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Date: Sun, 20 Sep 2009 18:13:28 +0200
From: Arjan van de Ven <arjan@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: Arjan van de Ven <arjan@...radead.org>, paulus@...ba.org,
ahpa@...or.com, mingo@...hat.com, tglx@...utronix.de, mingo@...e.hu
Subject: [PATCH] perf timechart: Show the name of the waker/wakee in
timechart
>From 2d1556e254839707ef701edf21ec8e8116137019 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@...ux.intel.com>
Date: Sat, 19 Sep 2009 19:31:12 +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 <arjan@...ux.intel.com>
---
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, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
-
- if (row2)
+ if (desc2)
+ fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s ></text>\n",
+ time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
+ }
+ if (row2) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
+ if (desc1)
+ fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s ></text>\n",
+ time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
+ }
} else {
- if (row2)
+ if (row2) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
-
- if (row1)
+ if (desc1)
+ fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s <</text>\n",
+ time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
+ }
+ if (row1) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
+ if (desc2)
+ fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"0.02pt\">%s <</text>\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);
--
1.6.0.6
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
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