From 8366f0d268c20929d82d4b1407bd4c6f9232bdec Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Thu, 27 Aug 2020 21:32:01 +0200 Subject: perf tests: Call test_attr__open() directly There's no longer need to call test_attr__open() from sys_perf_event_open(), because both 'perf record' and 'perf stat' call evsel__open_cpu(), so we can call it directly from there and not polute the perf-sys.h header. Committer testing: Before and after: # perf test attr 17: Setup struct perf_event_attr : Ok 49: Synthesize attr update : Ok # perf test -v attr 17: Setup struct perf_event_attr : --- start --- test child forked, pid 2170868 running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_ret' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_ret' running '/home/acme/libexec/perf-core/tests/attr/test-record-C0' running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-fp' running '/home/acme/libexec/perf-core/tests/attr/test-record-period' running '/home/acme/libexec/perf-core/tests/attr/test-record-group-sampling' running '/home/acme/libexec/perf-core/tests/attr/test-record-freq' running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-3' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-k' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-k' running '/home/acme/libexec/perf-core/tests/attr/test-stat-group1' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-u' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-u' running '/home/acme/libexec/perf-core/tests/attr/test-stat-basic' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_call' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_call' running '/home/acme/libexec/perf-core/tests/attr/test-stat-default' running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-dwarf' running '/home/acme/libexec/perf-core/tests/attr/test-record-no-buffering' running '/home/acme/libexec/perf-core/tests/attr/test-record-raw' running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-2' running '/home/acme/libexec/perf-core/tests/attr/test-record-count' running '/home/acme/libexec/perf-core/tests/attr/test-record-data' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any' running '/home/acme/libexec/perf-core/tests/attr/test-stat-group' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-any' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-any' running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-default' running '/home/acme/libexec/perf-core/tests/attr/test-record-no-samples' running '/home/acme/libexec/perf-core/tests/attr/test-stat-C0' running '/home/acme/libexec/perf-core/tests/attr/test-record-no-inherit' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-ind_call' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-ind_call' running '/home/acme/libexec/perf-core/tests/attr/test-record-basic' running '/home/acme/libexec/perf-core/tests/attr/test-record-group1' running '/home/acme/libexec/perf-core/tests/attr/test-record-pfm-period' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-pfm-period' running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-1' running '/home/acme/libexec/perf-core/tests/attr/test-stat-no-inherit' running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-hv' unsupp '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-hv' running '/home/acme/libexec/perf-core/tests/attr/test-record-group' test child finished with 0 ---- end ---- Setup struct perf_event_attr: Ok 49: Synthesize attr update : --- start --- test child forked, pid 2171004 test child finished with 0 ---- end ---- Synthesize attr update: Ok # Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Ian Rogers Cc: Jiri Olsa Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200827193201.GB127372@krava Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/python.