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-rw-r--r--arch/x86/mm/pf_in.c30
-rw-r--r--include/trace/ftrace.h7
-rw-r--r--kernel/trace/trace_event_perf.c6
-rw-r--r--tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py30
-rw-r--r--tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py184
-rw-r--r--tools/perf/scripts/python/bin/sched-migration-record2
-rw-r--r--tools/perf/scripts/python/bin/sched-migration-report3
-rw-r--r--tools/perf/scripts/python/sched-migration.py461
8 files changed, 702 insertions, 21 deletions
diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
index 308e32570d84..38e6d174c497 100644
--- a/arch/x86/mm/pf_in.c
+++ b/arch/x86/mm/pf_in.c
@@ -40,16 +40,16 @@ static unsigned char prefix_codes[] = {
40static unsigned int reg_rop[] = { 40static unsigned int reg_rop[] = {
41 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F 41 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
42}; 42};
43static unsigned int reg_wop[] = { 0x88, 0x89 }; 43static unsigned int reg_wop[] = { 0x88, 0x89, 0xAA, 0xAB };
44static unsigned int imm_wop[] = { 0xC6, 0xC7 }; 44static unsigned int imm_wop[] = { 0xC6, 0xC7 };
45/* IA32 Manual 3, 3-432*/ 45/* IA32 Manual 3, 3-432*/
46static unsigned int rw8[] = { 0x88, 0x8A, 0xC6 }; 46static unsigned int rw8[] = { 0x88, 0x8A, 0xC6, 0xAA };
47static unsigned int rw32[] = { 47static unsigned int rw32[] = {
48 0x89, 0x8B, 0xC7, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F 48 0x89, 0x8B, 0xC7, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F, 0xAB
49}; 49};
50static unsigned int mw8[] = { 0x88, 0x8A, 0xC6, 0xB60F, 0xBE0F }; 50static unsigned int mw8[] = { 0x88, 0x8A, 0xC6, 0xB60F, 0xBE0F, 0xAA };
51static unsigned int mw16[] = { 0xB70F, 0xBF0F }; 51static unsigned int mw16[] = { 0xB70F, 0xBF0F };
52static unsigned int mw32[] = { 0x89, 0x8B, 0xC7 }; 52static unsigned int mw32[] = { 0x89, 0x8B, 0xC7, 0xAB };
53static unsigned int mw64[] = {}; 53static unsigned int mw64[] = {};
54#else /* not __i386__ */ 54#else /* not __i386__ */
55static unsigned char prefix_codes[] = { 55static unsigned char prefix_codes[] = {
@@ -63,20 +63,20 @@ static unsigned char prefix_codes[] = {
63static unsigned int reg_rop[] = { 63static unsigned int reg_rop[] = {
64 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F 64 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
65}; 65};
66static unsigned int reg_wop[] = { 0x88, 0x89 }; 66static unsigned int reg_wop[] = { 0x88, 0x89, 0xAA, 0xAB };
67static unsigned int imm_wop[] = { 0xC6, 0xC7 }; 67static unsigned int imm_wop[] = { 0xC6, 0xC7 };
68static unsigned int rw8[] = { 0xC6, 0x88, 0x8A }; 68static unsigned int rw8[] = { 0xC6, 0x88, 0x8A, 0xAA };
69static unsigned int rw32[] = { 69static unsigned int rw32[] = {
70 0xC7, 0x89, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F 70 0xC7, 0x89, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F, 0xAB
71}; 71};
72/* 8 bit only */ 72/* 8 bit only */
73static unsigned int mw8[] = { 0xC6, 0x88, 0x8A, 0xB60F, 0xBE0F }; 73static unsigned int mw8[] = { 0xC6, 0x88, 0x8A, 0xB60F, 0xBE0F, 0xAA };
74/* 16 bit only */ 74/* 16 bit only */
75static unsigned int mw16[] = { 0xB70F, 0xBF0F }; 75static unsigned int mw16[] = { 0xB70F, 0xBF0F };
76/* 16 or 32 bit */ 76/* 16 or 32 bit */
77static unsigned int mw32[] = { 0xC7 }; 77static unsigned int mw32[] = { 0xC7 };
78/* 16, 32 or 64 bit */ 78/* 16, 32 or 64 bit */
79static unsigned int mw64[] = { 0x89, 0x8B }; 79static unsigned int mw64[] = { 0x89, 0x8B, 0xAB };
80#endif /* not __i386__ */ 80#endif /* not __i386__ */
81 81
82struct prefix_bits { 82struct prefix_bits {
@@ -410,7 +410,6 @@ static unsigned long *get_reg_w32(int no, struct pt_regs *regs)
410unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs) 410unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
411{ 411{
