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analyze_suspend.py
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analyze_suspend.py
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#!/usr/bin/python
#
# Tool for analyzing suspend/resume timing
# Copyright (c) 2013, Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
#
# Authors:
# Todd Brandt <[email protected]>
#
# Links:
# Home Page
# https://01.org/suspendresume
# Source repo
# https://github.com/01org/suspendresume
# Documentation
# Getting Started
# https://01.org/suspendresume/documentation/getting-started
# Command List:
# https://01.org/suspendresume/documentation/command-list
#
# Description:
# This tool is designed to assist kernel and OS developers in optimizing
# their linux stack's suspend/resume time. Using a kernel image built
# with a few extra options enabled, the tool will execute a suspend and
# will capture dmesg and ftrace data until resume is complete. This data
# is transformed into a device timeline and a callgraph to give a quick
# and detailed view of which devices and callbacks are taking the most
# time in suspend/resume. The output is a single html file which can be
# viewed in firefox or chrome.
#
# The following kernel build options are required:
# CONFIG_PM_DEBUG=y
# CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_FTRACE=y
# CONFIG_FUNCTION_TRACER=y
# CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_KPROBES=y
# CONFIG_KPROBES_ON_FTRACE=y
#
# For kernel versions older than 3.15:
# The following additional kernel parameters are required:
# (e.g. in file /etc/default/grub)
# GRUB_CMDLINE_LINUX_DEFAULT="... initcall_debug log_buf_len=16M ..."
#
# ----------------- LIBRARIES --------------------
import sys
import time
import os
import string
import re
import platform
from datetime import datetime
import struct
import ConfigParser
# ----------------- CLASSES --------------------
# Class: SystemValues
# Description:
# A global, single-instance container used to
# store system values and test parameters
class SystemValues:
ansi = False
version = '4.2'
verbose = False
addlogs = False
mindevlen = 0.001
mincglen = 1.0
srgap = 0
cgexp = False
outdir = ''
testdir = '.'
tpath = '/sys/kernel/debug/tracing/'
fpdtpath = '/sys/firmware/acpi/tables/FPDT'
epath = '/sys/kernel/debug/tracing/events/power/'
traceevents = [
'suspend_resume',
'device_pm_callback_end',
'device_pm_callback_start'
]
testcommand = ''
mempath = '/dev/mem'
powerfile = '/sys/power/state'
suspendmode = 'mem'
hostname = 'localhost'
prefix = 'test'
teststamp = ''
dmesgstart = 0.0
dmesgfile = ''
ftracefile = ''
htmlfile = ''
embedded = False
rtcwake = False
rtcwaketime = 10
rtcpath = ''
devicefilter = []
stamp = 0
execcount = 1
x2delay = 0
usecallgraph = False
usetraceevents = False
usetraceeventsonly = False
usetracemarkers = True
usekprobes = True
usedevsrc = False
notestrun = False
devprops = dict()
postresumetime = 0
devpropfmt = '# Device Properties: .*'
tracertypefmt = '# tracer: (?P<t>.*)'
firmwarefmt = '# fwsuspend (?P<s>[0-9]*) fwresume (?P<r>[0-9]*)$'
postresumefmt = '# post resume time (?P<t>[0-9]*)$'
stampfmt = '# suspend-(?P<m>[0-9]{2})(?P<d>[0-9]{2})(?P<y>[0-9]{2})-'+\
'(?P<H>[0-9]{2})(?P<M>[0-9]{2})(?P<S>[0-9]{2})'+\
' (?P<host>.*) (?P<mode>.*) (?P<kernel>.*)$'
kprobecolor = 'rgba(204,204,204,0.5)'
synccolor = 'rgba(204,204,204,0.5)'
debugfuncs = []
tracefuncs = {
'sys_sync': dict(),
'pm_prepare_console': dict(),
'pm_notifier_call_chain': dict(),
'freeze_processes': dict(),
