On 5/9/15 9:19 AM, Namhyung Kim wrote:
diff --git a/tools/perf/Documentation/perf-report.txt 
b/tools/perf/Documentation/perf-report.txt
index 896672badba3..610e1e2cd035 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -34,7 +34,8 @@ OPTIONS

  -T::
  --threads::
-       Show per-thread event counters
+       Show per-thread event counters.  The input data file should be recorded
+       with -s option.
  -c::
  --comms=::
        Only consider symbols in these comms. CSV that understands


perf-report can verify that inherit_stat is set in attr's if show_threads is requested.

David
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