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perf top: Introduce slang based TUI

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Disabled by default as there are features found in the stdio based one
that aren't implemented, like live annotation, filtering knobs data
entry.

Annotation hopefully will get somehow merged with the 'perf annotate'
code.

To use it:

perf top --tui

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2011-01-31 18:19:33 -02:00
parent 229ade9ba3
commit c0443df1b6
5 changed files with 189 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
tools/perf/Makefile
View file

@ -621,6 +621,7 @@ else
LIB_OBJS += $(OUTPUT)util/ui/browsers/annotate.o
LIB_OBJS += $(OUTPUT)util/ui/browsers/hists.o
LIB_OBJS += $(OUTPUT)util/ui/browsers/map.o
LIB_OBJS += $(OUTPUT)util/ui/browsers/top.o
LIB_OBJS += $(OUTPUT)util/ui/helpline.o
LIB_OBJS += $(OUTPUT)util/ui/progress.o
LIB_OBJS += $(OUTPUT)util/ui/util.o
@ -1050,6 +1051,9 @@ $(OUTPUT)util/ui/browser.o: util/ui/browser.c $(OUTPUT)PERF-CFLAGS
$(OUTPUT)util/ui/browsers/annotate.o: util/ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
$(OUTPUT)util/ui/browsers/top.o: util/ui/browsers/top.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
$(OUTPUT)util/ui/browsers/hists.o: util/ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<

35
tools/perf/builtin-top.c
View file

@ -20,6 +20,7 @@
#include "perf.h"
#include "util/cache.h"
#include "util/color.h"
#include "util/evlist.h"
#include "util/evsel.h"
@ -75,6 +76,8 @@ static struct perf_top top = {
static bool system_wide = false;
static bool use_tui, use_stdio;
static int default_interval = 0;
static bool inherit = false;
@ -96,11 +99,6 @@ static int sym_pcnt_filter = 5;
* Source functions
*/
static inline struct symbol *sym_entry__symbol(struct sym_entry *self)
{
return ((void *)self) + symbol_conf.priv_size;
}
void get_term_dimensions(struct winsize *ws)
{
char *s = getenv("LINES");
@ -695,6 +693,14 @@ static void handle_keypress(struct perf_session *session, int c)
}
}
static void *display_thread_tui(void *arg __used)
{
perf_top__tui_browser(&top);
exit_browser(0);
exit(0);
return NULL;
}
static void *display_thread(void *arg __used)
{
struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
@ -1005,7 +1011,8 @@ static int __cmd_top(void)
perf_session__mmap_read(session);
if (pthread_create(&thread, NULL, display_thread, session)) {
if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
display_thread), session)) {
printf("Could not create display thread.\n");
exit(-1);
}
@ -1078,6 +1085,8 @@ 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_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_END()
@ -1098,6 +1107,20 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
if (argc)
usage_with_options(top_usage, options);
/*
* XXX For now start disabled, only using TUI if explicitely asked for.
* Change that when handle_keys equivalent gets written, live annotation
* done, etc.
*/
use_browser = 0;
if (use_stdio)
use_browser = 0;
else if (use_tui)
use_browser = 1;
setup_browser(false);
/* CPU and PID are mutually exclusive */
if (top.target_tid > 0 && top.cpu_list) {
printf("WARNING: PID switch overriding CPU\n");

7
tools/perf/util/top.c
View file

@ -158,6 +158,7 @@ float perf_top__decay_samples(struct perf_top *top, struct rb_root *root)
syme = list_entry(top->active_symbols.next, struct sym_entry, node);
pthread_mutex_unlock(&top->active_symbols_lock);
top->rb_entries = 0;
list_for_each_entry_safe_from(syme, n, &top->active_symbols, node) {
syme->snap_count = syme->count[snap];
if (syme->snap_count != 0) {
@ -170,7 +171,11 @@ float perf_top__decay_samples(struct perf_top *top, struct rb_root *root)
continue;
}
syme->weight = sym_weight(syme, top);
rb_insert_active_sym(root, syme);
if ((int)syme->snap_count >= top->count_filter) {
rb_insert_active_sym(root, syme);
++top->rb_entries;
}
sum_ksamples += syme->snap_count;
for (j = 0; j < top->evlist->nr_entries; j++)

15
tools/perf/util/top.h
View file

@ -38,6 +38,11 @@ struct sym_entry {
unsigned long count[0];
};
static inline struct symbol *sym_entry__symbol(struct sym_entry *self)
{
return ((void *)self) + symbol_conf.priv_size;
}
struct perf_top {
struct perf_evlist *evlist;
/*
@ -51,7 +56,7 @@ struct perf_top {
u64 exact_samples;
u64 guest_us_samples, guest_kernel_samples;
int print_entries, count_filter, delay_secs;
int display_weighted, freq;
int display_weighted, freq, rb_entries;
int sym_counter, target_pid, target_tid;
bool hide_kernel_symbols, hide_user_symbols, zero;
const char *cpu_list;
@ -64,4 +69,12 @@ float perf_top__decay_samples(struct perf_top *top, struct rb_root *root);
void perf_top__find_widths(struct perf_top *top, struct rb_root *root,
int *dso_width, int *dso_short_width, int *sym_width);
#ifdef NO_NEWT_SUPPORT
static inline int perf_top__tui_browser(struct perf_top *top __used)
{
return 0;
}
#else
int perf_top__tui_browser(struct perf_top *top);
#endif
#endif /* __PERF_TOP_H */

