forked from Minki/linux
perf evsel: Introduce config attr method
Out of the code in 'perf record', so that we can share option parsing, etc. Eventually will be used by 'perf top', but first 'trace' will use it. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-hzjqsgnte1esk90ytq0ap98v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
parent
a8c9ae18d8
commit
0f82ebc452
@ -35,32 +35,24 @@ enum write_mode_t {
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WRITE_APPEND
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};
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static u64 user_interval = ULLONG_MAX;
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static u64 default_interval = 0;
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static struct perf_record_opts record_opts = {
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.target_pid = -1,
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.target_tid = -1,
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.user_freq = UINT_MAX,
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.user_interval = ULLONG_MAX,
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.freq = 1000,
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.sample_id_all_avail = true,
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};
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static unsigned int page_size;
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static unsigned int mmap_pages = UINT_MAX;
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static unsigned int user_freq = UINT_MAX;
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static int freq = 1000;
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static int output;
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static int pipe_output = 0;
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static const char *output_name = NULL;
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static bool group = false;
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static int realtime_prio = 0;
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static bool nodelay = false;
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static bool raw_samples = false;
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static bool sample_id_all_avail = true;
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static bool system_wide = false;
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static pid_t target_pid = -1;
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static pid_t target_tid = -1;
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static pid_t child_pid = -1;
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static bool no_inherit = false;
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static enum write_mode_t write_mode = WRITE_FORCE;
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static bool call_graph = false;
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static bool inherit_stat = false;
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static bool no_samples = false;
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static bool sample_address = false;
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static bool sample_time = false;
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static bool no_buildid = false;
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static bool no_buildid_cache = false;
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static struct perf_evlist *evsel_list;
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@ -72,7 +64,6 @@ static int file_new = 1;
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static off_t post_processing_offset;
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static struct perf_session *session;
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static const char *cpu_list;
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static const char *progname;
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static void advance_output(size_t size)
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@ -169,78 +160,6 @@ static void sig_atexit(void)
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kill(getpid(), signr);
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}
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static void config_attr(struct perf_evsel *evsel, struct perf_evlist *evlist)
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{
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struct perf_event_attr *attr = &evsel->attr;
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int track = !evsel->idx; /* only the first counter needs these */
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attr->disabled = 1;
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attr->inherit = !no_inherit;
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attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
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PERF_FORMAT_TOTAL_TIME_RUNNING |
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PERF_FORMAT_ID;
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attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID;
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if (evlist->nr_entries > 1)
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attr->sample_type |= PERF_SAMPLE_ID;
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/*
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* We default some events to a 1 default interval. But keep
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* it a weak assumption overridable by the user.
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*/
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if (!attr->sample_period || (user_freq != UINT_MAX &&
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user_interval != ULLONG_MAX)) {
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if (freq) {
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attr->sample_type |= PERF_SAMPLE_PERIOD;
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attr->freq = 1;
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attr->sample_freq = freq;
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} else {
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attr->sample_period = default_interval;
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}
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}
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if (no_samples)
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attr->sample_freq = 0;
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if (inherit_stat)
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attr->inherit_stat = 1;
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if (sample_address) {
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attr->sample_type |= PERF_SAMPLE_ADDR;
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attr->mmap_data = track;
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}
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if (call_graph)
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attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
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if (system_wide)
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attr->sample_type |= PERF_SAMPLE_CPU;
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if (sample_id_all_avail &&
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(sample_time || system_wide || !no_inherit || cpu_list))
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attr->sample_type |= PERF_SAMPLE_TIME;
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if (raw_samples) {
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attr->sample_type |= PERF_SAMPLE_TIME;
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attr->sample_type |= PERF_SAMPLE_RAW;
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attr->sample_type |= PERF_SAMPLE_CPU;
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}
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if (nodelay) {
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attr->watermark = 0;
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attr->wakeup_events = 1;
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}
