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author | Andi Kleen <ak@linux.intel.com> | 2019-03-14 15:49:59 -0700 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-03-19 16:52:03 -0300 |
commit | a4e7e6efabc57e85e0737c2eaa391525c0ae36f3 (patch) | |
tree | 0e5e39196b807d8e32c27ea1162dba534a3cbf96 /tools | |
parent | 702fb9b415e7c99bd671fc0d1da26574c125471a (diff) | |
download | linux-a4e7e6efabc57e85e0737c2eaa391525c0ae36f3.tar.gz linux-a4e7e6efabc57e85e0737c2eaa391525c0ae36f3.tar.bz2 linux-a4e7e6efabc57e85e0737c2eaa391525c0ae36f3.zip |
perf report: Indicate JITed code better in report
Print [TID] tid %d instead of the crypted /tmp/perf-%d.map default.
% cat >loop.java
public class loop {
public static void main(String[] args)
{
for (;;);
}
}
^D
% javac loop.java
% perf record java loop
^C
Before:
% perf report --stdio
...
56.09% java perf-34724.map [.] 0x00007fd5bd021896
19.12% java perf-34724.map [.] 0x00007fd5bd021887
9.79% java perf-34724.map [.] 0x00007fd5bd021783
8.97% java perf-34724.map [.] 0x00007fd5bd02175b
After:
% perf report --stdio
...
56.09% java [JIT] tid 34724 [.] 0x00007fd5bd021896
19.12% java [JIT] tid 34724 [.] 0x00007fd5bd021887
9.79% java [JIT] tid 34724 [.] 0x00007fd5bd021783
8.97% java [JIT] tid 34724 [.] 0x00007fd5bd02175b
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LPU-Reference: 20190314225002.30108-7-andi@firstfloor.org
Link: https://lkml.kernel.org/n/tip-r17l6py9g0sezb7mi1f286gt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/util/dso.c | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index ba58ba603b69..ab8a455d2283 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -1141,28 +1141,34 @@ void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated) static void dso__set_basename(struct dso *dso) { - /* - * basename() may modify path buffer, so we must pass - * a copy. - */ - char *base, *lname = strdup(dso->long_name); + char *base, *lname; + int tid; - if (!lname) - return; - - /* - * basename() may return a pointer to internal - * storage which is reused in subsequent calls - * so copy the result. - */ - base = strdup(basename(lname)); + if (sscanf(dso->long_name, "/tmp/perf-%d.map", &tid) == 1) { + if (asprintf(&base, "[JIT] tid %d", tid) < 0) + return; + } else { + /* + * basename() may modify path buffer, so we must pass + * a copy. + */ + lname = strdup(dso->long_name); + if (!lname) + return; - free(lname); + /* + * basename() may return a pointer to internal + * storage which is reused in subsequent calls + * so copy the result. + */ + base = strdup(basename(lname)); - if (!base) - return; + free(lname); - dso__set_short_name(dso, base, true); + if (!base) + return; + } + dso__set_short_name(dso, base, true); } int dso__name_len(const struct dso *dso) |