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perf c2c: Add dimensions for 'N/A' metrics of store operation
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Since now we have the statistics 'st_na' for store operations, add
dimensions for the 'N/A' (no available memory level) metrics and the
associated percentage calculation for the single cache line view.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adam Li <adamli@amperemail.onmicrosoft.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Alyssa Ross <hi@alyssa.is>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220518055729.1869566-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Leo Yan authored and Arnaldo Carvalho de Melo committed May 23, 2022
1 parent 9845063 commit 550b4d6
Showing 1 changed file with 73 additions and 7 deletions.
80 changes: 73 additions & 7 deletions tools/perf/builtin-c2c.c
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Original file line number Diff line number Diff line change
Expand Up @@ -653,6 +653,7 @@ STAT_FN(lcl_hitm)
STAT_FN(store)
STAT_FN(st_l1hit)
STAT_FN(st_l1miss)
STAT_FN(st_na)
STAT_FN(ld_fbhit)
STAT_FN(ld_l1hit)
STAT_FN(ld_l2hit)
Expand All @@ -677,7 +678,8 @@ static uint64_t total_records(struct c2c_stats *stats)

total = ldcnt +
stats->st_l1hit +
stats->st_l1miss;
stats->st_l1miss +
stats->st_na;

return total;
}
Expand Down Expand Up @@ -899,6 +901,7 @@ PERCENT_FN(rmt_hitm)
PERCENT_FN(lcl_hitm)
PERCENT_FN(st_l1hit)
PERCENT_FN(st_l1miss)
PERCENT_FN(st_na)

static int
percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
Expand Down Expand Up @@ -1024,6 +1027,37 @@ percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return per_left - per_right;
}

static int
percent_stores_na_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he)
{
int width = c2c_width(fmt, hpp, he->hists);
double per = PERCENT(he, st_na);
char buf[10];

return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
}

static int
percent_stores_na_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he)
{
return percent_color(fmt, hpp, he, percent_st_na);
}

static int64_t
percent_stores_na_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
struct hist_entry *left, struct hist_entry *right)
{
double per_left;
double per_right;

per_left = PERCENT(left, st_na);
per_right = PERCENT(right, st_na);

return per_left - per_right;
}

STAT_FN(lcl_dram)
STAT_FN(rmt_dram)

Expand Down Expand Up @@ -1351,7 +1385,7 @@ static struct c2c_dimension dim_tot_stores = {
};

static struct c2c_dimension dim_stores_l1hit = {
.header = HEADER_SPAN("---- Stores ----", "L1Hit", 1),
.header = HEADER_SPAN("--------- Stores --------", "L1Hit", 2),
.name = "stores_l1hit",
.cmp = st_l1hit_cmp,
.entry = st_l1hit_entry,
Expand All @@ -1366,8 +1400,16 @@ static struct c2c_dimension dim_stores_l1miss = {
.width = 7,
};

static struct c2c_dimension dim_stores_na = {
.header = HEADER_SPAN_LOW("N/A"),
.name = "stores_na",
.cmp = st_na_cmp,
.entry = st_na_entry,
.width = 7,
};

static struct c2c_dimension dim_cl_stores_l1hit = {
.header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
.header = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
.name = "cl_stores_l1hit",
.cmp = st_l1hit_cmp,
.entry = st_l1hit_entry,
Expand All @@ -1382,6 +1424,14 @@ static struct c2c_dimension dim_cl_stores_l1miss = {
.width = 7,
};

static struct c2c_dimension dim_cl_stores_na = {
.header = HEADER_SPAN_LOW("N/A"),
.name = "cl_stores_na",
.cmp = st_na_cmp,
.entry = st_na_entry,
.width = 7,
};

static struct c2c_dimension dim_ld_fbhit = {
.header = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
.name = "ld_fbhit",
Expand Down Expand Up @@ -1471,7 +1521,7 @@ static struct c2c_dimension dim_percent_lcl_hitm = {
};

static struct c2c_dimension dim_percent_stores_l1hit = {
.header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
.header = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
.name = "percent_stores_l1hit",
.cmp = percent_stores_l1hit_cmp,
.entry = percent_stores_l1hit_entry,
Expand All @@ -1488,6 +1538,15 @@ static struct c2c_dimension dim_percent_stores_l1miss = {
.width = 7,
};

