| 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" |
| |