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authorNamhyung Kim <namhyung.kim@lge.com>2013-11-08 17:53:42 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-11-11 15:56:40 -0300
commit7524f63b997cc02a80aa073558728ae3ee242cf8 (patch)
tree1a6d4ed801a225ff88ade9b29a6846cedce54683 /tools/perf
parenta33fbd56ec83b5421090b4d8f2032f635e6a9488 (diff)
downloadop-kernel-dev-7524f63b997cc02a80aa073558728ae3ee242cf8.zip
op-kernel-dev-7524f63b997cc02a80aa073558728ae3ee242cf8.tar.gz
perf tools: Prevent condition that all sort keys are elided
If given sort keys are all elided there'll be no output except for the overhead column - actually the TUI shows a noisy output. In this case it'd be better to show up the sort keys rather than elide. Before: $ perf report -s comm -c perf (...) # Overhead # ........ # 100.00% After: $ perf report -s comm -c perf (...) # Overhead Command # ........ ....... # 100.00% perf Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383900822-14609-1-git-send-email-namhyung@kernel.org [ Us curly braces around multi-line statements, as requested by Ingo Molnar ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/sort.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 3c1b75c..8b0bb1f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1137,6 +1137,8 @@ static void sort_entry__setup_elide(struct sort_entry *se,
void sort__setup_elide(FILE *output)
{
+ struct sort_entry *se;
+
sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
"dso", output);
sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list,
@@ -1172,4 +1174,15 @@ void sort__setup_elide(FILE *output)
"snoop", output);
}
+ /*
+ * It makes no sense to elide all of sort entries.
+ * Just revert them to show up again.
+ */
+ list_for_each_entry(se, &hist_entry__sort_list, list) {
+ if (!se->elide)
+ return;
+ }
+
+ list_for_each_entry(se, &hist_entry__sort_list, list)
+ se->elide = false;
}
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