'freeze_kernel_threads': dict(),
'pm_restrict_gfp_mask': dict(),
'acpi_suspend_begin': dict(),
'suspend_console': dict(),
'acpi_pm_prepare': dict(),
'syscore_suspend': dict(),
'arch_enable_nonboot_cpus_end': dict(),
'syscore_resume': dict(),
'acpi_pm_finish': dict(),
'resume_console': dict(),
'acpi_pm_end': dict(),
'pm_restore_gfp_mask': dict(),
'thaw_processes': dict(),
'pm_restore_console': dict(),
'CPU_OFF': {
'func':'_cpu_down',
'args_x86_64': {'cpu':'%di:s32'},
'format': 'CPU_OFF[{cpu}]',
'mask': 'CPU_.*_DOWN'
},
'CPU_ON': {
'func':'_cpu_up',
'args_x86_64': {'cpu':'%di:s32'},
'format': 'CPU_ON[{cpu}]',
'mask': 'CPU_.*_UP'
},
}
dev_tracefuncs = {
# general wait/delay/sleep
'msleep': { 'args_x86_64': {'time':'%di:s32'} },
'udelay': { 'func':'__const_udelay', 'args_x86_64': {'loops':'%di:s32'} },
'acpi_os_stall': dict(),
# ACPI
'acpi_resume_power_resources': dict(),
'acpi_ps_parse_aml': dict(),
# filesystem
'ext4_sync_fs': dict(),
# ATA
'ata_eh_recover': { 'args_x86_64': {'port':'+36(%di):s32'} },
# i915
'i915_gem_restore_gtt_mappings': dict(),
'intel_opregion_setup': dict(),
'intel_dp_detect': dict(),
'intel_hdmi_detect': dict(),
'intel_opregion_init': dict(),
}
kprobes_postresume = [
{
'name': 'ataportrst',
'func': 'ata_eh_recover',
'args': {'port':'+36(%di):s32'},
'format': 'ata{port}_port_reset',
'mask': 'ata.*_port_reset'
}
]
kprobes = dict()
timeformat = '%.3f'
def __init__(self):
# if this is a phoronix test run, set some default options
if('LOG_FILE' in os.environ and 'TEST_RESULTS_IDENTIFIER' in os.environ):
self.embedded = True
self.addlogs = True
self.htmlfile = os.environ['LOG_FILE']
self.hostname = platform.node()
if(self.hostname == ''):
self.hostname = 'localhost'
rtc = "rtc0"
if os.path.exists('/dev/rtc'):
rtc = os.readlink('/dev/rtc')
rtc = '/sys/class/rtc/'+rtc
if os.path.exists(rtc) and os.path.exists(rtc+'/date') and \
os.path.exists(rtc+'/time') and os.path.exists(rtc+'/wakealarm'):
self.rtcpath = rtc
if (hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()):
self.ansi = True
def setPrecision(self, num):
if num < 0 or num > 6:
return
self.timeformat = '%.{0}f'.format(num)
def setOutputFile(self):
if((self.htmlfile == '') and (self.dmesgfile != '')):
m = re.match('(?P<name>.*)_dmesg\.txt$', self.dmesgfile)
if(m):
self.htmlfile = m.group('name')+'.html'
if((self.htmlfile == '') and (self.ftracefile != '')):
m = re.match('(?P<name>.*)_ftrace\.txt$', self.ftracefile)
if(m):
self.htmlfile = m.group('name')+'.html'
if(self.htmlfile == ''):
self.htmlfile = 'output.html'
def initTestOutput(self, subdir, testpath=''):
self.prefix = self.hostname
v = open('/proc/version', 'r').read().strip()
kver = string.split(v)[2]
n = datetime.now()
testtime = n.strftime('suspend-%m%d%y-%H%M%S')
if not testpath:
testpath = n.strftime('suspend-%y%m%d-%H%M%S')
if(subdir != "."):
self.testdir = subdir+"/"+testpath
else:
self.testdir = testpath
self.teststamp = \
'# '+testtime+' '+self.prefix+' '+self.suspendmode+' '+kver
if(self.embedded):
self.dmesgfile = \
'/tmp/'+testtime+'_'+self.suspendmode+'_dmesg.txt'
self.ftracefile = \
'/tmp/'+testtime+'_'+self.suspendmode+'_ftrace.txt'
return
self.dmesgfile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_dmesg.txt'
self.ftracefile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_ftrace.txt'
self.htmlfile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'.html'
if not os.path.isdir(self.testdir):
os.mkdir(self.testdir)
def setDeviceFilter(self, devnames):
self.devicefilter = string.split(devnames)
