swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
Tip revision: 5771a8c08880cdca3bfb4a3fc6d309d6bba20877 authored by Linus Torvalds on 15 July 2017, 22:22:10 UTC
Linux v4.13-rc1
Linux v4.13-rc1
Tip revision: 5771a8c
analyze_boot.py
#!/usr/bin/python
#
# Tool for analyzing boot 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.
#
# Authors:
# Todd Brandt <todd.e.brandt@linux.intel.com>
#
# Description:
# This tool is designed to assist kernel and OS developers in optimizing
# their linux stack's boot time. It creates an html representation of
# the kernel boot timeline up to the start of the init process.
#
# ----------------- LIBRARIES --------------------
import sys
import time
import os
import string
import re
import platform
import shutil
from datetime import datetime, timedelta
from subprocess import call, Popen, PIPE
import analyze_suspend as aslib
# ----------------- CLASSES --------------------
# Class: SystemValues
# Description:
# A global, single-instance container used to
# store system values and test parameters
class SystemValues(aslib.SystemValues):
title = 'BootGraph'
version = 2.0
hostname = 'localhost'
testtime = ''
kernel = ''
dmesgfile = ''
ftracefile = ''
htmlfile = 'bootgraph.html'
outfile = ''
phoronix = False
addlogs = False
useftrace = False
usedevsrc = True
suspendmode = 'boot'
max_graph_depth = 2
graph_filter = 'do_one_initcall'
reboot = False
manual = False
iscronjob = False
timeformat = '%.6f'
def __init__(self):
if('LOG_FILE' in os.environ and 'TEST_RESULTS_IDENTIFIER' in os.environ):
self.phoronix = True
self.addlogs = True
self.outfile = os.environ['LOG_FILE']
self.htmlfile = os.environ['LOG_FILE']
self.hostname = platform.node()
self.testtime = datetime.now().strftime('%Y-%m-%d_%H:%M:%S')
if os.path.exists('/proc/version'):
fp = open('/proc/version', 'r')
val = fp.read().strip()
fp.close()
self.kernel = self.kernelVersion(val)
else:
self.kernel = 'unknown'
def kernelVersion(self, msg):
return msg.split()[2]
def kernelParams(self):
cmdline = 'initcall_debug log_buf_len=32M'
if self.useftrace:
cmdline += ' trace_buf_size=128M trace_clock=global '\
'trace_options=nooverwrite,funcgraph-abstime,funcgraph-cpu,'\
'funcgraph-duration,funcgraph-proc,funcgraph-tail,'\
'nofuncgraph-overhead,context-info,graph-time '\
'ftrace=function_graph '\
'ftrace_graph_max_depth=%d '\
'ftrace_graph_filter=%s' % \
(self.max_graph_depth, self.graph_filter)
return cmdline
def setGraphFilter(self, val):
fp = open(self.tpath+'available_filter_functions')
master = fp.read().split('\n')
fp.close()
for i in val.split(','):
func = i.strip()
if func not in master:
doError('function "%s" not available for ftrace' % func)
self.graph_filter = val
def cronjobCmdString(self):
cmdline = '%s -cronjob' % os.path.abspath(sys.argv[0])
args = iter(sys.argv[1:])
for arg in args:
if arg in ['-h', '-v', '-cronjob', '-reboot']:
continue
elif arg in ['-o', '-dmesg', '-ftrace', '-filter']:
args.next()
continue
cmdline += ' '+arg
if self.graph_filter != 'do_one_initcall':
cmdline += ' -filter "%s"' % self.graph_filter
cmdline += ' -o "%s"' % os.path.abspath(self.htmlfile)
return cmdline
def manualRebootRequired(self):
cmdline = self.kernelParams()
print 'To generate a new timeline manually, follow these steps:\n'
print '1. Add the CMDLINE string to your kernel command line.'
print '2. Reboot the system.'
