def measure(arg,commandline,delay,maxtime,
outFile=None,errFile=None,inFile=None,logger=None,affinitymask=None):
m = Record(arg)
# For % CPU usage
cpu0 = taskManagerCpuTimes()
### Use a JobObject so we capture data for child processes as well
hJob = CreateJobObject(None,'proctree')
# For elapsed time try QueryPerformanceCounter otherwise use GetTickCount
freq = LARGE_INTEGER()
isCounter = windll.kernel32.QueryPerformanceFrequency(byref(freq))
if isCounter:
t0 = LARGE_INTEGER(); t = LARGE_INTEGER()
windll.kernel32.QueryPerformanceCounter(byref(t0))
else: # the number of milliseconds since windows started
t0 = GetTickCount()
try:
# spawn the program in a separate process
p = Popen(commandline,stdout=outFile,stderr=errFile,stdin=inFile)
hProcess = int(p._handle)
AssignProcessToJobObject(hJob,hProcess)
# wait for program exit status - time out in milliseconds
waitexit = WaitForSingleObject(hProcess,maxtime*1000)
# For elapsed time try QueryPerformanceCounter otherwise use GetTickCount
if isCounter:
windll.kernel32.QueryPerformanceCounter(byref(t))
m.elapsed = (t.value - t0.value) / float(freq.value)
else: # the number of milliseconds since windows started
t = GetTickCount()
m.elapsed = (t - t0) / 1000.0
if waitexit != 0:
# terminate any child processes as well
TerminateJobObject(hJob,-1)
m.setTimedout()
elif p.poll() == 0:
m.setOkay()
### Use a JobObject so we capture data for child processes as well
times = QueryInformationJobObject(hJob,JobObjectBasicAccountingInformation)
#ten million - the number of 100-nanosecond units in one second
totalusr = times['TotalUserTime'] / nanosecs100
totalsys = times['TotalKernelTime'] / nanosecs100
m.userSysTime = totalusr + totalsys
### "VM Size" seems the more appropriate measure
###
# corresponds to Peak Mem Usage in Task Manager
# mem = GetProcessMemoryInfo(hProcess)
# m.maxMem = mem['PeakWorkingSetSize'] / 1024
# corresponds to VM Size in Task Manager
mem = QueryInformationJobObject(hJob,JobObjectExtendedLimitInformation)
m.maxMem = mem['PeakJobMemoryUsed'] / 1024
m.cpuLoad = taskManagerCpuLoad(cpu0, taskManagerCpuTimes(), totalusr)
elif p.poll() == 2:
m.setMissing()
else:
m.setError()
except (OSError,ValueError), (e,err):
if logger: logger.error('%s %s',e,err)
m.setError()
def measureCheckAndLogRepeatLargest(p,t,ms):
repeatTestValue = None
for a in testvalues:
cmd = cmdWithArg(t,a)
ofName = outName(0)
# a logged Empty record will reveal a bencher failure
m = Record()
try:
with open(logName(p),'w') as logf:
with open(ofName,'w') as of:
# append timestamp to log
print >>logf, '\n', strftime("%a, %d %b %Y %H:%M:%S GMT", gmtime())
# append Make output to log
if hasMake(p.imp):
with open( makeName(), 'r') as mf:
logf.write( mf.read() )
with open(errName(),'w+') as ef:
# append command line showing redirected test data file to log
if testdata.get(testname,None):
dfName = dataName(testdata[testname],a)
print >>logf, '\nCOMMAND LINE:\n', cmd, '<', split(dfName)[1]
with open(dfName,'r') as df:
m = measure(a,qsplit(cmd),delay,maxtime,of,ef,df,
logger=logger,affinitymask=affinitymask)
# append command line showing test value argument to log
else:
print >>logf, '\nCOMMAND LINE:\n', cmd
m = measure(a,qsplit(cmd),delay,maxtime,of,ef,
logger=logger,affinitymask=affinitymask)
# check the program output was as expected
checkAndLog(m,ofName,logf)
# add to the measurements
ms.append(m)
# if there was a problem finding the program just ignore the program output
if not m.isMissing():
