perf intel-pt: Synthesize CBR events when last seen value changes

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The first core-to-bus ratio (CBR) event will not be shown if --itrace
's' option (skip initial number of events) is used, nor if time
intervals are specified that do not include the start of tracing. Change
the logic to record the last CBR value seen by the user, and synthesize
CBR events whenever that changes.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190622093248.581-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Adrian Hunter 2019-06-22 12:32:45 +03:00 • committed by Arnaldo Carvalho de Melo

parent 51b0918618

commit 5fe2cf7d19

1 changed files with 41 additions and 24 deletions

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tools/perf/util/intel-pt.c

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