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-rw-r--r--tools/perf/builtin-stat.c136
1 files changed, 63 insertions, 73 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index fddc97cac984..b01af171d94f 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -56,7 +56,7 @@
#include "util/cpumap.h"
#include "util/thread_map.h"
#include "util/counts.h"
-#include "util/group.h"
+#include "util/topdown.h"
#include "util/session.h"
#include "util/tool.h"
#include "util/string2.h"
@@ -128,6 +128,15 @@ static const char * topdown_attrs[] = {
NULL,
};
+static const char *topdown_metric_attrs[] = {
+ "slots",
+ "topdown-retiring",
+ "topdown-bad-spec",
+ "topdown-fe-bound",
+ "topdown-be-bound",
+ NULL,
+};
+
static const char *smi_cost_attrs = {
"{"
"msr/aperf/,"
@@ -578,6 +587,7 @@ static void process_evlist(struct evlist *evlist, unsigned int interval)
process_interval();
pr_info(EVLIST_DISABLED_MSG);
break;
+ case EVLIST_CTL_CMD_SNAPSHOT:
case EVLIST_CTL_CMD_ACK:
case EVLIST_CTL_CMD_UNSUPPORTED:
default:
@@ -1045,27 +1055,20 @@ static int parse_control_option(const struct option *opt,
const char *str,
int unset __maybe_unused)
{
- char *comma = NULL, *endptr = NULL;
- struct perf_stat_config *config = (struct perf_stat_config *)opt->value;
-
- if (strncmp(str, "fd:", 3))
- return -EINVAL;
-
- config->ctl_fd = strtoul(&str[3], &endptr, 0);
- if (endptr == &str[3])
- return -EINVAL;
+ struct perf_stat_config *config = opt->value;
- comma = strchr(str, ',');
- if (comma) {
- if (endptr != comma)
- return -EINVAL;
+ return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack, &config->ctl_fd_close);
+}
- config->ctl_fd_ack = strtoul(comma + 1, &endptr, 0);
- if (endptr == comma + 1 || *endptr != '\0')
- return -EINVAL;
+static int parse_stat_cgroups(const struct option *opt,
+ const char *str, int unset)
+{
+ if (stat_config.cgroup_list) {
+ pr_err("--cgroup and --for-each-cgroup cannot be used together\n");
+ return -1;
}
- return 0;
+ return parse_cgroups(opt, str, unset);
}
static struct option stat_options[] = {
@@ -1111,7 +1114,9 @@ static struct option stat_options[] = {
OPT_STRING('x', "field-separator", &stat_config.csv_sep, "separator",
"print counts with custom separator"),
OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
- "monitor event in cgroup name only", parse_cgroups),
+ "monitor event in cgroup name only", parse_stat_cgroups),
+ OPT_STRING(0, "for-each-cgroup", &stat_config.cgroup_list, "name",
+ "expand events for each cgroup"),
OPT_STRING('o', "output", &output_name, "file", "output file name"),
OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
OPT_INTEGER(0, "log-fd", &output_fd,
@@ -1171,9 +1176,10 @@ static struct option stat_options[] = {
"libpfm4 event selector. use 'perf list' to list available events",
parse_libpfm_events_option),
#endif
- OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd]",
+ OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd] or fifo:ctl-fifo[,ack-fifo]",
"Listen on ctl-fd descriptor for command to control measurement ('enable': enable events, 'disable': disable events).\n"
- "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.",
+ "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.\n"
+ "\t\t\t Alternatively, ctl-fifo / ack-fifo will be opened and used as ctl-fd / ack-fd.",
parse_control_option),
OPT_END()
};
