peak memory usage for all sets. |
| Status ... Reject | These fields are reserved for Software AG use. |
Press PF10 to display set concurrency information.
Selecting option code 3 on the Buffer
Statistics and Interaction menu, displays the Job Summary screen.
Note:
You can also access this screen by entering
2.3 on the command line.
This screen displays a summary of activity for each job.
14:37:30 ***** A D A B A S FASTPATH SERVICES 8.1.2 - DEMO ***** 2006-05-19
- Job Summary for Global SYSCO33 Node ID 33 - F12300MA
Buffer Session: 3 Started: May 19,2006 13:59 Size(k): 4096
C Job Name Number Job Type Attempts Optimized Memory(k) Status
_ DAEFCODE C30694 COM-PLETE 258 194 Active
_ Unused
_ Unused
_ Unused
_ Unused
_ Unused
_ Unused
_ Unused
_ Unused
_ Unused
_ GXNDCP72 B41763 Batch Disconnected
_ GXNDCP72 B41766 Batch Disconnected
Mark with D(etail),S(ervices)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Sysj Node Menu |
The following information is provided:
| Field | Description |
|---|---|
| C | Option code. The following options are available:
|
| Job Name Number Type | The job name, job number and job type. |
| Attempts | The number of optimization attempts. |
| Optimized | The number of successful optimization attempts. |
| Memory | Memory used by the job. |
| Status | The status of the job (active, unused,
disconnected).
Note: |
Press PF10 to display the System Job Summary screen.
Selecting option code d for a job on the Job
Summary screen displays the Job Details screen.
10:52:46 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
- Job Details from Global SYSCO33 Node ID 33 - F12300MB
Job: DAEFCODE Type: COM-PLETE Number: C30694
---------------------------- Optimization Summary ----------------------------
Access Type Attempts (4%) <----------Successes (73%)
Read-ahead: 85 (1%) 45 (52%)
Direct: 173 (3%) 143 (82%)
RCs: 6 (0%) 6 (3%)
Excluded: 4,161 (96%)
Total: 4,425 (100%) 194 (4%)
------------------------------------------------------------------------------
Memory(k): RA Memory: Over-reads: 6
Status: 00 00 00 00 System ID: DAEFCODE Area Address: 099E28C8
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Excl More Zero Node Menu |
The first section of this screen (Optimization Summary) provides optimization statistics for this job. This information is provided in the same format as that provided at the buffer and database level (see section Buffer Information).
The following additional fields are displayed:
| Field | Description |
|---|---|
| Memory | The total memory, in kilobytes, of all memory classes used for this job. |
| RA Memory | The total memory, in kilobytes, of all read-ahead areas allocated to this job. |
| Over-reads |
The number of read-aheads performed but not needed by this job, and the percentage of non-needed over-reads to the number of successful read-aheads. Non-needed over-reads represent overhead that may reduce the effectiveness of read-ahead optimization. In general, over-reads should not exceed 25% of read-ahead successes. |
| Status ... Address | These fields are reserved for Software AG use. |
PF9 on the Job Details screen can be used to display the second job detail screen.
15:51:19 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-06-15
Job Details from Global RDUABM81 Node Id 8004 F12300MC
Job: UKRPE Type: TSO Number: U43517 Started Jun 15,2006 15:00
Job Information---------------------------------------------------------------
Peak Concurrency...: 0
User Areas: In Use: 0 Peak: 0 Recovered: 0
CID Areas: In Use: 0 Peak: 2
Read-ahead Memory Categories--------------------------------------------------
Size(k): 4 Peak No: 0 Usage: 89 Failures: 0
8 0 1 0
16 0 0 0
32 0 0 0
Client Runtime Controls----------------------------------------------------------------
Job End Stats..: N Direct Access: ON
Read-ahead Optimization Control: BAT Read-ahead Limit(k): 0
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit Refr Excl Gen Node Menu |
The first section of this screen (Job Information) provides the following information:
| Field | Description |
|---|---|
| Peak Concurrency | The number of command work areas allocated to this job. |
| User Areas |
In Use: the number of user areas currently in use. Peak: the highest number of user areas which have been concurrently in use. Recovered: the number of times an old user area was recovered (reused) to satisfy the requirement for a new user area. |
| CID Areas |
In Use: the number of Command ID areas currently in use. Peak: the highest number of Command ID areas which have been concurrently in use. |
The second section (Read-Ahead Memory Categories) provides the following information:
| Field | Description |
|---|---|
| Size(k) | The four sizes available for read-ahead memory allocation from the Adabas Fastpath buffer. |
| Peak No | The highest number of read-ahead areas, by size, allocated to this job. |
| Usage | The number of times the size category was used. |
| Failures | The number of times the size category request could not be satisfied. |
The third section contains the current values for the client runtime controls. See the section Adabas Fastpath Parameters for descriptions of these parameters.
Note:
The parameter values currently being used by the job are displayed.
Once a job is disconnected, these values are reset automatically to the default
parameter values.
PF6 can be used to display the Excluded Command Analysis screen as described in the section Buffer Information.
Selecting option code 4 on the Buffer
Statistics and Interaction screen invokes the System Job Summary screen.
Note:
You can also access this screen by entering
2.4 on the command line.
This screen contains a list of system job areas for the active Adabas Fastpath buffer. This is normally the Asynchronous Buffer Manager task and any database components.
10:56:03 ***** A D A B A S FASTPATH SERVICES 8.1.2 ***** 2006-05-19
System Job Summary for Global SYSCO33 Node ID 33 F12400MA
Buffer Session: 111 Started: May 19,2006 12:56 Size(k):1024
C Job Name Number Job Type SVC DB Nuc ID Status
_ SYSCO33 C21567 AFPABM Active
_ NUC193 C21002 AFPADA 254 193 193 Active
_ Unused
Mark with D(etail),S(ervices)
Command ==>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12
Help Exit UserJ Node
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The following information is provided:
| Field | Description |
|---|---|
| C | Option code. The following options are available:
Note: |
| Job Name Number Type | The job name, job number and job type. |
| SVC | The Adabas SVC used for this job. |
| DB | The Adabas database used for this job. This is the "external" DBID (DBID used by the application program). |
| Nuc ID | This ID is used by a member of Adabas Parallel/Cluster Services. These services may have "internal" DB numbers. |
| Status | The status of the job (active, unused). |
PF10 can be used to display the Optimized Job Summary screen.
