From bc0622302f344551050995491b7d14176f39c628 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 1 Jul 2016 17:03:12 +0900 Subject: perf probe: Use cache entry if possible Before analyzing debuginfo, try to find a corresponding entry from probe cache always. This does not depend on --cache, the --cache enables to store/update cache, but looking up the cache is always enabled. Signed-off-by: Masami Hiramatsu Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Brendan Gregg Cc: Hemant Kumar Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/146736019226.27797.16366402884098398857.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/probe-file.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/probe-file.c') diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c index 1c12c1a..a94ee47 100644 --- a/tools/perf/util/probe-file.c +++ b/tools/perf/util/probe-file.c @@ -524,7 +524,7 @@ static bool streql(const char *a, const char *b) return !strcmp(a, b); } -static struct probe_cache_entry * +struct probe_cache_entry * probe_cache__find(struct probe_cache *pcache, struct perf_probe_event *pev) { struct probe_cache_entry *entry = NULL; @@ -548,6 +548,24 @@ found: return entry; } +struct probe_cache_entry * +probe_cache__find_by_name(struct probe_cache *pcache, + const char *group, const char *event) +{ + struct probe_cache_entry *entry = NULL; + + list_for_each_entry(entry, &pcache->entries, node) { + /* Hit if same event name or same command-string */ + if (streql(entry->pev.group, group) && + streql(entry->pev.event, event)) + goto found; + } + entry = NULL; + +found: + return entry; +} + int probe_cache__add_entry(struct probe_cache *pcache, struct perf_probe_event *pev, struct probe_trace_event *tevs, int ntevs) -- cgit v1.1