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attr->mmap = track;
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attr->comm = track;
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if (target_pid == -1 && target_tid == -1 && !system_wide) {
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attr->disabled = 1;
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attr->enable_on_exec = 1;
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}
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}
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static bool perf_evlist__equal(struct perf_evlist *evlist,
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struct perf_evlist *other)
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{
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@ -264,11 +183,10 @@ static void open_counters(struct perf_evlist *evlist)
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{
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struct perf_evsel *pos, *first;
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if (evlist->cpus->map[0] < 0)
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no_inherit = true;
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first = list_entry(evlist->entries.next, struct perf_evsel, node);
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perf_evlist__config_attrs(evlist, &record_opts);
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list_for_each_entry(pos, &evlist->entries, node) {
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struct perf_event_attr *attr = &pos->attr;
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struct xyarray *group_fd = NULL;
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@ -288,10 +206,8 @@ static void open_counters(struct perf_evlist *evlist)
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if (group && pos != first)
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group_fd = first->fd;
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config_attr(pos, evlist);
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retry_sample_id:
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attr->sample_id_all = sample_id_all_avail ? 1 : 0;
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attr->sample_id_all = record_opts.sample_id_all_avail ? 1 : 0;
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try_again:
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if (perf_evsel__open(pos, evlist->cpus, evlist->threads, group,
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group_fd) < 0) {
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@ -300,15 +216,15 @@ try_again:
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if (err == EPERM || err == EACCES) {
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ui__error_paranoid();
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exit(EXIT_FAILURE);
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} else if (err == ENODEV && cpu_list) {
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} else if (err == ENODEV && record_opts.cpu_list) {
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die("No such device - did you specify"
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" an out-of-range profile CPU?\n");
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} else if (err == EINVAL && sample_id_all_avail) {
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} else if (err == EINVAL && record_opts.sample_id_all_avail) {
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/*
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* Old kernel, no attr->sample_id_type_all field
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*/
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sample_id_all_avail = false;
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if (!sample_time && !raw_samples && !time_needed)
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record_opts.sample_id_all_avail = false;
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if (!record_opts.sample_time && !record_opts.raw_samples && !time_needed)
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attr->sample_type &= ~PERF_SAMPLE_TIME;
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goto retry_sample_id;
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@ -482,13 +398,13 @@ static int __cmd_record(int argc, const char **argv)
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if (!output_name) {
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if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode))
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pipe_output = 1;
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pipe_output = true;
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else
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output_name = "perf.data";
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}
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if (output_name) {
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if (!strcmp(output_name, "-"))
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pipe_output = 1;
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pipe_output = true;
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else if (!stat(output_name, &st) && st.st_size) {
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if (write_mode == WRITE_FORCE) {
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char oldname[PATH_MAX];
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@ -592,7 +508,7 @@ static int __cmd_record(int argc, const char **argv)
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exit(-1);
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}
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if (!system_wide && target_tid == -1 && target_pid == -1)
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if (!record_opts.system_wide && record_opts.target_tid == -1 && record_opts.target_pid == -1)
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evsel_list->threads->map[0] = child_pid;
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close(child_ready_pipe[1]);
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@ -689,7 +605,7 @@ static int __cmd_record(int argc, const char **argv)
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perf_session__process_machines(session,
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perf_event__synthesize_guest_os);
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if (!system_wide)
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if (!record_opts.system_wide)
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perf_event__synthesize_thread_map(evsel_list->threads,
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process_synthesized_event,
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session);
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@ -766,44 +682,44 @@ const struct option record_options[] = {
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parse_events_option),
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OPT_CALLBACK(0, "filter", &evsel_list, "filter",
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"event filter", parse_filter),
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OPT_INTEGER('p', "pid", &target_pid,
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OPT_INTEGER('p', "pid", &record_opts.target_pid,
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"record events on existing process id"),
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OPT_INTEGER('t', "tid", &target_tid,
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OPT_INTEGER('t', "tid", &record_opts.target_tid,
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"record events on existing thread id"),
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OPT_INTEGER('r', "realtime", &realtime_prio,
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"collect data with this RT SCHED_FIFO priority"),
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OPT_BOOLEAN('D', "no-delay", &nodelay,
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OPT_BOOLEAN('D', "no-delay", &record_opts.no_delay,
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"collect data without buffering"),
