pthread_mutex_unlock(¬es->lock);
+ /*
+ * This function is now called with he->hists->lock held.
+ * Release it before going to sleep.
+ */
+ pthread_mutex_unlock(&he->hists->lock);
+
if (err == -ERANGE && !he->ms.map->erange_warned)
ui__warn_map_erange(he->ms.map, sym, ip);
else if (err == -ENOMEM) {
sym->name);
sleep(1);
}
+
+ pthread_mutex_lock(&he->hists->lock);
}
static void perf_top__show_details(struct perf_top *top)
pthread_mutex_unlock(¬es->lock);
}
-static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
- struct addr_location *al,
- struct perf_sample *sample)
-{
- struct hist_entry *he;
-
- pthread_mutex_lock(&evsel->hists.lock);
- he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL,
- sample->period, sample->weight,
- sample->transaction);
- pthread_mutex_unlock(&evsel->hists.lock);
- if (he == NULL)
- return NULL;
-
- hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
- if (!he->filtered)
- evsel->hists.stats.nr_non_filtered_samples++;
-
- return he;
-}
-
static void perf_top__print_sym_table(struct perf_top *top)
{
char bf[160];
return;
}
+ if (top->zero) {
+ hists__delete_entries(&top->sym_evsel->hists);
+ } else {
+ hists__decay_entries(&top->sym_evsel->hists,
+ top->hide_user_symbols,
+ top->hide_kernel_symbols);
+ }
+
hists__collapse_resort(&top->sym_evsel->hists, NULL);
hists__output_resort(&top->sym_evsel->hists);
- hists__decay_entries(&top->sym_evsel->hists,
- top->hide_user_symbols,
- top->hide_kernel_symbols);
+
hists__output_recalc_col_len(&top->sym_evsel->hists,
top->print_entries - printed);
putchar('\n');
if (t->evlist->selected != NULL)
t->sym_evsel = t->evlist->selected;
+ if (t->zero) {
+ hists__delete_entries(&t->sym_evsel->hists);
+ } else {
+ hists__decay_entries(&t->sym_evsel->hists,
+ t->hide_user_symbols,
+ t->hide_kernel_symbols);
+ }
+
hists__collapse_resort(&t->sym_evsel->hists, NULL);
hists__output_resort(&t->sym_evsel->hists);
- hists__decay_entries(&t->sym_evsel->hists,
- t->hide_user_symbols,
- t->hide_kernel_symbols);
}
static void *display_thread_tui(void *arg)
return NULL;
}
+static void display_sig(int sig __maybe_unused)
+{
+ done = 1;
+}
+
+static void display_setup_sig(void)
+{
+ signal(SIGSEGV, display_sig);
+ signal(SIGFPE, display_sig);
+ signal(SIGINT, display_sig);
+ signal(SIGQUIT, display_sig);
+ signal(SIGTERM, display_sig);
+}
+
static void *display_thread(void *arg)
{
struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
- struct termios tc, save;
+ struct termios save;
struct perf_top *top = arg;
int delay_msecs, c;
- tcgetattr(0, &save);
- tc = save;
- tc.c_lflag &= ~(ICANON | ECHO);
- tc.c_cc[VMIN] = 0;
- tc.c_cc[VTIME] = 0;
-
+ display_setup_sig();
pthread__unblock_sigwinch();
repeat:
delay_msecs = top->delay_secs * 1000;
- tcsetattr(0, TCSANOW, &tc);
+ set_term_quiet_input(&save);
/* trash return*/
getc(stdin);
}
}
+ tcsetattr(0, TCSAFLUSH, &save);
return NULL;
}
-static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym)
+static int symbol_filter(struct map *map, struct symbol *sym)
{
const char *name = sym->name;
+ if (!map->dso->kernel)
+ return 0;
/*
* ppc64 uses function descriptors and appends a '.' to the
* start of every instruction address. Remove it.
