The default display shows all the address spaces associated with ports that are currently in use with a socket-attached application or associated with TCP/IP. The Base Options available affect the automatic refresh rate for displaying data at your workstation and limit the amount of information displayed by either the predefined address spaces or by all ports currently in use on the selected stack.
You may choose to see only the pre-defined values by selecting the 'predefined address spaces' option. The default is the CPU times for all ports that have active TCP sessions (ports currently in use' option).
To view the CPU usage for the address spaces associated with a selected TCP/IP address space, perform the following steps:
1. On the StackView panel, click the Options button.
2. In the Options panel, select predefined address spaces to monitor.
3. On the Base Options panel, place a checkmark in the AutoRefresh box to use the screen refresh interval set.
4. Enter a value for the Refresh Interval in seconds. The minimum refresh interval must be between 29 and 400 seconds. The refresh interval and AutoRefresh controls must be set to control the updating of data at the workstation. These values only affect viewing at your workstation and do not affect the Host Monitor’s data collection rates. Avoid setting a local interval value less than the Host Monitor’s data collection rate.
5. Click Done.
6. The options selected take effect the next time the StackView panel is refreshed.
The data shown when Reports has been selected on the main panel is:
Trend Graph |
Clicking on the graph icon will chart the address space selected in real time. The graphs include: CPU time, I/O time, EXCPs and real frames.(See Trend Graph for Address Space Selection for more explanation.) |
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Name |
Address space name. |
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Ports |
The port(s) that this address space has active sessions on if using the appropriate option. This field will not show when using the show predefined address space option. |
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TCB Time |
TCB CPU time in seconds:milliseconds from the time the address space was started |
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SRB Time |
SRB CPU time in seconds:milliseconds from the time the address space was started. |
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EXCPs |
Number of Execute channel program (I/O) from the time the address space was started. |
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I/O Time |
I/O interrupt processing time from the time the address space was started. |
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Real Page Frames |
Real storage utilization by the number of frames from the time the address space was started. |
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Address Space Position |
Address space position may be swapped in, swapped out, non-swappable or in transition. Valid values are: |
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IN |
In storage | ||
OT |
Swapped out and ready | ||
LO |
Logically swapped out | ||
NS |
Non-swappable | ||
WM |
Waiting for a resource: job is swapped in, is eligible for dispatching, and has accumulated no CPU time after some seconds | ||
WL |
Wait queue: long wait as a result of either WAIT TYPE=LONG or of STIMER >0.5 seconds | ||
WT |
Wait queue: terminal wait | ||
WO |
Wait queue: reasons other than WM, WL, or WT | ||
DL |
TSO user delayed by SRM to meet response time objective | ||
PR |
Privileged | ||
>> |
In the process of being swapped out of storage | ||
<< |
In the process of being swapped into storage | ||
Last Swap |
Reason for last swap out associated with the address space. This field is blank if the address space position is NS, IN, or PR. Valid values are: |
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TI |
Terminal input wait |
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TO |
Terminal output wait |
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LW |
Long wait |
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XS |
Auxiliary storage shortage |
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RS |
Central storage shortage |
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DW |
Detected wait |
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RQ |
Requested swap |
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NQ |
Enqueue exchange |
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EX |
Exchange based on recommendation value |
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US |
Unilateral |
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TS |
Transition swap |
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AW |
APPC wait |
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IC |
Improve central storage |
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IP |
Improve system paging rate |
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MR |
Make room to swap in an out-too-long user |
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Hiperspace |
Hiperspace processing time in seconds:milliseconds from the time the address space was started. |
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Perf Group |
Performance Group number. |
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Domain |
Domain number assigned to the address space. Defaults are domain 1 for ordinary address spaces and domain 0 for privileged address spaces. |
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Address Space ID |
Address space identifier. |
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Dispatch |
Address space dispatching priority. |
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See also: