aboutsummaryrefslogtreecommitdiffstats
path: root/meta/lib/oeqa/buildperf/base.py
blob: be3a946ddf2f55d859ca9bf9a44422c412a71902 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
# Copyright (c) 2016, Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
"""Build performance test base classes and functionality"""
import glob
import json
import logging
import os
import re
import resource
import shutil
import socket
import time
import traceback
import unittest
from datetime import datetime, timedelta
from functools import partial
from multiprocessing import Process
from multiprocessing import SimpleQueue

import oe.path
from oeqa.utils.commands import CommandError, runCmd, get_bb_vars
from oeqa.utils.git import GitError, GitRepo

# Get logger for this module
log = logging.getLogger('build-perf')

# Our own version of runCmd which does not raise AssertErrors which would cause
# errors to interpreted as failures
runCmd2 = partial(runCmd, assert_error=False)


class KernelDropCaches(object):
    """Container of the functions for dropping kernel caches"""
    sudo_passwd = None

    @classmethod
    def check(cls):
        """Check permssions for dropping kernel caches"""
        from getpass import getpass
        from locale import getdefaultlocale
        cmd = ['sudo', '-k', '-n', 'tee', '/proc/sys/vm/drop_caches']
        ret = runCmd2(cmd, ignore_status=True, data=b'0')
        if ret.output.startswith('sudo:'):
            pass_str = getpass(
                "\nThe script requires sudo access to drop caches between "
                "builds (echo 3 > /proc/sys/vm/drop_caches).\n"
                "Please enter your sudo password: ")
            cls.sudo_passwd = bytes(pass_str, getdefaultlocale()[1])

    @classmethod
    def drop(cls):
        """Drop kernel caches"""
        cmd = ['sudo', '-k']
        if cls.sudo_passwd:
            cmd.append('-S')
            input_data = cls.sudo_passwd + b'\n'
        else:
            cmd.append('-n')
            input_data = b''
        cmd += ['tee', '/proc/sys/vm/drop_caches']
        input_data += b'3'
        runCmd2(cmd, data=input_data)


def str_to_fn(string):
    """Convert string to a sanitized filename"""
    return re.sub(r'(\W+)', '-', string, flags=re.LOCALE)


class ResultsJsonEncoder(json.JSONEncoder):
    """Extended encoder for build perf test results"""
    unix_epoch = datetime.utcfromtimestamp(0)

    def default(self, obj):
        """Encoder for our types"""
        if isinstance(obj, datetime):
            # NOTE: we assume that all timestamps are in UTC time
            return (obj - self.unix_epoch).total_seconds()
        if isinstance(obj, timedelta):
            return obj.total_seconds()
        return json.JSONEncoder.default(self, obj)


class BuildPerfTestResult(unittest.TextTestResult):
    """Runner class for executing the individual tests"""
    # List of test cases to run
    test_run_queue = []

    def __init__(self, out_dir, *args, **kwargs):
        super(BuildPerfTestResult, self).__init__(*args, **kwargs)

        self.out_dir = out_dir
        # Get Git parameters
        try:
            self.repo = GitRepo('.')
        except GitError:
            self.repo = None
        self.git_commit, self.git_commit_count, self.git_branch = \
                self.get_git_revision()
        self.hostname = socket.gethostname()
        self.product = os.getenv('OE_BUILDPERFTEST_PRODUCT', 'oe-core')
        self.start_time = self.elapsed_time = None
        self.successes = []
        log.info("Using Git branch:commit %s:%s (%s)", self.git_branch,
                 self.git_commit, self.git_commit_count)

