tags-cache: directly perform a monimal walk for hgtagsfnodescache warming We do something narrower than the path retrieving data. So lets use dedicated code instead. This provides further useful speedup: ### 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-this-series: 19.947581 skip-fnode-filter: 18.916804 (-5.17%, -1.03) use-rev-num: 17.493725 (-12.30%, -2.45) this-changesets: 15.919466 (-20.19%, -4.03)

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  $ hg init repo

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  $ cd repo

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  $ touch unknown

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  $ touch a

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  $ hg add a

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  $ hg ci -m "1"

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  $ touch b

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  $ hg add b

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  $ hg ci -m "2"

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Should show unknown

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  $ hg status

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  ? unknown

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  $ hg revert -r 0 --all

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  removing b

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Should show unknown and b removed

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  $ hg status

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  R b

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  ? unknown

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Should show a and unknown

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  $ ls -A

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  .hg

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  a

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  unknown