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OPT_BOOLEAN('R', "raw-samples", &raw_samples,
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OPT_BOOLEAN('R', "raw-samples", &record_opts.raw_samples,
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"collect raw sample records from all opened counters"),
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OPT_BOOLEAN('a', "all-cpus", &system_wide,
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OPT_BOOLEAN('a', "all-cpus", &record_opts.system_wide,
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"system-wide collection from all CPUs"),
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OPT_BOOLEAN('A', "append", &append_file,
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"append to the output file to do incremental profiling"),
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OPT_STRING('C', "cpu", &cpu_list, "cpu",
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OPT_STRING('C', "cpu", &record_opts.cpu_list, "cpu",
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"list of cpus to monitor"),
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OPT_BOOLEAN('f', "force", &force,
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"overwrite existing data file (deprecated)"),
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OPT_U64('c', "count", &user_interval, "event period to sample"),
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OPT_U64('c', "count", &record_opts.user_interval, "event period to sample"),
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OPT_STRING('o', "output", &output_name, "file",
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"output file name"),
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OPT_BOOLEAN('i', "no-inherit", &no_inherit,
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OPT_BOOLEAN('i', "no-inherit", &record_opts.no_inherit,
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"child tasks do not inherit counters"),
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OPT_UINTEGER('F', "freq", &user_freq, "profile at this frequency"),
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OPT_UINTEGER('F', "freq", &record_opts.user_freq, "profile at this frequency"),
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OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"),
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OPT_BOOLEAN(0, "group", &group,
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"put the counters into a counter group"),
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OPT_BOOLEAN('g', "call-graph", &call_graph,
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OPT_BOOLEAN('g', "call-graph", &record_opts.call_graph,
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"do call-graph (stack chain/backtrace) recording"),
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OPT_INCR('v', "verbose", &verbose,
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"be more verbose (show counter open errors, etc)"),
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OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"),
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OPT_BOOLEAN('s', "stat", &inherit_stat,
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OPT_BOOLEAN('s', "stat", &record_opts.inherit_stat,
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"per thread counts"),
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OPT_BOOLEAN('d', "data", &sample_address,
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OPT_BOOLEAN('d', "data", &record_opts.sample_address,
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"Sample addresses"),
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OPT_BOOLEAN('T', "timestamp", &sample_time, "Sample timestamps"),
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OPT_BOOLEAN('n', "no-samples", &no_samples,
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OPT_BOOLEAN('T', "timestamp", &record_opts.sample_time, "Sample timestamps"),
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OPT_BOOLEAN('n', "no-samples", &record_opts.no_samples,
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"don't sample"),
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OPT_BOOLEAN('N', "no-buildid-cache", &no_buildid_cache,
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"do not update the buildid cache"),
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@ -828,8 +744,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
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argc = parse_options(argc, argv, record_options, record_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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if (!argc && target_pid == -1 && target_tid == -1 &&
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!system_wide && !cpu_list)
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if (!argc && record_opts.target_pid == -1 && record_opts.target_tid == -1 &&
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!record_opts.system_wide && !record_opts.cpu_list)
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usage_with_options(record_usage, record_options);
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if (force && append_file) {
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@ -842,7 +758,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
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write_mode = WRITE_FORCE;
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}
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if (nr_cgroups && !system_wide) {
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if (nr_cgroups && !record_opts.system_wide) {
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fprintf(stderr, "cgroup monitoring only available in"
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" system-wide mode\n");
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usage_with_options(record_usage, record_options);
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@ -869,11 +785,11 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
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goto out_symbol_exit;
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}
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if (target_pid != -1)
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target_tid = target_pid;
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if (record_opts.target_pid != -1)
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record_opts.target_tid = record_opts.target_pid;
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if (perf_evlist__create_maps(evsel_list, target_pid,
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target_tid, cpu_list) < 0)
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if (perf_evlist__create_maps(evsel_list, record_opts.target_pid,
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record_opts.target_tid, record_opts.cpu_list) < 0)
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usage_with_options(record_usage, record_options);
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list_for_each_entry(pos, &evsel_list->entries, node) {
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@ -887,18 +803,18 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
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if (perf_evlist__alloc_pollfd(evsel_list) < 0)
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goto out_free_fd;
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if (user_interval != ULLONG_MAX)
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default_interval = user_interval;
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if (user_freq != UINT_MAX)
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freq = user_freq;
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if (record_opts.user_interval != ULLONG_MAX)
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record_opts.default_interval = record_opts.user_interval;
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if (record_opts.user_freq != UINT_MAX)
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record_opts.freq = record_opts.user_freq;
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/*
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* User specified count overrides default frequency.
