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perf top: Stop using globals for tool state 

Use its 'perf_tool' base class instead.

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-i33q40wwvk2zna8fd36ex6sm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Arnaldo Carvalho de Melo 2011-11-28 09:37:05 -02:00
parent 45694aa770
commit 1758af10cf
2 changed files with 245 additions and 235 deletions
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464
tools/perf/builtin-top.c
View File

@ -64,44 +64,6 @@
#include <linux/unistd.h>
#include <linux/types.h>
static struct perf_top top = {
.count_filter = 5,
.delay_secs = 2,
.target_pid = -1,
.target_tid = -1,
.freq = 1000, /* 1 KHz */
};
static bool system_wide = false;
static bool use_tui, use_stdio;
static bool sort_has_symbols;
static bool dont_use_callchains;
static char callchain_default_opt[] = "fractal,0.5,callee";
static int default_interval = 0;
static bool kptr_restrict_warned;
static bool vmlinux_warned;
static bool inherit = false;
static int realtime_prio = 0;
static bool group = false;
static bool sample_id_all_avail = true;
static unsigned int mmap_pages = 128;
static bool dump_symtab = false;
static struct winsize winsize;
static const char *sym_filter = NULL;
static int sym_pcnt_filter = 5;
/*
* Source functions
*/
void get_term_dimensions(struct winsize *ws)
{
@ -125,21 +87,23 @@ void get_term_dimensions(struct winsize *ws)
ws->ws_col = 80;
}
static void update_print_entries(struct winsize *ws)
static void perf_top__update_print_entries(struct perf_top *top)
{
top.print_entries = ws->ws_row;
top->print_entries = top->winsize.ws_row;
if (top.print_entries > 9)
top.print_entries -= 9;
if (top->print_entries > 9)
top->print_entries -= 9;
}
static void sig_winch_handler(int sig __used)
static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *arg)
{
get_term_dimensions(&winsize);
update_print_entries(&winsize);
struct perf_top *top = arg;
get_term_dimensions(&top->winsize);
perf_top__update_print_entries(top);
}
static int parse_source(struct hist_entry *he)
static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
{
struct symbol *sym;
struct annotation *notes;
@ -181,7 +145,7 @@ static int parse_source(struct hist_entry *he)
err = symbol__annotate(sym, map, 0);
if (err == 0) {
out_assign:
top.sym_filter_entry = he;
top->sym_filter_entry = he;
}
pthread_mutex_unlock(&notes->lock);
@ -194,14 +158,16 @@ static void __zero_source_counters(struct hist_entry *he)
symbol__annotate_zero_histograms(sym);
}
static void record_precise_ip(struct hist_entry *he, int counter, u64 ip)
static void perf_top__record_precise_ip(struct perf_top *top,
struct hist_entry *he,
int counter, u64 ip)
{
struct annotation *notes;
struct symbol *sym;
if (he == NULL || he->ms.sym == NULL ||
((top.sym_filter_entry == NULL ||
top.sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1))
((top->sym_filter_entry == NULL ||
top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1))
return;
sym = he->ms.sym;
@ -224,8 +190,9 @@ static void record_precise_ip(struct hist_entry *he, int counter, u64 ip)
pthread_mutex_unlock(&notes->lock);
}
static void show_details(struct hist_entry *he)
static void perf_top__show_details(struct perf_top *top)
{
struct hist_entry *he = top->sym_filter_entry;
struct annotation *notes;
struct symbol *symbol;
int more;
@ -241,15 +208,15 @@ static void show_details(struct hist_entry *he)
if (notes->src == NULL)
goto out_unlock;
printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name);
printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter);
printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name);
printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
more = symbol__annotate_printf(symbol, he->ms.map, top.sym_evsel->idx,
0, sym_pcnt_filter, top.print_entries, 4);
if (top.zero)
symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx);
more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx,
0, top->sym_pcnt_filter, top->print_entries, 4);
if (top->zero)
symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
else
symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx);
symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
if (more != 0)
printf("%d lines not displayed, maybe increase display entries [e]\n", more);
out_unlock:
@ -273,45 +240,46 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
return he;
}
static void print_sym_table(void)
static void perf_top__print_sym_table(struct perf_top *top)
{
char bf[160];
int printed = 0;
const int win_width = winsize.ws_col - 1;
const int win_width = top->winsize.ws_col - 1;
puts(CONSOLE_CLEAR);
perf_top__header_snprintf(&top, bf, sizeof(bf));
perf_top__header_snprintf(top, bf, sizeof(bf));
printf("%s\n", bf);
perf_top__reset_sample_counters(&top);
perf_top__reset_sample_counters(top);
printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
if (top.sym_evsel->hists.stats.nr_lost_warned !=
top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) {
top.sym_evsel->hists.stats.nr_lost_warned =
top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST];
if (top->sym_evsel->hists.stats.nr_lost_warned !=
top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) {
top->sym_evsel->hists.stats.nr_lost_warned =
top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST];
color_fprintf(stdout, PERF_COLOR_RED,
"WARNING: LOST %d chunks, Check IO/CPU overload",
top.sym_evsel->hists.stats.nr_lost_warned);
top->sym_evsel->hists.stats.nr_lost_warned);
++printed;
}
if (top.sym_filter_entry) {
show_details(top.sym_filter_entry);
if (top->sym_filter_entry) {
perf_top__show_details(top);
return;
}
hists__collapse_resort_threaded(&top.sym_evsel->hists);
hists__output_resort_threaded(&top.sym_evsel->hists);
hists__decay_entries_threaded(&top.sym_evsel->hists,
top.hide_user_symbols,
top.hide_kernel_symbols);
hists__output_recalc_col_len(&top.sym_evsel->hists, winsize.ws_row - 3);
hists__collapse_resort_threaded(&top->sym_evsel->hists);
hists__output_resort_threaded(&top->sym_evsel->hists);
hists__decay_entries_threaded(&top->sym_evsel->hists,
top->hide_user_symbols,
top->hide_kernel_symbols);
hists__output_recalc_col_len(&top->sym_evsel->hists,
top->winsize.ws_row - 3);
putchar('\n');
hists__fprintf(&top.sym_evsel->hists, NULL, false, false,
winsize.ws_row - 4 - printed, win_width, stdout);
hists__fprintf(&top->sym_evsel->hists, NULL, false, false,
top->winsize.ws_row - 4 - printed, win_width, stdout);
}
static void prompt_integer(int *target, const char *msg)
@ -349,17 +317,17 @@ static void prompt_percent(int *target, const char *msg)
*target = tmp;
}
static void prompt_symbol(struct hist_entry **target, const char *msg)
static void perf_top__prompt_symbol(struct perf_top *top, const char *msg)
{
char *buf = malloc(0), *p;
struct hist_entry *syme = *target, *n, *found = NULL;
struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL;
struct rb_node *next;
size_t dummy = 0;
/* zero counters of active symbol */
if (syme) {
__zero_source_counters(syme);
*target = NULL;
top->sym_filter_entry = NULL;
}
fprintf(stdout, "\n%s: ", msg);
@ -370,7 +338,7 @@ static void prompt_symbol(struct hist_entry **target, const char *msg)
if (p)
*p = 0;
next = rb_first(&top.sym_evsel->hists.entries);
next = rb_first(&top->sym_evsel->hists.entries);
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) {
@ -385,45 +353,45 @@ static void prompt_symbol(struct hist_entry **target, const char *msg)
sleep(1);
return;
} else
parse_source(found);
perf_top__parse_source(top, found);
out_free:
free(buf);
}
static void print_mapped_keys(void)
static void perf_top__print_mapped_keys(struct perf_top *top)
{
char *name = NULL;
if (top.sym_filter_entry) {
struct symbol *sym = top.sym_filter_entry->ms.sym;
if (top->sym_filter_entry) {
struct symbol *sym = top->sym_filter_entry->ms.sym;
name = sym->name;
}
fprintf(stdout, "\nMapped keys:\n");
fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs);
fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries);
fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs);
fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries);
if (top.evlist->nr_entries > 1)
fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel));
if (top->evlist->nr_entries > 1)
fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top->sym_evsel));
fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter);
fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter);
fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter);
fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter);
fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
fprintf(stdout, "\t[S] stop annotation.\n");
fprintf(stdout,
"\t[K] hide kernel_symbols symbols. \t(%s)\n",
top.hide_kernel_symbols ? "yes" : "no");
top->hide_kernel_symbols ? "yes" : "no");
fprintf(stdout,
"\t[U] hide user symbols. \t(%s)\n",
top.hide_user_symbols ? "yes" : "no");
fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0);
top->hide_user_symbols ? "yes" : "no");
fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0);
fprintf(stdout, "\t[qQ] quit.\n");
}
static int key_mapped(int c)
static int perf_top__key_mapped(struct perf_top *top, int c)
{
switch (c) {
case 'd':
@ -439,7 +407,7 @@ static int key_mapped(int c)
case 'S':
return 1;
case 'E':
return top.evlist->nr_entries > 1 ? 1 : 0;
return top->evlist->nr_entries > 1 ? 1 : 0;
default:
break;
}
@ -447,13 +415,13 @@ static int key_mapped(int c)
return 0;
}
static void handle_keypress(int c)
static void perf_top__handle_keypress(struct perf_top *top, int c)
{
if (!key_mapped(c)) {
if (!perf_top__key_mapped(top, c)) {
struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
struct termios tc, save;
print_mapped_keys();
perf_top__print_mapped_keys(top);
fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
fflush(stdout);
@ -468,81 +436,86 @@ static void handle_keypress(int c)
c = getc(stdin);
tcsetattr(0, TCSAFLUSH, &save);
if (!key_mapped(c))
if (!perf_top__key_mapped(top, c))
return;
}
switch (c) {
case 'd':
prompt_integer(&top.delay_secs, "Enter display delay");
if (top.delay_secs < 1)
top.delay_secs = 1;
prompt_integer(&top->delay_secs, "Enter display delay");
if (top->delay_secs < 1)
top->delay_secs = 1;
break;
case 'e':
prompt_integer(&top.print_entries, "Enter display entries (lines)");
if (top.print_entries == 0) {
sig_winch_handler(SIGWINCH);
signal(SIGWINCH, sig_winch_handler);
prompt_integer(&top->print_entries, "Enter display entries (lines)");
if (top->print_entries == 0) {
struct sigaction act = {
.sa_sigaction = perf_top__sig_winch,
.sa_flags = SA_SIGINFO,
};
perf_top__sig_winch(SIGWINCH, NULL, top);
sigaction(SIGWINCH, &act, NULL);
} else
signal(SIGWINCH, SIG_DFL);
break;
case 'E':
if (top.evlist->nr_entries > 1) {
if (top->evlist->nr_entries > 1) {
