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authorArjan van de Ven <arjan@linux.intel.com>2009-09-20 18:13:28 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-20 19:37:34 +0200
commit4f1202c8e61478984ed2d0df616149faf84c2a7f (patch)
tree540fb2e48d8b55bda2db75a61085908401453ac0 /tools
parentcdf8073d6b2c6c5a3cd6ce0e6c1297157f7f99ba (diff)
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@linux.intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090920181328.68baa978@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-timechart.c11
-rw-r--r--tools/perf/util/svghelper.c28
-rw-r--r--tools/perf/util/svghelper.h2
3 files changed, 30 insertions, 11 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 58d737ec8f5..3f45b8b24e3 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 b0fcecdf378..9f70fa8e764 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 &gt;</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 &gt;</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 &lt;</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 &lt;</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 ad79b5dc53d..8260a7e6e31 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);