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draw a time axis on vipsprofile

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and set the start time correctly
This commit is contained in:
John Cupitt 2013-12-08 03:41:01 +00:00
parent a011287e75
commit 131594dde8
1 changed files with 39 additions and 6 deletions
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45
tools/vipsprofile
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@ -125,18 +125,25 @@ for thread in threads:
print 'loaded %d events' % n_events
# normalise time axis to secs of computation
# move time axis to secs of computation
ticks_per_sec = 1000000.0
start_time = threads[0].events[0].start
first_time = threads[0].events[0].start
last_time = 0
for thread in threads:
for event in thread.events:
event.start = (event.start - start_time) / ticks_per_sec
event.stop = (event.stop - start_time) / ticks_per_sec
if event.start < first_time:
first_time = event.start
if event.stop > last_time:
last_time = event.stop
for thread in threads:
for event in thread.events:
event.start = (event.start - first_time) / ticks_per_sec
event.stop = (event.stop - first_time) / ticks_per_sec
last_time = (last_time - first_time) / ticks_per_sec
first_time = 0
print 'last time =', last_time
# calculate some simple stats
@ -300,7 +307,6 @@ def draw_event(ctx, event):
if not event.wait and not event.work:
xbearing, ybearing, twidth, theight, xadvance, yadvance = \
ctx.text_extents(event.gate_name)
ctx.move_to(left + width / 2 - twidth / 2, top + 3 * BAR_HEIGHT)
ctx.set_source_rgb(1.00, 0.83, 0.00)
ctx.show_text(event.gate_name)
@ -322,4 +328,31 @@ for thread in threads:
for event in thread.events:
draw_event(ctx, event)
ctx.rectangle(LEFT_BORDER, total_y * PIXELS_PER_GATE,
last_time * PIXELS_PER_SECOND, 1)
ctx.set_source_rgb(1.00, 1.00, 1.00)
ctx.fill()
label = "time"
xbearing, ybearing, twidth, theight, xadvance, yadvance = \
ctx.text_extents(label)
ctx.move_to(0, total_y * PIXELS_PER_GATE + theight + 8)
ctx.set_source_rgb(1.00, 1.00, 1.00)
ctx.show_text(label)
for t in range(0, int(last_time * PIXELS_PER_SECOND), PIXELS_PER_SECOND / 10):
left = t + LEFT_BORDER
top = total_y * PIXELS_PER_GATE
ctx.rectangle(left, top, 1, 5)
ctx.set_source_rgb(1.00, 1.00, 1.00)
ctx.fill()
label = str(float(t) / PIXELS_PER_SECOND)
xbearing, ybearing, twidth, theight, xadvance, yadvance = \
ctx.text_extents(label)
ctx.move_to(left - twidth / 2, top + theight + 8)
ctx.set_source_rgb(1.00, 1.00, 1.00)
ctx.show_text(label)
surface.finish()