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.
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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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if os.path.isfile("/proc/%d/io" % pid):
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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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if not ":" in i:
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# one more extra line is appended (empty or containing "0")
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# most probably due to race condition in kernel while
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# updating IO stats
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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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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\n" % e.task))
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f.write(d.expand("Elapsed time: %0.2f seconds\n" % 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 == "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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def write_host_data(logfile, e, d, type):
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import subprocess, os, datetime
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# minimum time allowed for each command to run, in seconds
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time_threshold = 0.5
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limit = 10
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# the total number of commands
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num_cmds = 0
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msg = ""
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if type == "interval":
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# interval at which data will be logged
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interval = d.getVar("BB_HEARTBEAT_EVENT", False)
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if interval is None:
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bb.warn("buildstats: Collecting host data at intervals failed. Set BB_HEARTBEAT_EVENT=\"<interval>\" in conf/local.conf for the interval at which host data will be logged.")
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d.setVar("BB_LOG_HOST_STAT_ON_INTERVAL", "0")
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return
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interval = int(interval)
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cmds = d.getVar('BB_LOG_HOST_STAT_CMDS_INTERVAL')
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msg = "Host Stats: Collecting data at %d second intervals.\n" % interval
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if cmds is None:
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d.setVar("BB_LOG_HOST_STAT_ON_INTERVAL", "0")
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bb.warn("buildstats: Collecting host data at intervals failed. Set BB_LOG_HOST_STAT_CMDS_INTERVAL=\"command1 ; command2 ; ... \" in conf/local.conf.")
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return
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if type == "failure":
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cmds = d.getVar('BB_LOG_HOST_STAT_CMDS_FAILURE')
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msg = "Host Stats: Collecting data on failure.\n"
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msg += "Failed at task: " + e.task + "\n"
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if cmds is None:
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d.setVar("BB_LOG_HOST_STAT_ON_FAILURE", "0")
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bb.warn("buildstats: Collecting host data on failure failed. Set BB_LOG_HOST_STAT_CMDS_FAILURE=\"command1 ; command2 ; ... \" in conf/local.conf.")
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return
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c_san = []
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for cmd in cmds.split(";"):
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if len(cmd) == 0:
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continue
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num_cmds += 1
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c_san.append(cmd)
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if num_cmds == 0:
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if type == "interval":
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d.setVar("BB_LOG_HOST_STAT_ON_INTERVAL", "0")
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if type == "failure":
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d.setVar("BB_LOG_HOST_STAT_ON_FAILURE", "0")
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return
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# return if the interval is not enough to run all commands within the specified BB_HEARTBEAT_EVENT interval
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if type == "interval":
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limit = interval / num_cmds
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if limit <= time_threshold:
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d.setVar("BB_LOG_HOST_STAT_ON_INTERVAL", "0")
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bb.warn("buildstats: Collecting host data failed. BB_HEARTBEAT_EVENT interval not enough to run the specified commands. Increase value of BB_HEARTBEAT_EVENT in conf/local.conf.")
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return
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# set the environment variables
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path = d.getVar("PATH")
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opath = d.getVar("BB_ORIGENV", False).getVar("PATH")
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ospath = os.environ['PATH']
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os.environ['PATH'] = path + ":" + opath + ":" + ospath
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with open(logfile, "a") as f:
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f.write("Event Time: %f\nDate: %s\n" % (e.time, datetime.datetime.now()))
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f.write("%s" % msg)
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for c in c_san:
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try:
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output = subprocess.check_output(c.split(), stderr=subprocess.STDOUT, timeout=limit).decode('utf-8')
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired, FileNotFoundError) as err:
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output = "Error running command: %s\n%s\n" % (c, err)
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f.write("%s\n%s\n" % (c, output))
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# reset the environment
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os.environ['PATH'] = ospath
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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')
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########################################################################
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# bitbake fires HeartbeatEvent even before a build has been
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# triggered, causing BUILDNAME to be None
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########################################################################
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if bn is not None:
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bsdir = os.path.join(d.getVar('BUILDSTATS_BASE'), bn)
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taskdir = os.path.join(bsdir, d.getVar('PF'))
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if isinstance(e, bb.event.HeartbeatEvent) and bb.utils.to_boolean(d.getVar("BB_LOG_HOST_STAT_ON_INTERVAL")):
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bb.utils.mkdirhier(bsdir)
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write_host_data(os.path.join(bsdir, "host_stats_interval"), e, d, "interval")
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if isinstance(e, bb.event.BuildStarted):
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########################################################################
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# If the kernel was not configured to provide I/O statistics, issue
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# a one time warning.
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########################################################################
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if not os.path.isfile("/proc/%d/io" % os.getpid()):
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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)")
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########################################################################
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# at first pass make the buildstats hierarchy 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" % d.getVar('__timedata_build', False)[0])
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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')
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if os.path.isdir(rootfs):
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try:
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rootfs_size = subprocess.check_output(["du", "-sh", rootfs],
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stderr=subprocess.STDOUT).decode('utf-8')
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f.write("Uncompressed Rootfs size: %s" % rootfs_size)
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except subprocess.CalledProcessError as err:
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bb.warn("Failed to get rootfs size: %s" % err.output.decode('utf-8'))
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elif isinstance(e, bb.build.TaskFailed):
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# Can have a failure before TaskStarted so need to mkdir here too
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bb.utils.mkdirhier(taskdir)
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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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if bb.utils.to_boolean(d.getVar("BB_LOG_HOST_STAT_ON_FAILURE")):
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write_host_data(os.path.join(bsdir, "host_stats_%s_failure" % e.task), e, d, "failure")
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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.event.HeartbeatEvent bb.build.TaskStarted bb.build.TaskSucceeded bb.build.TaskFailed"
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python runqueue_stats () {
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import buildstats
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from bb import event, runqueue
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# We should not record any samples before the first task has started,
|
# because that's the first activity shown in the process chart.
|
# Besides, at that point we are sure that the build variables
|
# are available that we need to find the output directory.
|
# The persistent SystemStats is stored in the datastore and
|
# closed when the build is done.
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system_stats = d.getVar('_buildstats_system_stats', False)
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if not system_stats and isinstance(e, (bb.runqueue.sceneQueueTaskStarted, bb.runqueue.runQueueTaskStarted)):
|
system_stats = buildstats.SystemStats(d)
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d.setVar('_buildstats_system_stats', system_stats)
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if system_stats:
|
# Ensure that we sample at important events.
|
done = isinstance(e, bb.event.BuildCompleted)
|
system_stats.sample(e, force=done)
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if done:
|
system_stats.close()
|
d.delVar('_buildstats_system_stats')
|
}
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addhandler runqueue_stats
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runqueue_stats[eventmask] = "bb.runqueue.sceneQueueTaskStarted bb.runqueue.runQueueTaskStarted bb.event.HeartbeatEvent bb.event.BuildCompleted bb.event.MonitorDiskEvent"
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