| # Copyright (c) 2016, Intel Corporation. |
| # |
| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| """Build performance test base classes and functionality""" |
| import json |
| import logging |
| import os |
| import re |
| import resource |
| import socket |
| import shutil |
| import time |
| import unittest |
| import xml.etree.ElementTree as ET |
| from collections import OrderedDict |
| from datetime import datetime, timedelta |
| from functools import partial |
| from multiprocessing import Process |
| from multiprocessing import SimpleQueue |
| from xml.dom import minidom |
| |
| 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, limit_exc_output=40) |
| |
| |
| 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 |
| self.hostname = socket.gethostname() |
| self.product = os.getenv('OE_BUILDPERFTEST_PRODUCT', 'oe-core') |
| self.start_time = self.elapsed_time = None |
| self.successes = [] |
| |
| def addSuccess(self, test): |
| """Record results from successful tests""" |
| super(BuildPerfTestResult, self).addSuccess(test) |
| self.successes.append(test) |
| |
| def addError(self, test, err): |
| """Record results from crashed test""" |
| test.err = err |
| super(BuildPerfTestResult, self).addError(test, err) |
| |
| def addFailure(self, test, err): |
| """Record results from failed test""" |
| test.err = err |
| super(BuildPerfTestResult, self).addFailure(test, err) |
| |
| def addExpectedFailure(self, test, err): |
| """Record results from expectedly failed test""" |
| test.err = err |
| super(BuildPerfTestResult, self).addExpectedFailure(test, err) |
| |
| def startTest(self, test): |
| """Pre-test hook""" |
| test.base_dir = self.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 |
| |
| def all_results(self): |
| compound = [('SUCCESS', t, None) for t in self.successes] + \ |
| [('FAILURE', t, m) for t, m in self.failures] + \ |
| [('ERROR', t, m) for t, m in self.errors] + \ |
| [('EXPECTED_FAILURE', t, m) for t, m in self.expectedFailures] + \ |
| [('UNEXPECTED_SUCCESS', t, None) for t in self.unexpectedSuccesses] + \ |
| [('SKIPPED', t, m) for t, m in self.skipped] |
| return sorted(compound, key=lambda info: info[1].start_time) |
| |
| |
| def write_buildstats_json(self): |
| """Write buildstats file""" |
| buildstats = OrderedDict() |
| for _, test, _ in self.all_results(): |
| for key, val in test.buildstats.items(): |
| buildstats[test.name + '.' + key] = val |
| with open(os.path.join(self.out_dir, 'buildstats.json'), 'w') as fobj: |
| json.dump(buildstats, fobj, cls=ResultsJsonEncoder) |
| |
| |
| def write_results_json(self): |
| """Write test results into a json-formatted file""" |
| results = OrderedDict([('tester_host', self.hostname), |
| ('start_time', self.start_time), |
| ('elapsed_time', self.elapsed_time), |
| ('tests', OrderedDict())]) |
| |
| for status, test, reason in self.all_results(): |
| test_result = OrderedDict([('name', test.name), |
| ('description', test.shortDescription()), |
| ('status', status), |
| ('start_time', test.start_time), |
| ('elapsed_time', test.elapsed_time), |
| ('measurements', test.measurements)]) |
| if status in ('ERROR', 'FAILURE', 'EXPECTED_FAILURE'): |
| test_result['message'] = str(test.err[1]) |
| test_result['err_type'] = test.err[0].__name__ |
| test_result['err_output'] = reason |
| elif reason: |
| test_result['message'] = reason |
| |
| results['tests'][test.name] = test_result |
| |
| with open(os.path.join(self.out_dir, 'results.json'), 'w') as fobj: |
| json.dump(results, fobj, indent=4, |
| cls=ResultsJsonEncoder) |
| |
| def write_results_xml(self): |
| """Write test results into a JUnit XML file""" |
| top = ET.Element('testsuites') |
| suite = ET.SubElement(top, 'testsuite') |
| suite.set('name', 'oeqa.buildperf') |
| suite.set('timestamp', self.start_time.isoformat()) |
| suite.set('time', str(self.elapsed_time.total_seconds())) |
| suite.set('hostname', self.hostname) |
| suite.set('failures', str(len(self.failures) + len(self.expectedFailures))) |
| suite.set('errors', str(len(self.errors))) |
| suite.set('skipped', str(len(self.skipped))) |
| |
| test_cnt = 0 |
| for status, test, reason in self.all_results(): |
| test_cnt += 1 |
| testcase = ET.SubElement(suite, 'testcase') |
| testcase.set('classname', test.__module__ + '.' + test.__class__.__name__) |
| testcase.set('name', test.name) |
| testcase.set('description', test.shortDescription()) |
| testcase.set('timestamp', test.start_time.isoformat()) |
| testcase.set('time', str(test.elapsed_time.total_seconds())) |
| if status in ('ERROR', 'FAILURE', 'EXP_FAILURE'): |
| if status in ('FAILURE', 'EXP_FAILURE'): |
| result = ET.SubElement(testcase, 'failure') |
| else: |
| result = ET.SubElement(testcase, 'error') |
| result.set('message', str(test.err[1])) |
| result.set('type', test.err[0].__name__) |
| result.text = reason |
| elif status == 'SKIPPED': |
| result = ET.SubElement(testcase, 'skipped') |
| result.text = reason |
| elif status not in ('SUCCESS', 'UNEXPECTED_SUCCESS'): |
| raise TypeError("BUG: invalid test status '%s'" % status) |
| |
| for data in test.measurements.values(): |
| measurement = ET.SubElement(testcase, data['type']) |
| measurement.set('name', data['name']) |
| measurement.set('legend', data['legend']) |
| vals = data['values'] |
| if data['type'] == BuildPerfTestCase.SYSRES: |
| ET.SubElement(measurement, 'time', |
| timestamp=vals['start_time'].isoformat()).text = \ |
| str(vals['elapsed_time'].total_seconds()) |
| attrib = dict((k, str(v)) for k, v in vals['iostat'].items()) |
| ET.SubElement(measurement, 'iostat', attrib=attrib) |
| attrib = dict((k, str(v)) for k, v in vals['rusage'].items()) |
| ET.SubElement(measurement, 'rusage', attrib=attrib) |
| elif data['type'] == BuildPerfTestCase.DISKUSAGE: |
| ET.SubElement(measurement, 'size').text = str(vals['size']) |
| else: |
| raise TypeError('BUG: unsupported measurement type') |
| |
| suite.set('tests', str(test_cnt)) |
| |
| # Use minidom for pretty-printing |
| dom_doc = minidom.parseString(ET.tostring(top, 'utf-8')) |
| with open(os.path.join(self.out_dir, 'results.xml'), 'w') as fobj: |
| dom_doc.writexml(fobj, addindent=' ', newl='\n', encoding='utf-8') |
| |
| |
| 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 = OrderedDict() |
| self.buildstats = OrderedDict() |
| # self.err is supposed to be a tuple from sys.exc_info() |
| self.err = None |
| self.bb_vars = get_bb_vars() |
| # TODO: remove 'times' and 'sizes' arrays when globalres support is |
| # removed |
| self.times = [] |
| self.sizes = [] |
| |
| @property |
| def tmp_dir(self): |
| return os.path.join(self.base_dir, self.name + '.tmp') |
| |
| def shortDescription(self): |
| return super(BuildPerfTestCase, self).shortDescription() or "" |
| |
| def setUp(self): |
| """Set-up fixture for each test""" |
| if not os.path.isdir(self.tmp_dir): |
| os.mkdir(self.tmp_dir) |
| if self.build_target: |
| self.run_cmd(['bitbake', self.build_target, '--runall=fetch']) |
| |
| def tearDown(self): |
| """Tear-down fixture for each test""" |
| if os.path.isdir(self.tmp_dir): |
| shutil.rmtree(self.tmp_dir) |
| |
| 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 run_cmd(self, cmd): |
| """Convenience method for running a command""" |
| cmd_str = cmd if isinstance(cmd, str) else ' '.join(cmd) |
| log.info("Logging command: %s", cmd_str) |
| try: |
| runCmd2(cmd) |
| except CommandError as err: |
| log.error("Command failed: %s", err.retcode) |
| raise |
| |
| def _append_measurement(self, measurement): |
| """Simple helper for adding measurements results""" |
| if measurement['name'] in self.measurements: |
| raise ValueError('BUG: two measurements with the same name in {}'.format( |
| self.__class__.__name__)) |
| self.measurements[measurement['name']] = measurement |
| |
| 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 = OrderedDict() |
| with open('/proc/{}/io'.format(os.getpid())) as fobj: |
| for line in fobj.readlines(): |
| key, val = line.split(':') |
| iostat[key] = int(val) |
| rusage = OrderedDict() |
| # 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: |
| proc = Process(target=_worker, args=(data_q, cmd,)) |
| proc.start() |
| data = data_q.get() |
| proc.join() |
| if isinstance(data, Exception): |
| raise data |
| except CommandError: |
| log.error("Command '%s' failed", cmd_str) |
| raise |
| etime = data['elapsed_time'] |
| |
| measurement = OrderedDict([('type', self.SYSRES), |
| ('name', name), |
| ('legend', legend)]) |
| measurement['values'] = OrderedDict([('start_time', data['start_time']), |
| ('elapsed_time', etime), |
| ('rusage', data['rusage']), |
| ('iostat', data['iostat'])]) |
| if save_bs: |
| self.save_buildstats(name) |
| |
| self._append_measurement(measurement) |
| |
| # Append to 'times' array for globalres log |
| e_sec = etime.total_seconds() |
| self.times.append('{:d}:{:02d}:{:05.2f}'.format(int(e_sec / 3600), |
| int((e_sec % 3600) / 60), |
| e_sec % 60)) |
| |
| def measure_disk_usage(self, path, name, legend, apparent_size=False): |
| """Estimate disk usage of a file or directory""" |
| cmd = ['du', '-s', '--block-size', '1024'] |
| if apparent_size: |
| cmd.append('--apparent-size') |
| cmd.append(path) |
| |
| ret = runCmd2(cmd) |
| size = int(ret.output.split()[0]) |
| log.debug("Size of %s path is %s", path, size) |
| measurement = OrderedDict([('type', self.DISKUSAGE), |
| ('name', name), |
| ('legend', legend)]) |
| measurement['values'] = OrderedDict([('size', size)]) |
| self._append_measurement(measurement) |
| # Append to 'sizes' array for globalres log |
| self.sizes.append(str(size)) |
| |
| def save_buildstats(self, measurement_name): |
| """Save buildstats""" |
| def split_nevr(nevr): |
| """Split name and version information from recipe "nevr" string""" |
| n_e_v, revision = nevr.rsplit('-', 1) |
| match = re.match(r'^(?P<name>\S+)-((?P<epoch>[0-9]{1,5})_)?(?P<version>[0-9]\S*)$', |
| n_e_v) |
| if not match: |
| # If we're not able to parse a version starting with a number, just |
| # take the part after last dash |
| match = re.match(r'^(?P<name>\S+)-((?P<epoch>[0-9]{1,5})_)?(?P<version>[^-]+)$', |
| n_e_v) |
| name = match.group('name') |
| 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 = OrderedDict() |
| iostat = OrderedDict() |
| rusage = OrderedDict() |
| 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() |
| 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) |
| rusage[ru_key] = rusage.get(ru_key, 0) + val |
| elif key == 'Status': |
| bs_json['status'] = val |
| bs_json['elapsed_time'] = end_time - start_time |
| bs_json['rusage'] = rusage |
| bs_json['iostat'] = iostat |
| return bs_json |
| |
| log.info('Saving buildstats in JSON format') |
| bs_dirs = sorted(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) or fname == "reduced_proc_pressure": |
| continue |
| name, epoch, version, revision = split_nevr(fname) |
| recipe_bs = OrderedDict((('name', name), |
| ('epoch', epoch), |
| ('version', version), |
| ('revision', revision), |
| ('tasks', OrderedDict()))) |
| for task in os.listdir(recipe_dir): |
| recipe_bs['tasks'][task] = bs_to_json(os.path.join(recipe_dir, |
| task)) |
| buildstats.append(recipe_bs) |
| |
| self.buildstats[measurement_name] = buildstats |
| |
| def rm_tmp(self): |
| """Cleanup temporary/intermediate files and directories""" |
| log.debug("Removing temporary and cache files") |
| for name in ['bitbake.lock', 'cache/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""" |
| runCmd2('bitbake -m', ignore_status=True) |
| 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) |