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perf tools: Defer export of comms that were not 'set'

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Tracing for a workload begins before the comm event is seen, which
results in the initial comm having a string of the form ":<pid>" (e.g.
":12345").

In order to export the correct string, defer the export until the new
script 'flush' callback.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1414678188-14946-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2014-10-30 16:09:48 +02:00 • committed by Arnaldo Carvalho de Melo
parent 6a70307ddc
commit 758008b262
3 changed files with 67 additions and 2 deletions
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4
tools/perf/util/scripting-engines/trace-event-python.c
View file

@ -1030,7 +1030,9 @@ error:
static int python_flush_script(void)
{
return 0;
struct tables *tables = &tables_global;
return db_export__flush(&tables->dbe);
}
/*