    def get_git_revision(self):
        """Get git branch and commit under testing"""
        commit = os.getenv('OE_BUILDPERFTEST_GIT_COMMIT')
        commit_cnt = os.getenv('OE_BUILDPERFTEST_GIT_COMMIT_COUNT')
        branch = os.getenv('OE_BUILDPERFTEST_GIT_BRANCH')
        if not self.repo and (not commit or not commit_cnt or not branch):
            log.info("The current working directory doesn't seem to be a Git "
                     "repository clone. You can specify branch and commit "
                     "displayed in test results with OE_BUILDPERFTEST_GIT_BRANCH, "
                     "OE_BUILDPERFTEST_GIT_COMMIT and "
                     "OE_BUILDPERFTEST_GIT_COMMIT_COUNT environment variables")
        else:
            if not commit:
                commit = self.repo.rev_parse('HEAD^0')
                commit_cnt = self.repo.run_cmd(['rev-list', '--count', 'HEAD^0'])
            if not branch:
                branch = self.repo.get_current_branch()
                if not branch:
                    log.debug('Currently on detached HEAD')
        return str(commit), str(commit_cnt), str(branch)

    def addSuccess(self, test):
        """Record results from successful tests"""
        super(BuildPerfTestResult, self).addSuccess(test)
        self.successes.append((test, None))

    def startTest(self, test):
        """Pre-test hook"""
        test.base_dir = self.out_dir
        os.mkdir(test.out_dir)
        log.info("Executing test %s: %s", test.name, test.shortDescription())
        self.stream.write(datetime.now().strftime("[%Y-%m-%d %H:%M:%S] "))
        super(BuildPerfTestResult, self).startTest(test)

    def startTestRun(self):
        """Pre-run hook"""
        self.start_time = datetime.utcnow()

    def stopTestRun(self):
        """Pre-run hook"""
        self.elapsed_time = datetime.utcnow() - self.start_time
        self.write_results_json()

    def all_results(self):
        result_map = {'SUCCESS': self.successes,
                      'FAIL': self.failures,
                      'ERROR': self.errors,
                      'EXP_FAIL': self.expectedFailures,
                      'UNEXP_SUCCESS': self.unexpectedSuccesses,
                      'SKIPPED': self.skipped}
        for status, tests in result_map.items():
            for test in tests:
                yield (status, test)


    def update_globalres_file(self, filename):
        """Write results to globalres csv file"""
        # Map test names to time and size columns in globalres
        # The tuples represent index and length of times and sizes
        # respectively
        gr_map = {'test1': ((0, 1), (8, 1)),
                  'test12': ((1, 1), (None, None)),
                  'test13': ((2, 1), (9, 1)),
                  'test2': ((3, 1), (None, None)),
                  'test3': ((4, 3), (None, None)),
                  'test4': ((7, 1), (10, 2))}

        if self.repo:
            git_tag_rev = self.repo.run_cmd(['describe', self.git_commit])
        else:
            git_tag_rev = self.git_commit

        values = ['0'] * 12
        for status, (test, msg) in self.all_results():
            if status in ['ERROR', 'SKIPPED']:
                continue
            (t_ind, t_len), (s_ind, s_len) = gr_map[test.name]
            if t_ind is not None:
                values[t_ind:t_ind + t_len] = test.times
            if s_ind is not None:
                values[s_ind:s_ind + s_len] = test.sizes

        log.debug("Writing globalres log to %s", filename)
        with open(filename, 'a') as fobj:
            fobj.write('{},{}:{},{},'.format(self.hostname,
                                             self.git_branch,
                                             self.git_commit,
                                             git_tag_rev))
            fobj.write(','.join(values) + '\n')

    def write_results_json(self):
        """Write test results into a json-formatted file"""
        results = {'tester_host': self.hostname,
                   'git_branch': self.git_branch,
                   'git_commit': self.git_commit,
                   'git_commit_count': self.git_commit_count,
                   'product': self.product,
                   'start_time': self.start_time,
                   'elapsed_time': self.elapsed_time}

        tests = {}
        for status, (test, reason) in self.all_results():
            tests[test.name] = {'name': test.name,
                                'description': test.shortDescription(),
                                'status': status,
                                'start_time': test.start_time,
                                'elapsed_time': test.elapsed_time,
                                'cmd_log_file': os.path.relpath(test.cmd_log_file,
                                                                self.out_dir),
                                'measurements': test.measurements}
        results['tests'] = tests