412 unsigned int opcode; 412 unsigned int opcode;
413 unsigned char mod_rm;
414 int reg; 413 int reg;
415 unsigned char *p; 414 unsigned char *p;
416 struct prefix_bits prf; 415 struct prefix_bits prf;
@@ -437,8 +436,13 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
437 goto err; 436 goto err;
438 437
439do_work: 438do_work:
440 mod_rm = *p; 439 /* for STOS, source register is fixed */
441 reg = ((mod_rm >> 3) & 0x7) | (prf.rexr << 3); 440 if (opcode == 0xAA || opcode == 0xAB) {
441 reg = arg_AX;
442 } else {
443 unsigned char mod_rm = *p;
444 reg = ((mod_rm >> 3) & 0x7) | (prf.rexr << 3);
445 }
442 switch (get_ins_reg_width(ins_addr)) { 446 switch (get_ins_reg_width(ins_addr)) {
443 case 1: 447 case 1:
444 return *get_reg_w8(reg, prf.rex, regs); 448 return *get_reg_w8(reg, prf.rex, regs);
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index fb783d94fc54..a9377c0083ad 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -75,15 +75,12 @@
75#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 75#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
76 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) 76 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
77 77
78#undef __cpparg
79#define __cpparg(arg...) arg
80
81/* Callbacks are meaningless to ftrace. */ 78/* Callbacks are meaningless to ftrace. */
82#undef TRACE_EVENT_FN 79#undef TRACE_EVENT_FN
83#define TRACE_EVENT_FN(name, proto, args, tstruct, \ 80#define TRACE_EVENT_FN(name, proto, args, tstruct, \
84 assign, print, reg, unreg) \ 81 assign, print, reg, unreg) \
85 TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \ 82 TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
86 __cpparg(tstruct), __cpparg(assign), __cpparg(print)) \ 83 PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
87 84
88#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 85#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
89 86
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 23751659582e..000e6e85b445 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -131,10 +131,10 @@ void perf_trace_destroy(struct perf_event *p_event)
131 tp_event->class->reg(tp_event, TRACE_REG_PERF_UNREGISTER); 131 tp_event->class->reg(tp_event, TRACE_REG_PERF_UNREGISTER);
132 132
133 /* 133 /*
134 * Ensure our callback won't be called anymore. See 134 * Ensure our callback won't be called anymore. The buffers
135 * tracepoint_probe_unregister() and __DO_TRACE(). 135 * will be freed after that.
136 */ 136 */
137 synchronize_sched(); 137 tracepoint_synchronize_unregister();
138 138
139 free_percpu(tp_event->perf_events); 139 free_percpu(tp_event->perf_events);
140 tp_event->perf_events = NULL; 140 tp_event->perf_events = NULL;
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
index 1dc464ee2ca8..aad7525bca1d 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
@@ -89,3 +89,33 @@ def trace_flag_str(value):
89 value &= ~idx 89 value &= ~idx
90 90
91 return string 91 return string
92
93
94def taskState(state):
95 states = {
96 0 : "R",
97 1 : "S",
98 2 : "D",
99 64: "DEAD"
100 }
101
102 if state not in states:
103 return "Unknown"
104
105 return states[state]
106
107
108class EventHeaders:
109 def __init__(self, common_cpu, common_secs, common_nsecs,
110 common_pid, common_comm):
111 self.cpu = common_cpu
112 self.secs = common_secs
113 self.nsecs = common_nsecs
114 self.pid = common_pid
115 self.comm = common_comm
116
117 def ts(self):
118 return (self.secs * (10 ** 9)) + self.nsecs
119
120 def ts_format(self):
121 return "%d.%d" % (self.secs, int(self.nsecs / 1000))
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py
new file mode 100644
index 000000000000..ae9a56e43e05
--- /dev/null
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py
@@ -0,0 +1,184 @@
1# SchedGui.py - Python extension for perf trace, basic GUI code for
2# traces drawing and overview.
3#
4# Copyright (C) 2010 by Frederic Weisbecker <fweisbec@gmail.com>
5#
6# This software is distributed under the terms of the GNU General
7# Public License ("GPL") version 2 as published by the Free Software
8# Foundation.
9
10
11try:
12 import wx
13except ImportError:
14 raise ImportError, "You need to install the wxpython lib for this script"
15
16
17class RootFrame(wx.Frame):
18 Y_OFFSET = 100
19 RECT_HEIGHT = 100
20 RECT_SPACE = 50
21 EVENT_MARKING_WIDTH = 5
22
23 def __init__(self, sched_tracer, title, parent = None, id = -1):
24 wx.Frame.__init__(self, parent, id, title)
25
26 (self.screen_width, self.screen_height) = wx.GetDisplaySize()
27 self.screen_width -= 10
28 self.screen_height -= 10
29 self.zoom = 0.5
30 self.scroll_scale = 20
31 self.sched_tracer = sched_tracer
32 self.sched_tracer.set_root_win(self)
33 (self.ts_start, self.ts_end) = sched_tracer.interval()
34 self.update_width_virtual()
35 self.nr_rects = sched_tracer.nr_rectangles() + 1
36 self.height_virtual = RootFrame.Y_OFFSET + (self.nr_rects * (RootFrame.RECT_HEIGHT + RootFrame.RECT_SPACE))
37
38 # whole window panel
39 self.panel = wx.Panel(self, size=(self.screen_width, self.screen_height))
40
41 # scrollable container
42 self.scroll = wx.ScrolledWindow(self.panel)
43 self.scroll.SetScrollbars(self.scroll_scale, self.scroll_scale, self.width_virtual / self.scroll_scale, self.height_virtual / self.scroll_scale)
44 self.scroll.EnableScrolling(True, True)
45 self.scroll.SetFocus()
46
47 # scrollable drawing area
48 self.scroll_panel = wx.Panel(self.scroll, size=(self.screen_width - 15, self.screen_height / 2))
49 self.scroll_panel.Bind(wx.EVT_PAINT, self.on_paint)
50 self.scroll_panel.Bind(wx.EVT_KEY_DOWN, self.on_key_press)
51 self.scroll_panel.Bind(wx.EVT_LEFT_DOWN, self.on_mouse_down)
52 self.scroll.Bind(wx.EVT_PAINT, self.on_paint)
53 self.scroll.Bind(wx.EVT_KEY_DOWN, self.on_key_press)
54 self.scroll.Bind(wx.EVT_LEFT_DOWN, self.on_mouse_down)
55
56 self.scroll.Fit()
57 self.Fit()
58
59 self.scroll_panel.SetDimensions(-1, -1, self.width_virtual, self.height_virtual, wx.SIZE_USE_EXISTING)
60
61 self.txt = None
62
63 self.Show(True)
64
65 def us_to_px(self, val):
66 return val / (10 ** 3) * self.zoom
67
68 def px_to_us(self, val):
69 return (val / self.zoom) * (10 ** 3)
70
71 def scroll_start(self):
72 (x, y) = self.scroll.GetViewStart()
73 return (x * self.scroll_scale, y * self.scroll_scale)
74
75 def scroll_start_us(self):
76 (x, y) = self.scroll_start()
77 return self.px_to_us(x)
78
79 def paint_rectangle_zone(self, nr, color, top_color, start, end):
80 offset_px = self.us_to_px(start - self.ts_start)
81 width_px = self.us_to_px(end - self.ts_start)
82
83 offset_py = RootFrame.Y_OFFSET + (nr * (RootFrame.RECT_HEIGHT + RootFrame.RECT_SPACE))
84 width_py = RootFrame.RECT_HEIGHT
85
86 dc = self.dc
87
88 if top_color is not None:
89 (r, g, b) = top_color
90 top_color = wx.Colour(r, g, b)
91 brush = wx.Brush(top_color, wx.SOLID)
92 dc.SetBrush(brush)
93 dc.DrawRectangle(offset_px, offset_py, width_px, RootFrame.EVENT_MARKING_WIDTH)
94 width_py -= RootFrame.EVENT_MARKING_WIDTH
95 offset_py += RootFrame.EVENT_MARKING_WIDTH
96
97 (r ,g, b) = color
98 color = wx.Colour(r, g, b)
99 brush = wx.Brush(color, wx.SOLID)
100 dc.SetBrush(brush)
101 dc.DrawRectangle(offset_px, offset_py, width_px, width_py)
102
103 def update_rectangles(self, dc, start, end):
104 start += self.ts_start
