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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>
This commit is contained in:
Jiri Olsa 2016-05-19 10:10:51 +02:00 committed by Arnaldo Carvalho de Melo
parent 4d08910c94
commit 04402d205a
1 changed files with 47 additions and 0 deletions
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47
tools/perf/builtin-c2c.c
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@ -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,
};