        with open(os.path.join(self.out_dir, 'results.json'), 'w') as fobj:
            json.dump(results, fobj, indent=4, sort_keys=True,
                      cls=ResultsJsonEncoder)


    def git_commit_results(self, repo_path, branch=None, tag=None):
        """Commit results into a Git repository"""
        repo = GitRepo(repo_path, is_topdir=True)
        if not branch:
            branch = self.git_branch
        else:
            # Replace keywords
            branch = branch.format(git_branch=self.git_branch,
                                   tester_host=self.hostname)

        log.info("Committing test results into %s %s", repo_path, branch)
        tmp_index = os.path.join(repo_path, '.git', 'index.oe-build-perf')
        try:
            # Create new commit object from the new results
            env_update = {'GIT_INDEX_FILE': tmp_index,
                          'GIT_WORK_TREE': self.out_dir}
            repo.run_cmd('add .', env_update)
            tree = repo.run_cmd('write-tree', env_update)
            parent = repo.rev_parse(branch)
            msg = "Results of {}:{}\n".format(self.git_branch, self.git_commit)
            git_cmd = ['commit-tree', tree, '-m', msg]
            if parent:
                git_cmd += ['-p', parent]
            commit = repo.run_cmd(git_cmd, env_update)

            # Update branch head
            git_cmd = ['update-ref', 'refs/heads/' + branch, commit]
            if parent:
                git_cmd.append(parent)
            repo.run_cmd(git_cmd)

            # Update current HEAD, if we're on branch 'branch'
            if repo.get_current_branch() == branch:
                log.info("Updating %s HEAD to latest commit", repo_path)
                repo.run_cmd('reset --hard')

            # Create (annotated) tag
            if tag:
                # Find tags matching the pattern
                tag_keywords = dict(git_branch=self.git_branch,
                                    git_commit=self.git_commit,
                                    git_commit_count=self.git_commit_count,
                                    tester_host=self.hostname,
                                    tag_num='[0-9]{1,5}')
                tag_re = re.compile(tag.format(**tag_keywords) + '$')
                tag_keywords['tag_num'] = 0
                for existing_tag in repo.run_cmd('tag').splitlines():
                    if tag_re.match(existing_tag):
                        tag_keywords['tag_num'] += 1

                tag = tag.format(**tag_keywords)
                msg = "Test run #{} of {}:{}\n".format(tag_keywords['tag_num'],
                                                       self.git_branch,
                                                       self.git_commit)
                repo.run_cmd(['tag', '-a', '-m', msg, tag, commit])

        finally:
            if os.path.exists(tmp_index):
                os.unlink(tmp_index)


class BuildPerfTestCase(unittest.TestCase):
    """Base class for build performance tests"""
    SYSRES = 'sysres'
    DISKUSAGE = 'diskusage'
    build_target = None

    def __init__(self, *args, **kwargs):
        super(BuildPerfTestCase, self).__init__(*args, **kwargs)
        self.name = self._testMethodName
        self.base_dir = None
        self.start_time = None
        self.elapsed_time = None
        self.measurements = []
        self.bb_vars = get_bb_vars()
        # TODO: remove 'times' and 'sizes' arrays when globalres support is
        # removed
        self.times = []
        self.sizes = []

    @property
    def out_dir(self):
        return os.path.join(self.base_dir, self.name)

    @property
    def cmd_log_file(self):
        return os.path.join(self.out_dir, 'commands.log')

    def setUp(self):
        """Set-up fixture for each test"""
        if self.build_target:
            self.log_cmd_output(['bitbake', self.build_target,
                                 '-c', 'fetchall'])

    def run(self, *args, **kwargs):
        """Run test"""
        self.start_time = datetime.now()
        super(BuildPerfTestCase, self).run(*args, **kwargs)
        self.elapsed_time = datetime.now() - self.start_time

