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Commit 0cddf56a authored by Nikhil Rao's avatar Nikhil Rao Committed by Frederic Weisbecker
Browse files

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: default avatarNikhil 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: default avatarFrederic Weisbecker <fweisbec@gmail.com>
parent be6d9476

tools/perf/scripts/python/sched-migration.py

+14 −9
Original line number Diff line number Diff line
@@ -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