def rtcWakeAlarmOn(self):
os.system('echo 0 > '+self.rtcpath+'/wakealarm')
outD = open(self.rtcpath+'/date', 'r').read().strip()
outT = open(self.rtcpath+'/time', 'r').read().strip()
mD = re.match('^(?P<y>[0-9]*)-(?P<m>[0-9]*)-(?P<d>[0-9]*)', outD)
mT = re.match('^(?P<h>[0-9]*):(?P<m>[0-9]*):(?P<s>[0-9]*)', outT)
if(mD and mT):
# get the current time from hardware
utcoffset = int((datetime.now() - datetime.utcnow()).total_seconds())
dt = datetime(\
int(mD.group('y')), int(mD.group('m')), int(mD.group('d')),
int(mT.group('h')), int(mT.group('m')), int(mT.group('s')))
nowtime = int(dt.strftime('%s')) + utcoffset
else:
# if hardware time fails, use the software time
nowtime = int(datetime.now().strftime('%s'))
alarm = nowtime + self.rtcwaketime
os.system('echo %d > %s/wakealarm' % (alarm, self.rtcpath))
def rtcWakeAlarmOff(self):
os.system('echo 0 > %s/wakealarm' % self.rtcpath)
def initdmesg(self):
# get the latest time stamp from the dmesg log
fp = os.popen('dmesg')
ktime = '0'
for line in fp:
line = line.replace('\r\n', '')
idx = line.find('[')
if idx > 1:
line = line[idx:]
m = re.match('[ \t]*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)', line)
if(m):
ktime = m.group('ktime')
fp.close()
self.dmesgstart = float(ktime)
def getdmesg(self):
# store all new dmesg lines since initdmesg was called
fp = os.popen('dmesg')
op = open(self.dmesgfile, 'a')
for line in fp:
line = line.replace('\r\n', '')
idx = line.find('[')
if idx > 1:
line = line[idx:]
m = re.match('[ \t]*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)', line)
if(not m):
continue
ktime = float(m.group('ktime'))
if ktime > self.dmesgstart:
op.write(line)
fp.close()
op.close()
def addFtraceFilterFunctions(self, file):
fp = open(file)
list = fp.read().split('\n')
fp.close()
for i in list:
if len(i) < 2:
continue
self.tracefuncs[i] = dict()
def getFtraceFilterFunctions(self, current):
rootCheck(True)
if not current:
os.system('cat '+self.tpath+'available_filter_functions')
return
fp = open(self.tpath+'available_filter_functions')
master = fp.read().split('\n')
fp.close()
if len(self.debugfuncs) > 0:
for i in self.debugfuncs:
if i in master:
print i
else:
print self.colorText(i)
else:
for i in self.tracefuncs:
if 'func' in self.tracefuncs[i]:
i = self.tracefuncs[i]['func']
if i in master:
print i
else:
print self.colorText(i)
def setFtraceFilterFunctions(self, list):
fp = open(self.tpath+'available_filter_functions')
master = fp.read().split('\n')
fp.close()
flist = ''
for i in list:
if i not in master:
continue
if ' [' in i:
flist += i.split(' ')[0]+'\n'
else:
flist += i+'\n'
fp = open(self.tpath+'set_graph_function', 'w')
fp.write(flist)
fp.close()
def kprobeMatch(self, name, target):
if name not in self.kprobes:
return False
if re.match(self.kprobes[name]['mask'], target):
return True
return False
def basicKprobe(self, name):
self.kprobes[name] = {'name': name,'func': name,'args': dict(),'format': name,'mask': name}
def defaultKprobe(self, name, kdata):
k = kdata
for field in ['name', 'format', 'mask', 'func']:
if field not in k:
k[field] = name
archargs = 'args_'+platform.machine()
if archargs in k:
k['args'] = k[archargs]
else:
k['args'] = dict()
k['format'] = name
self.kprobes[name] = k
def kprobeColor(self, name):
if name not in self.kprobes or 'color' not in self.kprobes[name]:
return ''
return self.kprobes[name]['color']
def kprobeDisplayName(self, name, dataraw):
if name not in self.kprobes:
self.basicKprobe(name)
data = ''
quote=0
# first remvoe any spaces inside quotes, and the quotes
for c in dataraw:
if c == '"':
quote = (quote + 1) % 2
if quote and c == ' ':
data += '_'
elif c != '"':
data += c
fmt, args = self.kprobes[name]['format'], self.kprobes[name]['args']
arglist = dict()
# now process the args
for arg in sorted(args):
arglist[arg] = ''
m = re.match('.* '+arg+'=(?P<arg>.*) ', data);
if m:
arglist[arg] = m.group('arg')
else:
m = re.match('.* '+arg+'=(?P<arg>.*)', data);
if m:
arglist[arg] = m.group('arg')
out = fmt.format(**arglist)
out = out.replace(' ', '_').replace('"', '')
return out
def kprobeText(self, kprobe):
name, fmt, func, args = kprobe['name'], kprobe['format'], kprobe['func'], kprobe['args']
if re.findall('{(?P<n>[a-z,A-Z,0-9]*)}', func):
doError('Kprobe "%s" has format info in the function name "%s"' % (name, func), False)
for arg in re.findall('{(?P<n>[a-z,A-Z,0-9]*)}', fmt):
if arg not in args:
doError('Kprobe "%s" is missing argument "%s"' % (name, arg), False)
val = 'p:%s_cal %s' % (name, func)
for i in sorted(args):
val += ' %s=%s' % (i, args[i])
val += '\nr:%s_ret %s $retval\n' % (name, func)
return val
def addKprobes(self):
# first test each kprobe
print('INITIALIZING KPROBES...')
rejects = []
for name in sorted(self.kprobes):
if not self.testKprobe(self.kprobes[name]):
rejects.append(name)
# remove all failed ones from the list
for name in rejects:
vprint('Skipping KPROBE: %s' % name)
self.kprobes.pop(name)
self.fsetVal('', 'kprobe_events')
kprobeevents = ''
# set the kprobes all at once
for kp in self.kprobes:
val = self.kprobeText(self.kprobes[kp])
vprint('Adding KPROBE: %s\n%s' % (kp, val.strip()))
kprobeevents += self.kprobeText(self.kprobes[kp])
self.fsetVal(kprobeevents, 'kprobe_events')
# verify that the kprobes were set as ordered
check = self.fgetVal('kprobe_events')
linesout = len(kprobeevents.split('\n'))
linesack = len(check.split('\n'))
if linesack < linesout:
# if not, try appending the kprobes 1 by 1
for kp in self.kprobes:
kprobeevents = self.kprobeText(self.kprobes[kp])
self.fsetVal(kprobeevents, 'kprobe_events', 'a')
self.fsetVal('1', 'events/kprobes/enable')
def testKprobe(self, kprobe):
kprobeevents = self.kprobeText(kprobe)
if not kprobeevents:
return False
try:
self.fsetVal(kprobeevents, 'kprobe_events')
check = self.fgetVal('kprobe_events')
except:
return False
linesout = len(kprobeevents.split('\n'))
linesack = len(check.split('\n'))
if linesack < linesout:
return False
return True
def fsetVal(self, val, path, mode='w'):
file = self.tpath+path
if not os.path.exists(file):
return False
try:
fp = open(file, mode)
fp.write(val)
fp.close()
except:
pass
return True
def fgetVal(self, path):
file = self.tpath+path
res = ''
if not os.path.exists(file):
return res
try:
fp = open(file, 'r')
res = fp.read()
fp.close()
except:
pass
return res
def cleanupFtrace(self):
if(self.usecallgraph or self.usetraceevents):
self.fsetVal('0', 'events/kprobes/enable')
self.fsetVal('', 'kprobe_events')
def setupAllKprobes(self):
for name in self.tracefuncs:
self.defaultKprobe(name, self.tracefuncs[name])
for name in self.dev_tracefuncs:
self.defaultKprobe(name, self.dev_tracefuncs[name])
def isCallgraphFunc(self, name):
if len(self.debugfuncs) < 1 and self.suspendmode == 'command':
return True
if name in self.debugfuncs:
return True
funclist = []
for i in self.tracefuncs:
if 'func' in self.tracefuncs[i]:
funclist.append(self.tracefuncs[i]['func'])
else:
funclist.append(i)
if name in funclist:
return True
return False
def initFtrace(self, testing=False):
tp = self.tpath
print('INITIALIZING FTRACE...')
# turn trace off
self.fsetVal('0', 'tracing_on')
self.cleanupFtrace()
# set the trace clock to global
self.fsetVal('global', 'trace_clock')
# set trace buffer to a huge value
self.fsetVal('nop', 'current_tracer')
self.fsetVal('100000', 'buffer_size_kb')
# go no further if this is just a status check
if testing:
return
if self.usekprobes:
# add tracefunc kprobes so long as were not using full callgraph
if(not self.usecallgraph or len(self.debugfuncs) > 0):
for name in self.tracefuncs:
self.defaultKprobe(name, self.tracefuncs[name])
if self.usedevsrc:
for name in self.dev_tracefuncs:
self.defaultKprobe(name, self.dev_tracefuncs[name])
else:
self.usedevsrc = False
self.addKprobes()
# initialize the callgraph trace, unless this is an x2 run
if(self.usecallgraph):
# set trace type
self.fsetVal('function_graph', 'current_tracer')
self.fsetVal('', 'set_ftrace_filter')
# set trace format options
self.fsetVal('print-parent', 'trace_options')
self.fsetVal('funcgraph-abstime', 'trace_options')
self.fsetVal('funcgraph-cpu', 'trace_options')
self.fsetVal('funcgraph-duration', 'trace_options')
self.fsetVal('funcgraph-proc', 'trace_options')
self.fsetVal('funcgraph-tail', 'trace_options')
self.fsetVal('nofuncgraph-overhead', 'trace_options')
self.fsetVal('context-info', 'trace_options')
self.fsetVal('graph-time', 'trace_options')
self.fsetVal('0', 'max_graph_depth')
if len(self.debugfuncs) > 0:
self.setFtraceFilterFunctions(self.debugfuncs)
elif self.suspendmode == 'command':
self.fsetVal('', 'set_graph_function')
else:
cf = ['dpm_run_callback']
if(self.usetraceeventsonly):
cf += ['dpm_prepare', 'dpm_complete']
for fn in self.tracefuncs:
if 'func' in self.tracefuncs[fn]:
cf.append(self.tracefuncs[fn]['func'])
else:
cf.append(fn)
self.setFtraceFilterFunctions(cf)
if(self.usetraceevents):
# turn trace events on
events = iter(self.traceevents)
for e in events:
self.fsetVal('1', 'events/power/'+e+'/enable')
# clear the trace buffer
self.fsetVal('', 'trace')
def verifyFtrace(self):
# files needed for any trace data
files = ['buffer_size_kb', 'current_tracer', 'trace', 'trace_clock',
'trace_marker', 'trace_options', 'tracing_on']
# files needed for callgraph trace data
tp = self.tpath
if(self.usecallgraph):
files += [
'available_filter_functions',
'set_ftrace_filter',
'set_graph_function'
]
for f in files:
if(os.path.exists(tp+f) == False):
return False
return True
def verifyKprobes(self):
# files needed for kprobes to work
files = ['kprobe_events', 'events']
tp = self.tpath
for f in files:
if(os.path.exists(tp+f) == False):
return False
return True
def colorText(self, str):
if not self.ansi:
return str
return '\x1B[31;40m'+str+'\x1B[m'
sysvals = SystemValues()
# Class: DevProps
# Description:
# Simple class which holds property values collected
# for all the devices used in the timeline.
class DevProps:
syspath = ''
altname = ''
async = True
xtraclass = ''
xtrainfo = ''
def out(self, dev):
return '%s,%s,%d;' % (dev, self.altname, self.async)
def debug(self, dev):
print '%s:\n\taltname = %s\n\t async = %s' % (dev, self.altname, self.async)
def altName(self, dev):
if not self.altname or self.altname == dev:
return dev
return '%s [%s]' % (self.altname, dev)
def xtraClass(self):
if self.xtraclass:
return ' '+self.xtraclass
if not self.async:
return ' sync'
return ''
def xtraInfo(self):
if self.xtraclass:
return ' '+self.xtraclass
if self.async:
return ' async'
return ' sync'
# Class: DeviceNode
# Description:
# A container used to create a device hierachy, with a single root node
# and a tree of child nodes. Used by Data.deviceTopology()
class DeviceNode:
name = ''
children = 0
depth = 0
def __init__(self, nodename, nodedepth):
self.name = nodename
self.children = []
self.depth = nodedepth
# Class: Data
# Description:
# The primary container for suspend/resume test data. There is one for
# each test run. The data is organized into a cronological hierarchy:
# Data.dmesg {
# root structure, started as dmesg & ftrace, but now only ftrace
# contents: times for suspend start/end, resume start/end, fwdata
# phases {
# 10 sequential, non-overlapping phases of S/R
# contents: times for phase start/end, order/color data for html
# devlist {
# device callback or action list for this phase
# device {
# a single device callback or generic action
# contents: start/stop times, pid/cpu/driver info
# parents/children, html id for timeline/callgraph
# optionally includes an ftrace callgraph
# optionally includes intradev trace events
# }
# }
# }
# }
#
class Data:
dmesg = {} # root data structure
phases = [] # ordered list of phases
start = 0.0 # test start
end = 0.0 # test end
tSuspended = 0.0 # low-level suspend start
tResumed = 0.0 # low-level resume start
tLow = 0.0 # time spent in low-level suspend (standby/freeze)
fwValid = False # is firmware data available
fwSuspend = 0 # time spent in firmware suspend
fwResume = 0 # time spent in firmware resume
dmesgtext = [] # dmesg text file in memory
testnumber = 0
idstr = ''
html_device_id = 0
stamp = 0
outfile = ''
dev_ubiquitous = ['msleep', 'udelay']
def __init__(self, num):
idchar = 'abcdefghijklmnopqrstuvwxyz'
self.testnumber = num
self.idstr = idchar[num]
self.dmesgtext = []
self.phases = []
self.dmesg = { # fixed list of 10 phases
'suspend_prepare': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#CCFFCC', 'order': 0},
'suspend': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#88FF88', 'order': 1},
'suspend_late': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#00AA00', 'order': 2},
'suspend_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#008888', 'order': 3},
'suspend_machine': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#0000FF', 'order': 4},
'resume_machine': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FF0000', 'order': 5},
'resume_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FF9900', 'order': 6},
'resume_early': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFCC00', 'order': 7},
'resume': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFFF88', 'order': 8},
'resume_complete': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFFFCC', 'order': 9}
}
self.phases = self.sortedPhases()
self.devicegroups = []
for phase in self.phases:
self.devicegroups.append([phase])
def getStart(self):
return self.dmesg[self.phases[0]]['start']
def setStart(self, time):
self.start = time
self.dmesg[self.phases[0]]['start'] = time
def getEnd(self):
return self.dmesg[self.phases[-1]]['end']
def setEnd(self, time):
self.end = time
self.dmesg[self.phases[-1]]['end'] = time
def isTraceEventOutsideDeviceCalls(self, pid, time):
for phase in self.phases:
list = self.dmesg[phase]['list']