print '3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n'
print 'CMDLINE="%s"' % cmdline
sys.exit()
sysvals = SystemValues()
# Class: Data
# Description:
# The primary container for test data.
class Data(aslib.Data):
dmesg = {} # root data structure
start = 0.0 # test start
end = 0.0 # test end
dmesgtext = [] # dmesg text file in memory
testnumber = 0
idstr = ''
html_device_id = 0
valid = False
initstart = 0.0
boottime = ''
phases = ['boot']
do_one_initcall = False
def __init__(self, num):
self.testnumber = num
self.idstr = 'a'
self.dmesgtext = []
self.dmesg = {
'boot': {'list': dict(), 'start': -1.0, 'end': -1.0, 'row': 0, 'color': '#dddddd'}
}
def deviceTopology(self):
return ''
def newAction(self, phase, name, start, end, ret, ulen):
# 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
i = 2
origname = name
while(name in list):
name = '%s[%d]' % (origname, i)
i += 1
list[name] = {'name': name, 'start': start, 'end': end,
'pid': 0, 'length': length, 'row': 0, 'id': devid,
'ret': ret, 'ulen': ulen }
return name
def deviceMatch(self, cg):
if cg.end - cg.start == 0:
return True
list = self.dmesg['boot']['list']
for devname in list:
dev = list[devname]
if cg.name == 'do_one_initcall':
if(cg.start <= dev['start'] and cg.end >= dev['end'] and dev['length'] > 0):
dev['ftrace'] = cg
self.do_one_initcall = True
return True
else:
if(cg.start > dev['start'] and cg.end < dev['end']):
if 'ftraces' not in dev:
dev['ftraces'] = []
dev['ftraces'].append(cg)
return True
return False
# ----------------- FUNCTIONS --------------------
# Function: loadKernelLog
# Description:
# Load a raw kernel log from dmesg
def loadKernelLog():
data = Data(0)
data.dmesg['boot']['start'] = data.start = ktime = 0.0
sysvals.stamp = {
'time': datetime.now().strftime('%B %d %Y, %I:%M:%S %p'),
'host': sysvals.hostname,
'mode': 'boot', 'kernel': ''}
devtemp = dict()
if(sysvals.dmesgfile):
lf = open(sysvals.dmesgfile, 'r')
else:
lf = Popen('dmesg', stdout=PIPE).stdout
for line in lf:
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 > 120):
break
msg = m.group('msg')
data.end = data.initstart = ktime
data.dmesgtext.append(line)
if(ktime == 0.0 and re.match('^Linux version .*', msg)):
if(not sysvals.stamp['kernel']):
sysvals.stamp['kernel'] = sysvals.kernelVersion(msg)
continue
m = re.match('.* setting system clock to (?P<t>.*) UTC.*', msg)
if(m):
bt = datetime.strptime(m.group('t'), '%Y-%m-%d %H:%M:%S')
bt = bt - timedelta(seconds=int(ktime))
data.boottime = bt.strftime('%Y-%m-%d_%H:%M:%S')
sysvals.stamp['time'] = bt.strftime('%B %d %Y, %I:%M:%S %p')
continue
m = re.match('^calling *(?P<f>.*)\+.*', msg)
if(m):
devtemp[m.group('f')] = ktime
continue
m = re.match('^initcall *(?P<f>.*)\+.* returned (?P<r>.*) after (?P<t>.*) usecs', msg)
if(m):
data.valid = True
f, r, t = m.group('f', 'r', 't')
if(f in devtemp):
data.newAction('boot', f, devtemp[f], ktime, int(r), int(t))
data.end = ktime
del devtemp[f]
continue
if(re.match('^Freeing unused kernel memory.*', msg)):
break
data.dmesg['boot']['end'] = data.end
lf.close()
return data
# Function: loadTraceLog
# Description:
# Check if trace is available and copy to a temp file
def loadTraceLog(data):
# load the data to a temp file if none given
if not sysvals.ftracefile:
lib = aslib.sysvals
aslib.rootCheck(True)
if not lib.verifyFtrace():
doError('ftrace not available')
if lib.fgetVal('current_tracer').strip() != 'function_graph':
doError('ftrace not configured for a boot callgraph')
sysvals.ftracefile = '/tmp/boot_ftrace.%s.txt' % os.getpid()
call('cat '+lib.tpath+'trace > '+sysvals.ftracefile, shell=True)
if not sysvals.ftracefile:
doError('No trace data available')
# parse the trace log
ftemp = dict()
tp = aslib.TestProps()
tp.setTracerType('function_graph')
tf = open(sysvals.ftracefile, 'r')
for line in tf:
if line[0] == '#':
continue
m = re.match(tp.ftrace_line_fmt, line.strip())
if(not m):
continue
m_time, m_proc, m_pid, m_msg, m_dur = \
m.group('time', 'proc', 'pid', 'msg', 'dur')
if float(m_time) > data.end:
break
if(m_time and m_pid and m_msg):
t = aslib.FTraceLine(m_time, m_msg, m_dur)
pid = int(m_pid)
else:
continue
if t.fevent or t.fkprobe:
continue
key = (m_proc, pid)
if(key not in ftemp):
ftemp[key] = []
ftemp[key].append(aslib.FTraceCallGraph(pid))
cg = ftemp[key][-1]
if(cg.addLine(t)):
ftemp[key].append(aslib.FTraceCallGraph(pid))
tf.close()
# add the callgraph data to the device hierarchy
for key in ftemp:
proc, pid = key
for cg in ftemp[key]:
if len(cg.list) < 1 or cg.invalid:
continue
if(not cg.postProcess()):
print('Sanity check failed for %s-%d' % (proc, pid))
continue
# match cg data to devices
if not data.deviceMatch(cg):
print ' BAD: %s %s-%d [%f - %f]' % (cg.name, proc, pid, cg.start, cg.end)
# Function: colorForName
# Description:
# Generate a repeatable color from a list for a given name
def colorForName(name):
list = [
('c1', '#ec9999'),
('c2', '#ffc1a6'),
('c3', '#fff0a6'),
('c4', '#adf199'),
('c5', '#9fadea'),
('c6', '#a699c1'),
('c7', '#ad99b4'),
('c8', '#eaffea'),
('c9', '#dcecfb'),
('c10', '#ffffea')
]
i = 0
total = 0
count = len(list)
while i < len(name):
total += ord(name[i])
i += 1
return list[total % count]
def cgOverview(cg, minlen):
stats = dict()
large = []
for l in cg.list:
if l.fcall and l.depth == 1:
if l.length >= minlen:
large.append(l)
if l.name not in stats:
stats[l.name] = [0, 0.0]
stats[l.name][0] += (l.length * 1000.0)
stats[l.name][1] += 1
return (large, stats)
# Function: createBootGraph
# Description:
# Create the output html file from the resident test data
# Arguments:
# testruns: array of Data objects from parseKernelLog or parseTraceLog
# Output:
# True if the html file was created, false if it failed
def createBootGraph(data, embedded):
# html function templates
html_srccall = '<div id={6} title="{5}" class="srccall" style="left:{1}%;top:{2}px;height:{3}px;width:{4}%;line-height:{3}px;">{0}</div>\n'
html_timetotal = '<table class="time1">\n<tr>'\
'<td class="blue">Time from Kernel Boot to start of User Mode: <b>{0} ms</b></td>'\
'</tr>\n</table>\n'
# device timeline
devtl = aslib.Timeline(100, 20)
# write the test title and general info header
devtl.createHeader(sysvals, 'noftrace')
# Generate the header for this timeline
t0 = data.start
tMax = data.end
tTotal = tMax - t0
if(tTotal == 0):
print('ERROR: No timeline data')
return False
boot_time = '%.0f'%(tTotal*1000)
devtl.html += html_timetotal.format(boot_time)
# determine the maximum number of rows we need to draw
phase = 'boot'
list = data.dmesg[phase]['list']
devlist = []
for devname in list:
d = aslib.DevItem(0, phase, list[devname])
devlist.append(d)
