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| author | Jiri Olsa <jolsa@kernel.org> | 2016-05-19 11:10:51 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-19 19:18:31 +0300 |
| commit | 04402d205a40d38d1ebf4b48fb369bba39d4e05b (patch) | |
| tree | 91a51a8a948ac5152efbcd844d7d7c145b4325e9 /tools/perf | |
| parent | 4d08910c94c5b460c1e0623b47ec2abc0ab0d1a6 (diff) | |
| download | linux-04402d205a40d38d1ebf4b48fb369bba39d4e05b.tar.xz | |
perf c2c report: Add llc load miss dimension key
It is to be displayed in the main cachelines overall output:
ld_llcmiss
It displays bare number of LLC misses for 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-wojujik7zzen770mxn295mxa@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-c2c.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 6b601836b031..f525384dbbad 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -421,6 +421,44 @@ STAT_FN(ld_l2hit) STAT_FN(ld_llchit) STAT_FN(rmt_hit) +static uint64_t llc_miss(struct c2c_stats *stats) +{ + uint64_t llcmiss; + + llcmiss = stats->lcl_dram + + stats->rmt_dram + + stats->rmt_hitm + + stats->rmt_hit; + + return llcmiss; +} + +static int +ld_llcmiss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct hist_entry *he) +{ + struct c2c_hist_entry *c2c_he; + int width = c2c_width(fmt, hpp, he->hists); + + c2c_he = container_of(he, struct c2c_hist_entry, he); + + return scnprintf(hpp->buf, hpp->size, "%*lu", width, + llc_miss(&c2c_he->stats)); +} + +static int64_t +ld_llcmiss_cmp(struct perf_hpp_fmt *fmt __maybe_unused, + struct hist_entry *left, struct hist_entry *right) +{ + struct c2c_hist_entry *c2c_left; + struct c2c_hist_entry *c2c_right; + + c2c_left = container_of(left, struct c2c_hist_entry, he); + c2c_right = container_of(right, struct c2c_hist_entry, he); + + return llc_miss(&c2c_left->stats) - llc_miss(&c2c_right->stats); +} + #define HEADER_LOW(__h) \ { \ .line[1] = { \ @@ -600,6 +638,14 @@ static struct c2c_dimension dim_ld_rmthit = { .width = 8, }; +static struct c2c_dimension dim_ld_llcmiss = { + .header = HEADER_BOTH("LLC", "Ld Miss"), + .name = "ld_llcmiss", + .cmp = ld_llcmiss_cmp, + .entry = ld_llcmiss_entry, + .width = 7, +}; + static struct c2c_dimension *dimensions[] = { &dim_dcacheline, &dim_offset, @@ -619,6 +665,7 @@ static struct c2c_dimension *dimensions[] = { &dim_ld_l2hit, &dim_ld_llchit, &dim_ld_rmthit, + &dim_ld_llcmiss, NULL, }; |