for dev in list:
d = list[dev]
if(d['pid'] == pid and time >= d['start'] and
time < d['end']):
return False
return True
def targetDevice(self, phaselist, start, end, pid=-1):
tgtdev = ''
for phase in phaselist:
list = self.dmesg[phase]['list']
for devname in list:
dev = list[devname]
if(pid >= 0 and dev['pid'] != pid):
continue
devS = dev['start']
devE = dev['end']
if(start < devS or start >= devE or end <= devS or end > devE):
continue
tgtdev = dev
break
return tgtdev
def addDeviceFunctionCall(self, displayname, kprobename, proc, pid, start, end, cdata, rdata):
machstart = self.dmesg['suspend_machine']['start']
machend = self.dmesg['resume_machine']['end']
tgtdev = self.targetDevice(self.phases, start, end, pid)
if not tgtdev and start >= machstart and end < machend:
# device calls in machine phases should be serial
tgtdev = self.targetDevice(['suspend_machine', 'resume_machine'], start, end)
if not tgtdev:
if 'scsi_eh' in proc:
self.newActionGlobal(proc, start, end, pid)
self.addDeviceFunctionCall(displayname, kprobename, proc, pid, start, end, cdata, rdata)
else:
vprint('IGNORE: %s[%s](%d) [%f - %f] | %s | %s | %s' % (displayname, kprobename,
pid, start, end, cdata, rdata, proc))
return False
# detail block fits within tgtdev
if('src' not in tgtdev):
tgtdev['src'] = []
title = cdata+' '+rdata
mstr = '\(.*\) *(?P<args>.*) *\((?P<caller>.*)\+.* arg1=(?P<ret>.*)'
m = re.match(mstr, title)
if m:
c = m.group('caller')
a = m.group('args').strip()
r = m.group('ret')
if len(r) > 6:
r = ''
else:
r = 'ret=%s ' % r
l = '%0.3fms' % ((end - start) * 1000)
if kprobename in self.dev_ubiquitous:
title = '%s(%s) <- %s, %s(%s)' % (displayname, a, c, r, l)
else:
title = '%s(%s) %s(%s)' % (displayname, a, r, l)
e = TraceEvent(title, kprobename, start, end - start)
tgtdev['src'].append(e)
return True
def trimTimeVal(self, t, t0, dT, left):
if left:
if(t > t0):
if(t - dT < t0):
return t0
return t - dT
else:
return t
else:
if(t < t0 + dT):
if(t > t0):
return t0 + dT
return t + dT
else:
return t
def trimTime(self, t0, dT, left):
self.tSuspended = self.trimTimeVal(self.tSuspended, t0, dT, left)
self.tResumed = self.trimTimeVal(self.tResumed, t0, dT, left)
self.start = self.trimTimeVal(self.start, t0, dT, left)
self.end = self.trimTimeVal(self.end, t0, dT, left)
for phase in self.phases:
p = self.dmesg[phase]
p['start'] = self.trimTimeVal(p['start'], t0, dT, left)
p['end'] = self.trimTimeVal(p['end'], t0, dT, left)
list = p['list']
for name in list:
d = list[name]
d['start'] = self.trimTimeVal(d['start'], t0, dT, left)
d['end'] = self.trimTimeVal(d['end'], t0, dT, left)
if('ftrace' in d):
cg = d['ftrace']
cg.start = self.trimTimeVal(cg.start, t0, dT, left)
cg.end = self.trimTimeVal(cg.end, t0, dT, left)
for line in cg.list:
line.time = self.trimTimeVal(line.time, t0, dT, left)
if('src' in d):
for e in d['src']:
e.time = self.trimTimeVal(e.time, t0, dT, left)
def normalizeTime(self, tZero):
# trim out any standby or freeze clock time
if(self.tSuspended != self.tResumed):
if(self.tResumed > tZero):
self.trimTime(self.tSuspended, \
self.tResumed-self.tSuspended, True)
else:
self.trimTime(self.tSuspended, \
self.tResumed-self.tSuspended, False)
def newPhaseWithSingleAction(self, phasename, devname, start, end, color):
for phase in self.phases:
self.dmesg[phase]['order'] += 1
self.html_device_id += 1
devid = '%s%d' % (self.idstr, self.html_device_id)
list = dict()
list[devname] = \
{'start': start, 'end': end, 'pid': 0, 'par': '',
'length': (end-start), 'row': 0, 'id': devid, 'drv': '' };
self.dmesg[phasename] = \
{'list': list, 'start': start, 'end': end,
'row': 0, 'color': color, 'order': 0}
self.phases = self.sortedPhases()
def newPhase(self, phasename, start, end, color, order):
if(order < 0):
order = len(self.phases)
for phase in self.phases[order:]:
self.dmesg[phase]['order'] += 1
if(order > 0):
p = self.phases[order-1]
self.dmesg[p]['end'] = start
if(order < len(self.phases)):
p = self.phases[order]
self.dmesg[p]['start'] = end
