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1BUILDSTATS_BASE = "${TMPDIR}/buildstats/"
2BNFILE = "${BUILDSTATS_BASE}/.buildname"
3DEVFILE = "${BUILDSTATS_BASE}/.device"
4
5################################################################################
6# Build statistics gathering.
7#
8# The CPU and Time gathering/tracking functions and bbevent inspiration
9# were written by Christopher Larson and can be seen here:
10# http://kergoth.pastey.net/142813
11#
12################################################################################
13
14def get_process_cputime(pid):
15 with open("/proc/%d/stat" % pid, "r") as f:
16 fields = f.readline().rstrip().split()
17 # 13: utime, 14: stime, 15: cutime, 16: cstime
18 return sum(int(field) for field in fields[13:16])
19
20def get_cputime():
21 with open("/proc/stat", "r") as f:
22 fields = f.readline().rstrip().split()[1:]
23 return sum(int(field) for field in fields)
24
25def set_bn(e):
26 bn = e.getPkgs()[0] + "-" + e.data.getVar('MACHINE', True)
27 try:
28 os.remove(e.data.getVar('BNFILE', True))
29 except:
30 pass
31 with open(e.data.getVar('BNFILE', True), "w") as f:
32 f.write(os.path.join(bn, e.data.getVar('BUILDNAME', True)))
33
34def get_bn(e):
35 with open(e.data.getVar('BNFILE', True)) as f:
36 bn = f.readline()
37 return bn
38
39def set_device(e):
40 tmpdir = e.data.getVar('TMPDIR', True)
41 try:
42 os.remove(e.data.getVar('DEVFILE', True))
43 except:
44 pass
45 ############################################################################
46 # We look for the volume TMPDIR lives on. To do all disks would make little
47 # sense and not give us any particularly useful data. In theory we could do
48 # something like stick DL_DIR on a different partition and this would
49 # throw stats gathering off. The same goes with SSTATE_DIR. However, let's
50 # get the basics in here and work on the cornercases later.
51 # A note. /proc/diskstats does not contain info on encryptfs, tmpfs, etc.
52 # If we end up hitting one of these fs, we'll just skip diskstats collection.
53 ############################################################################
54 device=os.stat(tmpdir)
55 majordev=os.major(device.st_dev)
56 minordev=os.minor(device.st_dev)
57 ############################################################################
58 # Bug 1700:
59 # Because tmpfs/encryptfs/ramfs etc inserts no entry in /proc/diskstats
60 # we set rdev to NoLogicalDevice and search for it later. If we find NLD
61 # we do not collect diskstats as the method to collect meaningful statistics
62 # for these fs types requires a bit more research.
63 ############################################################################
64 rdev="NoLogicalDevice"
65 try:
66 with open("/proc/diskstats", "r") as f:
67 for line in f:
68 if majordev == int(line.split()[0]) and minordev == int(line.split()[1]):
69 rdev=line.split()[2]
70 except:
71 pass
72 file = open(e.data.getVar('DEVFILE', True), "w")
73 file.write(rdev)
74 file.close()
75
76def get_device(e):
77 file = open(e.data.getVar('DEVFILE', True))
78 device = file.readline()
79 file.close()
80 return device
81
82def get_diskstats(dev):
83 import itertools
84 ############################################################################
85 # For info on what these are, see kernel doc file iostats.txt
86 ############################################################################
87 DSTAT_KEYS = ['ReadsComp', 'ReadsMerged', 'SectRead', 'TimeReads', 'WritesComp', 'SectWrite', 'TimeWrite', 'IOinProgress', 'TimeIO', 'WTimeIO']
88 try:
89 with open("/proc/diskstats", "r") as f:
90 for x in f:
91 if dev in x:
92 diskstats_val = x.rstrip().split()[4:]
93 except IOError as e:
94 return
95 diskstats = dict(itertools.izip(DSTAT_KEYS, diskstats_val))
96 return diskstats
97
98def set_diskdata(var, dev, data):
99 data.setVar(var, get_diskstats(dev))
100
101def get_diskdata(var, dev, data):
102 olddiskdata = data.getVar(var, False)
103 diskdata = {}
104 if olddiskdata is None:
105 return
106 newdiskdata = get_diskstats(dev)
107 for key in olddiskdata.iterkeys():
108 diskdata["Start"+key] = str(int(olddiskdata[key]))
109 diskdata["End"+key] = str(int(newdiskdata[key]))
110 return diskdata
111
112def set_timedata(var, data, server_time=None):
113 import time
114 if server_time:
115 time = server_time
116 else:
117 time = time.time()
118 cputime = get_cputime()
119 proctime = get_process_cputime(os.getpid())
120 data.setVar(var, (time, cputime, proctime))
121
122def get_timedata(var, data, server_time=None):
123 import time
124 timedata = data.getVar(var, False)
125 if timedata is None:
126 return
127 oldtime, oldcpu, oldproc = timedata
128 procdiff = get_process_cputime(os.getpid()) - oldproc
129 cpudiff = get_cputime() - oldcpu
130 if server_time:
131 end_time = server_time
132 else:
133 end_time = time.time()
134 timediff = end_time - oldtime
135 if cpudiff > 0:
136 cpuperc = float(procdiff) * 100 / cpudiff
137 else:
138 cpuperc = None
139 return timediff, cpuperc
140
141def write_task_data(status, logfile, dev, e):
142 bn = get_bn(e)
143 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
144 taskdir = os.path.join(bsdir, e.data.expand("${PF}"))
145 file = open(os.path.join(logfile), "a")
146 timedata = get_timedata("__timedata_task", e.data, e.time)
147 if timedata:
148 elapsedtime, cpu = timedata
149 file.write(bb.data.expand("${PF}: %s: Elapsed time: %0.2f seconds \n" %
150 (e.task, elapsedtime), e.data))
151 if cpu:
152 file.write("CPU usage: %0.1f%% \n" % cpu)
153 ############################################################################
154 # Here we gather up disk data. In an effort to avoid lying with stats
155 # I do a bare minimum of analysis of collected data.