@@ -1497,55 +1503,6 @@ static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
return 0;
}
-static int topdown_filter_events(const char **attr, char **str, bool use_group)
-{
- int off = 0;
- int i;
- int len = 0;
- char *s;
-
- for (i = 0; attr[i]; i++) {
- if (pmu_have_event("cpu", attr[i])) {
- len += strlen(attr[i]) + 1;
- attr[i - off] = attr[i];
- } else
- off++;
- }
- attr[i - off] = NULL;
-
- *str = malloc(len + 1 + 2);
- if (!*str)
- return -1;
- s = *str;
- if (i - off == 0) {
- *s = 0;
- return 0;
- }
- if (use_group)
- *s++ = '{';
- for (i = 0; attr[i]; i++) {
- strcpy(s, attr[i]);
- s += strlen(s);
- *s++ = ',';
- }
- if (use_group) {
- s[-1] = '}';
- *s = 0;
- } else
- s[-1] = 0;
- return 0;
-}
-
-__weak bool arch_topdown_check_group(bool *warn)
-{
- *warn = false;
- return false;
-}
-
-__weak void arch_topdown_group_warn(void)
-{
-}
-
/*
* Add default attributes, if there were no attributes specified or
* if -d/--detailed, -d -d or -d -d -d is used:
@@ -1742,6 +1699,24 @@ static int add_default_attributes(void)
char *str = NULL;
bool warn = false;
+ if (!force_metric_only)
+ stat_config.metric_only = true;
+
+ if (topdown_filter_events(topdown_metric_attrs, &str, 1) < 0) {
+ pr_err("Out of memory\n");
+ return -1;
+ }
+ if (topdown_metric_attrs[0] && str) {
+ if (!stat_config.interval && !stat_config.metric_only) {
+ fprintf(stat_config.output,
+ "Topdown accuracy may decrease when measuring long periods.\n"
+ "Please print the result regularly, e.g. -I1000\n");
+ }
+ goto setup_metrics;
+ }
+
+ zfree(&str);
+
if (stat_config.aggr_mode != AGGR_GLOBAL &&
stat_config.aggr_mode != AGGR_CORE) {
pr_err("top down event configuration requires --per-core mode\n");
@@ -1753,8 +1728,6 @@ static int add_default_attributes(void)
return -1;
}
- if (!force_metric_only)
- stat_config.metric_only = true;
if (topdown_filter_events(topdown_attrs, &str,
arch_topdown_check_group(&warn)) < 0) {
pr_err("Out of memory\n");
@@ -1763,6 +1736,7 @@ static int add_default_attributes(void)
if (topdown_attrs[0] && str) {
if (warn)
arch_topdown_group_warn();
+setup_metrics:
err = parse_events(evsel_list, str, &errinfo);
if (err) {
fprintf(stderr,
@@ -2063,8 +2037,10 @@ static void setup_system_wide(int forks)
struct evsel *counter;
evlist__for_each_entry(evsel_list, counter) {
- if (!counter->core.system_wide)
+ if (!counter->core.system_wide &&
+ strcmp(counter->name, "duration_time")) {
return;
+ }
}
if (evsel_list->core.nr_entries)
@@ -2250,6 +2226,19 @@ int cmd_stat(int argc, const char **argv)
if (add_default_attributes())
goto out;
+ if (stat_config.cgroup_list) {
+ if (nr_cgroups > 0) {
+ pr_err("--cgroup and --for-each-cgroup cannot be used together\n");
+ parse_options_usage(stat_usage, stat_options, "G", 1);
+ parse_options_usage(NULL, stat_options, "for-each-cgroup", 0);
+ goto out;
+ }
+
+ if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list,
+ &stat_config.metric_events, true) < 0)
+ goto out;
+ }
+
target__validate(&target);
if ((stat_config.aggr_mode == AGGR_THREAD) && (target.system_wide))
@@ -2416,6 +2405,7 @@ out:
metricgroup__rblist_exit(&stat_config.metric_events);
runtime_stat_delete(&stat_config);
+ evlist__close_control(stat_config.ctl_fd, stat_config.ctl_fd_ack, &stat_config.ctl_fd_close);
return status;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 10:07:01 +0000