Options

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.

Figure 36. StackView Report

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.)

Name

Address space name.

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.

TCB Time

TCB CPU time in seconds:milliseconds from the time the address space was started

SRB Time

SRB CPU time in seconds:milliseconds from the time the address space was started.

EXCPs

Number of Execute channel program (I/O) from the time the address space was started.

I/O Time

I/O interrupt processing time from the time the address space was started.

Real Page Frames

Real storage utilization by the number of frames from the time the address space was started.

Address Space Position

Address space position may be swapped in, swapped out, non-swappable or in transition. Valid values are:

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:

 

TI

Terminal input wait

 

TO

Terminal output wait

 

LW

Long wait

 

XS

Auxiliary storage shortage

 

RS

Central storage shortage

 

DW

Detected wait

 

RQ

Requested swap

 

NQ

Enqueue exchange

 

EX

Exchange based on recommendation value

 

US

Unilateral

 

TS

Transition swap

 

AW

APPC wait

 

IC

Improve central storage

 

IP

Improve system paging rate

 

MR

Make room to swap in an out-too-long user

Hiperspace

Hiperspace processing time in seconds:milliseconds from the time the address space was started.

Perf Group

Performance Group number.

Domain

Domain number assigned to the address space. Defaults are domain 1 for ordinary address spaces and domain 0 for privileged address spaces.

Address Space ID

Address space identifier.

Dispatch

Address space dispatching priority.

 

 

 

 

See also: