Mercurial > public > mercurial-scm > hg
comparison contrib/perf.py @ 42364:a09829e14fc0
perf: make sure to explicitly disable any profiler after the first iteration
The current code work, because of some edge behavior of the `profile` class. We
make it explicit that the profiler is not in effect more than once.
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Thu, 23 May 2019 19:05:39 +0200 |
| parents | 3293086ff663 |
| children | c2d10506725c |
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| 42363:b02f3aa2fab5 | 42364:a09829e14fc0 |
|---|---|
| 272 """dummy context manager""" | 272 """dummy context manager""" |
| 273 def __enter__(self): | 273 def __enter__(self): |
| 274 pass | 274 pass |
| 275 def __exit__(self, *args): | 275 def __exit__(self, *args): |
| 276 pass | 276 pass |
| 277 | |
| 278 NOOPCTX = noop() | |
| 277 | 279 |
| 278 def gettimer(ui, opts=None): | 280 def gettimer(ui, opts=None): |
| 279 """return a timer function and formatter: (timer, formatter) | 281 """return a timer function and formatter: (timer, formatter) |
| 280 | 282 |
| 281 This function exists to gather the creation of formatter in a single | 283 This function exists to gather the creation of formatter in a single |
| 403 gc.collect() | 405 gc.collect() |
| 404 results = [] | 406 results = [] |
| 405 begin = util.timer() | 407 begin = util.timer() |
| 406 count = 0 | 408 count = 0 |
| 407 if profiler is None: | 409 if profiler is None: |
| 408 profiler = noop() | 410 profiler = NOOPCTX |
| 409 for i in xrange(prerun): | 411 for i in xrange(prerun): |
| 410 if setup is not None: | 412 if setup is not None: |
| 411 setup() | 413 setup() |
| 412 func() | 414 func() |
| 413 keepgoing = True | 415 keepgoing = True |
| 415 if setup is not None: | 417 if setup is not None: |
| 416 setup() | 418 setup() |
| 417 with profiler: | 419 with profiler: |
| 418 with timeone() as item: | 420 with timeone() as item: |
| 419 r = func() | 421 r = func() |
| 422 profiler = NOOPCTX | |
| 420 count += 1 | 423 count += 1 |
| 421 results.append(item[0]) | 424 results.append(item[0]) |
| 422 cstop = util.timer() | 425 cstop = util.timer() |
| 423 # Look for a stop condition. | 426 # Look for a stop condition. |
| 424 elapsed = cstop - begin | 427 elapsed = cstop - begin |