Messages in this thread | | | Date | Wed, 22 Aug 2012 10:56:13 -0600 | From | David Ahern <> | Subject | Re: [PATCH] perf: do not flush maps on COMM for perf report |
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On 8/22/12 10:29 AM, Arnaldo Carvalho de Melo wrote: > Adding the EXEC event, ditto. And I agree that while adding it we want > to do 1/2 as pre-requisite.
maps should not be flushed on a COMM event, so that was a mistake. Given that what new information does an EXEC event provide? Same process id. A COMM event is generated on an exec, so the name change happens. Mappings are dropped prior to that - and there is no unmap event. That seems to be a missing piece. Maps are added which is handled by MMAP events. After that why is an exec event relevant?
David
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