#include "util/affinity.h"
#include "util/pfm.h"
#include "util/bpf_counter.h"
+#include "util/iostat.h"
#include "asm/bug.h"
#include <linux/time64.h>
};
static struct evlist *evsel_list;
+static bool all_counters_use_bpf = true;
static struct target target = {
.uid = UINT_MAX,
.walltime_nsecs_stats = &walltime_nsecs_stats,
.big_num = true,
.ctl_fd = -1,
- .ctl_fd_ack = -1
+ .ctl_fd_ack = -1,
+ .iostat_run = false,
};
static bool cpus_map_matched(struct evsel *a, struct evsel *b)
struct affinity affinity;
int i, ncpus, cpu;
+ if (all_counters_use_bpf)
+ return 0;
+
if (affinity__setup(&affinity) < 0)
return -1;
evlist__for_each_entry(evsel_list, counter) {
if (evsel__cpu_iter_skip(counter, cpu))
continue;
+ if (evsel__is_bpf(counter))
+ continue;
if (!counter->err) {
counter->err = read_counter_cpu(counter, rs,
counter->cpu_iter - 1);
int err;
evlist__for_each_entry(evsel_list, counter) {
+ if (!evsel__is_bpf(counter))
+ continue;
+
err = bpf_counter__read(counter);
if (err)
return err;
static void read_counters(struct timespec *rs)
{
struct evsel *counter;
- int err;
if (!stat_config.stop_read_counter) {
- if (target__has_bpf(&target))
- err = read_bpf_map_counters();
- else
- err = read_affinity_counters(rs);
- if (err < 0)
+ if (read_bpf_map_counters() ||
+ read_affinity_counters(rs))
return;
}
struct evsel *evsel;
int err;
- if (target__has_bpf(&target)) {
- evlist__for_each_entry(evsel_list, evsel) {
- err = bpf_counter__enable(evsel);
- if (err)
- return err;
- }
+ evlist__for_each_entry(evsel_list, evsel) {
+ if (!evsel__is_bpf(evsel))
+ continue;
+
+ err = bpf_counter__enable(evsel);
+ if (err)
+ return err;
}
if (stat_config.initial_delay < 0) {
if (affinity__setup(&affinity) < 0)
return -1;
- if (target__has_bpf(&target)) {
- evlist__for_each_entry(evsel_list, counter) {
- if (bpf_counter__load(counter, &target))
- return -1;
- }
+ evlist__for_each_entry(evsel_list, counter) {
+ if (bpf_counter__load(counter, &target))
+ return -1;
+ if (!evsel__is_bpf(counter))
+ all_counters_use_bpf = false;
}
evlist__for_each_cpu (evsel_list, i, cpu) {
+ /*
+ * bperf calls evsel__open_per_cpu() in bperf__load(), so
+ * no need to call it again here.
+ */
+ if (target.use_bpf)
+ break;
affinity__set(&affinity, cpu);
evlist__for_each_entry(evsel_list, counter) {
continue;
if (counter->reset_group || counter->errored)
continue;
+ if (evsel__is_bpf(counter))
+ continue;
try_again:
if (create_perf_stat_counter(counter, &stat_config, &target,
counter->cpu_iter - 1) < 0) {
/*
* Enable counters and exec the command:
*/
- t0 = rdclock();
- clock_gettime(CLOCK_MONOTONIC, &ref_time);
-
if (forks) {
evlist__start_workload(evsel_list);
err = enable_counters();
if (err)
return -1;
+ t0 = rdclock();
+ clock_gettime(CLOCK_MONOTONIC, &ref_time);
+
if (interval || timeout || evlist__ctlfd_initialized(evsel_list))
status = dispatch_events(forks, timeout, interval, ×);
if (child_pid != -1) {
err = enable_counters();
if (err)
return -1;
+
+ t0 = rdclock();
+ clock_gettime(CLOCK_MONOTONIC, &ref_time);
+
status = dispatch_events(forks, timeout, interval, ×);
}
stat_config.big_num = (set != 0);
}
+void perf_stat__set_no_csv_summary(int set)
+{
+ stat_config.no_csv_summary = (set != 0);
+}
+
static int stat__set_big_num(const struct option *opt __maybe_unused,
const char *s __maybe_unused, int unset)
{
#ifdef HAVE_BPF_SKEL
OPT_STRING('b', "bpf-prog", &target.bpf_str, "bpf-prog-id",
"stat events on existing bpf program id"),
+ OPT_BOOLEAN(0, "bpf-counters", &target.use_bpf,
+ "use bpf program to count events"),
+ OPT_STRING(0, "bpf-attr-map", &target.attr_map, "attr-map-path",
+ "path to perf_event_attr map"),
#endif
OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
"system-wide collection from all CPUs"),
"threads of same physical core"),
OPT_BOOLEAN(0, "summary", &stat_config.summary,
"print summary for interval mode"),
+ OPT_BOOLEAN(0, "no-csv-summary", &stat_config.no_csv_summary,
+ "don't print 'summary' for CSV summary output"),
OPT_BOOLEAN(0, "quiet", &stat_config.quiet,
"don't print output (useful with record)"),
#ifdef HAVE_LIBPFM
"\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_CALLBACK_OPTARG(0, "iostat", &evsel_list, &stat_config, "default",
+ "measure I/O performance metrics provided by arch/platform",
+ iostat_parse),
OPT_END()
};
bzero(&errinfo, sizeof(errinfo));
if (transaction_run) {
/* Handle -T as -M transaction. Once platform specific metrics
- * support has been added to the json files, all archictures
+ * support has been added to the json files, all architectures
* will use this approach. To determine transaction support
* on an architecture test for such a metric name.
*/
goto out;
}
+ if (stat_config.iostat_run) {
+ status = iostat_prepare(evsel_list, &stat_config);
+ if (status)
+ goto out;
+ if (iostat_mode == IOSTAT_LIST) {
+ iostat_list(evsel_list, &stat_config);
+ goto out;
+ } else if (verbose)
+ iostat_list(evsel_list, &stat_config);
+ }
+
if (add_default_attributes())
goto out;
/*
* We synthesize the kernel mmap record just so that older tools
* don't emit warnings about not being able to resolve symbols
- * due to /proc/sys/kernel/kptr_restrict settings and instear provide
+ * due to /proc/sys/kernel/kptr_restrict settings and instead provide
* a saner message about no samples being in the perf.data file.
*
* This also serves to suppress a warning about f_header.data.size == 0
perf_stat__exit_aggr_mode();
evlist__free_stats(evsel_list);
out:
+ if (stat_config.iostat_run)
+ iostat_release(evsel_list);
+
zfree(&stat_config.walltime_run);
if (smi_cost && smi_reset)
projects / linux-2.6-microblaze.git / blobdiff