devtl.getPhaseRows(devlist)
devtl.calcTotalRows()
# draw the timeline background
devtl.createZoomBox()
boot = data.dmesg[phase]
length = boot['end']-boot['start']
left = '%.3f' % (((boot['start']-t0)*100.0)/tTotal)
width = '%.3f' % ((length*100.0)/tTotal)
devtl.html += devtl.html_tblock.format(phase, left, width, devtl.scaleH)
devtl.html += devtl.html_phase.format('0', '100', \
'%.3f'%devtl.scaleH, '%.3f'%devtl.bodyH, \
'white', '')
# draw the device timeline
num = 0
devstats = dict()
for devname in sorted(list):
cls, color = colorForName(devname)
dev = list[devname]
info = '@|%.3f|%.3f|%.3f|%d' % (dev['start']*1000.0, dev['end']*1000.0,
dev['ulen']/1000.0, dev['ret'])
devstats[dev['id']] = {'info':info}
dev['color'] = color
height = devtl.phaseRowHeight(0, phase, dev['row'])
top = '%.6f' % ((dev['row']*height) + devtl.scaleH)
left = '%.6f' % (((dev['start']-t0)*100)/tTotal)
width = '%.6f' % (((dev['end']-dev['start'])*100)/tTotal)
length = ' (%0.3f ms) ' % ((dev['end']-dev['start'])*1000)
devtl.html += devtl.html_device.format(dev['id'],
devname+length+'kernel_mode', left, top, '%.3f'%height,
width, devname, ' '+cls, '')
rowtop = devtl.phaseRowTop(0, phase, dev['row'])
height = '%.6f' % (devtl.rowH / 2)
top = '%.6f' % (rowtop + devtl.scaleH + (devtl.rowH / 2))
if data.do_one_initcall:
if('ftrace' not in dev):
continue
cg = dev['ftrace']
large, stats = cgOverview(cg, 0.001)
devstats[dev['id']]['fstat'] = stats
for l in large:
left = '%f' % (((l.time-t0)*100)/tTotal)
width = '%f' % (l.length*100/tTotal)
title = '%s (%0.3fms)' % (l.name, l.length * 1000.0)
devtl.html += html_srccall.format(l.name, left,
top, height, width, title, 'x%d'%num)
num += 1
continue
if('ftraces' not in dev):
continue
for cg in dev['ftraces']:
left = '%f' % (((cg.start-t0)*100)/tTotal)
width = '%f' % ((cg.end-cg.start)*100/tTotal)
cglen = (cg.end - cg.start) * 1000.0
title = '%s (%0.3fms)' % (cg.name, cglen)
cg.id = 'x%d' % num
devtl.html += html_srccall.format(cg.name, left,
top, height, width, title, dev['id']+cg.id)
num += 1
# draw the time scale, try to make the number of labels readable
devtl.createTimeScale(t0, tMax, tTotal, phase)
devtl.html += '</div>\n'
# timeline is finished
devtl.html += '</div>\n</div>\n'
if(sysvals.outfile == sysvals.htmlfile):
hf = open(sysvals.htmlfile, 'a')
else:
hf = open(sysvals.htmlfile, 'w')
# add the css if this is not an embedded run
extra = '\
.c1 {background:rgba(209,0,0,0.4);}\n\
.c2 {background:rgba(255,102,34,0.4);}\n\
.c3 {background:rgba(255,218,33,0.4);}\n\
.c4 {background:rgba(51,221,0,0.4);}\n\
.c5 {background:rgba(17,51,204,0.4);}\n\
.c6 {background:rgba(34,0,102,0.4);}\n\
.c7 {background:rgba(51,0,68,0.4);}\n\
.c8 {background:rgba(204,255,204,0.4);}\n\
.c9 {background:rgba(169,208,245,0.4);}\n\
.c10 {background:rgba(255,255,204,0.4);}\n\
.vt {transform:rotate(-60deg);transform-origin:0 0;}\n\
table.fstat {table-layout:fixed;padding:150px 15px 0 0;font-size:10px;column-width:30px;}\n\
.fstat th {width:55px;}\n\
.fstat td {text-align:left;width:35px;}\n\
.srccall {position:absolute;font-size:10px;z-index:7;overflow:hidden;color:black;text-align:center;white-space:nowrap;border-radius:5px;border:1px solid black;background:linear-gradient(to bottom right,#CCC,#969696);}\n\
.srccall:hover {color:white;font-weight:bold;border:1px solid white;}\n'
if(not embedded):
aslib.addCSS(hf, sysvals, 1, False, extra)
# write the device timeline
hf.write(devtl.html)
# add boot specific html
statinfo = 'var devstats = {\n'
for n in sorted(devstats):
statinfo += '\t"%s": [\n\t\t"%s",\n' % (n, devstats[n]['info'])
if 'fstat' in devstats[n]:
funcs = devstats[n]['fstat']
for f in sorted(funcs, key=funcs.get, reverse=True):
if funcs[f][0] < 0.01 and len(funcs) > 10:
break
statinfo += '\t\t"%f|%s|%d",\n' % (funcs[f][0], f, funcs[f][1])
statinfo += '\t],\n'
statinfo += '};\n'
html = \
'<div id="devicedetailtitle"></div>\n'\
'<div id="devicedetail" style="display:none;">\n'\
'<div id="devicedetail0">\n'\
'<div id="kernel_mode" class="phaselet" style="left:0%;width:100%;background:#DDDDDD"></div>\n'\
'</div>\n</div>\n'\
'<script type="text/javascript">\n'+statinfo+\
'</script>\n'
hf.write(html)
# add the callgraph html
if(sysvals.usecallgraph):
aslib.addCallgraphs(sysvals, hf, data)
# add the dmesg log as a hidden div
if sysvals.addlogs:
hf.write('<div id="dmesglog" style="display:none;">\n')
for line in data.dmesgtext:
line = line.replace('<', '<').replace('>', '>')
hf.write(line)
hf.write('</div>\n')
if(not embedded):
# write the footer and close
aslib.addScriptCode(hf, [data])
hf.write('</body>\n</html>\n')
else:
# embedded out will be loaded in a page, skip the js
hf.write('<div id=bounds style=display:none>%f,%f</div>' % \
(data.start*1000, data.initstart*1000))
hf.close()
return True
# Function: updateCron
# Description:
# (restore=False) Set the tool to run automatically on reboot
# (restore=True) Restore the original crontab
def updateCron(restore=False):
if not restore:
sysvals.rootUser(True)
crondir = '/var/spool/cron/crontabs/'
cronfile = crondir+'root'
backfile = crondir+'root-analyze_boot-backup'
if not os.path.exists(crondir):
doError('%s not found' % crondir)
out = Popen(['which', 'crontab'], stdout=PIPE).stdout.read()
if not out:
doError('crontab not found')
# on restore: move the backup cron back into place
if restore:
if os.path.exists(backfile):
shutil.move(backfile, cronfile)
return
# backup current cron and install new one with reboot
if os.path.exists(cronfile):
shutil.move(cronfile, backfile)
else:
fp = open(backfile, 'w')
fp.close()
res = -1
try:
fp = open(backfile, 'r')
op = open(cronfile, 'w')
for line in fp:
if '@reboot' not in line:
op.write(line)
continue
fp.close()
op.write('@reboot python %s\n' % sysvals.cronjobCmdString())
op.close()
res = call('crontab %s' % cronfile, shell=True)
except Exception, e:
print 'Exception: %s' % str(e)
shutil.move(backfile, cronfile)
res = -1
if res != 0:
doError('crontab failed')
# Function: updateGrub
# Description:
# update grub.cfg for all kernels with our parameters
def updateGrub(restore=False):
# call update-grub on restore
if restore:
try:
call(['update-grub'], stderr=PIPE, stdout=PIPE,
env={'PATH': '.:/sbin:/usr/sbin:/usr/bin:/sbin:/bin'})
except Exception, e:
print 'Exception: %s\n' % str(e)
return
# verify we can do this
sysvals.rootUser(True)
grubfile = '/etc/default/grub'
if not os.path.exists(grubfile):
print 'ERROR: Unable to set the kernel parameters via grub.\n'
sysvals.manualRebootRequired()
out = Popen(['which', 'update-grub'], stdout=PIPE).stdout.read()
if not out:
print 'ERROR: Unable to set the kernel parameters via grub.\n'
sysvals.manualRebootRequired()
# extract the option and create a grub config without it
tgtopt = 'GRUB_CMDLINE_LINUX_DEFAULT'
cmdline = ''
tempfile = '/etc/default/grub.analyze_boot'
shutil.move(grubfile, tempfile)
res = -1
try:
fp = open(tempfile, 'r')
op = open(grubfile, 'w')
cont = False
for line in fp:
line = line.strip()
if len(line) == 0 or line[0] == '#':
continue
opt = line.split('=')[0].strip()
if opt == tgtopt:
cmdline = line.split('=', 1)[1].strip('\\')
if line[-1] == '\\':
cont = True
elif cont:
cmdline += line.strip('\\')
if line[-1] != '\\':
cont = False
else:
op.write('%s\n' % line)
fp.close()
# if the target option value is in quotes, strip them
sp = '"'
val = cmdline.strip()
if val[0] == '\'' or val[0] == '"':
sp = val[0]
val = val.strip(sp)
cmdline = val
# append our cmd line options
if len(cmdline) > 0:
cmdline += ' '
cmdline += sysvals.kernelParams()
# write out the updated target option
op.write('\n%s=%s%s%s\n' % (tgtopt, sp, cmdline, sp))
op.close()
res = call('update-grub')
os.remove(grubfile)
except Exception, e:
print 'Exception: %s' % str(e)
res = -1
# cleanup
shutil.move(tempfile, grubfile)
if res != 0:
doError('update-grub failed')
# Function: doError
# Description:
# generic error function for catastrphic failures
# Arguments:
# msg: the error message to print
# help: True if printHelp should be called after, False otherwise
def doError(msg, help=False):
if help == True:
printHelp()
print 'ERROR: %s\n' % msg
sys.exit()
# Function: printHelp
# Description:
# print out the help text
def printHelp():
print('')
print('%s v%.1f' % (sysvals.title, sysvals.version))
print('Usage: bootgraph <options> <command>')
print('')
print('Description:')
print(' This tool reads in a dmesg log of linux kernel boot and')
print(' creates an html representation of the boot timeline up to')
print(' the start of the init process.')
print('')
print(' If no specific command is given the tool reads the current dmesg')
print(' and/or ftrace log and outputs bootgraph.html')
print('')
print('Options:')
print(' -h Print this help text')
print(' -v Print the current tool version')
print(' -addlogs Add the dmesg log to the html output')
print(' -o file Html timeline name (default: bootgraph.html)')
print(' [advanced]')
print(' -f Use ftrace to add function detail (default: disabled)')
print(' -callgraph Add callgraph detail, can be very large (default: disabled)')
print(' -maxdepth N limit the callgraph data to N call levels (default: 2)')
print(' -mincg ms Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)')
print(' -timeprec N Number of significant digits in timestamps (0:S, 3:ms, [6:us])')
print(' -expandcg pre-expand the callgraph data in the html output (default: disabled)')
print(' -filter list Limit ftrace to comma-delimited list of functions (default: do_one_initcall)')
print(' [commands]')
print(' -reboot Reboot the machine automatically and generate a new timeline')
print(' -manual Show the requirements to generate a new timeline manually')
print(' -dmesg file Load a stored dmesg file (used with -ftrace)')
print(' -ftrace file Load a stored ftrace file (used with -dmesg)')
print(' -flistall Print all functions capable of being captured in ftrace')
print('')
return True
