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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2016-07-01 17:03:12 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-07-01 11:34:57 -0300 |
| commit | bc0622302f344551050995491b7d14176f39c628 (patch) | |
| tree | aca2555b791c87c7615bcc15711af7a283fb554d /tools/perf/util/probe-file.c | |
| parent | dc29bb47a34130459fadd58f05e2acd051a6327d (diff) | |
| download | op-kernel-dev-bc0622302f344551050995491b7d14176f39c628.zip op-kernel-dev-bc0622302f344551050995491b7d14176f39c628.tar.gz | |
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 <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736019226.27797.16366402884098398857.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-file.c')
| -rw-r--r-- | tools/perf/util/probe-file.c | 20 |
1 files changed, 19 insertions, 1 deletions
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) |