return 0;
}
+static int hist_iter__top_callback(struct hist_entry_iter *iter,
+ struct addr_location *al, bool single,
+ void *arg)
+{
+ struct perf_top *top = arg;
+ struct hist_entry *he = iter->he;
+ struct perf_evsel *evsel = iter->evsel;
+
+ if (sort__has_sym && single) {
+ u64 ip = al->addr;
+
+ if (al->map)
+ ip = al->map->unmap_ip(al->map, ip);
+
+ perf_top__record_precise_ip(top, he, evsel->idx, ip);
+ }
+
+ return 0;
+}
+
static void perf_event__process_sample(struct perf_tool *tool,
const union perf_event *event,
struct perf_evsel *evsel,
struct machine *machine)
{
struct perf_top *top = container_of(tool, struct perf_top, tool);
- struct symbol *parent = NULL;
- u64 ip = sample->ip;
struct addr_location al;
int err;
}
if (al.sym == NULL || !al.sym->ignore) {
- struct hist_entry *he;
+ struct hist_entry_iter iter = {
+ .add_entry_cb = hist_iter__top_callback,
+ };
- err = sample__resolve_callchain(sample, &parent, evsel, &al,
- top->max_stack);
- if (err)
- return;
+ if (symbol_conf.cumulate_callchain)
+ iter.ops = &hist_iter_cumulative;
+ else
+ iter.ops = &hist_iter_normal;
- he = perf_evsel__add_hist_entry(evsel, &al, sample);
- if (he == NULL) {
- pr_err("Problem incrementing symbol period, skipping event\n");
- return;
- }
+ pthread_mutex_lock(&evsel->hists.lock);
- err = hist_entry__append_callchain(he, sample);
- if (err)
- return;
+ err = hist_entry_iter__add(&iter, &al, evsel, sample,
+ top->max_stack, top);
+ if (err < 0)
+ pr_err("Problem incrementing symbol period, skipping event\n");
- if (sort__has_sym)
- perf_top__record_precise_ip(top, he, evsel->idx, ip);
+ pthread_mutex_unlock(&evsel->hists.lock);
}
return;
if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
ui__error("Failed to mmap with %d (%s)\n",
- errno, strerror(errno));
+ errno, strerror_r(errno, msg, sizeof(msg)));
goto out_err;
}
param.sched_priority = top->realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
ui__error("Could not set realtime priority.\n");
- goto out_delete;
+ goto out_join;
}
}
}
ret = 0;
+out_join:
+ pthread_join(thread, NULL);
out_delete:
perf_session__delete(top->session);
top->session = NULL;
if (!strcmp(var, "top.call-graph"))
return record_parse_callchain(value, &top->record_opts);
+ if (!strcmp(var, "top.children")) {
+ symbol_conf.cumulate_callchain = perf_config_bool(var, value);
+ return 0;
+ }
return perf_default_config(var, value, cb);
}
OPT_CALLBACK(0, "call-graph", &top.record_opts,
"mode[,dump_size]", record_callchain_help,
&parse_callchain_opt),
+ OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
+ "Accumulate callchains of children and show total overhead as well"),
OPT_INTEGER(0, "max-stack", &top.max_stack,
"Set the maximum stack depth when parsing the callchain. "
"Default: " __stringify(PERF_MAX_STACK_DEPTH)),
"Don't show entries under that percent", parse_percent_limit),
OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
"How to display percentage of filtered entries", parse_filter_percentage),
+ OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
+ "width[,width...]",
+ "don't try to adjust column width, use these fixed values"),
OPT_END()
};
const char * const top_usage[] = {
top.sym_evsel = perf_evlist__first(top.evlist);
+ if (!symbol_conf.use_callchain) {
+ symbol_conf.cumulate_callchain = false;
+ perf_hpp__cancel_cumulate();
+ }
+
symbol_conf.priv_size = sizeof(struct annotation);
symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
- if (symbol__init() < 0)
+ if (symbol__init(NULL) < 0)
return -1;
sort__setup_elide(stdout);
projects / deliverable / linux.git / blobdiff