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-rw-r--r--import-layers/yocto-poky/meta/classes/buildstats.bbclass185
1 files changed, 185 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/classes/buildstats.bbclass b/import-layers/yocto-poky/meta/classes/buildstats.bbclass
new file mode 100644
index 000000000..34ecb0386
--- /dev/null
+++ b/import-layers/yocto-poky/meta/classes/buildstats.bbclass
@@ -0,0 +1,185 @@
+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"
+
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