with open(ofName,'r+') as of:
# append diff or ndiff or cmp output to log
if m.hasBadOutput():
with open(diffName(), 'r') as df:
logf.write( df.read() )
# append program output to log
if isNotChecked(testname):
logf.write( '\nPROGRAM OUTPUT NOT CHECKED:\n' )
logf.write( of.read() )
elif isCheckCmp(testname):
logf.write( '\n(BINARY) PROGRAM OUTPUT NOT SHOWN\n' )
elif getsize(ofName) > outputmax:
of.truncate(outputmax)
logf.write( '\n(TRUNCATED) PROGRAM OUTPUT:\n' )
logf.write( of.read() )
else:
logf.write( '\nPROGRAM OUTPUT:\n' )
logf.write( of.read() )
# append program stderr to log
if getsize(errName()):
with open(errName(), 'r') as ef:
logf.write( '\n' )
logf.write( ef.read() )
if m.isOkay():
if m.hasExceeded(cutoff):
repeatTestValue = None
else:
repeatTestValue = a
else:
break
except IOError, err:
if logger: logger.error(err)
finally:
def measure(arg,commandline,delay,maxtime,
outFile=None,errFile=None,inFile=None,logger=None,affinitymask=None):
r,w = os.pipe()
forkedPid = os.fork()
if forkedPid: # read pickled measurements from the pipe
os.close(w); rPipe = os.fdopen(r); r = cPickle.Unpickler(rPipe)
measurements = r.load()
rPipe.close()
os.waitpid(forkedPid,0)
return measurements
else:
# Sample thread will be destroyed when the forked process _exits
class Sample(threading.Thread):
def __init__(self,program):
threading.Thread.__init__(self)
self.setDaemon(1)
self.timedout = False
self.p = program
self.maxMem = 0
self.childpids = None
self.start()
def run(self):
try:
remaining = maxtime
while remaining > 0:
mem = gtop.proc_mem(self.p).resident
time.sleep(delay)
remaining -= delay
# race condition - will child processes have been created yet?
self.maxMem = max((mem + self.childmem())/1024, self.maxMem)
else:
self.timedout = True
os.kill(self.p, signal.SIGKILL)
except OSError, (e,err):
if logger: logger.error('%s %s',e,err)
def childmem(self):
if self.childpids == None:
self.childpids = set()
for each in gtop.proclist():
if gtop.proc_uid(each).ppid == self.p:
self.childpids.add(each)
mem = 0
for each in self.childpids:
mem += gtop.proc_mem(each).resident
return mem
try:
def setAffinity():
if affinitymask:
set_process_affinity_mask(os.getpid(),affinitymask)
m = Record(arg)
# only write pickles to the pipe
os.close(r); wPipe = os.fdopen(w, 'w'); w = cPickle.Pickler(wPipe)
# gtop cpu is since machine boot, so we need a before measurement
cpus0 = gtop.cpu().cpus
start = time.time()
# spawn the program in a separate process
p = Popen(commandline,stdout=outFile,stderr=errFile,stdin=inFile,preexec_fn=setAffinity)
# start a thread to sample the program's resident memory use
t = Sample( program = p.pid )
# wait for program exit status and resource usage
rusage = os.wait3(0)
# gtop cpu is since machine boot, so we need an after measurement
elapsed = time.time() - start
cpus1 = gtop.cpu().cpus
# summarize measurements
if t.timedout:
m.setTimedout()
elif rusage[1] == os.EX_OK:
m.setOkay()
else:
m.setError()
m.userSysTime = rusage[2][0] + rusage[2][1]
m.maxMem = t.maxMem
load = map(
lambda t0,t1:
int(round(
100.0 * (1.0 - float(t1.idle-t0.idle)/(t1.total-t0.total))
))
,cpus0 ,cpus1 )
#load.sort(reverse=1) # maybe more obvious unsorted
m.cpuLoad = ("% ".join([str(i) for i in load]))+"%"
m.elapsed = elapsed
except KeyboardInterrupt:
os.kill(p.pid, signal.SIGKILL)
except ZeroDivisionError, (e,err):
if logger: logger.warn('%s %s',err,'too fast to measure?')
