This function invokes the List Objects screen where you can obtain statistical data on the directories of Natural objects currently loaded in the buffer pool (BP) or the BP cache (if used).
This section provides information on the statistical data displayed on the List Objects screen and the commands and functions available for selecting an object or a range of objects, manipulating their current status or navigating in the List Objects screen.
See also the function for a sorted display of objects.
To invoke the List Objects screen
In the SYSBPM Main Menu, in the
Code field, enter function code L and specify
the object(s): see the valid field input values described
in the section Invoking and Operating SYSBPM.
Or:
Go directly to the list of objects in the buffer pool by entering
the following SYSBPM direct command:
DISPLAY LIST library-name object-name dbid fnr
Or:
Go directly to the list of objects in the BP cache by entering the
following SYSBPM direct command:
DISPLAY CLIST library-name object-name dbid fnr
A List Objects screen similar to the example below appears:
17:13:17 ***** NATURAL SYSBPM UTILITY ***** 2002-09-16
BPNAME QA41GBP - List Objects - Type Global Nat
BPPROP OFF Loc DAEF QA41
C Library Object DBID FNR Loc RLD Use Max Reuse TotalUC ObjSize Sto
*_______ *_______ _____ ____ ___ ___ ___ ___ ______ ___________ _______ ___
__ SYSBPM BPMCALL 10 1640 B 1 1 5 8,516 12
__ SYSBPM BPMNSC 10 410 B 1 4 3,380 4
__ SYSDLINP PCNDL02 255 253 B R 1 19 292 4
__ SYSLIBS NAT00017 10 410 B 1 1 5,000 8
__ SYSLIB ATEST 10 1640 B R 1 340 16,148 16
__ SYSLIB CATALL10 10 410 B 1 1 4,256 8
__ SYSBPM BPM141-M 10 1640 B 1 1 5,944 8
__ SYSDLINS U246005 255 253 B R 1 14 52 4
__ SYSBPM MENU 10 1640 B 1 5 10,392 12
__ SYSLIBS NAT00040 10 410 B 1 1 2,816 4
__ SYSLIBS NAT00034 10 410 B 1 1 2,672 4
__ SYSDLIND DNDL01 255 253 B R 3 42 552 4
__ SYSLIB ACATALL 10 410 B 1 3 55,728 56
__ SYSDLINS U246004 255 253 B R 2 28 172 4
Top of List
Command ===>
Enter-PF1---PF2---PF3---PF4---PF5---PF6---PF7---PF8---PF9---PF10--PF11--PF12---
Help Exit Last Cache -- - + ++ > Canc
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The List Objects screen lists all individual objects
currently loaded in the buffer pool (first part of the display) and
currently loaded in the BP cache (second part of the display).
The statistics displayed are snapshots of the contents of the buffer pool which are refreshed every time you press ENTER.
On the List Objects screen, two entries may be displayed for a GDA (global data area): one entry contains data in the GDA itself and the other entry contains the internal Natural symbol table for this GDA. This can happen if a program has been cataloged that references a GDA.
This section describes the columns and statistical data displayed on the List Objects screen, and the input field and values provided for specifying object selection criteria.
To specify selection criteria for the objects to be displayed
In the input fields underneath the column titles, enter a valid value or range as described for the relevant fields.
The default value is a blank character or asterisk (*) which selects all objects.
| Column | Explanation | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | In this column, you can enter a line command to perform a function for the object. See also Line Commands. | ||||||||||||||||||||||||||||||||||
| Library | The library from which the object was loaded.
To specify selection criteria, see Name and Range Specification. |
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| Object | The name of the object.
To specify selection criteria, see Name and Range Specification. |
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| DBID | The database ID of the Natural system file from which the
object was loaded.
To select objects of a specific database, enter a valid numeric value. |
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| FNR | The file number of the Natural system file from which the
object was loaded.
To select objects of a specific file, enter a valid numeric value. |
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| Loc |
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| RLD |
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| Use |
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| Max | Buffer pool only.
The maximum number of applications that have executed the object since it was loaded into the buffer pool. To select objects, see the valid input values in Use above. |
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| Reuse | BP cache only.
Indicates how many time the object has been loaded (reused) from the BP cache into the buffer pool. To select objects, see the valid input values in Use above. |
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| TotalUC |
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| ObjSize | The size of the object.
To select objects, see the valid input values in TotalUC above. |
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| Sto | Storage that has to be allocated for the object in the buffer
pool or BP cache. The text record size of the buffer pool is defined at buffer
pool initialization.
To select objects, see the valid input values in Use above. |
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| BP Load Time* | The date and time when the object was first loaded into the
buffer pool.
This date and time will be kept until the object has been removed from both the buffer pool and BP cache (deletion from the BP cache only will not remove the display of date and time). To select objects, see Date Specification and Time Specification. |
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| BP Last Action* | Buffer pool only.
The date and time when the object was last used by an application. To select objects, see Date Specification and Time Specification. |
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| BPC Load Time* | BP cache (BPC) only.
The date and time when the object was first loaded into the BP cache. This date and time will be kept until the object has been removed from the BP cache. To select objects, see Date Specification and Time Specification. |
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| BPC Last Get* | BP cache (BPC) only.
