Performance Guidelines
The INDICATE command displays, at the terminal, some key information
about the system that shows the current performance indicators.
Invoking the INDICATE command displays the system conditions existing at
the time the command is issued including attached processor utilization
measurement when operating in an attached processor environment. If,
after using the INDICATE command, the system analyst wants more
extensive data collection and reduction, he can use theMONITOR command.
The user can specify automatic data collection with theSYSMON macro
inDMKSYS. Coding Considerations are contained in the section "Preparing the CP System Control File (DKKSYS)." See the !I1LJIQ for the directions on using the MONITOR command to
collect performance data on a dedicated tape drive or spool file, the
format and contents of the various classes of data collection available
withMONITOR, and details of the INDICATE command options.
Using the Performance Options
The performance of a specific virtual machine can be improved by
assigning it one or more performance options. These include: favored
execution, priority, reserved page frames, locked pages, and
virtual=real.
The performance of aVM/370 system running virtual storage operating
systems can be improved if you use virtual machine assist or Extended
Control-ProgramSupport. The manner in which these are supported by the
variousVK/370 processors is detailed below:
r, Virtual Machine Assist VM/370:ECPS 1---------------------------------------------------------------------------- 1 Standard I Feature
135-3
13A
145-314A 3031 3031 AP 4341 1 1 Special Feature
135
145
158
158-3158AP 158MP 4331 1 RPQ 168
168-3168AP 168MP 3032 3033UP 3033AP 3033MP 1 Not ,Standard IAvailablel Feature
155155I1 165
165-3
135-3
138
145-3
148
3031
23031 AP2 4341 Special I Not
FeatureIAvailable 4331
12
135
145
155
155II
158
158-3158AP 158MP 165
165- 3168AP 168MP 3032 3033 3033AP 3033MP 1 ITo function with the availability of the hardware feature. I I I L 2See the for specific VM/370: EPCS functions available on this processor.
8 IBMVM/370 Planning and System Generation Guide
The INDICATE command displays, at the terminal, some key information
about the system that shows the current performance indicators.
Invoking the INDICATE command displays the system conditions existing at
the time the command is issued including attached processor utilization
measurement when operating in an attached processor environment. If,
after using the INDICATE command, the system analyst wants more
extensive data collection and reduction, he can use the
The user can specify automatic data collection with the
in
collect performance data on a dedicated tape drive or spool file, the
format and contents of the various classes of data collection available
with
Using the Performance Options
The performance of a specific virtual machine can be improved by
assigning it one or more performance options. These include: favored
execution, priority, reserved page frames, locked pages, and
virtual=real.
The performance of a
systems can be improved if you use virtual machine assist or Extended
Control-Program
various
r
135-3
13A
145-3
135
145
158
158-3
168-3
155
165-3
135-3
138
145-3
148
3031
2
Feature
12
135
145
155
155II
158
158-3
165- 3
8 IBM