    def log_cmd_output(self, cmd):
        """Run a command and log it's output"""
        cmd_str = cmd if isinstance(cmd, str) else ' '.join(cmd)
        log.info("Logging command: %s", cmd_str)
        try:
            with open(self.cmd_log_file, 'a') as fobj:
                runCmd2(cmd, stdout=fobj)
        except CommandError as err:
            log.error("Command failed: %s", err.retcode)
            raise

    def measure_cmd_resources(self, cmd, name, legend, save_bs=False):
        """Measure system resource usage of a command"""
        def _worker(data_q, cmd, **kwargs):
            """Worker process for measuring resources"""
            try:
                start_time = datetime.now()
                ret = runCmd2(cmd, **kwargs)
                etime = datetime.now() - start_time
                rusage_struct = resource.getrusage(resource.RUSAGE_CHILDREN)
                iostat = {}
                with open('/proc/{}/io'.format(os.getpid())) as fobj:
                    for line in fobj.readlines():
                        key, val = line.split(':')
                        iostat[key] = int(val)
                rusage = {}
                # Skip unused fields, (i.e. 'ru_ixrss', 'ru_idrss', 'ru_isrss',
                # 'ru_nswap', 'ru_msgsnd', 'ru_msgrcv' and 'ru_nsignals')
                for key in ['ru_utime', 'ru_stime', 'ru_maxrss', 'ru_minflt',
                            'ru_majflt', 'ru_inblock', 'ru_oublock',
                            'ru_nvcsw', 'ru_nivcsw']:
                    rusage[key] = getattr(rusage_struct, key)
                data_q.put({'ret': ret,
                            'start_time': start_time,
                            'elapsed_time': etime,
                            'rusage': rusage,
                            'iostat': iostat})
            except Exception as err:
                data_q.put(err)

        cmd_str = cmd if isinstance(cmd, str) else ' '.join(cmd)
        log.info("Timing command: %s", cmd_str)
        data_q = SimpleQueue()
        try:
            with open(self.cmd_log_file, 'a') as fobj:
                proc = Process(target=_worker, args=(data_q, cmd,),
                               kwargs={'stdout': fobj})
                proc.start()
                data = data_q.get()
                proc.join()
            if isinstance(data, Exception):
                raise data
        except CommandError:
            log.error("Command '%s' failed, see %s for more details", cmd_str,
                      self.cmd_log_file)
            raise
        etime = data['elapsed_time']

        measurement = {'type': self.SYSRES,
                       'name': name,
                       'legend': legend}
        measurement['values'] = {'start_time': data['start_time'],
                                 'elapsed_time': etime,
                                 'rusage': data['rusage'],
                                 'iostat': data['iostat']}
        if save_bs:
            bs_file = self.save_buildstats(legend)
            measurement['values']['buildstats_file'] = \
                    os.path.relpath(bs_file, self.base_dir)

        self.measurements.append(measurement)

        # Append to 'times' array for globalres log
        e_sec = etime.total_seconds()
        self.times.append('{:d}:{:02d}:{:.2f}'.format(int(e_sec / 3600),
                                                      int((e_sec % 3600) / 60),
                                                       e_sec % 60))

    def measure_disk_usage(self, path, name, legend):
        """Estimate disk usage of a file or directory"""
        ret = runCmd2(['du', '-s', path])
        size = int(ret.output.split()[0])
        log.debug("Size of %s path is %s", path, size)
        measurement = {'type': self.DISKUSAGE,
                       'name': name,
                       'legend': legend}
        measurement['values'] = {'size': size}
        self.measurements.append(measurement)
        # Append to 'sizes' array for globalres log
        self.sizes.append(str(size))

    def save_buildstats(self, label=None):
        """Save buildstats"""
        def split_nevr(nevr):
            """Split name and version information from recipe "nevr" string"""
            name, e_v, revision = nevr.rsplit('-', 2)
            match = re.match(r'^((?P<epoch>[0-9]{1,5})_)?(?P<version>.*)$', e_v)
            version = match.group('version')
            epoch = match.group('epoch')
            return name, epoch, version, revision

