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authorDavidlohr Bueso <[email protected]>2018-12-06 19:18:17 +0000
committerArnaldo Carvalho de Melo <[email protected]>2019-01-25 14:12:10 +0000
commit7137ff50b68a48bc28270c91b1c313259ab0c1c4 (patch)
tree9af6b7fc0ae471e61d9a9d177f1f12d33e790d2b /tools/perf/builtin-annotate.c
parentperf util: Use cached rbtree for rblists (diff)
downloadkernel-7137ff50b68a48bc28270c91b1c313259ab0c1c4.tar.gz
kernel-7137ff50b68a48bc28270c91b1c313259ab0c1c4.zip
perf symbols: Use cached rbtrees
At the cost of an extra pointer, we can avoid the O(logN) cost of finding the first element in the tree (smallest node). Signed-off-by: Davidlohr Bueso <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/builtin-annotate.c')
-rw-r--r--tools/perf/builtin-annotate.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 93d679eaf1f4..cc3da5564300 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -227,7 +227,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
* the DSO?
*/
if (al->sym != NULL) {
- rb_erase(&al->sym->rb_node,
+ rb_erase_cached(&al->sym->rb_node,
&al->map->dso->symbols);
symbol__delete(al->sym);
dso__reset_find_symbol_cache(al->map->dso);