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/perf/util/python.c') diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 75a9b1d62bba..74f85948d101 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -17,7 +17,7 @@ #include "mmap.h" #include "util/env.h" #include -#include "../perf-sys.h" +#include "util.h" #if PY_MAJOR_VERSION < 3 #define _PyUnicode_FromString(arg) \ -- cgit v1.2.3 From b214ba8c4275d66029ad34ad222326dca43e7e26 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 24 Sep 2020 21:44:53 +0900 Subject: perf tools: Copy metric events properly when expand cgroups The metricgroup__copy_metric_events() is to handle metrics events when expanding event for cgroups. As the metric events keep pointers to evsel, it should be refreshed when events are cloned during the operation. The perf_stat__collect_metric_expr() is also called in case an event has a metric directly. During the copy, it references evsel by index as the evlist now has cloned evsels for the given cgroup. Also kernel test robot found an issue in the python module import so add empty implementations of those two functions to fix it. Reported-by: kernel test robot Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ian Rogers Cc: John Garry Cc: Kajol Jain Cc: Mark Rutland Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200924124455.336326-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 3 +- tools/perf/util/cgroup.c | 23 +++++++++++- tools/perf/util/cgroup.h | 4 +- tools/perf/util/evlist.c | 11 ++++++ tools/perf/util/evlist.h | 1 + tools/perf/util/metricgroup.c | 85 +++++++++++++++++++++++++++++++++++++++++++ tools/perf/util/metricgroup.h | 6 +++ tools/perf/util/python.c | 19 ++++++++++ 8 files changed, 149 insertions(+), 3 deletions(-) (limited to 'tools/perf/util/python.c') diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 0c9e21a29795..2751699a8969 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -2234,7 +2234,8 @@ int cmd_stat(int argc, const char **argv) goto out; } - if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list) < 0) + if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, + &stat_config.metric_events) < 0) goto out; } diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index 8b6a4fa49082..6e64c908fa71 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -3,6 +3,9 @@ #include "evsel.h" #include "cgroup.h" #include "evlist.h" +#include "rblist.h" +#include "metricgroup.h" +#include "stat.h" #include #include #include @@ -193,10 +196,12 @@ int parse_cgroups(const struct option *opt, const char *str, return 0; } -int evlist__expand_cgroup(struct evlist *evlist, const char *str) +int evlist__expand_cgroup(struct evlist *evlist, const char *str, + struct rblist *metric_events) { struct evlist *orig_list, *tmp_list; struct evsel *pos, *evsel, *leader; + struct rblist orig_metric_events; struct cgroup *cgrp = NULL; const char *p, *e, *eos = str + strlen(str); int ret = -1; @@ -217,6 +222,13 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str) perf_evlist__splice_list_tail(orig_list, &evlist->core.entries); evlist->core.nr_entries = 0; + if (metric_events) { + orig_metric_events = *metric_events; + rblist__init(metric_events); + } else { + rblist__init(&orig_metric_events); + } + for (;;) { p = strchr(str, ','); e = p ? p : eos; @@ -255,6 +267,14 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str) cgroup__put(cgrp); 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) + break; + } + perf_evlist__splice_list_tail(evlist, &tmp_list->core.entries); tmp_list->core.nr_entries = 0; @@ -268,6 +288,7 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str) out_err: evlist__delete(orig_list); evlist__delete(tmp_list); + rblist__exit(&orig_metric_events); return ret; } diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h index 32893018296f..eea6df8ee373 100644 --- a/tools/perf/util/cgroup.h +++ b/tools/perf/util/cgroup.h @@ -22,9 +22,11 @@ struct cgroup *cgroup__get(struct cgroup *cgroup); void cgroup__put(struct cgroup *cgroup); struct evlist; +struct rblist; struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name); -int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups); +int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups, + struct rblist *metric_events); void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup); diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index e971daf946d0..8bdf3d2c907c 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1969,3 +1969,14 @@ int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd) return err; } + +struct evsel *evlist__find_evsel(struct evlist *evlist, int idx) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->idx == idx) + return evsel; + } + return NULL; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index bc38a53f6a1a..e1a450322bc5 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -386,4 +386,5 @@ int evlist__ctlfd_ack(struct evlist *evlist); #define EVLIST_ENABLED_MSG "Events enabled\n" #define EVLIST_DISABLED_MSG "Events disabled\n" +struct evsel *evlist__find_evsel(struct evlist *evlist, int idx); #endif /* __PERF_EVLIST_H */ diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 941702cb6a79..55ea514ac0ce 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -24,6 +24,7 @@ #include #include "util.h" #include +#include "cgroup.h" struct metric_event *metricgroup__lookup(struct rblist *metric_events, struct evsel *evsel, @@ -1120,3 +1121,87 @@ bool metricgroup__has_metric(const char *metric) } return false; } + +int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp, + struct rblist *new_metric_events, + struct rblist *old_metric_events) +{ + unsigned i; + + for (i = 0; i < rblist__nr_entries(old_metric_events); i++) { + struct rb_node *nd; + struct metric_event *old_me, *new_me; + struct metric_expr *old_expr, *new_expr; + struct evsel *evsel; + size_t alloc_size; + int idx, nr; + + nd = rblist__entry(old_metric_events, i); + old_me = container_of(nd, struct metric_event, nd); + + evsel = evlist__find_evsel(evlist, old_me->evsel->idx); + if (!evsel) + return -EINVAL; + new_me = metricgroup__lookup(new_metric_events, evsel, true); + if (!new_me) + return -ENOMEM; + + pr_debug("copying metric event for cgroup '%s': %s (idx=%d)\n", + cgrp ? cgrp->name : "root", evsel->name, evsel->idx); + + list_for_each_entry(old_expr, &old_me->head, nd) { + new_expr = malloc(sizeof(*new_expr)); + if (!new_expr) + return -ENOMEM; + + new_expr->metric_expr = old_expr->metric_expr; + new_expr->metric_name = old_expr->metric_name; + new_expr->metric_unit = old_expr->metric_unit; + new_expr->runtime = old_expr->runtime; + + if (old_expr->metric_refs) { + /* calculate number of metric_events */ + for (nr = 0; old_expr->metric_refs[nr].metric_name; nr++) + continue; + alloc_size = sizeof(*new_expr->metric_refs); + new_expr->metric_refs = calloc(nr + 1, alloc_size); + if (!new_expr->metric_refs) { + free(new_expr); + return -ENOMEM; + } + + memcpy(new_expr->metric_refs, old_expr->metric_refs, + nr * alloc_size); + } else { + new_expr->metric_refs = NULL; + } + + /* calculate number of metric_events */ + for (nr = 0; old_expr->metric_events[nr]; nr++) + continue; + alloc_size = sizeof(*new_expr->metric_events); + new_expr->metric_events = calloc(nr + 1, alloc_size); + if (!new_expr->metric_events) { + free(new_expr->metric_refs); + free(new_expr); + return -ENOMEM; + } + + /* copy evsel in the same position */ + for (idx = 0; idx < nr; idx++) { + evsel = old_expr->metric_events[idx]; + evsel = evlist__find_evsel(evlist, evsel->idx); + if (evsel == NULL) { + free(new_expr->metric_events); + free(new_expr->metric_refs); + free(new_expr); + return -EINVAL; + } + new_expr->metric_events[idx] = evsel; + } + + list_add(&new_expr->nd, &new_me->head); + } + } + return 0; +} diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h index 491a5d78252d..ed1b9392e624 100644 --- a/tools/perf/util/metricgroup.h +++ b/tools/perf/util/metricgroup.h @@ -7,11 +7,13 @@ #include #include "pmu-events/pmu-events.h" +struct evlist; struct evsel; struct evlist; struct option; struct rblist; struct pmu_events_map; +struct cgroup; struct metric_event { struct rb_node nd; @@ -55,4 +57,8 @@ void metricgroup__print(bool metrics, bool groups, char *filter, bool metricgroup__has_metric(const char *metric); int arch_get_runtimeparam(struct pmu_event *pe __maybe_unused); void metricgroup__rblist_exit(struct rblist *metric_events); + +int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp, + struct rblist *new_metric_events, + struct rblist *old_metric_events); #endif diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 74f85948d101..ae8edde7c50e 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -15,6 +15,8 @@ #include "thread_map.h" #include "trace-event.h" #include "mmap.h" +#include "stat.h" +#include "metricgroup.h" #include "util/env.h" #include #include "util.h" @@ -60,6 +62,23 @@ int parse_callchain_record(const char *arg __maybe_unused, */ struct perf_env perf_env; +/* + * Add this one here not to drag util/stat-shadow.c + */ +void perf_stat__collect_metric_expr(struct evlist *evsel_list) +{ +} + +/* + * Add this one here not to drag util/metricgroup.c + */ +int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp, + struct rblist *new_metric_events, + struct rblist *old_metric_events) +{ + return 0; +} + /* * Support debug printing even though util/debug.c is not linked. That means * implementing 'verbose' and 'eprintf'. -- cgit v1.2.3