/* Select 0 as the default event: */
int counter = 0;
fprintf(stderr, "\nAvailable events:");
list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel));
list_for_each_entry(top->sym_evsel, &top->evlist->entries, node)
fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel));
prompt_integer(&counter, "Enter details event counter");
if (counter >= top.evlist->nr_entries) {
top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel));
if (counter >= top->evlist->nr_entries) {
top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node);
fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel));
sleep(1);
break;
}
list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
if (top.sym_evsel->idx == counter)
list_for_each_entry(top->sym_evsel, &top->evlist->entries, node)
if (top->sym_evsel->idx == counter)
break;
} else
top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node);
break;
case 'f':
prompt_integer(&top.count_filter, "Enter display event count filter");
prompt_integer(&top->count_filter, "Enter display event count filter");
break;
case 'F':
prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)");
prompt_percent(&top->sym_pcnt_filter,
"Enter details display event filter (percent)");
break;
case 'K':
top.hide_kernel_symbols = !top.hide_kernel_symbols;
top->hide_kernel_symbols = !top->hide_kernel_symbols;
break;
case 'q':
case 'Q':
printf("exiting.\n");
if (dump_symtab)
perf_session__fprintf_dsos(top.session, stderr);
if (top->dump_symtab)
perf_session__fprintf_dsos(top->session, stderr);
exit(0);
case 's':
prompt_symbol(&top.sym_filter_entry, "Enter details symbol");
perf_top__prompt_symbol(top, "Enter details symbol");
break;
case 'S':
if (!top.sym_filter_entry)
if (!top->sym_filter_entry)
break;
else {
struct hist_entry *syme = top.sym_filter_entry;
struct hist_entry *syme = top->sym_filter_entry;
top.sym_filter_entry = NULL;
top->sym_filter_entry = NULL;
__zero_source_counters(syme);
}
break;
case 'U':
top.hide_user_symbols = !top.hide_user_symbols;
top->hide_user_symbols = !top->hide_user_symbols;
break;
case 'z':
top.zero = !top.zero;
top->zero = !top->zero;
break;
default:
break;
@ -560,28 +533,30 @@ static void perf_top__sort_new_samples(void *arg)
hists__collapse_resort_threaded(&t->sym_evsel->hists);
hists__output_resort_threaded(&t->sym_evsel->hists);
hists__decay_entries_threaded(&t->sym_evsel->hists,
top.hide_user_symbols,
top.hide_kernel_symbols);
t->hide_user_symbols,
t->hide_kernel_symbols);
}
static void *display_thread_tui(void *arg __used)
static void *display_thread_tui(void *arg)
{
struct perf_top *top = arg;
const char *help = "For a higher level overview, try: perf top --sort comm,dso";
perf_top__sort_new_samples(&top);
perf_evlist__tui_browse_hists(top.evlist, help,
perf_top__sort_new_samples(top);
perf_evlist__tui_browse_hists(top->evlist, help,
perf_top__sort_new_samples,
&top, top.delay_secs);
top, top->delay_secs);
exit_browser(0);
exit(0);
return NULL;
}
static void *display_thread(void *arg __used)
static void *display_thread(void *arg)
{
struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
struct termios tc, save;
struct perf_top *top = arg;
int delay_msecs, c;
tcgetattr(0, &save);
@ -592,13 +567,13 @@ static void *display_thread(void *arg __used)
pthread__unblock_sigwinch();
repeat:
delay_msecs = top.delay_secs * 1000;
delay_msecs = top->delay_secs * 1000;
tcsetattr(0, TCSANOW, &tc);
/* trash return*/
getc(stdin);
while (1) {
print_sym_table();
perf_top__print_sym_table(top);
/*
* Either timeout expired or we got an EINTR due to SIGWINCH,
* refresh screen in both cases.