# ----------------- MAIN --------------------
# exec start (skipped if script is loaded as library)
if __name__ == '__main__':
# loop through the command line arguments
cmd = ''
simplecmds = ['-updategrub', '-flistall']
args = iter(sys.argv[1:])
for arg in args:
if(arg == '-h'):
printHelp()
sys.exit()
elif(arg == '-v'):
print("Version %.1f" % sysvals.version)
sys.exit()
elif(arg in simplecmds):
cmd = arg[1:]
elif(arg == '-f'):
sysvals.useftrace = True
elif(arg == '-callgraph'):
sysvals.useftrace = True
sysvals.usecallgraph = True
elif(arg == '-mincg'):
sysvals.mincglen = aslib.getArgFloat('-mincg', args, 0.0, 10000.0)
elif(arg == '-timeprec'):
sysvals.setPrecision(aslib.getArgInt('-timeprec', args, 0, 6))
elif(arg == '-maxdepth'):
sysvals.max_graph_depth = aslib.getArgInt('-maxdepth', args, 0, 1000)
elif(arg == '-filter'):
try:
val = args.next()
except:
doError('No filter functions supplied', True)
aslib.rootCheck(True)
sysvals.setGraphFilter(val)
elif(arg == '-ftrace'):
try:
val = args.next()
except:
doError('No ftrace file supplied', True)
if(os.path.exists(val) == False):
doError('%s does not exist' % val)
sysvals.ftracefile = val
elif(arg == '-addlogs'):
sysvals.addlogs = True
elif(arg == '-expandcg'):
sysvals.cgexp = True
elif(arg == '-dmesg'):
try:
val = args.next()
except:
doError('No dmesg file supplied', True)
if(os.path.exists(val) == False):
doError('%s does not exist' % val)
if(sysvals.htmlfile == val or sysvals.outfile == val):
doError('Output filename collision')
sysvals.dmesgfile = val
elif(arg == '-o'):
try:
val = args.next()
except:
doError('No HTML filename supplied', True)
if(sysvals.dmesgfile == val or sysvals.ftracefile == val):
doError('Output filename collision')
sysvals.htmlfile = val
elif(arg == '-reboot'):
if sysvals.iscronjob:
doError('-reboot and -cronjob are incompatible')
sysvals.reboot = True
elif(arg == '-manual'):
sysvals.reboot = True
sysvals.manual = True
# remaining options are only for cron job use
elif(arg == '-cronjob'):
sysvals.iscronjob = True
if sysvals.reboot:
doError('-reboot and -cronjob are incompatible')
else:
doError('Invalid argument: '+arg, True)
if cmd != '':
if cmd == 'updategrub':
updateGrub()
elif cmd == 'flistall':
sysvals.getFtraceFilterFunctions(False)
sys.exit()
# update grub, setup a cronjob, and reboot
if sysvals.reboot:
if not sysvals.manual:
updateGrub()
updateCron()
call('reboot')
else:
sysvals.manualRebootRequired()
sys.exit()
# disable the cronjob
if sysvals.iscronjob:
updateCron(True)
updateGrub(True)
data = loadKernelLog()
if sysvals.useftrace:
loadTraceLog(data)
if sysvals.iscronjob:
try:
sysvals.fsetVal('0', 'tracing_on')
except:
pass
if(sysvals.outfile and sysvals.phoronix):
fp = open(sysvals.outfile, 'w')
fp.write('pass %s initstart %.3f end %.3f boot %s\n' %
(data.valid, data.initstart*1000, data.end*1000, data.boottime))
fp.close()
if(not data.valid):
if sysvals.dmesgfile:
doError('No initcall data found in %s' % sysvals.dmesgfile)
else:
doError('No initcall data found, is initcall_debug enabled?')
print(' Host: %s' % sysvals.hostname)
print(' Test time: %s' % sysvals.testtime)
print(' Boot time: %s' % data.boottime)
print('Kernel Version: %s' % sysvals.kernel)
print(' Kernel start: %.3f' % (data.start * 1000))
print(' init start: %.3f' % (data.initstart * 1000))
createBootGraph(data, sysvals.phoronix)