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BUILDSTATS_BASE = "${TMPDIR}/buildstats/"
BUILDSTATS_BNFILE = "${BUILDSTATS_BASE}/.buildname"
BUILDSTATS_DEVFILE = "${BUILDSTATS_BASE}/.device"
################################################################################
# Build statistics gathering.
#
# The CPU and Time gathering/tracking functions and bbevent inspiration
# were written by Christopher Larson and can be seen here:
# http://kergoth.pastey.net/142813
#
################################################################################
def get_process_cputime(pid):
with open("/proc/%d/stat" % pid, "r") as f:
fields = f.readline().rstrip().split()
# 13: utime, 14: stime, 15: cutime, 16: cstime
return sum(int(field) for field in fields[13:16])
def get_cputime():
with open("/proc/stat", "r") as f:
fields = f.readline().rstrip().split()[1:]
return sum(int(field) for field in fields)
def set_bn(e):
bn = e.getPkgs()[0] + "-" + e.data.getVar('MACHINE', True)
try:
os.remove(e.data.getVar('BUILDSTATS_BNFILE', True))
except:
pass
with open(e.data.getVar('BUILDSTATS_BNFILE', True), "w") as f:
f.write(os.path.join(bn, e.data.getVar('BUILDNAME', True)))
def get_bn(e):
with open(e.data.getVar('BUILDSTATS_BNFILE', True)) as f:
bn = f.readline()
return bn
def set_device(e):
tmpdir = e.data.getVar('TMPDIR', True)
devfile = e.data.getVar('BUILDSTATS_DEVFILE', True)
try:
os.remove(devfile)
except:
pass
############################################################################
# We look for the volume TMPDIR lives on. To do all disks would make little
# sense and not give us any particularly useful data. In theory we could do
# something like stick DL_DIR on a different partition and this would
# throw stats gathering off. The same goes with SSTATE_DIR. However, let's
# get the basics in here and work on the cornercases later.
# A note. /proc/diskstats does not contain info on encryptfs, tmpfs, etc.
# If we end up hitting one of these fs, we'll just skip diskstats collection.
############################################################################
device = os.stat(tmpdir)
majordev = os.major(long(device.st_dev))
minordev = os.minor(long(device.st_dev))
############################################################################
# Bug 1700:
# Because tmpfs/encryptfs/ramfs etc inserts no entry in /proc/diskstats
# we set rdev to NoLogicalDevice and search for it later. If we find NLD
# we do not collect diskstats as the method to collect meaningful statistics
# for these fs types requires a bit more research.
############################################################################
rdev = "NoLogicalDevice"
try:
with open("/proc/diskstats", "r") as f:
for line in f:
if majordev == int(line.split()[0]) and minordev == int(line.split()[1]):
rdev = line.split()[2]
except:
pass
with open(devfile, "w") as f:
f.write(rdev)
def get_device(e):
with open(e.data.getVar('BUILDSTATS_DEVFILE', True)) as f:
device = f.readline()
return device
def get_diskstats(dev):
import itertools
############################################################################
# For info on what these are, see kernel doc file iostats.txt
############################################################################
DSTAT_KEYS = ['ReadsComp', 'ReadsMerged', 'SectRead', 'TimeReads', 'WritesComp', 'SectWrite', 'TimeWrite', 'IOinProgress', 'TimeIO', 'WTimeIO']
try:
with open("/proc/diskstats", "r") as f:
for x in f:
if dev in x:
diskstats_val = x.rstrip().split()[4:]
except IOError as e:
return
diskstats = dict(itertools.izip(DSTAT_KEYS, diskstats_val))
return diskstats
def set_diskdata(var, dev, data):
data.setVar(var, get_diskstats(dev))
def get_diskdata(var, dev, data):
olddiskdata = data.getVar(var, False)
diskdata = {}
if olddiskdata is None:
return
newdiskdata = get_diskstats(dev)
for key in olddiskdata.iterkeys():
diskdata["Start"+key] = str(int(olddiskdata[key]))
diskdata["End"+key] = str(int(newdiskdata[key]))
return diskdata
def set_timedata(var, data, server_time=None):
import time
if server_time:
time = server_time
else:
time = time.time()
cputime = get_cputime()
proctime = get_process_cputime(os.getpid())
data.setVar(var, (time, cputime, proctime))
def get_timedata(var, data, server_time=None):
import time
timedata = data.getVar(var, False)
if timedata is None:
return
oldtime, oldcpu, oldproc = timedata
procdiff = get_process_cputime(os.getpid()) - oldproc
cpudiff = get_cputime() - oldcpu
if server_time:
end_time = server_time
else:
end_time = time.time()
timediff = end_time - oldtime
if cpudiff > 0:
cpuperc = float(procdiff) * 100 / cpudiff
else:
cpuperc = None
return timediff, cpuperc
def write_task_data(status, logfile, dev, e):
bn = get_bn(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
with open(os.path.join(logfile), "a") as f:
timedata = get_timedata("__timedata_task", e.data, e.time)
if timedata:
elapsedtime, cpu = timedata
f.write(bb.data.expand("${PF}: %s: Elapsed time: %0.2f seconds \n" %
(e.task, elapsedtime), e.data))
if cpu:
f.write("CPU usage: %0.1f%% \n" % cpu)
