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-rw-r--r--tools/perf/Documentation/perf-stat.txt11
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 08394c4879a8..8966b9ab2014 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -95,12 +95,21 @@ corresponding events, i.e., they always refer to events defined earlier on the c
line.
-o file::
--output file::
+--output file::
Print the output into the designated file.
--append::
Append to the output file designated with the -o option. Ignored if -o is not specified.
+--log-fd::
+
+Log output to fd, instead of stderr. Complementary to --output, and mutually exclusive
+with it. --append may be used here. Examples:
+ 3>results perf stat --log-fd 3 -- $cmd
+ 3>>results perf stat --log-fd 3 --append -- $cmd
+
+
+
EXAMPLES
--------