* Re: [PATCH v2] perf stat: Fix the ratio comments of miss-events
[not found] ` <bac9f132-63c4-df6c-6959-32bc63ac3cdd@huawei.com>
@ 2020-05-06 12:24 ` Qi Liu
0 siblings, 0 replies; 2+ messages in thread
From: Qi Liu @ 2020-05-06 12:24 UTC (permalink / raw)
To: acme, mingo, Peter Zijlstra, Andi Kleen
Cc: linux-kernel, linux-perf-users, Linuxarm
Gentle ping ...
Hi Arnaldo,
If possible, could you give a look for this patch?
Thank you,
Qi Liu
On 2020/5/6 20:01, Qi Liu wrote:
> Perf stat displays miss ratio of L1-dcache, L1-icache, dTLB cache, iTLB cache and LL-cache. Take L1-dcache for example, its miss ratio is caculated as "L1-dcache-load-misses/L1-dcache-loads". So "of all L1-dcache hits" is unsuitable to describe it, and "of all L1-dcache accesses" seems better. The comments of L1-icache, dTLB cache, iTLB cache and LL-cache are fixed in the same way.
>
> Signed-off-by: Qi Liu <liuqi115@huawei.com>
> Reviewed-by: Andi Kleen <ak@linux.intel.com>
> ---
> Changelog
> v2: Fix the format issue
>
> tools/perf/util/stat-shadow.c | 20 ++++++++++----------
> 1 file changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 2c41d47..28f4470 100644
> --- a/tools/perf/util/stat-shadow.c
> +++ b/tools/perf/util/stat-shadow.c
> @@ -506,7 +506,7 @@ static void print_l1_dcache_misses(struct perf_stat_config *config,
>
> color = get_ratio_color(GRC_CACHE_MISSES, ratio);
>
> - out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-dcache hits", ratio);
> + out->print_metric(config, out->ctx, color, "%7.2f%%", "of all +L1-dcache accesses", ratio);
> }
>
> static void print_l1_icache_misses(struct perf_stat_config *config, @@ -527,7 +527,7 @@ static void print_l1_icache_misses(struct perf_stat_config *config,
> ratio = avg / total * 100.0;
>
> color = get_ratio_color(GRC_CACHE_MISSES, ratio);
> - out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-icache hits", ratio);
> + out->print_metric(config, out->ctx, color, "%7.2f%%", "of all +L1-icache accesses", ratio);
> }
>
> static void print_dtlb_cache_misses(struct perf_stat_config *config, @@ -547,7 +547,7 @@ static void print_dtlb_cache_misses(struct perf_stat_config *config,
> ratio = avg / total * 100.0;
>
> color = get_ratio_color(GRC_CACHE_MISSES, ratio);
> - out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB cache hits", ratio);
> + out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB +cache accesses", ratio);
> }
>
> static void print_itlb_cache_misses(struct perf_stat_config *config, @@ -567,7 +567,7 @@ static void print_itlb_cache_misses(struct perf_stat_config *config,
> ratio = avg / total * 100.0;
>
> color = get_ratio_color(GRC_CACHE_MISSES, ratio);
> - out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB cache hits", ratio);
> + out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB +cache accesses", ratio);
> }
>
> static void print_ll_cache_misses(struct perf_stat_config *config, @@ -587,7 +587,7 @@ static void print_ll_cache_misses(struct perf_stat_config *config,
> ratio = avg / total * 100.0;
>
> color = get_ratio_color(GRC_CACHE_MISSES, ratio);
> - out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache hits", ratio);
> + out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache +accesses", ratio);
> }
>
> /*
> @@ -872,7 +872,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
> if (runtime_stat_n(st, STAT_L1_DCACHE, ctx, cpu) != 0)
> print_l1_dcache_misses(config, cpu, evsel, avg, out, st);
> else
> - print_metric(config, ctxp, NULL, NULL, "of all L1-dcache hits", 0);
> + print_metric(config, ctxp, NULL, NULL, "of all L1-dcache accesses", +0);
> } else if (
> evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
> evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_L1I | @@ -882,7 +882,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
> if (runtime_stat_n(st, STAT_L1_ICACHE, ctx, cpu) != 0)
> print_l1_icache_misses(config, cpu, evsel, avg, out, st);
> else
> - print_metric(config, ctxp, NULL, NULL, "of all L1-icache hits", 0);
> + print_metric(config, ctxp, NULL, NULL, "of all L1-icache accesses", +0);
> } else if (
> evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
> evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_DTLB | @@ -892,7 +892,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
> if (runtime_stat_n(st, STAT_DTLB_CACHE, ctx, cpu) != 0)
> print_dtlb_cache_misses(config, cpu, evsel, avg, out, st);
> else
> - print_metric(config, ctxp, NULL, NULL, "of all dTLB cache hits", 0);
> + print_metric(config, ctxp, NULL, NULL, "of all dTLB cache accesses", +0);
> } else if (
> evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
> evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_ITLB | @@ -902,7 +902,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
> if (runtime_stat_n(st, STAT_ITLB_CACHE, ctx, cpu) != 0)
> print_itlb_cache_misses(config, cpu, evsel, avg, out, st);
> else
> - print_metric(config, ctxp, NULL, NULL, "of all iTLB cache hits", 0);
> + print_metric(config, ctxp, NULL, NULL, "of all iTLB cache accesses", +0);
> } else if (
> evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
> evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_LL | @@ -912,7 +912,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
> if (runtime_stat_n(st, STAT_LL_CACHE, ctx, cpu) != 0)
> print_ll_cache_misses(config, cpu, evsel, avg, out, st);
> else
> - print_metric(config, ctxp, NULL, NULL, "of all LL-cache hits", 0);
> + print_metric(config, ctxp, NULL, NULL, "of all LL-cache accesses", +0);
> } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES)) {
> total = runtime_stat_avg(st, STAT_CACHEREFS, ctx, cpu);
>
> --
> 2.8.1
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v2] Perf stat: Fix the ratio comments of miss-events
@ 2019-12-19 3:00 Qi Liu
0 siblings, 0 replies; 2+ messages in thread
From: Qi Liu @ 2019-12-19 3:00 UTC (permalink / raw)
To: peterz, mingo, acme, ak
Cc: arnaldo.melo, mark.rutland, alexander.shishkin, jolsa,
linux-kernel, linux-perf-users, linuxarm
Perf stat displays miss ratio of L1-dcache, L1-icache, dTLB cache,
iTLB cache and LL-cache. Take L1-dcache for example, its miss ratio
is caculated as "L1-dcache-load-misses/L1-dcache-loads". So "of all
L1-dcache hits" is unsuitable to describe it, and "of all L1-dcache
accesses" seems better. The comments of L1-icache, dTLB cache, iTLB
cache and LL-cache are fixed in the same way.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
---
Changelog
v2: Fix the format issue
tools/perf/util/stat-shadow.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 2c41d47..28f4470 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -506,7 +506,7 @@ static void print_l1_dcache_misses(struct perf_stat_config *config,
color = get_ratio_color(GRC_CACHE_MISSES, ratio);
- out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-dcache hits", ratio);
+ out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-dcache accesses", ratio);
}
static void print_l1_icache_misses(struct perf_stat_config *config,
@@ -527,7 +527,7 @@ static void print_l1_icache_misses(struct perf_stat_config *config,
ratio = avg / total * 100.0;
color = get_ratio_color(GRC_CACHE_MISSES, ratio);
- out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-icache hits", ratio);
+ out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-icache accesses", ratio);
}
static void print_dtlb_cache_misses(struct perf_stat_config *config,
@@ -547,7 +547,7 @@ static void print_dtlb_cache_misses(struct perf_stat_config *config,
ratio = avg / total * 100.0;
color = get_ratio_color(GRC_CACHE_MISSES, ratio);
- out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB cache hits", ratio);
+ out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB cache accesses", ratio);
}
static void print_itlb_cache_misses(struct perf_stat_config *config,
@@ -567,7 +567,7 @@ static void print_itlb_cache_misses(struct perf_stat_config *config,
ratio = avg / total * 100.0;
color = get_ratio_color(GRC_CACHE_MISSES, ratio);
- out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB cache hits", ratio);
+ out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB cache accesses", ratio);
}
static void print_ll_cache_misses(struct perf_stat_config *config,
@@ -587,7 +587,7 @@ static void print_ll_cache_misses(struct perf_stat_config *config,
ratio = avg / total * 100.0;
color = get_ratio_color(GRC_CACHE_MISSES, ratio);
- out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache hits", ratio);
+ out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache accesses", ratio);
}
/*
@@ -872,7 +872,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (runtime_stat_n(st, STAT_L1_DCACHE, ctx, cpu) != 0)
print_l1_dcache_misses(config, cpu, evsel, avg, out, st);
else
- print_metric(config, ctxp, NULL, NULL, "of all L1-dcache hits", 0);
+ print_metric(config, ctxp, NULL, NULL, "of all L1-dcache accesses", 0);
} else if (
evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_L1I |
@@ -882,7 +882,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (runtime_stat_n(st, STAT_L1_ICACHE, ctx, cpu) != 0)
print_l1_icache_misses(config, cpu, evsel, avg, out, st);
else
- print_metric(config, ctxp, NULL, NULL, "of all L1-icache hits", 0);
+ print_metric(config, ctxp, NULL, NULL, "of all L1-icache accesses", 0);
} else if (
evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_DTLB |
@@ -892,7 +892,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (runtime_stat_n(st, STAT_DTLB_CACHE, ctx, cpu) != 0)
print_dtlb_cache_misses(config, cpu, evsel, avg, out, st);
else
- print_metric(config, ctxp, NULL, NULL, "of all dTLB cache hits", 0);
+ print_metric(config, ctxp, NULL, NULL, "of all dTLB cache accesses", 0);
} else if (
evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_ITLB |
@@ -902,7 +902,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (runtime_stat_n(st, STAT_ITLB_CACHE, ctx, cpu) != 0)
print_itlb_cache_misses(config, cpu, evsel, avg, out, st);
else
- print_metric(config, ctxp, NULL, NULL, "of all iTLB cache hits", 0);
+ print_metric(config, ctxp, NULL, NULL, "of all iTLB cache accesses", 0);
} else if (
evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_LL |
@@ -912,7 +912,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (runtime_stat_n(st, STAT_LL_CACHE, ctx, cpu) != 0)
print_ll_cache_misses(config, cpu, evsel, avg, out, st);
else
- print_metric(config, ctxp, NULL, NULL, "of all LL-cache hits", 0);
+ print_metric(config, ctxp, NULL, NULL, "of all LL-cache accesses", 0);
} else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES)) {
total = runtime_stat_avg(st, STAT_CACHEREFS, ctx, cpu);
--
2.8.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-05-06 12:24 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <B82435381E3B2943AA4D2826ADEF0B3A02333ED8@DGGEML522-MBX.china.huawei.com>
[not found] ` <bac9f132-63c4-df6c-6959-32bc63ac3cdd@huawei.com>
2020-05-06 12:24 ` [PATCH v2] perf stat: Fix the ratio comments of miss-events Qi Liu
2019-12-19 3:00 [PATCH v2] Perf " Qi Liu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).