Adding cpu count dimension key wrapper. It is to be displayed in the single cacheline output:
cpucnt It displays number of distinct cpus that hit cacheline. Link: http://lkml.kernel.org/n/tip-ib2kdwam52fby9u2k3ij6...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/builtin-c2c.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 1990c64f18ff..a4fea832e677 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); + + snprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt)); + return snprintf(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, +}; + #undef HEADER_LOW #undef HEADER_BOTH #undef HEADER_SPAN @@ -1383,6 +1405,7 @@ static struct c2c_dimension *dimensions[] = { &dim_mean_rmt, &dim_mean_lcl, &dim_mean_load, + &dim_cpucnt, NULL, }; -- 2.7.4
