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GeezerVison is showing github.com — pyperformance/pyperformance/_benchmark.py at main · python/pyperformance Expand file tree/ Copy path_benchmark.pyMore file actions 313 lines (255 loc) · 7.98 KB / Copy path_benchmark.pyFile metadata and controls313 lines (255 loc) · 7.98 KB 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 __all__ = [ "Benchmark", "BenchmarkSpec", "check_name", "parse_benchmark", ] import os import os.path import sys from collections import namedtuple import pyperf from packaging.specifiers import SpecifierSet from . import _benchmark_metadata, _utils def check_name(name): _utils.check_name("_" + name) def parse_benchmark(entry, *, fail=True): name = entry version = None origin = None metafile = None if not f"_{name}".isidentifier(): if not fail: return None raise ValueError(f"unsupported benchmark name in {entry!r}") bench = BenchmarkSpec(name, version, origin) return bench, metafile class BenchmarkSpec(namedtuple("BenchmarkSpec", "name version origin")): __slots__ = () @classmethod def from_raw(cls, raw): if isinstance(raw, BenchmarkSpec): return raw, None elif isinstance(raw, str): return parse_benchmark(raw) else: raise ValueError(f"unsupported raw spec {raw!r}") def __new__(cls, name, version=None, origin=None): self = super().__new__(cls, name, version or None, origin or None) return self class Benchmark: _metadata = None def __init__(self, spec, metafile): spec, _metafile = BenchmarkSpec.from_raw(spec) if not metafile: if not _metafile: raise ValueError(f"missing metafile for {spec!r}") metafile = _metafile self.spec = spec self.metafile = metafile def __repr__(self): return f"{type(self).__name__}(spec={self.spec!r}, metafile={self.metafile!r})" def __hash__(self): return hash(self.spec) def __eq__(self, other): try: other_spec = other.spec except AttributeError: return NotImplemented return self.spec == other_spec def __gt__(self, other): try: other_spec = other.spec except AttributeError: return NotImplemented return self.spec > other_spec # __getattr__() gets weird when AttributeError comes out of # properties so we spell out all the aliased attributes. @property def name(self): return self.spec.name @property def version(self): version = self.spec.version if version is None: version = self._get_metadata_value("version", None) return version @property def origin(self): return self.spec.origin def _get_rootdir(self): try: return self._rootdir except AttributeError: script = self.runscript self._rootdir = os.path.dirname(script) if script else None return self._rootdir def _init_metadata(self): # assert self._metadata is None defaults = { "name": self.spec.name, "version": self.spec.version, } self._metadata, _ = _benchmark_metadata.load_metadata( self.metafile, defaults, ) def _get_metadata_value(self, key, default): try: return self._metadata[key] except TypeError: if self._metadata is not None: raise # re-raise self._init_metadata() except KeyError: pass return self._metadata.setdefault(key, default) @property def tags(self): return self._get_metadata_value("tags", []) @property def datadir(self): return self._get_metadata_value("datadir", None) @property def requirements_lockfile(self): try: return self._lockfile except AttributeError: lockfile = self._get_metadata_value("requirements_lockfile", None) if not lockfile: rootdir = self._get_rootdir() if rootdir: lockfile = os.path.join(rootdir, "requirements.txt") self._lockfile = lockfile return self._lockfile @property def runscript(self): return self._get_metadata_value("runscript", None) @property def extra_opts(self): return self._get_metadata_value("extra_opts", ()) @property def python(self): return SpecifierSet(self._get_metadata_value("python", "")) # Other metadata keys: # * base # * dependencies # * requirements def run( self, python, runid=None, pyperf_opts=None, *, venv=None, verbose=False, ): if venv and python == sys.executable: python = venv.python if not runid: from .run import get_run_id runid = get_run_id(python, self) runscript = self.runscript bench = _run_perf_script( python, runscript, runid, extra_opts=self.extra_opts, pyperf_opts=pyperf_opts, verbose=verbose, ) return bench ####################################### # internal implementation def _run_perf_script( python, runscript, runid, *, extra_opts=None, pyperf_opts=None, verbose=False, ): if not runscript: raise ValueError("missing runscript") if not isinstance(runscript, str): raise TypeError(f"runscript must be a string, got {runscript!r}") with _utils.temporary_file() as tmp: opts = [ *(extra_opts or ()), *(pyperf_opts or ()), "--output", tmp, ] if pyperf_opts and "--copy-env" in pyperf_opts: argv, env = _prep_cmd(python, runscript, opts, runid, lambda name: None) else: opts, inherit_envvar = _resolve_restricted_opts(opts) argv, env = _prep_cmd(python, runscript, opts, runid, inherit_envvar) hide_stderr = not verbose ec, _, stderr = _utils.run_cmd( argv, env=env, capture="stderr" if hide_stderr else None, ) if ec != 0: if hide_stderr: sys.stderr.flush() sys.stderr.write(stderr) sys.stderr.flush() # pyperf returns exit code 124 if the benchmark execution times out if ec == 124: raise TimeoutError("Benchmark timed out") else: raise RuntimeError("Benchmark died") return pyperf.BenchmarkSuite.load(tmp) def _prep_cmd(python, script, opts, runid, on_set_envvar=None): # Populate the environment variables. env = dict(os.environ) def set_envvar(name, value): env[name] = value if on_set_envvar is not None: on_set_envvar(name) # on_set_envvar() may update "opts" so all calls to set_envvar() # must happen before building argv. set_envvar("PYPERFORMANCE_RUNID", str(runid)) # Build argv. argv = [ python, "-u", script, *(opts or ()), ] return argv, env def _resolve_restricted_opts(opts): # Deal with --inherit-environ. FLAG = "--inherit-environ" resolved = [] idx = None for i, opt in enumerate(opts): if opt.startswith(FLAG + "="): idx = i + 1 resolved.append(FLAG) resolved.append(opt.partition("=")[-1]) resolved.extend(opts[idx:]) break elif opt == FLAG: idx = i + 1 resolved.append(FLAG) resolved.append(opts[idx]) resolved.extend(opts[idx + 1 :]) break else: resolved.append(opt) else: resolved.extend(["--inherit-environ", ""]) idx = len(resolved) - 1 inherited = set(resolved[idx].replace(",", " ").split()) def inherit_env_var(name): inherited.add(name) resolved[idx] = ",".join(inherited) return resolved, inherit_env_var def _insert_on_PYTHONPATH(entry, env): PYTHONPATH = env.get("PYTHONPATH", "").split(os.pathsep) PYTHONPATH.insert(0, entry) env["PYTHONPATH"] = os.pathsep.join(PYTHONPATH) |
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