@ -618,7 +593,7 @@ process_hotkey:
c = getc(stdin);
tcsetattr(0, TCSAFLUSH, &save);
handle_keypress(c);
perf_top__handle_keypress(top, c);
goto repeat;
return NULL;
@ -670,11 +645,13 @@ static int symbol_filter(struct map *map __used, struct symbol *sym)
return 0;
}
static void perf_event__process_sample(const union perf_event *event,
static void perf_event__process_sample(struct perf_tool *tool,
const union perf_event *event,
struct perf_evsel *evsel,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_top *top = container_of(tool, struct perf_top, tool);
struct symbol *parent = NULL;
u64 ip = event->ip.ip;
struct addr_location al;
@ -687,14 +664,14 @@ static void perf_event__process_sample(const union perf_event *event,
}
if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
top.exact_samples++;
top->exact_samples++;
if (perf_event__preprocess_sample(event, machine, &al, sample,
symbol_filter) < 0 ||
al.filtered)
return;
if (!kptr_restrict_warned &&
if (!top->kptr_restrict_warned &&
symbol_conf.kptr_restrict &&
al.cpumode == PERF_RECORD_MISC_KERNEL) {
ui__warning(
@ -705,7 +682,7 @@ static void perf_event__process_sample(const union perf_event *event,
" modules" : "");
if (use_browser <= 0)
sleep(5);
kptr_restrict_warned = true;
top->kptr_restrict_warned = true;
}
if (al.sym == NULL) {
@ -721,7 +698,7 @@ static void perf_event__process_sample(const union perf_event *event,
* --hide-kernel-symbols, even if the user specifies an
* invalid --vmlinux ;-)
*/
if (!kptr_restrict_warned && !vmlinux_warned &&
if (!top->kptr_restrict_warned && !top->vmlinux_warned &&
al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
if (symbol_conf.vmlinux_name) {
@ -734,7 +711,7 @@ static void perf_event__process_sample(const union perf_event *event,
if (use_browser <= 0)
sleep(5);
vmlinux_warned = true;
top->vmlinux_warned = true;
}
}
@ -762,56 +739,57 @@ static void perf_event__process_sample(const union perf_event *event,
return;
}
if (sort_has_symbols)
record_precise_ip(he, evsel->idx, ip);
if (top->sort_has_symbols)
perf_top__record_precise_ip(top, he, evsel->idx, ip);
}
return;
}
static void perf_session__mmap_read_idx(struct perf_session *self, int idx)
static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
{
struct perf_sample sample;
struct perf_evsel *evsel;
struct perf_session *session = top->session;
union perf_event *event;
struct machine *machine;
u8 origin;
int ret;
while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) {
ret = perf_session__parse_sample(self, event, &sample);
while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
ret = perf_session__parse_sample(session, event, &sample);
if (ret) {
pr_err("Can't parse sample, err = %d\n", ret);
continue;
}
evsel = perf_evlist__id2evsel(self->evlist, sample.id);
evsel = perf_evlist__id2evsel(session->evlist, sample.id);
assert(evsel != NULL);
origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
if (event->header.type == PERF_RECORD_SAMPLE)
++top.samples;
++top->samples;
switch (origin) {
case PERF_RECORD_MISC_USER:
++top.us_samples;
if (top.hide_user_symbols)
++top->us_samples;
if (top->hide_user_symbols)
continue;
machine = perf_session__find_host_machine(self);
machine = perf_session__find_host_machine(session);
break;
case PERF_RECORD_MISC_KERNEL:
++top.kernel_samples;
if (top.hide_kernel_symbols)
++top->kernel_samples;
if (top->hide_kernel_symbols)
continue;
machine = perf_session__find_host_machine(self);
machine = perf_session__find_host_machine(session);
break;
case PERF_RECORD_MISC_GUEST_KERNEL:
++top.guest_kernel_samples;
machine = perf_session__find_machine(self, event->ip.pid);
++top->guest_kernel_samples;
machine = perf_session__find_machine(session, event->ip.pid);
break;
case PERF_RECORD_MISC_GUEST_USER:
++top.guest_us_samples;
++top->guest_us_samples;
/*
* TODO: we don't process guest user from host side
* except simple counting.
