From 4f1202c8e61478984ed2d0df616149faf84c2a7f Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Sun, 20 Sep 2009 18:13:28 +0200 Subject: [PATCH] perf timechart: Show the name of the waker/wakee in timechart Timechart currently shows thin green lines for sending or receiving wakeups. This patch also prints (in a very small font) the name of the process that is being woken/wakes up this process. Signed-off-by: Arjan van de Ven Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: <20090920181328.68baa978@linux.intel.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-timechart.c | 11 ++++++++--- tools/perf/util/svghelper.c | 28 +++++++++++++++++++++------- tools/perf/util/svghelper.h | 2 +- 3 files changed, 30 insertions(+), 11 deletions(-) diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 58d737e..3f45b8b 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -752,6 +752,7 @@ static void draw_wakeups(void) we = wake_events; while (we) { int from = 0, to = 0; + char *task_from = NULL, *task_to = NULL; /* locate the column of the waker and wakee */ p = all_data; @@ -760,10 +761,14 @@ static void draw_wakeups(void) c = p->all; while (c) { if (c->Y && c->start_time <= we->time && c->end_time >= we->time) { - if (p->pid == we->waker) + if (p->pid == we->waker) { from = c->Y; - if (p->pid == we->wakee) + task_from = c->comm; + } + if (p->pid == we->wakee) { to = c->Y; + task_to = c->comm; + } } c = c->next; } @@ -776,7 +781,7 @@ static void draw_wakeups(void) else if (from && to && abs(from - to) == 1) svg_wakeline(we->time, from, to); else - svg_partial_wakeline(we->time, from, to); + svg_partial_wakeline(we->time, from, task_from, to, task_to); we = we->next; } } diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c index b0fcecd..9f70fa8 100644 --- a/tools/perf/util/svghelper.c +++ b/tools/perf/util/svghelper.c @@ -242,7 +242,7 @@ void svg_pstate(int cpu, u64 start, u64 end, u64 freq) } -void svg_partial_wakeline(u64 start, int row1, int row2) +void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2) { double height; @@ -251,21 +251,35 @@ void svg_partial_wakeline(u64 start, int row1, int row2) if (row1 < row2) { - if (row1) + if (row1) { fprintf(svgfile, "\n", time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32); - - if (row2) + if (desc2) + fprintf(svgfile, "%s >\n", + time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2); + } + if (row2) { fprintf(svgfile, "\n", time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT); + if (desc1) + fprintf(svgfile, "%s >\n", + time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1); + } } else { - if (row2) + if (row2) { fprintf(svgfile, "\n", time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32); - - if (row1) + if (desc1) + fprintf(svgfile, "%s <\n", + time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1); + } + if (row1) { fprintf(svgfile, "\n", time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT); + if (desc2) + fprintf(svgfile, "%s <\n", + time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2); + } } height = row1 * SLOT_MULT; if (row2 > row1) diff --git a/tools/perf/util/svghelper.h b/tools/perf/util/svghelper.h index ad79b5d..8260a7e 100644 --- a/tools/perf/util/svghelper.h +++ b/tools/perf/util/svghelper.h @@ -17,7 +17,7 @@ extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq); extern void svg_time_grid(u64 start, u64 end); extern void svg_legenda(void); extern void svg_wakeline(u64 start, int row1, int row2); -extern void svg_partial_wakeline(u64 start, int row1, int row2); +extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2); extern void svg_interrupt(u64 start, int row); extern void svg_text(int Yslot, u64 start, const char *text); extern void svg_close(void); -- 2.7.4