What does ChgCnt: value in SHOW CPU /FULL mean?

[Sebastian Bazley]

In the following sample of SHOW CPU /FULL output:

CPU 0 State: RUN ...
ChgCnt: 0 State: Present, Primary

what does "ChgCnt:" mean?

I've looked in the DCL manual and searched, but could not find anything.

[John Gillings]

Sebastian,

Good question. I think it's a Galaxy counter. Maybe counting state changes or migrations between partitions?

I've found some SHOW CPU displays where it's non-zero.

[Petr Spisek]

Hi Sebastian,
this counter is changing, when CPU is stoped (started) or migated to another Galaxy partiton.

Petr

[Petr Spisek]

completion:
- I found this counter only on AlphaServers GS*
- You can try this STOP/CPU and START/CPU to active set on mutiprocessing system.
P.

[Sebastian Bazley]

ChgCnt appears in ES40 and ES45 output, but I've not yet seen it as anything other than 0.

[Petr Spisek]

Try to stop and start non primary cpu. You will see.
Petr

[Sebastian Bazley]

Just tried stopping/starting cpu 3 on an ES40, and the ChgCnt remains as 0.

I don't have access to a GS series system at present.

[Petr Spisek]

... and what version of VMS do you have? I haven't possibility to try this on ES40, but for AS4100 (with the same os version V7.3-2) value ChgCnt doesn't exist. On GS* work properly - see attachment. Maybe it's the feature for EV6 and EV7, but why it doesn't work on ES40, I don't know. ES40 contains EV68, isn't it?
Petr

[Sebastian Bazley]

The ES40 I used is running 7.3-2, and SHOW CPU/FULL gives:

Type.....: EV67, Pass 2.2.3 & Pass 2.2.5

for all the CPUs

[Ian Miller.]

Are you using Galaxy?