list = dict()
self.dmesg[phasename] = \
{'list': list, 'start': start, 'end': end,
'row': 0, 'color': color, 'order': order}
self.phases = self.sortedPhases()
self.devicegroups.append([phasename])
def setPhase(self, phase, ktime, isbegin):
if(isbegin):
self.dmesg[phase]['start'] = ktime
else:
self.dmesg[phase]['end'] = ktime
def dmesgSortVal(self, phase):
return self.dmesg[phase]['order']
def sortedPhases(self):
return sorted(self.dmesg, key=self.dmesgSortVal)
def sortedDevices(self, phase):
list = self.dmesg[phase]['list']
slist = []
tmp = dict()
for devname in list:
dev = list[devname]
tmp[dev['start']] = devname
for t in sorted(tmp):
slist.append(tmp[t])
return slist
def fixupInitcalls(self, phase, end):
# if any calls never returned, clip them at system resume end
phaselist = self.dmesg[phase]['list']
for devname in phaselist:
dev = phaselist[devname]
if(dev['end'] < 0):
for p in self.phases:
if self.dmesg[p]['end'] > dev['start']:
dev['end'] = self.dmesg[p]['end']
break
vprint('%s (%s): callback didnt return' % (devname, phase))
def deviceFilter(self, devicefilter):
# remove all by the relatives of the filter devnames
filter = []
for phase in self.phases:
list = self.dmesg[phase]['list']
for name in devicefilter:
dev = name
while(dev in list):
if(dev not in filter):
filter.append(dev)
dev = list[dev]['par']
children = self.deviceDescendants(name, phase)
for dev in children:
if(dev not in filter):
filter.append(dev)
for phase in self.phases:
list = self.dmesg[phase]['list']
rmlist = []
for name in list:
pid = list[name]['pid']
if(name not in filter and pid >= 0):
rmlist.append(name)
for name in rmlist:
del list[name]
def fixupInitcallsThatDidntReturn(self):
# if any calls never returned, clip them at system resume end
for phase in self.phases:
self.fixupInitcalls(phase, self.getEnd())
def isInsideTimeline(self, start, end):
if(self.start <= start and self.end > start):
return True
return False
def phaseOverlap(self, phases):
rmgroups = []
newgroup = []
for group in self.devicegroups:
for phase in phases:
if phase not in group:
continue
for p in group:
if p not in newgroup:
newgroup.append(p)
if group not in rmgroups:
rmgroups.append(group)
for group in rmgroups:
self.devicegroups.remove(group)
self.devicegroups.append(newgroup)
def newActionGlobal(self, name, start, end, pid=-1, color=''):
# if event starts before timeline start, expand timeline
if(start < self.start):
self.setStart(start)
# if event ends after timeline end, expand the timeline
if(end > self.end):
self.setEnd(end)
# which phase is this device callback or action "in"
targetphase = "none"
htmlclass = ''
overlap = 0.0
phases = []
for phase in self.phases:
pstart = self.dmesg[phase]['start']
pend = self.dmesg[phase]['end']
o = max(0, min(end, pend) - max(start, pstart))
if o > 0:
phases.append(phase)
if o > overlap:
if overlap > 0 and phase == 'post_resume':
continue
targetphase = phase
overlap = o
if pid == -2:
htmlclass = ' bg'
if len(phases) > 1:
htmlclass = ' bg'
self.phaseOverlap(phases)
if targetphase in self.phases:
newname = self.newAction(targetphase, name, pid, '', start, end, '', htmlclass, color)
return (targetphase, newname)
return False
def newAction(self, phase, name, pid, parent, start, end, drv, htmlclass='', color=''):
# new device callback for a specific phase
self.html_device_id += 1
devid = '%s%d' % (self.idstr, self.html_device_id)
list = self.dmesg[phase]['list']
length = -1.0
if(start >= 0 and end >= 0):
length = end - start
if pid == -2:
i = 2
origname = name
while(name in list):
name = '%s[%d]' % (origname, i)
i += 1
list[name] = {'start': start, 'end': end, 'pid': pid, 'par': parent,
'length': length, 'row': 0, 'id': devid, 'drv': drv }
if htmlclass:
list[name]['htmlclass'] = htmlclass
if color:
list[name]['color'] = color
return name
def deviceIDs(self, devlist, phase):
idlist = []
list = self.dmesg[phase]['list']
for devname in list:
if devname in devlist:
idlist.append(list[devname]['id'])