adfdca4df1
Add IO stats and getrusage() data to the task statistics. We also drop the CPU percentage calculation since its pretty arbitrary and not very accurate/useful. In particular we can now see the user and sys times as well as the wall clock times. (From OE-Core rev: b849130f71d3ba32a6fa94c291ca6ce7c7c3b3d1) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
177 lines
7 KiB
Text
177 lines
7 KiB
Text
BUILDSTATS_BASE = "${TMPDIR}/buildstats/"
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################################################################################
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# Build statistics gathering.
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#
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# The CPU and Time gathering/tracking functions and bbevent inspiration
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# were written by Christopher Larson and can be seen here:
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# http://kergoth.pastey.net/142813
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#
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################################################################################
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def get_buildprocess_cputime(pid):
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with open("/proc/%d/stat" % pid, "r") as f:
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fields = f.readline().rstrip().split()
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# 13: utime, 14: stime, 15: cutime, 16: cstime
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return sum(int(field) for field in fields[13:16])
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def get_process_cputime(pid):
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import resource
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with open("/proc/%d/stat" % pid, "r") as f:
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fields = f.readline().rstrip().split()
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stats = {
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'utime' : fields[13],
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'stime' : fields[14],
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'cutime' : fields[15],
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'cstime' : fields[16],
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}
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iostats = {}
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with open("/proc/%d/io" % pid, "r") as f:
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while True:
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i = f.readline().strip()
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if not i:
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break
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i = i.split(": ")
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iostats[i[0]] = i[1]
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resources = resource.getrusage(resource.RUSAGE_SELF)
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childres = resource.getrusage(resource.RUSAGE_CHILDREN)
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return stats, iostats, resources, childres
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def get_cputime():
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with open("/proc/stat", "r") as f:
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fields = f.readline().rstrip().split()[1:]
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return sum(int(field) for field in fields)
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def set_timedata(var, d, server_time):
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d.setVar(var, server_time)
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def get_timedata(var, d, end_time):
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oldtime = d.getVar(var, False)
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if oldtime is None:
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return
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return end_time - oldtime
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def set_buildtimedata(var, d):
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import time
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time = time.time()
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cputime = get_cputime()
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proctime = get_buildprocess_cputime(os.getpid())
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d.setVar(var, (time, cputime, proctime))
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def get_buildtimedata(var, d):
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import time
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timedata = d.getVar(var, False)
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if timedata is None:
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return
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oldtime, oldcpu, oldproc = timedata
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procdiff = get_buildprocess_cputime(os.getpid()) - oldproc
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cpudiff = get_cputime() - oldcpu
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end_time = time.time()
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timediff = end_time - oldtime
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if cpudiff > 0:
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cpuperc = float(procdiff) * 100 / cpudiff
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else:
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cpuperc = None
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return timediff, cpuperc
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def write_task_data(status, logfile, e, d):
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bn = d.getVar('BUILDNAME', True)
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bsdir = os.path.join(d.getVar('BUILDSTATS_BASE', True), bn)
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with open(os.path.join(logfile), "a") as f:
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elapsedtime = get_timedata("__timedata_task", d, e.time)
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if elapsedtime:
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f.write(d.expand("${PF}: %s: Elapsed time: %0.2f seconds \n" %
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(e.task, elapsedtime)))
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cpu, iostats, resources, childres = get_process_cputime(os.getpid())
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if cpu:
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f.write("utime: %s\n" % cpu['utime'])
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f.write("stime: %s\n" % cpu['stime'])
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f.write("cutime: %s\n" % cpu['cutime'])
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f.write("cstime: %s\n" % cpu['cstime'])
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for i in iostats:
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f.write("IO %s: %s\n" % (i, iostats[i]))
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rusages = ["ru_utime", "ru_stime", "ru_maxrss", "ru_minflt", "ru_majflt", "ru_inblock", "ru_oublock", "ru_nvcsw", "ru_nivcsw"]
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for i in rusages:
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f.write("rusage %s: %s\n" % (i, getattr(resources, i)))
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for i in rusages:
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f.write("Child rusage %s: %s\n" % (i, getattr(childres, i)))
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if status is "passed":
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f.write("Status: PASSED \n")
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else:
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f.write("Status: FAILED \n")
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f.write("Ended: %0.2f \n" % e.time)
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python run_buildstats () {
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import bb.build
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import bb.event
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import time, subprocess, platform
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bn = d.getVar('BUILDNAME', True)
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bsdir = os.path.join(d.getVar('BUILDSTATS_BASE', True), bn)
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taskdir = os.path.join(bsdir, d.getVar('PF', True))
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if isinstance(e, bb.event.BuildStarted):
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########################################################################
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# at first pass make the buildstats heriarchy and then
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# set the buildname
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########################################################################
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bb.utils.mkdirhier(bsdir)
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set_buildtimedata("__timedata_build", d)
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build_time = os.path.join(bsdir, "build_stats")
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# write start of build into build_time
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with open(build_time, "a") as f:
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host_info = platform.uname()
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f.write("Host Info: ")
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for x in host_info:
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if x:
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f.write(x + " ")
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f.write("\n")
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f.write("Build Started: %0.2f \n" % time.time())
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elif isinstance(e, bb.event.BuildCompleted):
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build_time = os.path.join(bsdir, "build_stats")
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with open(build_time, "a") as f:
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########################################################################
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# Write build statistics for the build
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########################################################################
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timedata = get_buildtimedata("__timedata_build", d)
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if timedata:
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time, cpu = timedata
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# write end of build and cpu used into build_time
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f.write("Elapsed time: %0.2f seconds \n" % (time))
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if cpu:
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f.write("CPU usage: %0.1f%% \n" % cpu)
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if isinstance(e, bb.build.TaskStarted):
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set_timedata("__timedata_task", d, e.time)
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bb.utils.mkdirhier(taskdir)
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# write into the task event file the name and start time
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with open(os.path.join(taskdir, e.task), "a") as f:
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f.write("Event: %s \n" % bb.event.getName(e))
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f.write("Started: %0.2f \n" % e.time)
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elif isinstance(e, bb.build.TaskSucceeded):
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write_task_data("passed", os.path.join(taskdir, e.task), e, d)
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if e.task == "do_rootfs":
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bs = os.path.join(bsdir, "build_stats")
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with open(bs, "a") as f:
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rootfs = d.getVar('IMAGE_ROOTFS', True)
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rootfs_size = subprocess.Popen(["du", "-sh", rootfs], stdout=subprocess.PIPE).stdout.read()
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f.write("Uncompressed Rootfs size: %s" % rootfs_size)
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elif isinstance(e, bb.build.TaskFailed):
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write_task_data("failed", os.path.join(taskdir, e.task), e, d)
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########################################################################
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# Lets make things easier and tell people where the build failed in
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# build_status. We do this here because BuildCompleted triggers no
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# matter what the status of the build actually is
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########################################################################
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build_status = os.path.join(bsdir, "build_stats")
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with open(build_status, "a") as f:
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f.write(d.expand("Failed at: ${PF} at task: %s \n" % e.task))
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}
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addhandler run_buildstats
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run_buildstats[eventmask] = "bb.event.BuildStarted bb.event.BuildCompleted bb.build.TaskStarted bb.build.TaskSucceeded bb.build.TaskFailed"
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