def measure(arg, commandline, delay, maxtime, outFile=None, errFile=None,
inFile=None, logger=None, affinitymask=None):
# Monitor :
# - max memory consumption
# - user and system time
# - voluntary and involuntary context switches
class ProcessMonitor(threading.Thread):
def __init__(self, process):
threading.Thread.__init__(self)
self.process = process
self.maxmem = 0
self.time = dict(user=0, system=0)
self.ctxswitches = dict(voluntary=0, involuntary=0)
self.setDaemon(1)
self.start()
def run(self):
try:
while time.time() < start + maxtime:
if not process.is_running():
break
self.maxmem = max(self.maxmem, self.currentmem())
self.time['user'] = self.process.get_cpu_times().user
self.time['system'] = self.process.get_cpu_times().system
self.ctxswitches['voluntary'] = self.process.get_num_ctx_switches().voluntary
self.ctxswitches['involuntary'] = self.process.get_num_ctx_switches().involuntary
time.sleep(delay)
except psutil.NoSuchProcess:
pass
except (OSError, Exception) as e:
if logger:
logger.error("%s : %s" % (e.__class__.__name__, e.message))
def currentmem(self):
return self.process.get_memory_info().rss \
+ sum(map(lambda p: p.get_memory_info().rss, self.childrenproc()))
def childrenproc(self):
if not self.process.is_running():
return []
else:
return self.process.get_children(recursive=True)
def set_affinity_mask():
if sys.platform.startswith("linux") or sys.platform.startswith("win32"):
if affinitymask:
proc = psutil.Process(os.getpid())
cpus = []
for i in range(psutil.NUM_CPUS):
if affinitymask & (1 << i) > 0:
cpus.append(i)
proc.set_cpu_affinity(affinitymask)
def compute_load_per_cpu(cpus0, cpus1):
cpus = []
for cpu0, cpu1 in zip(cpus0, cpus1):
cpus.append(int(round(
100.0 * (1.0 - float(cpu1.idle - cpu0.idle) / (sum(cpu1._asdict().values()) - sum(cpu0._asdict().values())))
)))
return cpus
try:
record = Record(arg)
# psutil cpu is since machine boot, so we need a before measurement
cpus0 = psutil.cpu_times(percpu=True)
start = time.time()
# spawn the program in a separate process
process = psutil.Popen(commandline,
stdout=outFile,
stderr=errFile,
stdin=inFile,
preexec_fn=set_affinity_mask)
monitor = ProcessMonitor(process)
# wait for program exit status and resource usage
timeout = False
try:
exitcode = process.wait(timeout=maxtime)
except psutil.TimeoutExpired:
timeout = True
os.kill(process.pid, signal.SIGKILL)
elapsed = time.time() - start
cpus1 = psutil.cpu_times(percpu=True)
# summarize measurements
if timeout:
record.setTimedout()
elif exitcode == os.EX_OK:
record.setOkay()
else:
record.setError()
record.maxMem = monitor.maxmem / 1024
record.ctxSwitches = monitor.ctxswitches
record.cpuLoad = " ".join([str(i) + "%" for i in compute_load_per_cpu(cpus0, cpus1)])
record.time = dict(user=monitor.time['user'],
system=monitor.time['system'],
elapsed=elapsed)
except KeyboardInterrupt:
os.kill(process.pid, signal.SIGKILL)
except ZeroDivisionError, (e,err):
if logger: logger.warn('%s %s',err,'too fast to measure?')
def measure(arg,commandline,delay,maxtime,
outFile=None,errFile=None,inFile=None,logger=None,affinitymask=None):
r,w = os.pipe()
forkedPid = os.fork()
if forkedPid: # read pickled measurements from the pipe
os.close(w); rPipe = os.fdopen(r); r = cPickle.Unpickler(rPipe)
measurements = r.load()
rPipe.close()
os.waitpid(forkedPid,0)
return measurements
else:
# Sample thread will be destroyed when the forked process _exits
class Sample(threading.Thread):
def __init__(self,program):
threading.Thread.__init__(self)
self.setDaemon(1)
self.timedout = False
self.p = program
self.maxMem = 0
self.childpids = None
self.start()
def run(self):
try:
remaining = maxtime
while remaining > 0:
time.sleep(delay)
remaining -= delay
else:
self.timedout = True
os.kill(self.p, signal.SIGKILL)
except OSError, (e,err):
if logger: logger.error('%s %s',e,err)
try:
m = Record(arg)
# only write pickles to the pipe
os.close(r); wPipe = os.fdopen(w, 'w'); w = cPickle.Pickler(wPipe)
start = time.time()
# spawn the program in a separate process
p = Popen(commandline,stdout=outFile,stderr=errFile,stdin=inFile)
# start a thread to sample the program's resident memory use
t = Sample( program = p.pid )
# wait for program exit status and resource usage
rusage = os.wait3(0)
elapsed = time.time() - start
# summarize measurements
if t.timedout:
m.setTimedout()
elif rusage[1] == os.EX_OK:
m.setOkay()
else:
m.setError()
m.userSysTime = rusage[2][0] + rusage[2][1]
m.maxMem = t.maxMem
m.cpuLoad = "%"
m.elapsed = elapsed
except KeyboardInterrupt:
os.kill(p.pid, signal.SIGKILL)
except ZeroDivisionError, (e,err):
if logger: logger.warn('%s %s',err,'too fast to measure?')