136
tools/perf/util/ui/browsers/top.c Normal file
View file

@ -0,0 +1,136 @@
/*
* Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Parts came from builtin-{top,stat,record}.c, see those files for further
* copyright notes.
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "../browser.h"
#include "../helpline.h"
#include "../libslang.h"
#include "../../evlist.h"
#include "../../hist.h"
#include "../../sort.h"
#include "../../symbol.h"
#include "../../top.h"
struct perf_top_browser {
struct ui_browser b;
struct rb_root root;
float sum_ksamples;
int dso_width;
int dso_short_width;
int sym_width;
};
static void perf_top_browser__write(struct ui_browser *browser, void *entry, int row)
{
struct perf_top_browser *top_browser = container_of(browser, struct perf_top_browser, b);
struct sym_entry *syme = rb_entry(entry, struct sym_entry, rb_node);
bool current_entry = ui_browser__is_current_entry(browser, row);
struct symbol *symbol = sym_entry__symbol(syme);
struct perf_top *top = browser->priv;
int width = browser->width;
double pcnt;
pcnt = 100.0 - (100.0 * ((top_browser->sum_ksamples - syme->snap_count) /
top_browser->sum_ksamples));
ui_browser__set_percent_color(browser, pcnt, current_entry);
if (top->evlist->nr_entries == 1 || !top->display_weighted) {
slsmg_printf("%20.2f ", syme->weight);
width -= 24;
} else {
slsmg_printf("%9.1f %10ld ", syme->weight, syme->snap_count);
width -= 23;
}
slsmg_printf("%4.1f%%", pcnt);
width -= 7;
if (verbose) {
slsmg_printf(" %016" PRIx64, symbol->start);
width -= 17;
}
slsmg_printf(" %-*.*s ", top_browser->sym_width, top_browser->sym_width,
symbol->name);
width -= top_browser->sym_width;
slsmg_write_nstring(width >= syme->map->dso->long_name_len ?
syme->map->dso->long_name :
syme->map->dso->short_name, width);
}
static void perf_top_browser__update_rb_tree(struct perf_top_browser *browser)
{
struct perf_top *top = browser->b.priv;
browser->root = RB_ROOT;
browser->b.top = NULL;
browser->sum_ksamples = perf_top__decay_samples(top, &browser->root);
perf_top__find_widths(top, &browser->root, &browser->dso_width,
&browser->dso_short_width,
&browser->sym_width);
if (browser->sym_width + browser->dso_width > browser->b.width - 29) {
browser->dso_width = browser->dso_short_width;
if (browser->sym_width + browser->dso_width > browser->b.width - 29)
browser->sym_width = browser->b.width - browser->dso_width - 29;
}
browser->b.nr_entries = top->rb_entries;
}
static int perf_top_browser__run(struct perf_top_browser *browser)
{
int key;
char title[160];
struct perf_top *top = browser->b.priv;
int delay_msecs = top->delay_secs * 1000;
perf_top_browser__update_rb_tree(browser);
perf_top__header_snprintf(top, title, sizeof(title));
perf_top__reset_sample_counters(top);
if (ui_browser__show(&browser->b, title, "ESC: exit") < 0)
return -1;
newtFormSetTimer(browser->b.form, delay_msecs);
while (1) {
key = ui_browser__run(&browser->b);
switch (key) {
case -1:
/* FIXME we need to check if it was es.reason == NEWT_EXIT_TIMER */
perf_top_browser__update_rb_tree(browser);
perf_top__header_snprintf(top, title, sizeof(title));
perf_top__reset_sample_counters(top);
ui_browser__set_color(&browser->b, NEWT_COLORSET_ROOT);
SLsmg_gotorc(0, 0);
slsmg_write_nstring(title, browser->b.width);
break;
case NEWT_KEY_TAB:
default:
goto out;
}
}
out:
ui_browser__hide(&browser->b);
return key;
}
int perf_top__tui_browser(struct perf_top *top)
{
struct perf_top_browser browser = {
.b = {
.entries = &browser.root,
.refresh = ui_browser__rb_tree_refresh,
.seek = ui_browser__rb_tree_seek,
.write = perf_top_browser__write,
.priv = top,
},
};
ui_helpline__push("Press <- or ESC to exit");
return perf_top_browser__run(&browser);
}