@ -822,27 +800,29 @@ static void perf_session__mmap_read_idx(struct perf_session *self, int idx)
}
if (event->header.type == PERF_RECORD_SAMPLE)
perf_event__process_sample(event, evsel, &sample, machine);
else if (event->header.type < PERF_RECORD_MAX) {
if (event->header.type == PERF_RECORD_SAMPLE) {
perf_event__process_sample(&top->tool, event, evsel,
&sample, machine);
} else if (event->header.type < PERF_RECORD_MAX) {
hists__inc_nr_events(&evsel->hists, event->header.type);
perf_event__process(&top.tool, event, &sample, machine);
perf_event__process(&top->tool, event, &sample, machine);
} else
++self->hists.stats.nr_unknown_events;
++session->hists.stats.nr_unknown_events;
}
}
static void perf_session__mmap_read(struct perf_session *self)
static void perf_top__mmap_read(struct perf_top *top)
{
int i;
for (i = 0; i < top.evlist->nr_mmaps; i++)
perf_session__mmap_read_idx(self, i);
for (i = 0; i < top->evlist->nr_mmaps; i++)
perf_top__mmap_read_idx(top, i);
}
static void start_counters(struct perf_evlist *evlist)
static void perf_top__start_counters(struct perf_top *top)
{
struct perf_evsel *counter, *first;
struct perf_evlist *evlist = top->evlist;
first = list_entry(evlist->entries.next, struct perf_evsel, node);
@ -850,15 +830,15 @@ static void start_counters(struct perf_evlist *evlist)
struct perf_event_attr *attr = &counter->attr;
struct xyarray *group_fd = NULL;
if (group && counter != first)
if (top->group && counter != first)
group_fd = first->fd;
attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
if (top.freq) {
if (top->freq) {
attr->sample_type |= PERF_SAMPLE_PERIOD;
attr->freq = 1;
attr->sample_freq = top.freq;
attr->sample_freq = top->freq;
}
if (evlist->nr_entries > 1) {
@ -871,23 +851,23 @@ static void start_counters(struct perf_evlist *evlist)
attr->mmap = 1;
attr->comm = 1;
attr->inherit = inherit;
attr->inherit = top->inherit;
retry_sample_id:
attr->sample_id_all = sample_id_all_avail ? 1 : 0;
attr->sample_id_all = top->sample_id_all_avail ? 1 : 0;
try_again:
if (perf_evsel__open(counter, top.evlist->cpus,
top.evlist->threads, group,
if (perf_evsel__open(counter, top->evlist->cpus,
top->evlist->threads, top->group,
group_fd) < 0) {
int err = errno;
if (err == EPERM || err == EACCES) {
ui__error_paranoid();
goto out_err;
} else if (err == EINVAL && sample_id_all_avail) {
} else if (err == EINVAL && top->sample_id_all_avail) {
/*
* Old kernel, no attr->sample_id_type_all field
*/
sample_id_all_avail = false;
top->sample_id_all_avail = false;
goto retry_sample_id;
}
/*
@ -921,7 +901,7 @@ try_again:
}
}
if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) {
if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) {
ui__warning("Failed to mmap with %d (%s)\n",
errno, strerror(errno));
goto out_err;
@ -934,14 +914,14 @@ out_err:
exit(0);
}
static int setup_sample_type(void)
static int perf_top__setup_sample_type(struct perf_top *top)
{
if (!sort_has_symbols) {
if (!top->sort_has_symbols) {
if (symbol_conf.use_callchain) {
ui__warning("Selected -g but \"sym\" not present in --sort/-s.");
return -EINVAL;
}
} else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
} else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
if (callchain_register_param(&callchain_param) < 0) {
ui__warning("Can't register callchain params.\n");
return -EINVAL;
@ -951,7 +931,7 @@ static int setup_sample_type(void)
return 0;
}
static int __cmd_top(void)
static int __cmd_top(struct perf_top *top)
{
pthread_t thread;
int ret;
@ -959,40 +939,40 @@ static int __cmd_top(void)
* FIXME: perf_session__new should allow passing a O_MMAP, so that all this
* mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
*/
top.session = perf_session__new(NULL, O_WRONLY, false, false, NULL);
if (top.session == NULL)
top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL);
if (top->session == NULL)
return -ENOMEM;
ret = setup_sample_type();
ret = perf_top__setup_sample_type(top);
if (ret)
goto out_delete;
