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| author | Jiri Olsa <jolsa@kernel.org> | 2016-06-23 23:05:52 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-19 13:18:31 -0300 |
| commit | b6fe2bbc346ea6a838832d319e5fe7332fc75f3d (patch) | |
| tree | a7abd7978ba71cec40c3768cf831ce035d548a1f /tools/perf/builtin-c2c.c | |
| parent | 92062d543f1fb83b9b03ecafdb92f00e1328a992 (diff) | |
| download | lwn-b6fe2bbc346ea6a838832d319e5fe7332fc75f3d.tar.gz lwn-b6fe2bbc346ea6a838832d319e5fe7332fc75f3d.zip | |
perf c2c report: Add 'cpucnt' sort key
It is to be displayed in the single cacheline output:
cpucnt
It displays number of distinct cpus that hit cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ib2kdwam52fby9u2k3ij6lhm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-c2c.c')
| -rw-r--r-- | tools/perf/builtin-c2c.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 043344a720bf..2a1e883580a1 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -1015,6 +1015,20 @@ MEAN_ENTRY(mean_rmt_entry, rmt_hitm); MEAN_ENTRY(mean_lcl_entry, lcl_hitm); MEAN_ENTRY(mean_load_entry, load); +static int +cpucnt_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp, + struct hist_entry *he) +{ + struct c2c_hist_entry *c2c_he; + int width = c2c_width(fmt, hpp, he->hists); + char buf[10]; + + c2c_he = container_of(he, struct c2c_hist_entry, he); + + scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt)); + return scnprintf(hpp->buf, hpp->size, "%*s", width, buf); +} + #define HEADER_LOW(__h) \ { \ .line[1] = { \ @@ -1341,6 +1355,14 @@ static struct c2c_dimension dim_mean_load = { .width = 8, }; +static struct c2c_dimension dim_cpucnt = { + .header = HEADER_BOTH("cpu", "cnt"), + .name = "cpucnt", + .cmp = empty_cmp, + .entry = cpucnt_entry, + .width = 8, +}; + static struct c2c_dimension *dimensions[] = { &dim_dcacheline, &dim_offset, @@ -1378,6 +1400,7 @@ static struct c2c_dimension *dimensions[] = { &dim_mean_rmt, &dim_mean_lcl, &dim_mean_load, + &dim_cpucnt, NULL, }; |