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*/
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if (default_interval)
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freq = 0;
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else if (freq) {
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default_interval = freq;
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if (record_opts.default_interval)
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record_opts.freq = 0;
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else if (record_opts.freq) {
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record_opts.default_interval = record_opts.freq;
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} else {
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fprintf(stderr, "frequency and count are zero, aborting\n");
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err = -EINVAL;
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@ -185,4 +185,24 @@ extern const char perf_version_string[];
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void pthread__unblock_sigwinch(void);
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struct perf_record_opts {
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pid_t target_pid;
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pid_t target_tid;
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bool call_graph;
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bool inherit_stat;
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bool no_delay;
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bool no_inherit;
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bool no_samples;
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bool raw_samples;
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bool sample_address;
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bool sample_time;
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bool sample_id_all_avail;
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bool system_wide;
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unsigned int freq;
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unsigned int user_freq;
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u64 default_interval;
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u64 user_interval;
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const char *cpu_list;
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};
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#endif
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@ -46,6 +46,22 @@ struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
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return evlist;
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}
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void perf_evlist__config_attrs(struct perf_evlist *evlist,
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struct perf_record_opts *opts)
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{
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struct perf_evsel *evsel;
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if (evlist->cpus->map[0] < 0)
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opts->no_inherit = true;
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list_for_each_entry(evsel, &evlist->entries, node) {
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perf_evsel__config(evsel, opts);
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if (evlist->nr_entries > 1)
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evsel->attr.sample_type |= PERF_SAMPLE_ID;
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}
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}
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static void perf_evlist__purge(struct perf_evlist *evlist)
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{
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struct perf_evsel *pos, *n;
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@ -10,6 +10,7 @@
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struct pollfd;
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struct thread_map;
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struct cpu_map;
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struct perf_record_opts;
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#define PERF_EVLIST__HLIST_BITS 8
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#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
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@ -64,6 +65,9 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
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int perf_evlist__open(struct perf_evlist *evlist, bool group);
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void perf_evlist__config_attrs(struct perf_evlist *evlist,
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struct perf_record_opts *opts);
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int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
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int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
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void perf_evlist__munmap(struct perf_evlist *evlist);
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@ -53,6 +53,76 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx)
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return evsel;
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}
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void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts)
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{
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struct perf_event_attr *attr = &evsel->attr;
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int track = !evsel->idx; /* only the first counter needs these */
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attr->sample_id_all = opts->sample_id_all_avail ? 1 : 0;
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attr->inherit = !opts->no_inherit;
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attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
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PERF_FORMAT_TOTAL_TIME_RUNNING |
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PERF_FORMAT_ID;
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|
||||
attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID;
|
||||
|
||||
/*
|
||||
* We default some events to a 1 default interval. But keep
|
||||
* it a weak assumption overridable by the user.
|
||||
*/
|
||||
if (!attr->sample_period || (opts->user_freq != UINT_MAX &&
|
||||
opts->user_interval != ULLONG_MAX)) {
|
||||
if (opts->freq) {
|
||||
attr->sample_type |= PERF_SAMPLE_PERIOD;
|
||||
attr->freq = 1;
|
||||
attr->sample_freq = opts->freq;
|
||||
} else {
|
||||
attr->sample_period = opts->default_interval;
|
||||
}
|
||||
}
|
||||
|
||||
if (opts->no_samples)
|
||||
attr->sample_freq = 0;
|
||||
|
||||
if (opts->inherit_stat)
|
||||
attr->inherit_stat = 1;
|
||||
|
||||
if (opts->sample_address) {
|
||||
attr->sample_type |= PERF_SAMPLE_ADDR;
|
||||
attr->mmap_data = track;
|
||||
}
|
||||
|
||||
if (opts->call_graph)
|
||||
attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
|
||||
|
||||
if (opts->system_wide)
|
||||
attr->sample_type |= PERF_SAMPLE_CPU;
|
||||
|
||||
if (opts->sample_id_all_avail &&
|
||||
(opts->sample_time || opts->system_wide ||
|
||||
!opts->no_inherit || opts->cpu_list))
|
||||
attr->sample_type |= PERF_SAMPLE_TIME;
|
||||
|
||||
if (opts->raw_samples) {
|
||||
attr->sample_type |= PERF_SAMPLE_TIME;
|
||||
attr->sample_type |= PERF_SAMPLE_RAW;
|
||||
attr->sample_type |= PERF_SAMPLE_CPU;
|
||||
}
|
||||
|
||||
if (opts->no_delay) {
|
||||
attr->watermark = 0;
|
||||
attr->wakeup_events = 1;
|
||||
}
|
||||
|
||||
attr->mmap = track;
|
||||
attr->comm = track;
|
||||
|
||||
if (opts->target_pid == -1 && opts->target_tid == -1 && !opts->system_wide) {
|
||||
attr->disabled = 1;
|
||||
attr->enable_on_exec = 1;
|
||||
}
|
||||
}
|
||||
|
||||
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
|
||||
{
|
||||
int cpu, thread;
|
||||
|
||||
@ -67,6 +67,7 @@ struct perf_evsel {
|
||||
struct cpu_map;
|
||||
struct thread_map;
|
||||
struct perf_evlist;
|
||||
struct perf_record_opts;
|
||||
|
||||
struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
|
||||
void perf_evsel__init(struct perf_evsel *evsel,
|
||||
@ -74,6 +75,9 @@ void perf_evsel__init(struct perf_evsel *evsel,
|
||||
void perf_evsel__exit(struct perf_evsel *evsel);
|
||||
void perf_evsel__delete(struct perf_evsel *evsel);
|
||||
|
||||
void perf_evsel__config(struct perf_evsel *evsel,
|
||||
struct perf_record_opts *opts);
|
||||
|
||||
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
|
||||
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
|
||||
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user