tags-cache: skip the filternode step if we are not going to use it When warming the hgtagsfnodescache, we don't need the actual result, so we can simply skip the part that "filter" fnode we read from the cache. So provide a quite visible speed up to the top level `hg debugupdatecache` function. ### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog # benchmark.name = hg.debug.debug-update-cache # bin-env-vars.hg.flavor = default # bin-env-vars.hg.py-re2-module = default # benchmark.variants.pre-state = warm before: 19.947581 after: 18.916804 (-5.17%, -1.03)

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# Dummy extension that adds a delay after acquiring a lock.

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#

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# This extension can be used to test race conditions between lock acquisition.

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import os

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import time

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def reposetup(ui, repo):

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    class delayedlockrepo(repo.__class__):

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        def lock(self, wait=True):

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            delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))

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            if delay:

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                time.sleep(delay)

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            res = super(delayedlockrepo, self).lock(wait=wait)

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            delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))

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            if delay:

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                time.sleep(delay)

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            return res

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    repo.__class__ = delayedlockrepo