perf timechart: Get number of CPUs from perf header
Print all CPUs, even if there were no events (use perf header to get number of CPUs). This is required to support topology in the next patch. Signed-off-by: NStanislav Fomichev <stfomichev@yandex-team.ru> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ramkumar Ramachandra <artagnon@gmail.com> Link: http://lkml.kernel.org/r/1385995056-20158-4-git-send-email-stfomichev@yandex-team.ruSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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