Messages in this thread | | | Date | Wed, 19 Mar 2014 11:19:08 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH 06/13] perf tools: Use tid in mmap/mmap2 events to find maps |
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On Wed, Mar 19, 2014 at 09:13:38AM +0200, Adrian Hunter wrote: > On 18.03.2014 23:25, Arnaldo Carvalho de Melo wrote: > > From: Don Zickus <dzickus@redhat.com> > > > > Now that we can properly synthesize threads system-wide, make sure the > > mmap and mmap2 events use tids instead of pids to locate their maps. > > This is a good change but it cannot go yet because it is dependent on Jiri's > "perf tools: Share map groups within process" series. > > perf tools assume that threads share virtual memory. That means that a > mapping created by one thread is visible to all threads in the thread group. > That was implemented by putting all the maps on the thread group leader > (pid == tid). The alternative is to share the map groups instead, which is > what Jiri is doing.
right, this needs the sharing map groups changes (or the 1/2 patch Don sent prior to this patch)
jirka
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