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-rw-r--r--tools/perf/Documentation/perf.txt10
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf.txt b/tools/perf/Documentation/perf.txt
index 0eeb247dc7d2..d240bb2e5b22 100644
--- a/tools/perf/Documentation/perf.txt
+++ b/tools/perf/Documentation/perf.txt
@@ -8,7 +8,15 @@ perf - Performance analysis tools for Linux
SYNOPSIS
--------
[verse]
-'perf' [--version] [--help] COMMAND [ARGS]
+'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]
+
+OPTIONS
+-------
+--debug::
+ Setup debug variable (just verbose for now) in value
+ range (0, 10). Use like:
+ --debug verbose # sets verbose = 1
+ --debug verbose=2 # sets verbose = 2
DESCRIPTION
-----------
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