From: Jiri Olsa <jolsa@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>, Ian Rogers <irogers@google.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
John Garry <john.garry@huawei.com>,
Michael Petlan <mpetlan@redhat.com>,
Namhyung Kim <namhyung@kernel.org>, Paul Clarke <pc@us.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
lkml <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 10/19] perf metric: Add referenced metrics to hash data
Date: Wed, 29 Jul 2020 11:18:59 +0200 [thread overview]
Message-ID: <20200729091908.1378911-11-jolsa@kernel.org> (raw)
In-Reply-To: <20200729091908.1378911-1-jolsa@kernel.org>
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@kernel.org>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200719181320.785305-11-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/expr.c | 54 +++++++++++++++++++++++++++++++++++
tools/perf/util/expr.h | 13 ++++++++-
tools/perf/util/stat-shadow.c | 20 +++++++++----
3 files changed, 80 insertions(+), 7 deletions(-)
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index f726211f49d4..d3997c2b4a90 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -4,10 +4,14 @@
#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"
#include <linux/kernel.h>
+#include <linux/zalloc.h>
+#include <ctype.h>
#ifdef PARSER_DEBUG
extern int expr_debug;
@@ -63,6 +67,7 @@ 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);
@@ -73,6 +78,55 @@ 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, *p;
+ 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;
+ }
+
+ /*
+ * The jevents tool converts all metric expressions
+ * to lowercase, including metric references, hence
+ * we need to add lowercase name for metric, so it's
+ * properly found.
+ */
+ for (p = name; *p; p++)
+ *p = tolower(*p);
+
+ /*
+ * Intentionally passing just const char pointers,
+ * originally from 'struct pmu_event' object.
+ * We don't need to change them, so there's no
+ * need to create our own copy.
+ */
+ 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);
+ if (ret)
+ free(data_ptr);
+
+ 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..81d04ff7f857 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;
+ union {
+ double val;
+ struct {
+ const char *metric_name;
+ const char *metric_expr;
+ } ref;
+ };
+
+ bool is_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
next prev parent reply other threads:[~2020-07-29 9:20 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-29 9:18 [PATCHv4 00/19] perf metric: Add support to reuse metric Jiri Olsa
2020-07-29 9:18 ` [PATCH 01/19] perf metric: Fix memory leak in expr__add_id function Jiri Olsa
2020-07-29 9:18 ` [PATCH 02/19] perf metric: Add " Jiri Olsa
2020-07-29 9:18 ` [PATCH 03/19] perf metric: Change expr__get_id to return struct expr_id_data Jiri Olsa
2020-07-29 9:18 ` [PATCH 04/19] perf metric: Add expr__del_id function Jiri Olsa
2020-07-29 9:18 ` [PATCH 05/19] perf metric: Add macros for iterating map events Jiri Olsa
2020-07-29 9:18 ` [PATCH 06/19] perf metric: Add add_metric function Jiri Olsa
2020-07-29 9:18 ` [PATCH 07/19] perf metric: Rename __metricgroup__add_metric to __add_metric Jiri Olsa
2020-07-29 9:18 ` [PATCH 08/19] perf metric: Collect referenced metrics in struct metric_ref_node Jiri Olsa
2020-07-29 9:18 ` [PATCH 09/19] perf metric: Collect referenced metrics in struct metric_expr Jiri Olsa
2020-07-29 9:18 ` Jiri Olsa [this message]
2020-07-29 9:19 ` [PATCH 11/19] perf metric: Compute referenced metrics Jiri Olsa
2020-07-29 9:19 ` [PATCH 12/19] perf metric: Add events for the current list Jiri Olsa
2020-07-29 9:19 ` [PATCH 13/19] perf metric: Add cache_miss_cycles to metric parse test Jiri Olsa
2020-07-29 9:19 ` [PATCH 14/19] perf metric: Add DCache_L2 " Jiri Olsa
2020-07-29 9:19 ` [PATCH 15/19] perf metric: Add recursion check when processing nested metrics Jiri Olsa
2020-07-29 9:19 ` [PATCH 16/19] perf metric: Make compute_single function more precise Jiri Olsa
2020-07-29 9:19 ` [PATCH 17/19] perf metric: Add metric group test Jiri Olsa
2020-07-29 9:19 ` [PATCH 18/19] perf metric: Rename struct egroup to metric Jiri Olsa
2020-07-29 9:19 ` [PATCH 19/19] perf metric: Rename group_list to metric_list Jiri Olsa
2020-08-01 11:40 ` [PATCHv4 00/19] perf metric: Add support to reuse metric Paul A. Clarke
2020-08-03 15:54 ` Ian Rogers
2020-08-03 16:26 ` Jiri Olsa
2020-08-03 16:49 ` Arnaldo Carvalho de Melo
2021-03-22 11:36 ` John Garry
2021-03-23 15:06 ` Paul A. Clarke
2021-03-23 15:15 ` John Garry
2021-03-24 1:54 ` Paul A. Clarke
2021-03-24 9:13 ` John Garry
-- strict thread matches above, loose matches on Subject: below --
2020-07-19 18:13 [PATCHv3 " Jiri Olsa
2020-07-19 18:13 ` [PATCH 10/19] perf metric: Add referenced metrics to hash data Jiri Olsa
2020-07-19 22:32 ` Ian Rogers
2020-07-26 9:18 ` kajoljain
2020-07-28 12:32 ` Arnaldo Carvalho de Melo
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