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from __future__ import division |
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from __future__ import print_function |
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import argparse |
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import operator |
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import platform |
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import sys |
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import traceback |
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from collections import defaultdict |
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from datetime import datetime |
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import pytest |
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from . import __version__ |
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from .fixture import BenchmarkFixture |
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from .session import BenchmarkSession |
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from .session import PerformanceRegression |
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from .timers import default_timer |
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from .utils import NameWrapper |
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from .utils import format_dict |
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from .utils import get_commit_info |
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from .utils import get_current_time |
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from .utils import get_tag |
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from .utils import parse_columns |
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from .utils import parse_compare_fail |
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from .utils import parse_name_format |
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from .utils import parse_rounds |
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from .utils import parse_save |
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from .utils import parse_seconds |
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from .utils import parse_sort |
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from .utils import parse_timer |
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from .utils import parse_warmup |
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def pytest_report_header(config): |
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bs = config._benchmarksession |
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return ("benchmark: {version} (defaults:" |
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" timer={timer}" |
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" disable_gc={0[disable_gc]}" |
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" min_rounds={0[min_rounds]}" |
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" min_time={0[min_time]}" |
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" max_time={0[max_time]}" |
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" calibration_precision={0[calibration_precision]}" |
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" warmup={0[warmup]}" |
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" warmup_iterations={0[warmup_iterations]}" |
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")").format( |
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bs.options, |
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version=__version__, |
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timer=bs.options.get("timer"), |
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) |
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def add_display_options(addoption, prefix="benchmark-"): |
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addoption( |
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"--{0}sort".format(prefix), |
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metavar="COL", type=parse_sort, default="min", |
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help="Column to sort on. Can be one of: 'min', 'max', 'mean', 'stddev', " |
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"'name', 'fullname'. Default: %(default)r" |
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) |
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addoption( |
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"--{0}group-by".format(prefix), |
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metavar="LABEL", default="group", |
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help="How to group tests. Can be one of: 'group', 'name', 'fullname', 'func', 'fullfunc', " |
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"'param' or 'param:NAME', where NAME is the name passed to @pytest.parametrize." |
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" Default: %(default)r" |
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) |
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addoption( |
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"--{0}columns".format(prefix), |
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metavar="LABELS", type=parse_columns, |
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default="min, max, mean, stddev, median, iqr, outliers, rounds, iterations", |
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help="Comma-separated list of columns to show in the result table. Default: %(default)r" |
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) |
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addoption( |
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"--{0}name".format(prefix), |
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metavar="FORMAT", type=parse_name_format, |
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default="normal", |
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help="How to format names in results. Can be one of 'short', 'normal', 'long'. Default: %(default)r" |
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) |
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def add_histogram_options(addoption, prefix="benchmark-"): |
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filename_prefix = "benchmark_%s" % get_current_time() |
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addoption( |
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"--{0}histogram".format(prefix), |
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action="append", metavar="FILENAME-PREFIX", nargs="?", default=[], const=filename_prefix, |
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help="Plot graphs of min/max/avg/stddev over time in FILENAME-PREFIX-test_name.svg. If FILENAME-PREFIX contains" |
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" slashes ('/') then directories will be created. Default: %r" % filename_prefix |
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) |
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def add_csv_options(addoption, prefix="benchmark-"): |
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filename_prefix = "benchmark_%s" % get_current_time() |
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addoption( |
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"--{0}csv".format(prefix), |
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action="append", metavar="FILENAME", nargs="?", default=[], const=filename_prefix, |
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help="Save a csv report. If FILENAME contains" |
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" slashes ('/') then directories will be created. Default: %r" % filename_prefix |
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) |
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def add_global_options(addoption, prefix="benchmark-"): |
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addoption( |
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"--{0}storage".format(prefix), |
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metavar="URI", default="file://./.benchmarks", |
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help="Specify a path to store the runs as uri in form file://path or" |
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" elasticsearch+http[s]://host1,host2/[index/doctype?project_name=Project] " |
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"(when --benchmark-save or --benchmark-autosave are used). For backwards compatibility unexpected values " |
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"are converted to file://<value>. Default: %(default)r.", |
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) |
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addoption( |
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"--{0}verbose".format(prefix), |
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action="store_true", default=False, |
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help="Dump diagnostic and progress information." |
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) |
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def pytest_addoption(parser): |
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group = parser.getgroup("benchmark") |
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group.addoption( |
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"--benchmark-min-time", |
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metavar="SECONDS", type=parse_seconds, default="0.000005", |
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help="Minimum time per round in seconds. Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-max-time", |
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metavar="SECONDS", type=parse_seconds, default="1.0", |
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help="Maximum run time per test - it will be repeated until this total time is reached. It may be " |
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"exceeded if test function is very slow or --benchmark-min-rounds is large (it takes precedence). " |
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"Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-min-rounds", |
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metavar="NUM", type=parse_rounds, default=5, |
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help="Minimum rounds, even if total time would exceed `--max-time`. Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-timer", |
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metavar="FUNC", type=parse_timer, default=str(NameWrapper(default_timer)), |
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help="Timer to use when measuring time. Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-calibration-precision", |
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metavar="NUM", type=int, default=10, |
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help="Precision to use when calibrating number of iterations. Precision of 10 will make the timer look 10 times" |
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" more accurate, at a cost of less precise measure of deviations. Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-warmup", |
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metavar="KIND", nargs="?", default=parse_warmup("auto"), type=parse_warmup, |
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help="Activates warmup. Will run the test function up to number of times in the calibration phase. " |
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"See `--benchmark-warmup-iterations`. Note: Even the warmup phase obeys --benchmark-max-time. " |
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"Available KIND: 'auto', 'off', 'on'. Default: 'auto' (automatically activate on PyPy)." |
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) |
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group.addoption( |
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"--benchmark-warmup-iterations", |
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metavar="NUM", type=int, default=100000, |
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help="Max number of iterations to run in the warmup phase. Default: %(default)r" |
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) |
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group.addoption( |
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"--benchmark-disable-gc", |
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action="store_true", default=False, |
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help="Disable GC during benchmarks." |
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) |
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group.addoption( |
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"--benchmark-skip", |
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action="store_true", default=False, |
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help="Skip running any tests that contain benchmarks." |
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) |
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group.addoption( |
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"--benchmark-disable", |
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action="store_true", default=False, |
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help="Disable benchmarks. Benchmarked functions are only ran once and no stats are reported. Use this is you " |
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"want to run the test but don't do any benchmarking." |
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) |
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group.addoption( |
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"--benchmark-enable", |
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action="store_true", default=False, |
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help="Forcibly enable benchmarks. Use this option to override --benchmark-disable (in case you have it in " |
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"pytest configuration)." |
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) |
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group.addoption( |
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"--benchmark-only", |
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action="store_true", default=False, |
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help="Only run benchmarks." |
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) |
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group.addoption( |
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"--benchmark-save", |
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metavar="NAME", type=parse_save, |
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help="Save the current run into 'STORAGE-PATH/counter_NAME.json'." |
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) |
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tag = get_tag() |
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group.addoption( |
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"--benchmark-autosave", |
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action='store_const', const=tag, |
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help="Autosave the current run into 'STORAGE-PATH/counter_%s.json" % tag, |
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) |
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group.addoption( |
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"--benchmark-save-data", |
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action="store_true", |
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help="Use this to make --benchmark-save and --benchmark-autosave include all the timing data," |
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" not just the stats.", |
