| Message ID | 1587120084-18990-11-git-send-email-john.garry@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | perf pmu-events: Support event aliasing for system PMUs | expand |
On Fri, Apr 17, 2020 at 06:41:21PM +0800, John Garry wrote: SNIP > static int metricgroup__add_metric(const char *metric, struct strbuf *events, > struct list_head *group_list) > { > @@ -502,37 +542,12 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, > break; > if (!pe->metric_expr) > continue; > - if (match_metric(pe->metric_group, metric) || > - match_metric(pe->metric_name, metric)) { > - const char **ids; > - int idnum; > - struct egroup *eg; > - > - pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name); > > - if (expr__find_other(pe->metric_expr, > - NULL, &ids, &idnum) < 0) > - continue; > - if (events->len > 0) > - strbuf_addf(events, ","); > - > - if (metricgroup__has_constraint(pe)) > - metricgroup__add_metric_non_group(events, ids, idnum); > - else > - metricgroup__add_metric_weak_group(events, ids, idnum); > - > - eg = malloc(sizeof(struct egroup)); > - if (!eg) { > - ret = -ENOMEM; > - break; > - } > - eg->ids = ids; > - eg->idnum = idnum; > - eg->metric_name = pe->metric_name; > - eg->metric_expr = pe->metric_expr; > - eg->metric_unit = pe->unit; > - list_add_tail(&eg->nd, group_list); > - ret = 0; also this place got changed just recently a lot, so you might want to rebase to the Arnaldo's latest perf/core jirka > + if (match_pe_metric(pe, metric)) { > + ret = metricgroup__add_metric_pmu_event(pe, events, > + group_list); > + if (ret) > + return ret; > } > } > return ret; > -- > 2.16.4 >
On 22/04/2020 12:44, Jiri Olsa wrote: >> static int metricgroup__add_metric(const char *metric, struct strbuf *events, >> struct list_head *group_list) >> { >> @@ -502,37 +542,12 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, >> break; >> if (!pe->metric_expr) >> continue; >> - if (match_metric(pe->metric_group, metric) || >> - match_metric(pe->metric_name, metric)) { >> - const char **ids; >> - int idnum; >> - struct egroup *eg; >> - >> - pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name); >> >> - if (expr__find_other(pe->metric_expr, >> - NULL, &ids, &idnum) < 0) >> - continue; >> - if (events->len > 0) >> - strbuf_addf(events, ","); >> - >> - if (metricgroup__has_constraint(pe)) >> - metricgroup__add_metric_non_group(events, ids, idnum); >> - else >> - metricgroup__add_metric_weak_group(events, ids, idnum); >> - >> - eg = malloc(sizeof(struct egroup)); >> - if (!eg) { >> - ret = -ENOMEM; >> - break; >> - } >> - eg->ids = ids; >> - eg->idnum = idnum; >> - eg->metric_name = pe->metric_name; >> - eg->metric_expr = pe->metric_expr; >> - eg->metric_unit = pe->unit; >> - list_add_tail(&eg->nd, group_list); >> - ret = 0; > also this place got changed just recently a lot, > so you might want to rebase to the Arnaldo's latest perf/core Hi jirka, Yeah, I saw that. I can check. TBH, apart from that, I would be welcome to opinion on this latter patch of the series, concerned with metrics. I just split (butcher) the function and call common parts from 2x places now. Maybe there's a more fluid way to do this. Cheers, John
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 926449a7cdbf..d1033756a1bc 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -231,6 +231,12 @@ static bool match_metric(const char *n, const char *list) return false; } +static bool match_pe_metric(struct pmu_event *pe, const char *metric) +{ + return match_metric(pe->metric_group, metric) || + match_metric(pe->metric_name, metric); +} + struct mep { struct rb_node nd; const char *name; @@ -485,6 +491,40 @@ static bool metricgroup__has_constraint(struct pmu_event *pe) return false; } +static int metricgroup__add_metric_pmu_event(struct pmu_event *pe, + struct strbuf *events, + struct list_head *group_list) +{ + const char **ids; + int idnum; + struct egroup *eg; + + pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name); + + if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum) < 0) + return 0; + + if (events->len > 0) + strbuf_addf(events, ","); + + if (metricgroup__has_constraint(pe)) + metricgroup__add_metric_non_group(events, ids, idnum); + else + metricgroup__add_metric_weak_group(events, ids, idnum); + + eg = malloc(sizeof(*eg)); + if (!eg) + return -ENOMEM; + eg->ids = ids; + eg->idnum = idnum; + eg->metric_name = pe->metric_name; + eg->metric_expr = pe->metric_expr; + eg->metric_unit = pe->unit; + list_add_tail(&eg->nd, group_list); + + return 0; +} + static int metricgroup__add_metric(const char *metric, struct strbuf *events, struct list_head *group_list) { @@ -502,37 +542,12 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, break; if (!pe->metric_expr) continue; - if (match_metric(pe->metric_group, metric) || - match_metric(pe->metric_name, metric)) { - const char **ids; - int idnum; - struct egroup *eg; - - pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name); - if (expr__find_other(pe->metric_expr, - NULL, &ids, &idnum) < 0) - continue; - if (events->len > 0) - strbuf_addf(events, ","); - - if (metricgroup__has_constraint(pe)) - metricgroup__add_metric_non_group(events, ids, idnum); - else - metricgroup__add_metric_weak_group(events, ids, idnum); - - eg = malloc(sizeof(struct egroup)); - if (!eg) { - ret = -ENOMEM; - break; - } - eg->ids = ids; - eg->idnum = idnum; - eg->metric_name = pe->metric_name; - eg->metric_expr = pe->metric_expr; - eg->metric_unit = pe->unit; - list_add_tail(&eg->nd, group_list); - ret = 0; + if (match_pe_metric(pe, metric)) { + ret = metricgroup__add_metric_pmu_event(pe, events, + group_list); + if (ret) + return ret; } } return ret;
To aid supporting system event metric groups, break up the function metricgroup__add_metric() into a part which iterates metrics and a part which actually "adds" the metric. No functional change intended. Signed-off-by: John Garry <john.garry@huawei.com> --- tools/perf/util/metricgroup.c | 75 ++++++++++++++++++++++++++----------------- 1 file changed, 45 insertions(+), 30 deletions(-)