        def bs_to_json(filename):
            """Convert (task) buildstats file into json format"""
            bs_json = {'iostat': {},
                       'rusage': {},
                       'child_rusage': {}}
            with open(filename) as fobj:
                for line in fobj.readlines():
                    key, val = line.split(':', 1)
                    val = val.strip()
                    if key == 'Started':
                        start_time = datetime.utcfromtimestamp(float(val))
                        bs_json['start_time'] = start_time
                    elif key == 'Ended':
                        end_time = datetime.utcfromtimestamp(float(val))
                    elif key.startswith('IO '):
                        split = key.split()
                        bs_json['iostat'][split[1]] = int(val)
                    elif key.find('rusage') >= 0:
                        split = key.split()
                        ru_key = split[-1]
                        if ru_key in ('ru_stime', 'ru_utime'):
                            val = float(val)
                        else:
                            val = int(val)
                        ru_type = 'rusage' if split[0] == 'rusage' else \
                                                          'child_rusage'
                        bs_json[ru_type][ru_key] = val
                    elif key == 'Status':
                        bs_json['status'] = val
            bs_json['elapsed_time'] = end_time - start_time
            return bs_json

        log.info('Saving buildstats in JSON format')
        bs_dirs = os.listdir(self.bb_vars['BUILDSTATS_BASE'])
        if len(bs_dirs) > 1:
            log.warning("Multiple buildstats found for test %s, only "
                        "archiving the last one", self.name)
        bs_dir = os.path.join(self.bb_vars['BUILDSTATS_BASE'], bs_dirs[-1])

        buildstats = []
        for fname in os.listdir(bs_dir):
            recipe_dir = os.path.join(bs_dir, fname)
            if not os.path.isdir(recipe_dir):
                continue
            name, epoch, version, revision = split_nevr(fname)
            recipe_bs = {'name': name,
                         'epoch': epoch,
                         'version': version,
                         'revision': revision,
                         'tasks': {}}
            for task in os.listdir(recipe_dir):
                recipe_bs['tasks'][task] = bs_to_json(os.path.join(recipe_dir,
                                                                   task))
            buildstats.append(recipe_bs)

        # Write buildstats into json file
        postfix = '.' + str_to_fn(label) if label else ''
        postfix += '.json'
        outfile = os.path.join(self.out_dir, 'buildstats' + postfix)
        with open(outfile, 'w') as fobj:
            json.dump(buildstats, fobj, indent=4, sort_keys=True,
                      cls=ResultsJsonEncoder)
        return outfile

    def rm_tmp(self):
        """Cleanup temporary/intermediate files and directories"""
        log.debug("Removing temporary and cache files")
        for name in ['bitbake.lock', 'conf/sanity_info',
                     self.bb_vars['TMPDIR']]:
            oe.path.remove(name, recurse=True)

    def rm_sstate(self):
        """Remove sstate directory"""
        log.debug("Removing sstate-cache")
        oe.path.remove(self.bb_vars['SSTATE_DIR'], recurse=True)

    def rm_cache(self):
        """Drop bitbake caches"""
        oe.path.remove(self.bb_vars['PERSISTENT_DIR'], recurse=True)

    @staticmethod
    def sync():
        """Sync and drop kernel caches"""
        log.debug("Syncing and dropping kernel caches""")
        KernelDropCaches.drop()
        os.sync()
        # Wait a bit for all the dirty blocks to be written onto disk
        time.sleep(3)


class BuildPerfTestLoader(unittest.TestLoader):
    """Test loader for build performance tests"""
    sortTestMethodsUsing = None


class BuildPerfTestRunner(unittest.TextTestRunner):
    """Test loader for build performance tests"""
    sortTestMethodsUsing = None

    def __init__(self, out_dir, *args, **kwargs):
        super(BuildPerfTestRunner, self).__init__(*args, **kwargs)
        self.out_dir = out_dir

    def _makeResult(self):
       return BuildPerfTestResult(self.out_dir, self.stream, self.descriptions,
                                  self.verbosity)