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) |
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group.addoption( |
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"--benchmark-json", |
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metavar="PATH", type=argparse.FileType('wb'), |
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help="Dump a JSON report into PATH. " |
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"Note that this will include the complete data (all the timings, not just the stats)." |
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) |
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group.addoption( |
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"--benchmark-compare", |
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metavar="NUM|_ID", nargs="?", default=[], const=True, |
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help="Compare the current run against run NUM (or prefix of _id in elasticsearch) or the latest " |
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"saved run if unspecified." |
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) |
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group.addoption( |
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"--benchmark-compare-fail", |
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metavar="EXPR", nargs="+", type=parse_compare_fail, |
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help="Fail test if performance regresses according to given EXPR" |
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" (eg: min:5%% or mean:0.001 for number of seconds). Can be used multiple times." |
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) |
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group.addoption( |
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"--benchmark-cprofile", |
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metavar="COLUMN", default=None, |
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choices=['ncalls_recursion', 'ncalls', 'tottime', 'tottime_per', 'cumtime', 'cumtime_per', 'function_name'], |
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help="If specified measure one run with cProfile and stores 10 top functions." |
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" Argument is a column to sort by. Available columns: 'ncallls_recursion'," |
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" 'ncalls', 'tottime', 'tottime_per', 'cumtime', 'cumtime_per', 'function_name'." |
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) |
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add_global_options(group.addoption) |
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add_display_options(group.addoption) |
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add_histogram_options(group.addoption) |
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def pytest_addhooks(pluginmanager): |
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from . import hookspec |
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method = getattr(pluginmanager, "add_hookspecs", None) |
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if method is None: |
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method = pluginmanager.addhooks |
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method(hookspec) |
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def pytest_benchmark_compare_machine_info(config, benchmarksession, machine_info, compared_benchmark): |
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machine_info = format_dict(machine_info) |
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compared_machine_info = format_dict(compared_benchmark["machine_info"]) |
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if compared_machine_info != machine_info: |
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benchmarksession.logger.warn( |
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"BENCHMARK-C6", |
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"Benchmark machine_info is different. Current: %s VS saved: %s." % ( |
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machine_info, |
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compared_machine_info, |
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), |
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fslocation=benchmarksession.storage.location |
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) |
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258
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if hasattr(pytest, 'hookimpl'): |
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_hookwrapper = pytest.hookimpl(hookwrapper=True) |
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else: |
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_hookwrapper = pytest.mark.hookwrapper |
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263
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264
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@_hookwrapper |
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def pytest_runtest_call(item): |
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bs = item.config._benchmarksession |
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fixure = hasattr(item, "funcargs") and item.funcargs.get("benchmark") |
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if isinstance(fixure, BenchmarkFixture): |
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if bs.skip: |
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pytest.skip("Skipping benchmark (--benchmark-skip active).") |
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else: |
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yield |
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else: |
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if bs.only: |
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pytest.skip("Skipping non-benchmark (--benchmark-only active).") |
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else: |
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yield |
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279
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280
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def pytest_benchmark_group_stats(config, benchmarks, group_by): |
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groups = defaultdict(list) |
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for bench in benchmarks: |
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key = () |
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284
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for grouping in group_by.split(','): |
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if grouping == "group": |
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key += bench["group"], |
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elif grouping == "name": |
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key += bench["name"], |
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elif grouping == "func": |
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key += bench["name"].split("[")[0], |
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elif grouping == "fullname": |
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key += bench["fullname"], |
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elif grouping == "fullfunc": |
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key += bench["fullname"].split("[")[0], |
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elif grouping == "param": |
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key += bench["param"], |
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297
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elif grouping.startswith("param:"): |
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param_name = grouping[len("param:"):] |
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299