if (top.target_tid != -1)
perf_event__synthesize_thread_map(&top.tool, top.evlist->threads,
if (top->target_tid != -1)
perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
perf_event__process,
&top.session->host_machine);
&top->session->host_machine);
else
perf_event__synthesize_threads(&top.tool, perf_event__process,
&top.session->host_machine);
start_counters(top.evlist);
top.session->evlist = top.evlist;
perf_session__update_sample_type(top.session);
perf_event__synthesize_threads(&top->tool, perf_event__process,
&top->session->host_machine);
perf_top__start_counters(top);
top->session->evlist = top->evlist;
perf_session__update_sample_type(top->session);
/* Wait for a minimal set of events before starting the snapshot */
poll(top.evlist->pollfd, top.evlist->nr_fds, 100);
poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
perf_session__mmap_read(top.session);
perf_top__mmap_read(top);
if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
display_thread), NULL)) {
display_thread), top)) {
printf("Could not create display thread.\n");
exit(-1);
}
if (realtime_prio) {
if (top->realtime_prio) {
struct sched_param param;
param.sched_priority = realtime_prio;
param.sched_priority = top->realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, &param)) {
printf("Could not set realtime priority.\n");
exit(-1);
@ -1000,25 +980,25 @@ static int __cmd_top(void)
}
while (1) {
u64 hits = top.samples;
u64 hits = top->samples;
perf_session__mmap_read(top.session);
perf_top__mmap_read(top);
if (hits == top.samples)
ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100);
if (hits == top->samples)
ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
}
out_delete:
perf_session__delete(top.session);
top.session = NULL;
perf_session__delete(top->session);
top->session = NULL;
return 0;
}
static int
parse_callchain_opt(const struct option *opt __used, const char *arg,
int unset)
parse_callchain_opt(const struct option *opt, const char *arg, int unset)
{
struct perf_top *top = (struct perf_top *)opt->value;
char *tok, *tok2;
char *endptr;
@ -1026,7 +1006,7 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
* --no-call-graph
*/
if (unset) {
dont_use_callchains = true;
top->dont_use_callchains = true;
return 0;
}
@ -1100,17 +1080,32 @@ static const char * const top_usage[] = {
NULL
};
static const struct option options[] = {
int cmd_top(int argc, const char **argv, const char *prefix __used)
{
struct perf_evsel *pos;
int status = -ENOMEM;
struct perf_top top = {
.count_filter = 5,
.delay_secs = 2,
.target_pid = -1,
.target_tid = -1,
.freq = 1000, /* 1 KHz */
.sample_id_all_avail = true,
.mmap_pages = 128,
.sym_pcnt_filter = 5,
};
char callchain_default_opt[] = "fractal,0.5,callee";
const struct option options[] = {
OPT_CALLBACK('e', "event", &top.evlist, "event",
"event selector. use 'perf list' to list available events",
parse_events_option),
OPT_INTEGER('c', "count", &default_interval,
OPT_INTEGER('c', "count", &top.default_interval,
"event period to sample"),
OPT_INTEGER('p', "pid", &top.target_pid,
"profile events on existing process id"),
OPT_INTEGER('t', "tid", &top.target_tid,
"profile events on existing thread id"),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
OPT_BOOLEAN('a', "all-cpus", &top.system_wide,
"system-wide collection from all CPUs"),
OPT_STRING('C', "cpu", &top.cpu_list, "cpu",
"list of cpus to monitor"),
@ -1118,20 +1113,20 @@ static const struct option options[] = {
"file", "vmlinux pathname"),
OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
"hide kernel symbols"),
OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"),
OPT_INTEGER('r', "realtime", &realtime_prio,
OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"),
OPT_INTEGER('r', "realtime", &top.realtime_prio,
"collect data with this RT SCHED_FIFO priority"),
OPT_INTEGER('d', "delay", &top.delay_secs,
"number of seconds to delay between refreshes"),
OPT_BOOLEAN('D', "dump-symtab", &dump_symtab,
OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab,
"dump the symbol table used for profiling"),
OPT_INTEGER('f', "count-filter", &top.count_filter,
"only display functions with more events than this"),
OPT_BOOLEAN('g', "group", &group,
OPT_BOOLEAN('g', "group", &top.group,
"put the counters into a counter group"),
OPT_BOOLEAN('i', "inherit", &inherit,
OPT_BOOLEAN('i', "inherit", &top.inherit,
"child tasks inherit counters"),
OPT_STRING(0, "sym-annotate", &sym_filter, "symbol name",
OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
"symbol to annotate"),
OPT_BOOLEAN('z', "zero", &top.zero,
"zero history across updates"),
@ -1141,15 +1136,15 @@ static const struct option options[] = {
"display this many functions"),
OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
"hide user symbols"),
OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"),
OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"),
OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"),
OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent"),
OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
"Show a column with the number of samples"),
OPT_CALLBACK_DEFAULT('G', "call-graph", NULL, "output_type,min_percent, call_order",
OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order",
"Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. "
"Default: fractal,0.5,callee", &parse_callchain_opt,
callchain_default_opt),
@ -1168,12 +1163,7 @@ static const struct option options[] = {
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_END()
};
int cmd_top(int argc, const char **argv, const char *prefix __used)
{
struct perf_evsel *pos;
int status = -ENOMEM;
};
top.evlist = perf_evlist__new(NULL, NULL);
if (top.evlist == NULL)
@ -1190,9 +1180,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
setup_sorting(top_usage, options);
if (use_stdio)
if (top.use_stdio)
use_browser = 0;
else if (use_tui)
else if (top.use_tui)
use_browser = 1;
setup_browser(false);
@ -1225,10 +1215,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
/*
* User specified count overrides default frequency.
*/
if (default_interval)
if (top.default_interval)
top.freq = 0;
else if (top.freq) {
default_interval = top.freq;
top.default_interval = top.freq;
} else {
fprintf(stderr, "frequency and count are zero, aborting\n");
exit(EXIT_FAILURE);
@ -1244,7 +1234,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
if (pos->attr.sample_period)
continue;
pos->attr.sample_period = default_interval;
pos->attr.sample_period = top.default_interval;
}
if (perf_evlist__alloc_pollfd(top.evlist) < 0 ||
@ -1267,15 +1257,19 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
* Avoid annotation data structures overhead when symbols aren't on the
* sort list.
*/
sort_has_symbols = sort_sym.list.next != NULL;
top.sort_has_symbols = sort_sym.list.next != NULL;
get_term_dimensions(&winsize);
get_term_dimensions(&top.winsize);
if (top.print_entries == 0) {
update_print_entries(&winsize);
signal(SIGWINCH, sig_winch_handler);
struct sigaction act = {
.sa_sigaction = perf_top__sig_winch,
.sa_flags = SA_SIGINFO,
};
perf_top__update_print_entries(&top);
sigaction(SIGWINCH, &act, NULL);
}
status = __cmd_top();
status = __cmd_top(&top);
out_free_fd:
perf_evlist__delete(top.evlist);

16
tools/perf/util/top.h
View File

@ -25,10 +25,26 @@ struct perf_top {
int freq;
pid_t target_pid, target_tid;
bool hide_kernel_symbols, hide_user_symbols, zero;
bool system_wide;
bool use_tui, use_stdio;
bool sort_has_symbols;
bool dont_use_callchains;
bool kptr_restrict_warned;
bool vmlinux_warned;
bool inherit;
bool group;
bool sample_id_all_avail;
bool dump_symtab;
const char *cpu_list;
struct hist_entry *sym_filter_entry;
struct perf_evsel *sym_evsel;
struct perf_session *session;
struct winsize winsize;
unsigned int mmap_pages;
int default_interval;
int realtime_prio;
int sym_pcnt_filter;
const char *sym_filter;
};
size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size);