static struct c2c_dimension dim_percent_stores_na = {
.header = HEADER_SPAN_LOW("N/A"),
.name = "percent_stores_na",
.cmp = percent_stores_na_cmp,
.entry = percent_stores_na_entry,
.color = percent_stores_na_color,
.width = 7,
};

static struct c2c_dimension dim_dram_lcl = {
.header = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
.name = "dram_lcl",
Expand Down Expand Up @@ -1618,8 +1677,10 @@ static struct c2c_dimension *dimensions[] = {
&dim_tot_stores,
&dim_stores_l1hit,
&dim_stores_l1miss,
&dim_stores_na,
&dim_cl_stores_l1hit,
&dim_cl_stores_l1miss,
&dim_cl_stores_na,
&dim_ld_fbhit,
&dim_ld_l1hit,
&dim_ld_l2hit,
Expand All @@ -1632,6 +1693,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_percent_lcl_hitm,
&dim_percent_stores_l1hit,
&dim_percent_stores_l1miss,
&dim_percent_stores_na,
&dim_dram_lcl,
&dim_dram_rmt,
&dim_pid,
Expand Down Expand Up @@ -2149,6 +2211,7 @@ static void print_c2c__display_stats(FILE *out)
fprintf(out, " Store - no mapping : %10d\n", stats->st_noadrs);
fprintf(out, " Store L1D Hit : %10d\n", stats->st_l1hit);
fprintf(out, " Store L1D Miss : %10d\n", stats->st_l1miss);
fprintf(out, " Store No available memory level : %10d\n", stats->st_na);
fprintf(out, " No Page Map Rejects : %10d\n", stats->nomap);
fprintf(out, " Unable to parse data source : %10d\n", stats->noparse);
}
Expand All @@ -2171,6 +2234,7 @@ static void print_shared_cacheline_info(FILE *out)
fprintf(out, " Blocked Access on shared lines : %10d\n", stats->blk_data + stats->blk_addr);
fprintf(out, " Store HITs on shared lines : %10d\n", stats->store);
fprintf(out, " Store L1D hits on shared lines : %10d\n", stats->st_l1hit);
fprintf(out, " Store No available memory level : %10d\n", stats->st_na);
fprintf(out, " Total Merged records : %10d\n", hitm_cnt + stats->store);
}

Expand All @@ -2193,10 +2257,10 @@ static void print_cacheline(struct c2c_hists *c2c_hists,
fprintf(out, "\n");
}

fprintf(out, " -------------------------------------------------------------\n");
fprintf(out, " ----------------------------------------------------------------------\n");
__hist_entry__snprintf(he_cl, &hpp, hpp_list);
fprintf(out, "%s\n", bf);
fprintf(out, " -------------------------------------------------------------\n");
fprintf(out, " ----------------------------------------------------------------------\n");

hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false);
}
Expand All @@ -2213,6 +2277,7 @@ static void print_pareto(FILE *out)
"cl_lcl_hitm,"
"cl_stores_l1hit,"
"cl_stores_l1miss,"
"cl_stores_na,"
"dcacheline";

perf_hpp_list__init(&hpp_list);
Expand Down Expand Up @@ -2664,6 +2729,7 @@ static int build_cl_output(char *cl_sort, bool no_source)
"percent_lcl_hitm,"
"percent_stores_l1hit,"
"percent_stores_l1miss,"
"percent_stores_na,"
"offset,offset_node,dcacheline_count,",
add_pid ? "pid," : "",
add_tid ? "tid," : "",
Expand Down Expand Up @@ -2850,7 +2916,7 @@ static int perf_c2c__report(int argc, const char **argv)
"tot_recs,"
"tot_loads,"
"tot_stores,"
"stores_l1hit,stores_l1miss,"
"stores_l1hit,stores_l1miss,stores_na,"
"ld_fbhit,ld_l1hit,ld_l2hit,"
"ld_lclhit,lcl_hitm,"
"ld_rmthit,rmt_hitm,"
Expand Down

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