Messages in this thread | | | Date | Fri, 26 Jun 2015 16:47:39 +0300 | From | Adrian Hunter <> | Subject | Re: [PATCH V6 08/17] perf tools: Add Intel PT support |
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On 26/06/15 16:41, Arnaldo Carvalho de Melo wrote: >> Another thing, the intel_bts implementation does not support >> "instructions" samples because there is no timing information to >> use to create periodic samples. But callchains are added only >> to "instructions" samples so there are no callchains in 'perf report' >> for intel_bts. The call information is still available for > > Humm, so IOW, what you say is that we should refuse to run 'record' when > asking for callchains and intel_bts?
'record' can record other events at the same time which can have callchains. e.g.
perf record -g --per-thread -e intel_bts//u,branch-misses:u ls
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