[PATCH v6 04/11] perf util: Update per-thread shadow stats
From: Jin Yao
Date: Tue Dec 05 2017 - 01:10:13 EST
The functions perf_stat__update_shadow_stats() is called
to update the shadow stats on a set of static variables.
But the static variables are the limitations to be extended
to support per-thread shadow stats.
This patch lets the perf_stat__update_shadow_stats() support
to update the shadow stats on a input parameter 'stat' and
uses update_runtime_stat() to update the stats. It will not
directly update the static variables as before.
Signed-off-by: Jin Yao <yao.jin@xxxxxxxxxxxxxxx>
---
tools/perf/builtin-script.c | 3 +-
tools/perf/builtin-stat.c | 3 +-
tools/perf/util/stat-shadow.c | 86 +++++++++++++++++++++++++++++--------------
tools/perf/util/stat.c | 8 ++--
tools/perf/util/stat.h | 2 +-
5 files changed, 68 insertions(+), 34 deletions(-)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 39d8b55..81b3950 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1548,7 +1548,8 @@ static void perf_sample__fprint_metric(struct perf_script *script,
val = sample->period * evsel->scale;
perf_stat__update_shadow_stats(evsel,
val,
- sample->cpu);
+ sample->cpu,
+ &rt_stat);
evsel_script(evsel)->val = val;
if (evsel_script(evsel->leader)->gnum == evsel->leader->nr_members) {
for_each_group_member (ev2, evsel->leader) {
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a027b47..3f4a2c2 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1214,7 +1214,8 @@ static void aggr_update_shadow(void)
val += perf_counts(counter->counts, cpu, 0)->val;
}
perf_stat__update_shadow_stats(counter, val,
- first_shadow_cpu(counter, id));
+ first_shadow_cpu(counter, id),
+ &rt_stat);
}
}
}
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index e60c321..11c921d 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -116,19 +116,29 @@ static void saved_value_delete(struct rblist *rblist __maybe_unused,
static struct saved_value *saved_value_lookup(struct perf_evsel *evsel,
int cpu,
- bool create)
+ bool create,
+ enum stat_type type,
+ int ctx,
+ struct runtime_stat *stat)
{
+ struct rblist *rblist;
struct rb_node *nd;
struct saved_value dm = {
.cpu = cpu,
.evsel = evsel,
+ .type = type,
+ .ctx = ctx,
+ .stat = stat,
};
- nd = rblist__find(&runtime_saved_values, &dm);
+
+ rblist = &stat->value_list;
+
+ nd = rblist__find(rblist, &dm);
if (nd)
return container_of(nd, struct saved_value, rb_node);
if (create) {
- rblist__add_node(&runtime_saved_values, &dm);
- nd = rblist__find(&runtime_saved_values, &dm);
+ rblist__add_node(rblist, &dm);
+ nd = rblist__find(rblist, &dm);
if (nd)
return container_of(nd, struct saved_value, rb_node);
}
@@ -217,13 +227,24 @@ void perf_stat__reset_shadow_stats(void)
}
}
+static void update_runtime_stat(struct runtime_stat *stat,
+ enum stat_type type,
+ int ctx, int cpu, u64 count)
+{
+ struct saved_value *v = saved_value_lookup(NULL, cpu, true,
+ type, ctx, stat);
+
+ if (v)
+ update_stats(&v->stats, count);
+}
+
/*
* Update various tracking values we maintain to print
* more semantic information such as miss/hit ratios,
* instruction rates, etc:
*/
void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
- int cpu)
+ int cpu, struct runtime_stat *stat)
{
int ctx = evsel_context(counter);
@@ -231,50 +252,58 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK) ||
perf_evsel__match(counter, SOFTWARE, SW_CPU_CLOCK))
- update_stats(&runtime_nsecs_stats[cpu], count);
+ update_runtime_stat(stat, STAT_NSECS, 0, cpu, count);
else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
- update_stats(&runtime_cycles_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_CYCLES, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
- update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_CYCLES_IN_TX, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TRANSACTION_START))
- update_stats(&runtime_transaction_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TRANSACTION, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, ELISION_START))
- update_stats(&runtime_elision_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_ELISION, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TOPDOWN_TOTAL_SLOTS))
- update_stats(&runtime_topdown_total_slots[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TOPDOWN_TOTAL_SLOTS,
+ ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_ISSUED))