def measure(arg,
commandline,
delay,
maxtime,
outFile=None,
errFile=None,
inFile=None,
logger=None,
affinitymask=None):
# Monitor :
# - max memory consumption
# - user and system time
# - voluntary and involuntary context switches
class ProcessMonitor(threading.Thread):
def __init__(self, process):
threading.Thread.__init__(self)
self.process = process
self.maxmem = 0
self.time = dict(user=0, system=0)
self.ctxswitches = dict(voluntary=0, involuntary=0)
self.setDaemon(1)
self.start()
def run(self):
try:
while time.time() < start + maxtime:
if not process.is_running():
break
self.maxmem = max(self.maxmem, self.currentmem())
self.time['user'] = self.process.get_cpu_times().user
self.time['system'] = self.process.get_cpu_times().system
self.ctxswitches[
'voluntary'] = self.process.get_num_ctx_switches(
).voluntary
self.ctxswitches[
'involuntary'] = self.process.get_num_ctx_switches(
).involuntary
time.sleep(delay)
except psutil.NoSuchProcess:
pass
except (OSError, Exception) as e:
if logger:
logger.error("%s : %s" % (e.__class__.__name__, e.message))
def currentmem(self):
return self.process.get_memory_info().rss \
+ sum(map(lambda p: p.get_memory_info().rss, self.childrenproc()))
def childrenproc(self):
if not self.process.is_running():
return []
else:
return self.process.get_children(recursive=True)
def set_affinity_mask():
if sys.platform.startswith("linux") or sys.platform.startswith(
"win32"):
if affinitymask:
proc = psutil.Process(os.getpid())
cpus = []
for i in range(psutil.NUM_CPUS):
if affinitymask & (1 << i) > 0:
cpus.append(i)
proc.set_cpu_affinity(affinitymask)
def compute_load_per_cpu(cpus0, cpus1):
cpus = []
for cpu0, cpu1 in zip(cpus0, cpus1):
cpus.append(
int(
round(100.0 * (1.0 - float(cpu1.idle - cpu0.idle) /
(sum(cpu1._asdict().values()) -
sum(cpu0._asdict().values()))))))
return cpus
try:
record = Record(arg)
# psutil cpu is since machine boot, so we need a before measurement
cpus0 = psutil.cpu_times(percpu=True)
start = time.time()
# spawn the program in a separate process
process = psutil.Popen(commandline,
stdout=outFile,
stderr=errFile,
stdin=inFile,
preexec_fn=set_affinity_mask)
monitor = ProcessMonitor(process)
# wait for program exit status and resource usage
timeout = False
try:
exitcode = process.wait(timeout=maxtime)
except psutil.TimeoutExpired:
timeout = True
os.kill(process.pid, signal.SIGKILL)
elapsed = time.time() - start
cpus1 = psutil.cpu_times(percpu=True)
# summarize measurements
if timeout:
record.setTimedout()
elif exitcode == os.EX_OK:
record.setOkay()
else:
record.setError()
record.maxMem = monitor.maxmem / 1024
record.ctxSwitches = monitor.ctxswitches
record.cpuLoad = " ".join(
[str(i) + "%" for i in compute_load_per_cpu(cpus0, cpus1)])
record.time = dict(user=monitor.time['user'],
system=monitor.time['system'],
elapsed=elapsed)
except KeyboardInterrupt:
os.kill(process.pid, signal.SIGKILL)
except ZeroDivisionError, (e, err):
if logger: logger.warn('%s %s', err, 'too fast to measure?')
