diff options
Diffstat (limited to 'tools/perf/util/ui/browsers/top.c')
| -rw-r--r-- | tools/perf/util/ui/browsers/top.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/tools/perf/util/ui/browsers/top.c b/tools/perf/util/ui/browsers/top.c new file mode 100644 index 00000000000..5a06538532a --- /dev/null +++ b/tools/perf/util/ui/browsers/top.c @@ -0,0 +1,213 @@ +/* + * 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 "../../annotate.h" +#include "../helpline.h" +#include "../libslang.h" +#include "../util.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; + struct sym_entry *selection; + 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); + + if (current_entry) + top_browser->selection = syme; +} + +static void perf_top_browser__update_rb_tree(struct perf_top_browser *browser) +{ + struct perf_top *top = browser->b.priv; + u64 top_idx = browser->b.top_idx; + + browser->root = RB_ROOT; + browser->b.top = NULL; + browser->sum_ksamples = perf_top__decay_samples(top, &browser->root); + /* + * No active symbols + */ + if (top->rb_entries == 0) + return; + + 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; + } + + /* + * Adjust the ui_browser indexes since the entries in the browser->root + * rb_tree may have changed, then seek it from start, so that we get a + * possible new top of the screen. + */ + browser->b.nr_entries = top->rb_entries; + + if (top_idx >= browser->b.nr_entries) { + if (browser->b.height >= browser->b.nr_entries) + top_idx = browser->b.nr_entries - browser->b.height; + else + top_idx = 0; + } + + if (browser->b.index >= top_idx + browser->b.height) + browser->b.index = top_idx + browser->b.index - browser->b.top_idx; + + if (browser->b.index >= browser->b.nr_entries) + browser->b.index = browser->b.nr_entries - 1; + + browser->b.top_idx = top_idx; + browser->b.seek(&browser->b, top_idx, SEEK_SET); +} + +static void perf_top_browser__annotate(struct perf_top_browser *browser) +{ + struct sym_entry *syme = browser->selection; + struct symbol *sym = sym_entry__symbol(syme); + struct annotation *notes = symbol__annotation(sym); + struct perf_top *top = browser->b.priv; + + if (notes->src != NULL) + goto do_annotation; + + pthread_mutex_lock(¬es->lock); + + top->sym_filter_entry = NULL; + + if (symbol__alloc_hist(sym, top->evlist->nr_entries) < 0) { + pr_err("Not enough memory for annotating '%s' symbol!\n", + sym->name); + pthread_mutex_unlock(¬es->lock); + return; + } + + top->sym_filter_entry = syme; + + pthread_mutex_unlock(¬es->lock); +do_annotation: + symbol__tui_annotate(sym, syme->map, 0, top->delay_secs * 1000); +} + +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; + int exit_keys[] = { 'a', NEWT_KEY_ENTER, NEWT_KEY_RIGHT, 0, }; + + 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, ENTER|->|a: Live Annotate") < 0) + return -1; + + newtFormSetTimer(browser->b.form, delay_msecs); + ui_browser__add_exit_keys(&browser->b, exit_keys); + + 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 'a': + case NEWT_KEY_RIGHT: + case NEWT_KEY_ENTER: + if (browser->selection) + perf_top_browser__annotate(browser); + break; + case NEWT_KEY_LEFT: + continue; + case NEWT_KEY_ESCAPE: + if (!ui__dialog_yesno("Do you really want to exit?")) + continue; + /* Fall thru */ + 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); +} |