* another war story script
@ 2007-05-11 19:37 Frank Ch. Eigler
2007-05-11 20:21 ` Jim Keniston
2007-05-16 16:54 ` Mike Mason
0 siblings, 2 replies; 4+ messages in thread
From: Frank Ch. Eigler @ 2007-05-11 19:37 UTC (permalink / raw)
To: systemtap
Hi -
http://sources.redhat.com/systemtap/wiki/WSthreadCPUshare
- FChE
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: another war story script
2007-05-11 19:37 another war story script Frank Ch. Eigler
@ 2007-05-11 20:21 ` Jim Keniston
2007-05-11 20:24 ` Frank Ch. Eigler
2007-05-16 16:54 ` Mike Mason
1 sibling, 1 reply; 4+ messages in thread
From: Jim Keniston @ 2007-05-11 20:21 UTC (permalink / raw)
To: Frank Ch. Eigler; +Cc: systemtap
On Fri, 2007-05-11 at 15:37 -0400, Frank Ch. Eigler wrote:
> Hi -
>
> http://sources.redhat.com/systemtap/wiki/WSthreadCPUshare
>
> - FChE
This is neat. One observation: The use of the name "tids" for the array
of per-task total-ticks was confusing -- especially given the
declarations
global uticks, kticks, ticks
global tids
which suggest that uticks, kticks, ticks are one sort of animal and tids
is a different sort.
Jim
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: another war story script
2007-05-11 20:21 ` Jim Keniston
@ 2007-05-11 20:24 ` Frank Ch. Eigler
0 siblings, 0 replies; 4+ messages in thread
From: Frank Ch. Eigler @ 2007-05-11 20:24 UTC (permalink / raw)
To: Jim Keniston; +Cc: systemtap
Hi -
> [..]
> global uticks, kticks, ticks
> global tids
> which suggest that uticks, kticks, ticks are one sort of animal and tids
> is a different sort.
Yeah, "tids" could be "total-ticks" or somesuch. It *is* a different
sort of animal because tids is filled and emptied entirely during the
reporting function.
- FChE
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: another war story script
2007-05-11 19:37 another war story script Frank Ch. Eigler
2007-05-11 20:21 ` Jim Keniston
@ 2007-05-16 16:54 ` Mike Mason
1 sibling, 0 replies; 4+ messages in thread
From: Mike Mason @ 2007-05-16 16:54 UTC (permalink / raw)
To: Frank Ch. Eigler; +Cc: systemtap
Interesting... I haven't paid much attention to timer.profile, but now see how it can be useful.
I'm probably missing something, but isn't this script essentially doing the same thing as the time accounting done via utime and stime in task_struct? Does it account for time that isn't reflected in utime and stime?
Mike
Frank Ch. Eigler wrote:
> Hi -
>
> http://sources.redhat.com/systemtap/wiki/WSthreadCPUshare
>
> - FChE
^ permalink raw reply [flat|nested] 4+ messages in thread
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2007-05-11 19:37 another war story script Frank Ch. Eigler
2007-05-11 20:21 ` Jim Keniston
2007-05-11 20:24 ` Frank Ch. Eigler
2007-05-16 16:54 ` Mike Mason
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