- update_stats(&runtime_topdown_slots_issued[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TOPDOWN_SLOTS_ISSUED,
+ ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_RETIRED))
- update_stats(&runtime_topdown_slots_retired[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TOPDOWN_SLOTS_RETIRED,
+ ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_BUBBLES))
- update_stats(&runtime_topdown_fetch_bubbles[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TOPDOWN_FETCH_BUBBLES,
+ ctx, cpu, count);
else if (perf_stat_evsel__is(counter, TOPDOWN_RECOVERY_BUBBLES))
- update_stats(&runtime_topdown_recovery_bubbles[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_TOPDOWN_RECOVERY_BUBBLES,
+ ctx, cpu, count);
else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
- update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_STALLED_CYCLES_FRONT,
+ ctx, cpu, count);
else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
- update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_STALLED_CYCLES_BACK,
+ ctx, cpu, count);
else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
- update_stats(&runtime_branches_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_BRANCHES, ctx, cpu, count);
else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
- update_stats(&runtime_cacherefs_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_CACHEREFS, ctx, cpu, count);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
- update_stats(&runtime_l1_dcache_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_L1_DCACHE, ctx, cpu, count);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
- update_stats(&runtime_ll_cache_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_L1_ICACHE, ctx, cpu, count);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
- update_stats(&runtime_ll_cache_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_LL_CACHE, ctx, cpu, count);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
- update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_DTLB_CACHE, ctx, cpu, count);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
- update_stats(&runtime_itlb_cache_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_ITLB_CACHE, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, SMI_NUM))
- update_stats(&runtime_smi_num_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_SMI_NUM, ctx, cpu, count);
else if (perf_stat_evsel__is(counter, APERF))
- update_stats(&runtime_aperf_stats[ctx][cpu], count);
+ update_runtime_stat(stat, STAT_APERF, ctx, cpu, count);
if (counter->collect_stat) {
- struct saved_value *v = saved_value_lookup(counter, cpu, true);
+ struct saved_value *v = saved_value_lookup(counter, cpu, true,
+ STAT_NONE, 0, stat);
update_stats(&v->stats, count);
}
}
@@ -694,7 +723,8 @@ static void generic_metric(const char *metric_expr,
stats = &walltime_nsecs_stats;
scale = 1e-9;
} else {
- v = saved_value_lookup(metric_events[i], cpu, false);
+ v = saved_value_lookup(metric_events[i], cpu, false,
+ STAT_NONE, 0, &rt_stat);
if (!v)
break;
stats = &v->stats;
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 151e9ef..78abfd4 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -278,9 +278,11 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel
perf_evsel__compute_deltas(evsel, cpu, thread, count);
perf_counts_values__scale(count, config->scale, NULL);
if (config->aggr_mode == AGGR_NONE)
- perf_stat__update_shadow_stats(evsel, count->val, cpu);
+ perf_stat__update_shadow_stats(evsel, count->val, cpu,
+ &rt_stat);
if (config->aggr_mode == AGGR_THREAD)
- perf_stat__update_shadow_stats(evsel, count->val, 0);
+ perf_stat__update_shadow_stats(evsel, count->val, 0,
+ &rt_stat);
break;
case AGGR_GLOBAL:
aggr->val += count->val;
@@ -362,7 +364,7 @@ int perf_stat_process_counter(struct perf_stat_config *config,
/*
* Save the full runtime - to allow normalization during printout:
*/
- perf_stat__update_shadow_stats(counter, *count, 0);
+ perf_stat__update_shadow_stats(counter, *count, 0, &rt_stat);
return 0;
}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 5a0ebdc..e05bcfb 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -129,7 +129,7 @@ void runtime_stat__exit(struct runtime_stat *stat);
void perf_stat__init_shadow_stats(void);
void perf_stat__reset_shadow_stats(void);
void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
- int cpu);
+ int cpu, struct runtime_stat *stat);
struct perf_stat_output_ctx {
void *ctx;
print_metric_t print_metric;
--
2.7.4