Commit 4a03af3e authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf stat: Elaborate use cases for the -n/--null command line option 

The existing text was way too terse, pick the intended usage from the
cset that introduced this option.

Twitter: https://twitter.com/_monoid/status/1371461130175004672?s=20


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 5497b23e

tools/perf/Documentation/perf-stat.txt

+4 −1
Original line number Diff line number Diff line
@@ -142,7 +142,10 @@ Do not aggregate counts across all monitored CPUs. 


-n::

--null::

        null run - don't start any counters

null run - Don't start any counters.



This can be useful to measure just elapsed wall-clock time - or to assess the

raw overhead of perf stat itself, without running any counters.



-v::

--verbose::