Commit-ID: 5e47f8ff406296bd078716d71283796ca5c6544b Gitweb: http://git.kernel.org/tip/5e47f8ff406296bd078716d71283796ca5c6544b Author: Namhyung Kim <namhy...@kernel.org> AuthorDate: Mon, 9 Nov 2015 14:45:40 +0900 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 19 Nov 2015 13:19:23 -0300
perf callchain: Add count fields to struct callchain_node It's to track the count of occurrences of the callchains. Signed-off-by: Namhyung Kim <namhy...@kernel.org> Acked-by: Brendan Gregg <brendan.d.gr...@gmail.com> Acked-by: Jiri Olsa <jo...@kernel.org> Cc: Andi Kleen <a...@firstfloor.org> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Kan Liang <kan.li...@intel.com> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/1447047946-1691-5-git-send-email-namhy...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/callchain.c | 10 ++++++++++ tools/perf/util/callchain.h | 7 +++++++ 2 files changed, 17 insertions(+) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index b948bd0..e390edd 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -437,6 +437,8 @@ add_child(struct callchain_node *parent, new->children_hit = 0; new->hit = period; + new->children_count = 0; + new->count = 1; return new; } @@ -484,6 +486,9 @@ split_add_child(struct callchain_node *parent, parent->children_hit = callchain_cumul_hits(new); new->val_nr = parent->val_nr - idx_local; parent->val_nr = idx_local; + new->count = parent->count; + new->children_count = parent->children_count; + parent->children_count = callchain_cumul_counts(new); /* create a new child for the new branch if any */ if (idx_total < cursor->nr) { @@ -494,6 +499,8 @@ split_add_child(struct callchain_node *parent, parent->hit = 0; parent->children_hit += period; + parent->count = 0; + parent->children_count += 1; node = callchain_cursor_current(cursor); new = add_child(parent, cursor, period); @@ -516,6 +523,7 @@ split_add_child(struct callchain_node *parent, rb_insert_color(&new->rb_node_in, &parent->rb_root_in); } else { parent->hit = period; + parent->count = 1; } } @@ -562,6 +570,7 @@ append_chain_children(struct callchain_node *root, inc_children_hit: root->children_hit += period; + root->children_count++; } static int @@ -614,6 +623,7 @@ append_chain(struct callchain_node *root, /* we match 100% of the path, increment the hit */ if (matches == root->val_nr && cursor->pos == cursor->nr) { root->hit += period; + root->count++; return 0; } diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index 060e636..cdb386d 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -60,6 +60,8 @@ struct callchain_node { struct rb_root rb_root_in; /* input tree of children */ struct rb_root rb_root; /* sorted output tree of children */ unsigned int val_nr; + unsigned int count; + unsigned int children_count; u64 hit; u64 children_hit; }; @@ -145,6 +147,11 @@ static inline u64 callchain_cumul_hits(struct callchain_node *node) return node->hit + node->children_hit; } +static inline unsigned callchain_cumul_counts(struct callchain_node *node) +{ + return node->count + node->children_count; +} + int callchain_register_param(struct callchain_param *param); int callchain_append(struct callchain_root *root, struct callchain_cursor *cursor, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
