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Date: Sun, 12 Jul 2020 15:26:27 +0200
From: Jiri Olsa <jolsa@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: lkml <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Michael Petlan <mpetlan@...hat.com>,
Andi Kleen <ak@...ux.intel.com>,
Kajol Jain <kjain@...ux.ibm.com>,
John Garry <john.garry@...wei.com>,
"Paul A. Clarke" <pc@...ibm.com>,
Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH 11/18] perf metric: Add referenced metrics to hash data
Adding referenced metrics to the parsing context so they
can be resolved during the metric processing.
Adding expr__add_ref function to store referenced metrics
into parse context.
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
tools/perf/util/expr.c | 35 +++++++++++++++++++++++++++++++++++
tools/perf/util/expr.h | 13 ++++++++++++-
tools/perf/util/stat-shadow.c | 20 ++++++++++++++------
3 files changed, 61 insertions(+), 7 deletions(-)
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index 91142d4c3419..6bf8a21f5c53 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -4,6 +4,8 @@
#include <errno.h>
#include <stdlib.h>
#include <string.h>
+#include "metricgroup.h"
+#include "debug.h"
#include "expr.h"
#include "expr-bison.h"
#include "expr-flex.h"
@@ -61,6 +63,7 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val)
if (!data_ptr)
return -ENOMEM;
data_ptr->val = val;
+ data_ptr->is_ref = false;
ret = hashmap__set(&ctx->ids, id, data_ptr,
(const void **)&old_key, (void **)&old_data);
@@ -69,6 +72,38 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val)
return ret;
}
+int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref)
+{
+ struct expr_id_data *data_ptr = NULL, *old_data = NULL;
+ char *old_key = NULL;
+ char *name;
+ int ret;
+
+ data_ptr = zalloc(sizeof(*data_ptr));
+ if (!data_ptr)
+ return -ENOMEM;
+
+ name = strdup(ref->metric_name);
+ if (!name) {
+ free(data_ptr);
+ return -ENOMEM;
+ }
+
+ data_ptr->ref.metric_name = ref->metric_name;
+ data_ptr->ref.metric_expr = ref->metric_expr;
+ data_ptr->is_ref = true;
+
+ ret = hashmap__set(&ctx->ids, name, data_ptr,
+ (const void **)&old_key, (void **)&old_data);
+
+ pr_debug2("adding ref metric %s: %s\n",
+ ref->metric_name, ref->metric_expr);
+
+ free(old_key);
+ free(old_data);
+ return ret;
+}
+
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data)
{
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 2462abd0ac65..d19e66915228 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -11,12 +11,22 @@
#include "util/hashmap.h"
//#endif
+struct metric_ref;
+
struct expr_parse_ctx {
struct hashmap ids;
};
struct expr_id_data {
- double val;
+ bool is_ref;
+
+ union {
+ double val;
+ struct {
+ const char *metric_name;
+ const char *metric_expr;
+ } ref;
+ };
};
struct expr_scanner_ctx {
@@ -29,6 +39,7 @@ void expr__ctx_clear(struct expr_parse_ctx *ctx);
void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
+int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data);
int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index fc9ac4b4218e..e1ba6c1b916a 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -731,13 +731,14 @@ static void print_smi_cost(struct perf_stat_config *config,
}
static int prepare_metric(struct evsel **metric_events,
+ struct metric_ref *metric_refs,
struct expr_parse_ctx *pctx,
int cpu,
struct runtime_stat *st)
{
double scale;
char *n, *pn;
- int i;
+ int i, j, ret;
expr__ctx_init(pctx);
for (i = 0; metric_events[i]; i++) {
@@ -778,12 +779,19 @@ static int prepare_metric(struct evsel **metric_events,
expr__add_id_val(pctx, n, avg_stats(stats)*scale);
}
+ for (j = 0; metric_refs && metric_refs[j].metric_name; j++) {
+ ret = expr__add_ref(pctx, &metric_refs[j]);
+ if (ret)
+ return ret;
+ }
+
return i;
}
static void generic_metric(struct perf_stat_config *config,
const char *metric_expr,
struct evsel **metric_events,
+ struct metric_ref *metric_refs,
char *name,
const char *metric_name,
const char *metric_unit,
@@ -798,7 +806,7 @@ static void generic_metric(struct perf_stat_config *config,
int i;
void *ctxp = out->ctx;
- i = prepare_metric(metric_events, &pctx, cpu, st);
+ i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st);
if (i < 0)
return;
@@ -847,7 +855,7 @@ double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_sta
struct expr_parse_ctx pctx;
double ratio;
- if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0)
+ if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0)
return 0.;
if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))
@@ -1064,8 +1072,8 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
else
print_metric(config, ctxp, NULL, NULL, name, 0);
} else if (evsel->metric_expr) {
- generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name,
- evsel->metric_name, NULL, 1, cpu, out, st);
+ generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
+ evsel->name, evsel->metric_name, NULL, 1, cpu, out, st);
} else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) {
char unit = 'M';
char unit_buf[10];
@@ -1093,7 +1101,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
if (num++ > 0)
out->new_line(config, ctxp);
generic_metric(config, mexp->metric_expr, mexp->metric_events,
- evsel->name, mexp->metric_name,
+ mexp->metric_refs, evsel->name, mexp->metric_name,
mexp->metric_unit, mexp->runtime, cpu, out, st);
}
}
--
2.25.4
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