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-rw-r--r--tools/perf/Documentation/perf-top.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index d864ea6fd367..4353262bc462 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -240,6 +240,9 @@ Default is to monitor all CPUS.
--force::
Don't do ownership validation.
+--num-thread-synthesize::
+ The number of threads to run when synthesizing events for existing processes.
+ By default, the number of threads equals to the number of online CPUs.
INTERACTIVE PROMPTING KEYS
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