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perf, sched migration: Parameterize cpu height and spacing 

Without vertical zoom, it is not possible to see all CPUs in a trace
taken on a larger machine. This patch parameterizes the height and
spacing of CPUs so that you can fit more cpus into the screen.

Ideally we should dynamically size/space the CPU rectangles with some
minimum threshold. Until then, this patch is a stop-gap.

Signed-off-by: Nikhil Rao <ncrao@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Nikhil Rao 2010-07-21 19:46:27 -07:00 committed by Frederic Weisbecker
parent be6d947691
commit 0cddf56aa8
1 changed files with 14 additions and 9 deletions
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23
tools/perf/scripts/python/sched-migration.py
View File

@ -27,6 +27,11 @@ from perf_trace_context import *
from Core import *
class RootFrame(wx.Frame):
Y_OFFSET = 100
CPU_HEIGHT = 100
CPU_SPACE = 50
EVENT_MARKING_WIDTH = 5
def __init__(self, timeslices, parent = None, id = -1, title = "Migration"):
wx.Frame.__init__(self, parent, id, title)
@ -97,8 +102,8 @@ class RootFrame(wx.Frame):
if width_px == 0:
return
offset_py = 100 + (cpu * 150)
width_py = 100
offset_py = RootFrame.Y_OFFSET + (cpu * (RootFrame.CPU_HEIGHT + RootFrame.CPU_SPACE))
width_py = RootFrame.CPU_HEIGHT
if cpu in slice.event_cpus:
rgb = rq.event.color()
@ -107,9 +112,9 @@ class RootFrame(wx.Frame):
color = wx.Colour(r, g, b)
brush = wx.Brush(color, wx.SOLID)
dc.SetBrush(brush)
dc.DrawRectangle(offset_px, offset_py, width_px, 5)
width_py -= 5
offset_py += 5
dc.DrawRectangle(offset_px, offset_py, width_px, RootFrame.EVENT_MARKING_WIDTH)
width_py -= RootFrame.EVENT_MARKING_WIDTH
offset_py += RootFrame.EVENT_MARKING_WIDTH
red_power = int(0xff - (0xff * load_rate))
color = wx.Colour(0xff, red_power, red_power)
@ -154,11 +159,11 @@ class RootFrame(wx.Frame):
self.update_rectangles(dc, start, end)
def cpu_from_ypixel(self, y):
y -= 100
cpu = y / 150
height = y % 150
y -= RootFrame.Y_OFFSET
cpu = y / (RootFrame.CPU_HEIGHT + RootFrame.CPU_SPACE)
height = y % (RootFrame.CPU_HEIGHT + RootFrame.CPU_SPACE)
if cpu < 0 or cpu > self.max_cpu or height > 100:
if cpu < 0 or cpu > self.max_cpu or height > RootFrame.CPU_HEIGHT:
return -1
return cpu