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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-02-22 12:02:07 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-02-22 12:02:07 -0300 |
commit | c97cf42219b7b6037d2f96c27a5f114f2383f828 (patch) | |
tree | 2180e3eae063a217d1681074a813eed42ad91a86 /tools/perf/util/ui/browsers/top.c | |
parent | 8635bf6ea3402154eec64763e6ed14972013c1c1 (diff) | |
download | op-kernel-dev-c97cf42219b7b6037d2f96c27a5f114f2383f828.zip op-kernel-dev-c97cf42219b7b6037d2f96c27a5f114f2383f828.tar.gz |
perf top: Live TUI Annotation
Now one has just to press the right key, 'a' or Enter on the main 'perf
top --tui' screen to live annotate the symbol under the cursor.
The annotate window starts centered on the hottest line (the one with
most samples so far) then TAB and shift+TAB can be used to go to the
prev/next hot line.
Pressing 'H' at any point will center again the screen on the hottest
line.
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>
Diffstat (limited to 'tools/perf/util/ui/browsers/top.c')
-rw-r--r-- | tools/perf/util/ui/browsers/top.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/tools/perf/util/ui/browsers/top.c b/tools/perf/util/ui/browsers/top.c index ca60624..377ff58 100644 --- a/tools/perf/util/ui/browsers/top.c +++ b/tools/perf/util/ui/browsers/top.c @@ -7,6 +7,7 @@ * 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 "../../evlist.h" @@ -18,6 +19,7 @@ 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; @@ -60,6 +62,9 @@ static void perf_top_browser__write(struct ui_browser *browser, void *entry, int 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) @@ -80,21 +85,52 @@ static void perf_top_browser__update_rb_tree(struct perf_top_browser *browser) browser->b.nr_entries = top->rb_entries; } +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") < 0) + 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); @@ -109,7 +145,12 @@ static int perf_top_browser__run(struct perf_top_browser *browser) SLsmg_gotorc(0, 0); slsmg_write_nstring(title, browser->b.width); break; - case NEWT_KEY_TAB: + case 'a': + case NEWT_KEY_RIGHT: + case NEWT_KEY_ENTER: + if (browser->selection) + perf_top_browser__annotate(browser); + break; default: goto out; } |