Bug 1330320

Summary:	make pmdapapi counters multi-cpu
Product:	[Fedora] Fedora	Reporter:	Frank Ch. Eigler <fche>
Component:	pcp	Assignee:	pcp-maint <pcp-maint>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	28	CC:	fche, lberk, mgoodwin, nathans, pcp, wcohen
Target Milestone:	---
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2019-03-05 04:10:13 UTC	Type:	Bug
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Frank Ch. Eigler 2016-04-25 21:26:10 UTC

It turns out that the PAPI API does not transparently implement systemwide counters for us.  We are connecting only to cpu#0.

See the papi pernode.c test case.  Key words:

granularity - PAPI_GRN_SYS_CPU
ncpu = PAPI_get_opt(PAPI_MAX_CPUS, NULL);
the resulting values[] array should be sized ncpu-multiplied & indexed.

Comment 1 Frank Ch. Eigler 2016-04-25 21:39:52 UTC

Or instead, depending on the particular version of papi, we may manually need to do PAPI_CPU_ATTACH calls for replicated EventSets & values.

Comment 2 Jan Kurik 2016-07-26 04:49:54 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 25 development cycle.
Changing version to '25'.

Comment 3 Fedora End Of Life 2017-11-16 19:45:56 UTC

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Comment 4 Fedora End Of Life 2018-02-20 15:28:21 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 28 development cycle.
Changing version to '28'.

Comment 5 Nathan Scott 2019-03-05 04:10:13 UTC

The PAPI PMDA seems to have no users and is being phased out upstream in favour of the perfevent PMDA.  We do not plan any further development efforts on it in Fedora either.