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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#!/usr/bin/env python3

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#

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# A tool to help producing large and poorly compressible files

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#

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# Usage:

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#   $TESTDIR/seq.py 1000 | $TESTDIR/sha256line.py > my-file.txt

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import hashlib

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import sys

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for line in sys.stdin:

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    print(hashlib.sha256(line.encode('utf8')).hexdigest())