Messages in this thread | | | Date | Fri, 20 Nov 2009 16:53:32 +0800 | From | Li Zefan <> | Subject | Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool |
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Pekka Enberg wrote: > Ingo Molnar kirjoitti: >> Regarding patch 2 - can we set some definitive benchmark threshold for >> that? I.e. a list of must-have features in 'perf kmem' before we can >> do it? 100% information and analysis equivalency with kmemtrace-user >> tool? > > I'd be interested to hear Eduard's comment on that. > > That said, I'll try to find some time to test "perf kmem" and provide > feedback on that. I can ACK the patch when I'm happy with the output. :-) > > I'm mostly interested in two scenarios: (1) getting a nice report on > worst fragmented call-sites (perf kmem needs symbol lookup) and
This will be done in next version.
> (2) doing "perf kmem record" on machine A (think embedded here) and then > "perf kmem report" on machine B. I haven't tried kmemtrace-user for a > while but it did support both of them quite nicely at some point. >
Everything needed and machine-specific will be recorded in perf.data, so this should already been supported. I'll try it.
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