diff options
| author | Andi Kleen <ak@linux.intel.com> | 2015-07-18 18:24:46 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-06 22:29:45 +0300 |
| commit | 0e332f033a8216fa03792fde69882f66500848c7 (patch) | |
| tree | b88becef22fec7eb369b5dec4ba58e57985fd4b5 /tools/perf/util/session.c | |
| parent | 93df8a1ed6231727c5db94a80b1a6bd5ee67cec3 (diff) | |
| download | linux-0e332f033a8216fa03792fde69882f66500848c7.tar.xz | |
perf tools: Add support for cycles, weight branch_info field
cycles is a new branch_info field available on some CPUs that indicates
the time deltas between branches in the LBR.
Add a sort key and output code for the cycles to allow to display the
basic block cycles individually in perf report.
We also pass in the cycles for weight when LBRs are processed, which
allows to get global and local weight, to get an estimate of the total
cost.
And also print the cycles information for perf report -D. I also added
printing for the previously missing LBR flags (mispredict etc.)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1437233094-12844-2-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index f51eb54aeeb3..18722e774a69 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -784,10 +784,18 @@ static void branch_stack__printf(struct perf_sample *sample) printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); - for (i = 0; i < sample->branch_stack->nr; i++) - printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", - i, sample->branch_stack->entries[i].from, - sample->branch_stack->entries[i].to); + for (i = 0; i < sample->branch_stack->nr; i++) { + struct branch_entry *e = &sample->branch_stack->entries[i]; + + printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n", + i, e->from, e->to, + e->flags.cycles, + e->flags.mispred ? "M" : " ", + e->flags.predicted ? "P" : " ", + e->flags.abort ? "A" : " ", + e->flags.in_tx ? "T" : " ", + (unsigned)e->flags.reserved); + } } static void regs_dump__printf(u64 mask, u64 *regs) |