The date and time when the object was last swapped from the buffer pool into the BP cache. This time stamp is also updated if the object was already available in the BP cache and had therefore not been written to the BP cache again. To select objects, see Date Specification and Time Specification. |
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| BPC Last Put* | BP cache (BPC) only.
The date and time when the object was last loaded from the BP cache into the buffer pool. To select objects, see Date Specification and Time Specification. |
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| 1.BPperiod* | BP cache (BPC) only.
The time frame the object has been available in the buffer pool
starting with the time the object was first loaded and ending with the time the
object was first swapped from the buffer pool into the BP cache. After 24
hours, the display of the time frame is canceled and replaced by this sign:
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| NatVers* | The Natural version number an object is cataloged with. | ||||||||||||||||||||||||||||||||||
* press PF11 to display these columns as described in PF Keys and Direct Commands
This section covers the following topics:
You can shorten the list of objects displayed on the List Objects screen by entering a name or a range of names in the input fields for Library and/or Object.
In the list of options below, value is any combination of one or more characters:
| Input Value | Selected Libraries/Objects |
|---|---|
| * | All libraries/objects.
This is the default. |
| value | All libraries/objects with a name equal to value. |
| value* | All libraries/objects with a name that starts with
value.
Example: |
| value? | All libraries/objects with a name that starts with
value and ends with any single character for each
question mark (?) entered.
Example: |
| value?value? | All items that match
value combined with asterisk (*) and question mark
(?) in any order.
Example: |
| value*value? | |
| *value?value* | |
| value> | All libraries/objects with a name greater than or equal to
value.
Example: |
| value< | All libraries/objects with a name less than or equal to
value.
Example: |
You can shorten the list of objects displayed on the List Objects screen by entering a date, a range of dates, a special date or a range of special dates in the input fields for dates.
A date must be specified in the format YYYYMMDD (YYYY = year, MM = month, DD = day).
In the list of options below, value is any combination of one or more digits:
You can shorten the list of objects displayed on the List Objects screen by entering a time or a range of times in the input fields for times.
The time must be specified in the format HH:II:SS (HH = hours, II = minutes, SS = seconds).
In the list of options below, value can be any combination of one or more digits:
| Input Value | Selected Objects |
|---|---|
| HH:II:SS | All objects with a time equal to
HH:II:SS.
Example: |
| value* | All objects with a time that starts with
value.
Example: |
| value> | All objects with a time greater than or equal to
value.
Example: |
| value< | All objects with a time less than
value.
Example: |
On the List Objects screen, you can use the PF keys or SYSBPM direct commands listed in the table below. An underlined portion of a command represents its minimum abbreviation. For further commands, see SYSBPM Direct Commands.
| PF Key | Command | Function |
|---|---|---|
| PF1 |
Provides SYSBPM help information. If chosen with the cursor on the input fields underneath the column titles: lists all possible input values for object selection. |
|
| PF3 | EXIT |
Leaves the current function/screen and displays the previous screen. |
| PF4 | LAST |
Displays the SYSBPM direct command entered most recently. |
| PF5 | CACHE |
Only applicable if BP cache data exists.
Scrolls to the top of the list with statistical data on BP cache objects. |
| PF6 | – |
Scrolls to the top of the list with statistical data on buffer pool objects. |
| PF7 | - |
Scrolls one page up in a list. |
| PF8 | + |
Scrolls one page down in a list. |
| PF9 | ++ |
Scrolls to the end of the list. |
| PF10 | < |
Scrolls left in the list.
Press PF11 to scroll to the right. |
LEFT |
||
| PF11 | > |
Scrolls right in the list and displays the
additional screen columns: BP Load Time, BP Last
Action, BPC Load Time, BPC Last
Get, BPC Last Put and
1.BPperiod.
Press PF10 to scroll to the left. |
RIGHT |
||
| PF12 |
CANCEL |
Same as EXIT.
|
| PF15 | MENU |
Invokes the SYSBPM Main Menu. |
On the List Objects screen, in column C, for each object displayed, you can enter one of the line commands listed below:
| Command | Function |
|---|---|
CL |
Buffer pool only.
Releases an object marked as resident. |
DE |
Marks an object to be deleted from the buffer pool or BP cache.
The object is deleted as soon as the relevant
Use count changes to |
HD |
Buffer pool only.
Displays in hexadecimal format the directory information of an object. |
HE |
Buffer pool only.
Corresponds to the function as described in the relevant section. |
FO |
Buffer pool only.
Deletes an object immediately from the buffer pool, regardless of the relevant Use count. |
LD |
Corresponds to the function as described in the relevant section. |
RE |
Buffer pool only.
Marks an object as resident. |
ZO |
Zooms in the fields Object,
Use, Max, Reuse,
TotalUC, ObjSize and
Sto and displays them in full length. |
For each command entered, a confirmation message appears for the relevant line overwriting text of rows displayed on the screen. Possible messages are:
Failed (in response to any function that has
not been executed successfully),
Deleted (in response to the command
DE or FO),
Released (in response to the command
CL) and
Resident (in response to the command
RE).
