misc/185047: pmcstat's -F kcachegrind output needs work
John-Mark Gurney
jmg at funkthat.com
Fri Dec 20 20:40:01 UTC 2013
>Number: 185047
>Category: misc
>Synopsis: pmcstat's -F kcachegrind output needs work
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Dec 20 20:40:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator: John-Mark Gurney
>Release: 11.0-CURRENT
>Organization:
>Environment:
>Description:
pmcstat when outputing to kcachegrind does not handle multicore very well. It will report n cores of each stat that you gathers w/o a way to add them up. It will also hide which CPU each stat was collected from, as it uses a global index between all stats.
pmcstat needs to output CPUID, and add lines like:
event: TOTAL = FR_RETIRED_X86_INSTRUCTIONS_0 + FR_RETIRED_X86_INSTRUCTIONS_1 + FR_RETIRED_X86_INSTRUCTIONS_2 + FR_RETIRED_X86_INSTRUCTIONS_3
to provide a total of the even over all cpus.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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