Messages in this thread Patch in this message | | | From | weilin.wang@intel ... | Subject | [RFC PATCH v4 13/15] perf stat: Code refactoring in hardware-grouping | Date | Thu, 8 Feb 2024 19:14:39 -0800 |
| |
From: Weilin Wang <weilin.wang@intel.com>
Decouple the step to generate final grouping strings out from the build_grouping step so that we could do single metric grouping and then merge groups if needed later.
Signed-off-by: Weilin Wang <weilin.wang@intel.com> --- tools/perf/util/metricgroup.c | 50 +++++++++++++++++------------------ 1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index f1eb73957765..cfdbb5f7fb77 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -1896,9 +1896,10 @@ static int find_and_set_counters(struct metricgroup__event_info *e, { int ret; unsigned long find_bit = 0; - - if (e->taken_alone && current_group->taken_alone) + if (e->taken_alone && current_group->taken_alone) { + pr_debug("current group with taken alone event already\n"); return -ENOSPC; + } if (e->free_counter) return 0; if (e->fixed_counter) { @@ -2017,7 +2018,8 @@ static int assign_event_grouping(struct metricgroup__event_info *e, list_for_each_entry(g, groups, nd) { if (!strcasecmp(g->pmu_name, e->pmu_name)) { - pr_debug("found group for event %s in pmu %s\n", e->name, g->pmu_name); + pr_debug("found group header for event %s in pmu %s\n", + e->name, g->pmu_name); pmu_group_head = g; break; } @@ -2146,26 +2148,22 @@ static int hw_aware_metricgroup__build_event_string(struct list_head *group_strs */ static int create_grouping(struct list_head *pmu_info_list, struct list_head *event_info_list, - struct list_head *groupings, - const char *modifier) + struct list_head *grouping) { int ret = 0; struct metricgroup__event_info *e; - LIST_HEAD(groups); char *bit_buf = malloc(NR_COUNTERS); - //TODO: for each new core group, we should consider to add events that uses fixed counters + //TODO: for each new core group, we could consider to add events that + //uses fixed counters list_for_each_entry(e, event_info_list, nd) { bitmap_scnprintf(e->counters, NR_COUNTERS, bit_buf, NR_COUNTERS); pr_debug("Event name %s, [pmu]=%s, [counters]=%s, [taken_alone]=%d\n", e->name, e->pmu_name, bit_buf, e->taken_alone); - ret = assign_event_grouping(e, pmu_info_list, &groups); + ret = assign_event_grouping(e, pmu_info_list, grouping); if (ret) - goto out; + return ret; } - ret = hw_aware_metricgroup__build_event_string(groupings, modifier, &groups); -out: - metricgroup__free_group_list(&groups); return ret; }; @@ -2186,9 +2184,8 @@ static bool is_special_event(const char *id) * @groupings: header to the list of final event grouping. * @modifier: any modifiers added to the events. */ -static int hw_aware_build_grouping(struct expr_parse_ctx *ctx __maybe_unused, - struct list_head *groupings __maybe_unused, - const char *modifier __maybe_unused) +static int hw_aware_build_grouping(struct expr_parse_ctx *ctx, + struct list_head *grouping) { int ret = 0; struct hashmap_entry *cur; @@ -2220,8 +2217,7 @@ static int hw_aware_build_grouping(struct expr_parse_ctx *ctx __maybe_unused, ret = get_pmu_counter_layouts(&pmu_info_list, ltable); if (ret) goto err_out; - ret = create_grouping(&pmu_info_list, &event_info_list, groupings, - modifier); + ret = create_grouping(&pmu_info_list, &event_info_list, grouping); err_out: metricgroup__free_event_info(&event_info_list); @@ -2267,23 +2263,25 @@ static int hw_aware_parse_ids(struct perf_pmu *fake_pmu, { struct parse_events_error parse_error; struct evlist *parsed_evlist; - LIST_HEAD(groupings); + LIST_HEAD(grouping_str); + LIST_HEAD(grouping); struct metricgroup__group_strs *group; int ret; *out_evlist = NULL; - ret = hw_aware_build_grouping(ids, &groupings, modifier); - if (ret) { - metricgroup__free_grouping_strs(&groupings); - return ret; - } + ret = hw_aware_build_grouping(ids, &grouping); + if (ret) + goto out; + ret = hw_aware_metricgroup__build_event_string(&grouping_str, modifier, &grouping); + if (ret) + goto out; parsed_evlist = evlist__new(); if (!parsed_evlist) { ret = -ENOMEM; goto err_out; } - list_for_each_entry(group, &groupings, nd) { + list_for_each_entry(group, &grouping_str, nd) { struct strbuf *events = &group->grouping_str; pr_debug("Parsing metric events '%s'\n", events->buf); @@ -2303,7 +2301,9 @@ static int hw_aware_parse_ids(struct perf_pmu *fake_pmu, err_out: parse_events_error__exit(&parse_error); evlist__delete(parsed_evlist); - metricgroup__free_grouping_strs(&groupings); +out: + metricgroup__free_group_list(&grouping); + metricgroup__free_grouping_strs(&grouping_str); return ret; } -- 2.42.0
| |