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| author |   Andi Kleen <ak@linux.intel.com> | 2020-05-21 19:09:14 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-05-28 10:03:28 -0300 |
| commit | 8c3e05c827ef687215723680862ebd2d431dee49 (patch) | |
| tree | 0335afd20648ba3b393a4813a2d8ac1fa7da80da /tools/perf/builtin-list.c | |
| parent | perf metricgroup: Remove unnecessary ',' from events (diff) | |
| download | linux-dev-8c3e05c827ef687215723680862ebd2d431dee49.tar.xz linux-dev-8c3e05c827ef687215723680862ebd2d431dee49.zip | |
perf script: Don't force less for non tty output with --xed
--xed currently forces less. When piping the output to other scripts
this can waste a lot of CPU time because less is rather slow.
I've seen it using up a full core on its own in a pipeline.
Only force less when the output is actually a terminal.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20200522020914.527564-1-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-list.c')
0 files changed, 0 insertions, 0 deletions