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key += '%s=%s' % (param_name, bench["params"][param_name]), |
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300
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else: |
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raise NotImplementedError("Unsupported grouping %r." % group_by) |
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groups[' '.join(str(p) for p in key if p) or None].append(bench) |
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304
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for grouped_benchmarks in groups.values(): |
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grouped_benchmarks.sort(key=operator.itemgetter("fullname" if "full" in group_by else "name")) |
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return sorted(groups.items(), key=lambda pair: pair[0] or "") |
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308
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309
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@_hookwrapper |
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def pytest_sessionfinish(session, exitstatus): |
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session.config._benchmarksession.finish() |
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yield |
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313
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314
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315
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def pytest_terminal_summary(terminalreporter): |
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316
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try: |
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317
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terminalreporter.config._benchmarksession.display(terminalreporter) |
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318
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except PerformanceRegression: |
|
319
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raise |
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320
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except Exception: |
|
321
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terminalreporter.config._benchmarksession.logger.error("\n%s" % traceback.format_exc()) |
|
322
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raise |
|
323
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324
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325
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def get_cpu_info(): |
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326
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import cpuinfo |
|
327
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all_info = cpuinfo.get_cpu_info() |
|
328
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all_info = all_info or {} |
|
329
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info = {} |
|
330
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|
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for key in ('vendor_id', 'hardware', 'brand'): |
|
331
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info[key] = all_info.get(key, 'unknown') |
|
332
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return info |
|
333
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|
334
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|
335
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def pytest_benchmark_generate_machine_info(): |
|
336
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|
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python_implementation = platform.python_implementation() |
|
337
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|
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python_implementation_version = platform.python_version() |
|
338
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|
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if python_implementation == 'PyPy': |
|
339
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|
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python_implementation_version = '%d.%d.%d' % sys.pypy_version_info[:3] |
|
340
|
|
|
if sys.pypy_version_info.releaselevel != 'final': |
|
341
|
|
|
python_implementation_version += '-%s%d' % sys.pypy_version_info[3:] |
|
342
|
|
|
return { |
|
343
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|
|
"node": platform.node(), |
|
344
|
|
|
"processor": platform.processor(), |
|
345
|
|
|
"machine": platform.machine(), |
|
346
|
|
|
"python_compiler": platform.python_compiler(), |
|
347
|
|
|
"python_implementation": python_implementation, |
|
348
|
|
|
"python_implementation_version": python_implementation_version, |
|
349
|
|
|
"python_version": platform.python_version(), |
|
350
|
|
|
"python_build": platform.python_build(), |
|
351
|
|
|
"release": platform.release(), |
|
352
|
|
|
"system": platform.system(), |
|
353
|
|
|
"cpu": get_cpu_info(), |
|
354
|
|
|
} |
|
355
|
|
|
|
|
356
|
|
|
|
|
357
|
|
|
def pytest_benchmark_generate_commit_info(config): |
|
358
|
|
|
return get_commit_info(config.getoption("benchmark_project_name", None)) |
|
359
|
|
|
|
|
360
|
|
|
|
|
361
|
|
|
def pytest_benchmark_generate_json(config, benchmarks, include_data, machine_info, commit_info): |
|
362
|
|
|
benchmarks_json = [] |
|
363
|
|
|
output_json = { |
|
364
|
|
|
"machine_info": machine_info, |
|
365
|
|
|
"commit_info": commit_info, |
|
366
|
|
|
"benchmarks": benchmarks_json, |
|
367
|
|
|
"datetime": datetime.utcnow().isoformat(), |
|
368
|
|
|
"version": __version__, |
|
369
|
|
|
} |
|
370
|
|
|
for bench in benchmarks: |
|
371
|
|
|
if not bench.has_error: |
|
372
|
|
|
benchmarks_json.append(bench.as_dict(include_data=include_data)) |
|
373
|
|
|
return output_json |
|
374
|
|
|
|
|
375
|
|
|
|
|
376
|
|
|
@pytest.fixture(scope="function") |
|
377
|
|
|
def benchmark(request): |
|
378
|
|
|
bs = request.config._benchmarksession |
|
379
|
|
|
|
|
380
|
|
|
if bs.skip: |
|
381
|
|
|
pytest.skip("Benchmarks are skipped (--benchmark-skip was used).") |
|
382
|
|
|
else: |
|
383
|
|
|
node = request.node |
|
384
|
|
|
marker = node.get_marker("benchmark") |
|
385
|
|
|
options = marker.kwargs if marker else {} |
|
386
|
|
|
if "timer" in options: |
|
387
|
|
|
options["timer"] = NameWrapper(options["timer"]) |
|
388
|
|
|
fixture = BenchmarkFixture( |
|
389
|
|
|
node, |
|
390
|
|
|
add_stats=bs.benchmarks.append, |
|
391
|
|
|
logger=bs.logger, |
|
392
|
|
|
warner=request.node.warn, |
|
393
|
|
|
disabled=bs.disabled, |
|
394
|
|
|
**dict(bs.options, **options) |
|
395
|
|
|
) |
|
396
|
|
|
request.addfinalizer(fixture._cleanup) |
|
397
|
|
|
return fixture |
|
398
|
|
|
|
|
399
|
|
|
|
|
400
|
|
|
@pytest.fixture(scope="function") |
|
401
|
|
|
def benchmark_weave(benchmark): |
|
402
|
|
|
return benchmark.weave |
|
403
|
|
|
|
|
404
|
|
|
|
|
405
|
|
|
def pytest_runtest_setup(item): |
|
406
|
|
|
marker = item.get_marker("benchmark") |
|
407
|
|
|
if marker: |
|
408
|
|
|
if marker.args: |
|
409
|
|
|
raise ValueError("benchmark mark can't have positional arguments.") |
|
410
|
|
|
for name in marker.kwargs: |
|
411
|
|
|
if name not in ( |
|
412
|
|
|
"max_time", "min_rounds", "min_time", "timer", "group", "disable_gc", "warmup", |
|
413
|
|
|
"warmup_iterations", "calibration_precision"): |
|
414
|
|
|
raise ValueError("benchmark mark can't have %r keyword argument." % name) |
|
415
|
|
|
|
|
416
|
|
|
|
|
417
|
|
|
@pytest.mark.trylast # force the other plugins to initialise, fixes issue with capture not being properly initialised |
|
418
|
|
|
def pytest_configure(config): |
|
419
|
|
|
config.addinivalue_line("markers", "benchmark: mark a test with custom benchmark settings.") |
|
420
|
|
|
config._benchmarksession = BenchmarkSession(config) |
|
421
|
|
|
config.pluginmanager.register(config._benchmarksession, "pytest-benchmark") |
|
422
|
|
|
|
ionelmc /
pytest-benchmark
