generic-poky/meta/classes/buildstats.bbclass
Richard Purdie 9ec95575e4 buildstats: Fix tracebacks for early task failures
If a failure occurs early in the task, its possible we can have a
TaskFailed before the TaskStarted event can be triggered. This in
turn causes another traceback as the directory buildstats writes
files into doesn't exist.

Ensure the directory exists so we can see the original error.

(From OE-Core rev: bd0a65ec47ebf55c549c9ef276b201b72396ce2b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-04-15 06:59:43 +01:00

186 lines
7.5 KiB
Text

BUILDSTATS_BASE = "${TMPDIR}/buildstats/"
################################################################################
# Build statistics gathering.
#
# The CPU and Time gathering/tracking functions and bbevent inspiration
# were written by Christopher Larson.
#
################################################################################
def get_buildprocess_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_process_cputime(pid):
import resource
with open("/proc/%d/stat" % pid, "r") as f:
fields = f.readline().rstrip().split()
stats = {
'utime' : fields[13],
'stime' : fields[14],
'cutime' : fields[15],
'cstime' : fields[16],
}
iostats = {}
if os.path.isfile("/proc/%d/io" % pid):
with open("/proc/%d/io" % pid, "r") as f:
while True:
i = f.readline().strip()
if not i:
break
i = i.split(": ")
iostats[i[0]] = i[1]
resources = resource.getrusage(resource.RUSAGE_SELF)
childres = resource.getrusage(resource.RUSAGE_CHILDREN)
return stats, iostats, resources, childres
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_timedata(var, d, server_time):
d.setVar(var, server_time)
def get_timedata(var, d, end_time):
oldtime = d.getVar(var, False)
if oldtime is None:
return
return end_time - oldtime
def set_buildtimedata(var, d):
import time
time = time.time()
cputime = get_cputime()
proctime = get_buildprocess_cputime(os.getpid())
d.setVar(var, (time, cputime, proctime))
def get_buildtimedata(var, d):
import time
timedata = d.getVar(var, False)
if timedata is None:
return
oldtime, oldcpu, oldproc = timedata
procdiff = get_buildprocess_cputime(os.getpid()) - oldproc
cpudiff = get_cputime() - oldcpu
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, e, d):
bn = d.getVar('BUILDNAME', True)
bsdir = os.path.join(d.getVar('BUILDSTATS_BASE', True), bn)
with open(os.path.join(logfile), "a") as f:
elapsedtime = get_timedata("__timedata_task", d, e.time)
if elapsedtime:
f.write(d.expand("${PF}: %s: Elapsed time: %0.2f seconds \n" %
(e.task, elapsedtime)))
cpu, iostats, resources, childres = get_process_cputime(os.getpid())
if cpu:
f.write("utime: %s\n" % cpu['utime'])
f.write("stime: %s\n" % cpu['stime'])
f.write("cutime: %s\n" % cpu['cutime'])
f.write("cstime: %s\n" % cpu['cstime'])
for i in iostats:
f.write("IO %s: %s\n" % (i, iostats[i]))
rusages = ["ru_utime", "ru_stime", "ru_maxrss", "ru_minflt", "ru_majflt", "ru_inblock", "ru_oublock", "ru_nvcsw", "ru_nivcsw"]
for i in rusages:
f.write("rusage %s: %s\n" % (i, getattr(resources, i)))
for i in rusages:
f.write("Child rusage %s: %s\n" % (i, getattr(childres, i)))
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 time, subprocess, platform
bn = d.getVar('BUILDNAME', True)
bsdir = os.path.join(d.getVar('BUILDSTATS_BASE', True), bn)
taskdir = os.path.join(bsdir, d.getVar('PF', True))
if isinstance(e, bb.event.BuildStarted):
########################################################################
# If the kernel was not configured to provide I/O statistics, issue
# a one time warning.
########################################################################
if not os.path.isfile("/proc/%d/io" % os.getpid()):
bb.warn("The Linux kernel on your build host was not configured to provide process I/O statistics. (CONFIG_TASK_IO_ACCOUNTING is not set)")
########################################################################
# at first pass make the buildstats hierarchy and then
# set the buildname
########################################################################
bb.utils.mkdirhier(bsdir)
set_buildtimedata("__timedata_build", d)
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):
build_time = os.path.join(bsdir, "build_stats")
with open(build_time, "a") as f:
########################################################################
# Write build statistics for the build
########################################################################
timedata = get_buildtimedata("__timedata_build", d)
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 isinstance(e, bb.build.TaskStarted):
set_timedata("__timedata_task", d, 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):
write_task_data("passed", os.path.join(taskdir, e.task), e, d)
if e.task == "do_rootfs":
bs = os.path.join(bsdir, "build_stats")
with open(bs, "a") as f:
rootfs = d.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):
# Can have a failure before TaskStarted so need to mkdir here too
bb.utils.mkdirhier(taskdir)
write_task_data("failed", os.path.join(taskdir, e.task), e, d)
########################################################################
# 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(d.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"