156 # The simple fact is, doing disk io collection on a per process basis
157 # without effecting build time would be difficult.
158 # For the best information, running things with BB_TOTAL_THREADS = "1"
159 # would return accurate per task results.
160 ############################################################################
161 if dev != "NoLogicalDevice":
162 diskdata = get_diskdata("__diskdata_task", dev, e.data)
163 if diskdata:
164 for key in sorted(diskdata.iterkeys()):
165 file.write(key + ": " + diskdata[key] + "\n")
166 if status is "passed":
167 file.write("Status: PASSED \n")
168 else:
169 file.write("Status: FAILED \n")
170 file.write("Ended: %0.2f \n" % e.time)
171 file.close()
172
173python run_buildstats () {
174 import bb.build
175 import bb.event
176 import bb.data
177 import time, subprocess, platform
178
179 if isinstance(e, bb.event.BuildStarted):
180 ########################################################################
181 # at first pass make the buildstats heriarchy and then
182 # set the buildname
183 ########################################################################
184 try:
185 bb.utils.mkdirhier(e.data.getVar('BUILDSTATS_BASE', True))
186 except:
187 pass
188 set_bn(e)
189 bn = get_bn(e)
190 set_device(e)
191 device = get_device(e)
192
193 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
194 try:
195 bb.utils.mkdirhier(bsdir)
196 except:
197 pass
198 if device != "NoLogicalDevice":
199 set_diskdata("__diskdata_build", device, e.data)
200 set_timedata("__timedata_build", e.data)
201 build_time = os.path.join(bsdir, "build_stats")
202 # write start of build into build_time
203 file = open(build_time,"a")
204 host_info = platform.uname()
205 file.write("Host Info: ")
206 for x in host_info:
207 if x:
208 file.write(x + " ")
209 file.write("\n")
210 file.write("Build Started: %0.2f \n" % time.time())
211 file.close()
212
213 elif isinstance(e, bb.event.BuildCompleted):
214 bn = get_bn(e)
215 device = get_device(e)
216 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
217 taskdir = os.path.join(bsdir, e.data.expand("${PF}"))
218 build_time = os.path.join(bsdir, "build_stats")
219 file = open(build_time, "a")
220 ########################################################################
221 # Write build statistics for the build
222 ########################################################################
223 timedata = get_timedata("__timedata_build", e.data)
224 if timedata:
225 time, cpu = timedata
226 # write end of build and cpu used into build_time
227 file.write("Elapsed time: %0.2f seconds \n" % (time))
228 if cpu:
229 file.write("CPU usage: %0.1f%% \n" % cpu)
230 if device != "NoLogicalDevice":
231 diskio = get_diskdata("__diskdata_build", device, e.data)
232 if diskio:
233 for key in sorted(diskio.iterkeys()):
234 file.write(key + ": " + diskio[key] + "\n")
235 file.close()
236
237 if isinstance(e, bb.build.TaskStarted):
238 bn = get_bn(e)
239 device = get_device(e)
240 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
241 taskdir = os.path.join(bsdir, e.data.expand("${PF}"))
242 if device != "NoLogicalDevice":
243 set_diskdata("__diskdata_task", device, e.data)
244 set_timedata("__timedata_task", e.data, e.time)
245 try:
246 bb.utils.mkdirhier(taskdir)
247 except:
248 pass
249 # write into the task event file the name and start time
250 file = open(os.path.join(taskdir, e.task), "a")
251 file.write("Event: %s \n" % bb.event.getName(e))
252 file.write("Started: %0.2f \n" % e.time)
253 file.close()
254
255 elif isinstance(e, bb.build.TaskSucceeded):
256 bn = get_bn(e)
257 device = get_device(e)
258 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
259 taskdir = os.path.join(bsdir, e.data.expand("${PF}"))
260 write_task_data("passed", os.path.join(taskdir, e.task), device, e)
261 if e.task == "do_rootfs":
262 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
263 bs=os.path.join(bsdir, "build_stats")
264 file = open(bs,"a")
265 rootfs = e.data.getVar('IMAGE_ROOTFS', True)
266 rootfs_size = subprocess.Popen(["du", "-sh", rootfs], stdout=subprocess.PIPE).stdout.read()
267 file.write("Uncompressed Rootfs size: %s" % rootfs_size)
268 file.close()
269
270 elif isinstance(e, bb.build.TaskFailed):
271 bn = get_bn(e)
272 device = get_device(e)
273 bsdir = os.path.join(e.data.getVar('BUILDSTATS_BASE', True), bn)
274 taskdir = os.path.join(bsdir, e.data.expand("${PF}"))
275 write_task_data("failed", os.path.join(taskdir, e.task), device, e)
276 ########################################################################
277 # Lets make things easier and tell people where the build failed in
278 # build_status. We do this here because BuildCompleted triggers no
279 # matter what the status of the build actually is
280 ########################################################################
281 build_status = os.path.join(bsdir, "build_stats")
282 file = open(build_status,"a")
283 file.write(e.data.expand("Failed at: ${PF} at task: %s \n" % e.task))
284 file.close()
285}
286
287addhandler run_buildstats
288run_buildstats[eventmask] = "bb.event.BuildStarted bb.event.BuildCompleted bb.build.TaskStarted bb.build.TaskSucceeded bb.build.TaskFailed"
289