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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-03 12:37:36 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-03 14:14:31 +0200
commit8229289b607682f90b946ad2c319526303c17700 (patch)
tree0fafa2c4e66052e4b94fb3b3e23507d6962800a4 /kernel/perf_counter.c
parente61078a0c88773d3465b0b9d665c5ed6b952b1cf (diff)
perf report: Fix comm sorting
Since we can (and do) change comm strings during the collection phase, we cannot actually sort on them to build the histogram. Therefore add an (optional) third sorting phase to collapse the histrogram. Comm sorting now builds the histrogram on threads and then in the collapse phase collects all threads with the same comm. This collapsed histogram is then reversed and sorted on events. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Kacur <jkacur@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_counter.c')
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