105 end += self.ts_start
106 self.sched_tracer.fill_zone(start, end)
107
108 def on_paint(self, event):
109 dc = wx.PaintDC(self.scroll_panel)
110 self.dc = dc
111
112 width = min(self.width_virtual, self.screen_width)
113 (x, y) = self.scroll_start()
114 start = self.px_to_us(x)
115 end = self.px_to_us(x + width)
116 self.update_rectangles(dc, start, end)
117
118 def rect_from_ypixel(self, y):
119 y -= RootFrame.Y_OFFSET
120 rect = y / (RootFrame.RECT_HEIGHT + RootFrame.RECT_SPACE)
121 height = y % (RootFrame.RECT_HEIGHT + RootFrame.RECT_SPACE)
122
123 if rect < 0 or rect > self.nr_rects - 1 or height > RootFrame.RECT_HEIGHT:
124 return -1
125
126 return rect
127
128 def update_summary(self, txt):
129 if self.txt:
130 self.txt.Destroy()
131 self.txt = wx.StaticText(self.panel, -1, txt, (0, (self.screen_height / 2) + 50))
132
133
134 def on_mouse_down(self, event):
135 (x, y) = event.GetPositionTuple()
136 rect = self.rect_from_ypixel(y)
137 if rect == -1:
138 return
139
140 t = self.px_to_us(x) + self.ts_start
141
142 self.sched_tracer.mouse_down(rect, t)
143
144
145 def update_width_virtual(self):
146 self.width_virtual = self.us_to_px(self.ts_end - self.ts_start)
147
148 def __zoom(self, x):
149 self.update_width_virtual()
150 (xpos, ypos) = self.scroll.GetViewStart()
151 xpos = self.us_to_px(x) / self.scroll_scale
152 self.scroll.SetScrollbars(self.scroll_scale, self.scroll_scale, self.width_virtual / self.scroll_scale, self.height_virtual / self.scroll_scale, xpos, ypos)
153 self.Refresh()
154
155 def zoom_in(self):
156 x = self.scroll_start_us()
157 self.zoom *= 2
158 self.__zoom(x)
159
160 def zoom_out(self):
161 x = self.scroll_start_us()
162 self.zoom /= 2
163 self.__zoom(x)
164
165
166 def on_key_press(self, event):
167 key = event.GetRawKeyCode()
168 if key == ord("+"):
169 self.zoom_in()
170 return
171 if key == ord("-"):
172 self.zoom_out()
173 return
174
175 key = event.GetKeyCode()
176 (x, y) = self.scroll.GetViewStart()
177 if key == wx.WXK_RIGHT:
178 self.scroll.Scroll(x + 1, y)
179 elif key == wx.WXK_LEFT:
180 self.scroll.Scroll(x - 1, y)
181 elif key == wx.WXK_DOWN:
182 self.scroll.Scroll(x, y + 1)
183 elif key == wx.WXK_UP:
184 self.scroll.Scroll(x, y - 1)
diff --git a/tools/perf/scripts/python/bin/sched-migration-record b/tools/perf/scripts/python/bin/sched-migration-record
new file mode 100644
index 000000000000..17a3e9bd9e8f
--- /dev/null
+++ b/tools/perf/scripts/python/bin/sched-migration-record
@@ -0,0 +1,2 @@
1#!/bin/bash
2perf record -m 16384 -a -e sched:sched_wakeup -e sched:sched_wakeup_new -e sched:sched_switch -e sched:sched_migrate_task $@
diff --git a/tools/perf/scripts/python/bin/sched-migration-report b/tools/perf/scripts/python/bin/sched-migration-report
new file mode 100644
index 000000000000..61d05f72e443
--- /dev/null
+++ b/tools/perf/scripts/python/bin/sched-migration-report
@@ -0,0 +1,3 @@
1#!/bin/bash
2# description: sched migration overview
3perf trace $@ -s ~/libexec/perf-core/scripts/python/sched-migration.py
diff --git a/tools/perf/scripts/python/sched-migration.py b/tools/perf/scripts/python/sched-migration.py
new file mode 100644
index 000000000000..b934383c3364
--- /dev/null
+++ b/tools/perf/scripts/python/sched-migration.py
@@ -0,0 +1,461 @@
1#!/usr/bin/python
2#
3# Cpu task migration overview toy
4#
5# Copyright (C) 2010 Frederic Weisbecker <fweisbec@gmail.com>
6#
7# perf trace event handlers have been generated by perf trace -g python
8#
9# This software is distributed under the terms of the GNU General
10# Public License ("GPL") version 2 as published by the Free Software
11# Foundation.
12
13
14import os
15import sys
16
17from collections import defaultdict
18from UserList import UserList
19
20sys.path.append(os.environ['PERF_EXEC_PATH'] + \
21 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
22sys.path.append('scripts/python/Perf-Trace-Util/lib/Perf/Trace')
23
24from perf_trace_context import *
25from Core import *
26from SchedGui import *
27
28
29threads = { 0 : "idle"}
30
31def thread_name(pid):
32 return "%s:%d" % (threads[pid], pid)
33
34class RunqueueEventUnknown:
35 @staticmethod
36 def color():
37 return None
38
39 def __repr__(self):
40 return "unknown"
41
42class RunqueueEventSleep:
43 @staticmethod
44 def color():
45 return (0, 0, 0xff)
46
47 def __init__(self, sleeper):
48 self.sleeper = sleeper
49
50 def __repr__(self):
51 return "%s gone to sleep" % thread_name(self.sleeper)
52
53class RunqueueEventWakeup:
54 @staticmethod
55 def color():
56 return (0xff, 0xff, 0)
57
58 def __init__(self, wakee):
59 self.wakee = wakee
60
61 def __repr__(self):
62 return "%s woke up" % thread_name(self.wakee)
63
64class RunqueueEventFork:
65 @staticmethod
66 def color():
67 return (0, 0xff, 0)
68
69 def __init__(self, child):
70 self.child = child
71
72 def __repr__(self):
73 return "new forked task %s" % thread_name(self.child)
74
75class RunqueueMigrateIn:
76 @staticmethod
77 def color():
78 return (0, 0xf0, 0xff)
79
80 def __init__(self, new):
81 self.new = new
82
83 def __repr__(self):
84 return "task migrated in %s" % thread_name(self.new)
85
86class RunqueueMigrateOut:
87 @staticmethod
88 def color():
89 return (0xff, 0, 0xff)
90
91 def __init__(self, old):
92 self.old = old
93
94 def __repr__(self):
95 return "task migrated out %s" % thread_name(self.old)
96
97class RunqueueSnapshot:
98 def __init__(self, tasks = [0], event = RunqueueEventUnknown()):
99 self.tasks = tuple(tasks)
100 self.event = event
101
102 def sched_switch(self, prev, prev_state, next):
103 event = RunqueueEventUnknown()
104
105 if taskState(prev_state) == "R" and next in self.tasks \
106 and prev in self.tasks:
107 return self
108
109 if taskState(prev_state) != "R":
110 event = RunqueueEventSleep(prev)
111
112 next_tasks = list(self.tasks[:])
113 if prev in self.tasks:
114 if taskState(prev_state) != "R":
115 next_tasks.remove(prev)
116 elif taskState(prev_state) == "R":
117 next_tasks.append(prev)
118
119 if next not in next_tasks:
120 next_tasks.append(next)
121
122 return RunqueueSnapshot(next_tasks, event)
123
124 def migrate_out(self, old):
125 if old not in self.tasks:
126 return self
127 next_tasks = [task for task in self.tasks if task != old]
128
129 return RunqueueSnapshot(next_tasks, RunqueueMigrateOut(old))
130
131 def __migrate_in(self, new, event):
132 if new in self.tasks:
133 self.event = event
134 return self
135 next_tasks = self.tasks[:] + tuple([new])
136
137 return RunqueueSnapshot(next_tasks, event)
138
139 def migrate_in(self, new):
140 return self.__migrate_in(new, RunqueueMigrateIn(new))
141
142 def wake_up(self, new):
143 return self.__migrate_in(new, RunqueueEventWakeup(new))
144
145 def wake_up_new(self, new):
146 return self.__migrate_in(new, RunqueueEventFork(new))
147
148 def load(self):
149 """ Provide the number of tasks on the runqueue.
150 Don't count idle"""
151 return len(self.tasks) - 1
152
153 def __repr__(self):
154 ret = self.tasks.__repr__()
155 ret += self.origin_tostring()
156
157 return ret
158
159class TimeSlice:
160 def __init__(self, start, prev):
161 self.start = start
162 self.prev = prev
163 self.end = start
164 # cpus that triggered the event
165 self.event_cpus = []
166 if prev is not None:
167 self.total_load = prev.total_load
168 self.rqs = prev.rqs.copy()
169 else:
170 self.rqs = defaultdict(RunqueueSnapshot)
171 self.total_load = 0
172
173 def __update_total_load(self, old_rq, new_rq):
174 diff = new_rq.load() - old_rq.load()
175 self.total_load += diff
176
177 def sched_switch(self, ts_list, prev, prev_state, next, cpu):
178 old_rq = self.prev.rqs[cpu]
179 new_rq = old_rq.sched_switch(prev, prev_state, next)
180
181 if old_rq is new_rq:
182 return
183
184 self.rqs[cpu] = new_rq
185 self.__update_total_load(old_rq, new_rq)
186 ts_list.append(self)
187 self.event_cpus = [cpu]
188
189 def migrate(self, ts_list, new, old_cpu, new_cpu):
190 if old_cpu == new_cpu:
191 return
192 old_rq = self.prev.rqs[old_cpu]
193 out_rq = old_rq.migrate_out(new)
194 self.rqs[old_cpu] = out_rq
195 self.__update_total_load(old_rq, out_rq)
196
197 new_rq = self.prev.rqs[new_cpu]
198 in_rq = new_rq.migrate_in(new)
199 self.rqs[new_cpu] = in_rq
200 self.__update_total_load(new_rq, in_rq)
201
202 ts_list.append(self)
203
204 if old_rq is not out_rq:
205 self.event_cpus.append(old_cpu)
206 self.event_cpus.append(new_cpu)
207
208 def wake_up(self, ts_list, pid, cpu, fork):
209 old_rq = self.prev.rqs[cpu]
210 if fork:
211 new_rq = old_rq.wake_up_new(pid)
212 else:
213 new_rq = old_rq.wake_up(pid)
214
215 if new_rq is old_rq:
216 return
217 self.rqs[cpu] = new_rq
218 self.__update_total_load(old_rq, new_rq)
219 ts_list.append(self)
220 self.event_cpus = [cpu]
221
222 def next(self, t):
223 self.end = t
224 return TimeSlice(t, self)
225
226class TimeSliceList(UserList):
227 def __init__(self, arg = []):
228 self.data = arg
229
230 def get_time_slice(self, ts):
231 if len(self.data) == 0:
232 slice = TimeSlice(ts, TimeSlice(-1, None))
233 else:
234 slice = self.data[-1].next(ts)
235 return slice
236
237 def find_time_slice(self, ts):
238 start = 0
239 end = len(self.data)
240 found = -1
241 searching = True
242 while searching:
243 if start == end or start == end - 1:
244 searching = False
245
246 i = (end + start) / 2
247 if self.data[i].start <= ts and self.data[i].end >= ts:
248 found = i
249 end = i
250 continue
251
252 if self.data[i].end < ts:
253 start = i
254
255 elif self.data[i].start > ts:
256 end = i
257
258 return found
259
260 def set_root_win(self, win):
261 self.root_win = win
262
263 def mouse_down(self, cpu, t):
264 idx = self.find_time_slice(t)
265 if idx == -1:
266 return
267
268 ts = self[idx]
269 rq = ts.rqs[cpu]
270 raw = "CPU: %d\n" % cpu
271 raw += "Last event : %s\n" % rq.event.__repr__()
272 raw += "Timestamp : %d.%06d\n" % (ts.start / (10 ** 9), (ts.start % (10 ** 9)) / 1000)
273 raw += "Duration : %6d us\n" % ((ts.end - ts.start) / (10 ** 6))
274 raw += "Load = %d\n" % rq.load()
275 for t in rq.tasks:
276 raw += "%s \n" % thread_name(t)
277
278 self.root_win.update_summary(raw)
279
280 def update_rectangle_cpu(self, slice, cpu):
281 rq = slice.rqs[cpu]
282
283 if slice.total_load != 0:
284 load_rate = rq.load() / float(slice.total_load)
285 else:
286 load_rate = 0
287
288 red_power = int(0xff - (0xff * load_rate))
289 color = (0xff, red_power, red_power)
290
291 top_color = None
292
293 if cpu in slice.event_cpus:
294 top_color = rq.event.color()
295
296 self.root_win.paint_rectangle_zone(cpu, color, top_color, slice.start, slice.end)
297
298 def fill_zone(self, start, end):
299 i = self.find_time_slice(start)
300 if i == -1:
301 return
302
303 for i in xrange(i, len(self.data)):
304 timeslice = self.data[i]
305 if timeslice.start > end:
306 return
307
308 for cpu in timeslice.rqs:
309 self.update_rectangle_cpu(timeslice, cpu)
310
311 def interval(self):
312 if len(self.data) == 0:
313 return (0, 0)
314
315 return (self.data[0].start, self.data[-1].end)
316
317 def nr_rectangles(self):
318 last_ts = self.data[-1]
319 max_cpu = 0
320 for cpu in last_ts.rqs:
321 if cpu > max_cpu:
322 max_cpu = cpu
323 return max_cpu
324
325
326class SchedEventProxy:
327 def __init__(self):
328 self.current_tsk = defaultdict(lambda : -1)
329 self.timeslices = TimeSliceList()
330
331 def sched_switch(self, headers, prev_comm, prev_pid, prev_prio, prev_state,
332 next_comm, next_pid, next_prio):
333 """ Ensure the task we sched out this cpu is really the one
334 we logged. Otherwise we may have missed traces """
335
336 on_cpu_task = self.current_tsk[headers.cpu]
337
338 if on_cpu_task != -1 and on_cpu_task != prev_pid:
339 print "Sched switch event rejected ts: %s cpu: %d prev: %s(%d) next: %s(%d)" % \
340 (headers.ts_format(), headers.cpu, prev_comm, prev_pid, next_comm, next_pid)
341
342 threads[prev_pid] = prev_comm
343 threads[next_pid] = next_comm
344 self.current_tsk[headers.cpu] = next_pid
345
346 ts = self.timeslices.get_time_slice(headers.ts())
347 ts.sched_switch(self.timeslices, prev_pid, prev_state, next_pid, headers.cpu)
348
349 def migrate(self, headers, pid, prio, orig_cpu, dest_cpu):
350 ts = self.timeslices.get_time_slice(headers.ts())
351 ts.migrate(self.timeslices, pid, orig_cpu, dest_cpu)
352
353 def wake_up(self, headers, comm, pid, success, target_cpu, fork):
354 if success == 0:
355 return
356 ts = self.timeslices.get_time_slice(headers.ts())
357 ts.wake_up(self.timeslices, pid, target_cpu, fork)
358
359
360def trace_begin():
361 global parser
362 parser = SchedEventProxy()
363
364def trace_end():
365 app = wx.App(False)
366 timeslices = parser.timeslices
367 frame = RootFrame(timeslices, "Migration")
368 app.MainLoop()
369
370def sched__sched_stat_runtime(event_name, context, common_cpu,
371 common_secs, common_nsecs, common_pid, common_comm,
372 comm, pid, runtime, vruntime):
373 pass
374
375def sched__sched_stat_iowait(event_name, context, common_cpu,
376 common_secs, common_nsecs, common_pid, common_comm,
377 comm, pid, delay):
378 pass
379
380def sched__sched_stat_sleep(event_name, context, common_cpu,
381 common_secs, common_nsecs, common_pid, common_comm,
382 comm, pid, delay):
383 pass
384
385def sched__sched_stat_wait(event_name, context, common_cpu,
386 common_secs, common_nsecs, common_pid, common_comm,
387 comm, pid, delay):
388 pass
389
390def sched__sched_process_fork(event_name, context, common_cpu,
391 common_secs, common_nsecs, common_pid, common_comm,
392 parent_comm, parent_pid, child_comm, child_pid):
393 pass
394
395def sched__sched_process_wait(event_name, context, common_cpu,
396 common_secs, common_nsecs, common_pid, common_comm,
397 comm, pid, prio):
398 pass
399
400def sched__sched_process_exit(event_name, context, common_cpu,
401 common_secs, common_nsecs, common_pid, common_comm,
402 comm, pid, prio):
403 pass
404
405def sched__sched_process_free(event_name, context, common_cpu,
406 common_secs, common_nsecs, common_pid, common_comm,
407 comm, pid, prio):
408 pass
409
410def sched__sched_migrate_task(event_name, context, common_cpu,
411 common_secs, common_nsecs, common_pid, common_comm,
412 comm, pid, prio, orig_cpu,
413 dest_cpu):
414 headers = EventHeaders(common_cpu, common_secs, common_nsecs,
415 common_pid, common_comm)
416 parser.migrate(headers, pid, prio, orig_cpu, dest_cpu)
417
418def sched__sched_switch(event_name, context, common_cpu,
419 common_secs, common_nsecs, common_pid, common_comm,
420 prev_comm, prev_pid, prev_prio, prev_state,
421 next_comm, next_pid, next_prio):
422
423 headers = EventHeaders(common_cpu, common_secs, common_nsecs,
424 common_pid, common_comm)
425 parser.sched_switch(headers, prev_comm, prev_pid, prev_prio, prev_state,
426 next_comm, next_pid, next_prio)
427
428def sched__sched_wakeup_new(event_name, context, common_cpu,
429 common_secs, common_nsecs, common_pid, common_comm,
430 comm, pid, prio, success,
431 target_cpu):
432 headers = EventHeaders(common_cpu, common_secs, common_nsecs,
433 common_pid, common_comm)
434 parser.wake_up(headers, comm, pid, success, target_cpu, 1)
435
436def sched__sched_wakeup(event_name, context, common_cpu,
437 common_secs, common_nsecs, common_pid, common_comm,
438 comm, pid, prio, success,
439 target_cpu):
440 headers = EventHeaders(common_cpu, common_secs, common_nsecs,
441 common_pid, common_comm)
442 parser.wake_up(headers, comm, pid, success, target_cpu, 0)
443
444def sched__sched_wait_task(event_name, context, common_cpu,
445 common_secs, common_nsecs, common_pid, common_comm,
446 comm, pid, prio):
447 pass
448
449def sched__sched_kthread_stop_ret(event_name, context, common_cpu,
450 common_secs, common_nsecs, common_pid, common_comm,
451 ret):
452 pass
453
454def sched__sched_kthread_stop(event_name, context, common_cpu,
455 common_secs, common_nsecs, common_pid, common_comm,
456 comm, pid):
457 pass
458
459def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
460 common_pid, common_comm):
461 pass