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authorDavidlohr Bueso <dave@stgolabs.net>2018-12-06 11:18:15 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-01-25 15:12:09 +0100
commit55ecd6310f9fe48cf7e435be408862da1e0e6baa (patch)
treef4f4d1c79b4404d488f1e2a1c22660862a1561cc /tools/perf/util/dso.h
parentf3acb3a8a2081344801974ac5ec8e1b0d6f0ef36 (diff)
perf callchain: 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), which is something required for nearly every in/srcline callchain node deletion (in/srcline__tree_delete()). Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181206191819.30182-4-dave@stgolabs.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/dso.h')
-rw-r--r--tools/perf/util/dso.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 2de54c0b26b2..40edfb375a8b 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -143,8 +143,8 @@ struct dso {
struct rb_root *root; /* root of rbtree that rb_node is in */
struct rb_root symbols;
struct rb_root symbol_names;
- struct rb_root inlined_nodes;
- struct rb_root srclines;
+ struct rb_root_cached inlined_nodes;
+ struct rb_root_cached srclines;
struct {
u64 addr;
struct symbol *symbol;