[PATCH v5 07/15] perf stat: Remove evsel metric_name/expr

Ian Rogers
2023-01-26T23:38:32Z

Metrics are their own unit and these variables held broken metrics
previously and now just hold the value NULL. Remove code that used
these variables.

Reviewed-by: John Garry <john.g.garry@oracle.com>
---
tools/perf/builtin-stat.c | 1 -
tools/perf/util/cgroup.c | 1 -
tools/perf/util/evsel.c | 2 -
tools/perf/util/evsel.h | 2 -
tools/perf/util/python.c | 7 ---
tools/perf/util/stat-shadow.c | 112 ----------------------------------
tools/perf/util/stat.h | 1 -
7 files changed, 126 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 9f3e4b257516..5d18a5a6f662 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -2524,7 +2524,6 @@ int cmd_stat(int argc, const char **argv)
&stat_config.metric_events);
zfree(&metrics);
}
- perf_stat__collect_metric_expr(evsel_list);
perf_stat__init_shadow_stats();

if (add_default_attributes())
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index cd978c240e0d..bfb13306d82c 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -481,7 +481,6 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str,
nr_cgroups++;

if (metric_events) {
- perf_stat__collect_metric_expr(tmp_list);
if (metricgroup__copy_metric_events(tmp_list, cgrp,
metric_events,
&orig_metric_events) < 0)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 8550638587e5..a90e998826e0 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -285,8 +285,6 @@ void evsel__init(struct evsel *evsel,
evsel->sample_size = __evsel__sample_size(attr->sample_type);
evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
- evsel->metric_expr = NULL;
- evsel->metric_name = NULL;
evsel->metric_events = NULL;
evsel->per_pkg_mask = NULL;
evsel->collect_stat = false;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d572be41b960..24cb807ef6ce 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -105,8 +105,6 @@ struct evsel {
* metric fields are similar, but needs more care as they can have
* references to other metric (evsel).
*/
- const char * metric_expr;
- const char * metric_name;
struct evsel **metric_events;
struct evsel *metric_leader;

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 9e5d881b0987..42e8b813d010 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -76,13 +76,6 @@ const char *perf_env__arch(struct perf_env *env __maybe_unused)
return NULL;
}

-/*
- * Add this one here not to drag util/stat-shadow.c
- */
-void perf_stat__collect_metric_expr(struct evlist *evsel_list)
-{
-}
-
/*
* These ones are needed not to drag the PMU bandwagon, jevents generated
* pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index cadb2df23c87..35ea4813f468 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -346,114 +346,6 @@ static const char *get_ratio_color(enum grc_type type, double ratio)
return color;
}

-static struct evsel *perf_stat__find_event(struct evlist *evsel_list,
- const char *name)
-{
- struct evsel *c2;
-
- evlist__for_each_entry (evsel_list, c2) {
- if (!strcasecmp(c2->name, name) && !c2->collect_stat)
- return c2;
- }
- return NULL;
-}
-
-/* Mark MetricExpr target events and link events using them to them. */
-void perf_stat__collect_metric_expr(struct evlist *evsel_list)
-{
- struct evsel *counter, *leader, **metric_events, *oc;
- bool found;
- struct expr_parse_ctx *ctx;
- struct hashmap_entry *cur;
- size_t bkt;
- int i;
-
- ctx = expr__ctx_new();
- if (!ctx) {
- pr_debug("expr__ctx_new failed");
- return;
- }
- evlist__for_each_entry(evsel_list, counter) {
- bool invalid = false;
-
- leader = evsel__leader(counter);
- if (!counter->metric_expr)
- continue;
-
- expr__ctx_clear(ctx);
- metric_events = counter->metric_events;
- if (!metric_events) {
- if (expr__find_ids(counter->metric_expr,
- counter->name,
- ctx) < 0)
- continue;
-
- metric_events = calloc(sizeof(struct evsel *),
- hashmap__size(ctx->ids) + 1);
- if (!metric_events) {
- expr__ctx_free(ctx);
- return;
- }
- counter->metric_events = metric_events;
- }
-
- i = 0;
- hashmap__for_each_entry(ctx->ids, cur, bkt) {
- const char *metric_name = cur->pkey;
-
- found = false;
- if (leader) {
- /* Search in group */
- for_each_group_member (oc, leader) {
- if (!strcasecmp(oc->name,
- metric_name) &&
- !oc->collect_stat) {
- found = true;
- break;
- }
- }
- }
- if (!found) {
- /* Search ignoring groups */
- oc = perf_stat__find_event(evsel_list,
- metric_name);
- }
- if (!oc) {
- /* Deduping one is good enough to handle duplicated PMUs. */
- static char *printed;
-
- /*
- * Adding events automatically would be difficult, because
- * it would risk creating groups that are not schedulable.
- * perf stat doesn't understand all the scheduling constraints
- * of events. So we ask the user instead to add the missing
- * events.
- */
- if (!printed ||
- strcasecmp(printed, metric_name)) {
- fprintf(stderr,
- "Add %s event to groups to get metric expression for %s\n",
- metric_name,
- counter->name);
- free(printed);
- printed = strdup(metric_name);
- }
- invalid = true;
- continue;
- }
- metric_events[i++] = oc;
- oc->collect_stat = true;
- }
- metric_events[i] = NULL;
- if (invalid) {
- free(metric_events);
- counter->metric_events = NULL;
- counter->metric_expr = NULL;
- }
- }
- expr__ctx_free(ctx);
-}
-
static double runtime_stat_avg(struct runtime_stat *st,
enum stat_type type, int map_idx,
struct runtime_stat_data *rsd)
@@ -1299,10 +1191,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
color = NULL;
print_metric(config, ctxp, color, "%8.1f%%", "Core Bound",
core_bound * 100.);
- } else if (evsel->metric_expr) {
- generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
- evsel->name, evsel->metric_name, NULL, 1,
- map_idx, out, st);
} else if (runtime_stat_n(st, STAT_NSECS, map_idx, &rsd) != 0) {
char unit = ' ';
char unit_buf[10] = "/sec";
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 499c3bf81333..b1c29156c560 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -257,7 +257,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
struct perf_stat_output_ctx *out,
struct rblist *metric_events,
struct runtime_stat *st);
-void perf_stat__collect_metric_expr(struct evlist *);

int evlist__alloc_stats(struct perf_stat_config *config,
struct evlist *evlist, bool alloc_raw);
--
2.39.1.456.gfc5497dd1b-goog