perf script: Allow time to be displayed in nanoseconds

[mirror_ubuntu-bionic-kernel.git] / tools / perf / Documentation / perf-script.txt

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index dc3ec783b7bd50973da5eecb0a5ba728a1a72361..b3b42f9285dfb76ad82d0088901d235ad8b29bba 100644 (file)
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -249,6 +249,9 @@ include::itrace.txt[]
 --full-source-path::
        Show the full path for source files for srcline output.
 
+--ns::
+       Use 9 decimal places when displaying time (i.e. show the nanoseconds)
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script-perl[1],