############################################################################
# Here we gather up disk data. In an effort to avoid lying with stats
# I do a bare minimum of analysis of collected data.
# The simple fact is, doing disk io collection on a per process basis
# without effecting build time would be difficult.
# For the best information, running things with BB_TOTAL_THREADS = "1"
# would return accurate per task results.
############################################################################
if dev != "NoLogicalDevice":
diskdata = get_diskdata("__diskdata_task", dev, e.data)
if diskdata:
for key in sorted(diskdata.iterkeys()):
f.write(key + ": " + diskdata[key] + "\n")
if status is "passed":
f.write("Status: PASSED \n")
else:
f.write("Status: FAILED \n")
f.write("Ended: %0.2f \n" % e.time)
python run_buildstats () {
import bb.build
import bb.event
import bb.data
import time, subprocess, platform
if isinstance(e, bb.event.BuildStarted):
########################################################################
# at first pass make the buildstats heriarchy and then
# set the buildname
########################################################################
bb.utils.mkdirhier(e.data.getVar('BUILDSTATS_BASE', True))
set_bn(e)
bn = get_bn(e)
set_device(e)
device = get_device(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
bb.utils.mkdirhier(bsdir)
if device != "NoLogicalDevice":
set_diskdata("__diskdata_build", device, e.data)
set_timedata("__timedata_build", e.data)
build_time = os.path.join(bsdir, "build_stats")
# write start of build into build_time
with open(build_time, "a") as f:
host_info = platform.uname()
f.write("Host Info: ")
for x in host_info:
if x:
f.write(x + " ")
f.write("\n")
f.write("Build Started: %0.2f \n" % time.time())
elif isinstance(e, bb.event.BuildCompleted):
bn = get_bn(e)
device = get_device(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
build_time = os.path.join(bsdir, "build_stats")
with open(build_time, "a") as f:
########################################################################
# Write build statistics for the build
########################################################################
timedata = get_timedata("__timedata_build", e.data)
if timedata:
time, cpu = timedata
# write end of build and cpu used into build_time
f.write("Elapsed time: %0.2f seconds \n" % (time))
if cpu:
f.write("CPU usage: %0.1f%% \n" % cpu)
if device != "NoLogicalDevice":
diskio = get_diskdata("__diskdata_build", device, e.data)
if diskio:
for key in sorted(diskio.iterkeys()):
f.write(key + ": " + diskio[key] + "\n")
if isinstance(e, bb.build.TaskStarted):
bn = get_bn(e)
device = get_device(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
taskdir = os.path.join(bsdir, e.data.getVar('PF', True))
if device != "NoLogicalDevice":
set_diskdata("__diskdata_task", device, e.data)
set_timedata("__timedata_task", e.data, e.time)
bb.utils.mkdirhier(taskdir)
# write into the task event file the name and start time
with open(os.path.join(taskdir, e.task), "a") as f:
f.write("Event: %s \n" % bb.event.getName(e))
f.write("Started: %0.2f \n" % e.time)
elif isinstance(e, bb.build.TaskSucceeded):
bn = get_bn(e)
device = get_device(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
taskdir = os.path.join(bsdir, e.data.getVar('PF', True))
write_task_data("passed", os.path.join(taskdir, e.task), device, e)
if e.task == "do_rootfs":
bs = os.path.join(bsdir, "build_stats")
with open(bs, "a") as f:
rootfs = e.data.getVar('IMAGE_ROOTFS', True)
rootfs_size = subprocess.Popen(["du", "-sh", rootfs], stdout=subprocess.PIPE).stdout.read()
f.write("Uncompressed Rootfs size: %s" % rootfs_size)
elif isinstance(e, bb.build.TaskFailed):
bn = get_bn(e)
device = get_device(e)
bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
taskdir = os.path.join(bsdir, e.data.getVar('PF', True))
write_task_data("failed", os.path.join(taskdir, e.task), device, e)
########################################################################
# Lets make things easier and tell people where the build failed in
# build_status. We do this here because BuildCompleted triggers no
# matter what the status of the build actually is
########################################################################
build_status = os.path.join(bsdir, "build_stats")
with open(build_status, "a") as f:
f.write(e.data.expand("Failed at: ${PF} at task: %s \n" % e.task))
}
addhandler run_buildstats
run_buildstats[eventmask] = "bb.event.BuildStarted bb.event.BuildCompleted bb.build.TaskStarted bb.build.TaskSucceeded bb.build.TaskFailed"
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