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comparison mercurial/revlog.py @ 52172:72bc29f01570

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revlog: add glue to use a pure-Rust VFS This will save us a lot of calling back into Python, which is always horribly expensive. We are now faster in all benchmarked cases except for `log --patch` specifically on mozilla-try. Fixing this will happen in a later patch. ``` ### data-env-vars.name = mercurial-devel-2024-03-22-ds2-pnm # benchmark.name = hg.command.cat # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.files = all-root # benchmark.variants.output = plain # benchmark.variants.rev = tip e679697a6ca4: 1.760765 ~~~~~ 5559d7e63ec3: 1.555513 (-11.66%, -0.21) ### data-env-vars.name = mozilla-try-2024-03-26-ds2-pnm # benchmark.name = hg.command.cat # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.files = all-root # benchmark.variants.output = plain # benchmark.variants.rev = tip e679697a6ca4: 62.848869 ~~~~~ 5559d7e63ec3: 58.113051 (-7.54%, -4.74) ### data-env-vars.name = mozilla-try-2024-03-26-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 10 # benchmark.variants.patch = yes # benchmark.variants.rev = none e679697a6ca4: 3.173532 ~~~~~ 5559d7e63ec3: 3.543591 (+11.66%, +0.37) ### data-env-vars.name = mozilla-try-2024-03-26-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 1000 # benchmark.variants.patch = no # benchmark.variants.rev = none e679697a6ca4: 1.214698 ~~~~~ 5559d7e63ec3: 1.192478 (-1.83%, -0.02) ### data-env-vars.name = mozilla-unified-2024-03-22-ds2-pnm # benchmark.name = hg.command.cat # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.files = all-root # benchmark.variants.output = plain # benchmark.variants.rev = tip e679697a6ca4: 56.205474 ~~~~~ 5559d7e63ec3: 51.520074 (-8.34%, -4.69) ### data-env-vars.name = mozilla-unified-2024-03-22-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 10 # benchmark.variants.patch = yes # benchmark.variants.rev = none e679697a6ca4: 2.105419 ~~~~~ 5559d7e63ec3: 2.051849 (-2.54%, -0.05) ### data-env-vars.name = mozilla-unified-2024-03-22-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 1000 # benchmark.variants.patch = no # benchmark.variants.rev = none e679697a6ca4: 0.309960 ~~~~~ 5559d7e63ec3: 0.299035 (-3.52%, -0.01) ### data-env-vars.name = tryton-public-2024-03-22-ds2-pnm # benchmark.name = hg.command.cat # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.files = all-root # benchmark.variants.output = plain # benchmark.variants.rev = tip e679697a6ca4: 1.849832 ~~~~~ 5559d7e63ec3: 1.805076 (-2.42%, -0.04) ### data-env-vars.name = tryton-public-2024-03-22-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 10 # benchmark.variants.patch = yes # benchmark.variants.rev = none e679697a6ca4: 0.289521 ~~~~~ 5559d7e63ec3: 0.279889 (-3.33%, -0.01) ### data-env-vars.name = tryton-public-2024-03-22-ds2-pnm # benchmark.name = hg.command.log # bin-env-vars.hg.flavor = rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.limit-rev = 1000 # benchmark.variants.patch = no # benchmark.variants.rev = none e679697a6ca4: 0.332270 ~~~~~ 5559d7e63ec3: 0.323324 (-2.69%, -0.01) ```
author Rapha?l Gom?s <rgomes@octobus.net>
date Mon, 29 Jul 2024 20:39:34 +0200
parents 7346f93be7a4
children bcd4962e0df9
comparison
equal deleted inserted replaced
52171:bd43465af568 52172:72bc29f01570
1791 use_rust_index = True 1791 use_rust_index = True
1792 1792
1793 if self._format_version != REVLOGV1: 1793 if self._format_version != REVLOGV1:
1794 use_rust_index = False 1794 use_rust_index = False
1795 1795
1796 if hasattr(self.opener, "fncache"):
1797 vfs = self.opener.vfs
1798 if not self.opener.uses_dotencode:
1799 use_rust_index = False
1800 if not isinstance(vfs, vfsmod.vfs):
1801 # Be cautious since we don't support other vfs
1802 use_rust_index = False
1803 else:
1804 # Rust only supports repos with fncache
1805 use_rust_index = False
1806
1796 self._parse_index = parse_index_v1 1807 self._parse_index = parse_index_v1
1797 if self._format_version == REVLOGV0: 1808 if self._format_version == REVLOGV0:
1798 self._parse_index = revlogv0.parse_index_v0 1809 self._parse_index = revlogv0.parse_index_v0
1799 elif self._format_version == REVLOGV2: 1810 elif self._format_version == REVLOGV2:
1800 self._parse_index = parse_index_v2 1811 self._parse_index = parse_index_v2
1826 default_compression_header = None 1837 default_compression_header = None
1827 else: 1838 else:
1828 default_compression_header = self._docket.default_compression_header 1839 default_compression_header = self._docket.default_compression_header
1829 1840
1830 if self.uses_rust: 1841 if self.uses_rust:
1842 vfs_is_readonly = False
1843 fncache = None
1844
1845 if hasattr(self.opener, "vfs"):
1846 vfs = self.opener
1847 if isinstance(vfs, vfsmod.readonlyvfs):
1848 vfs_is_readonly = True
1849 vfs = vfs.vfs
1850 fncache = vfs.fncache
1851 vfs = vfs.vfs
1852 else:
1853 vfs = self.opener
1854
1855 vfs_base = vfs.base
1856 assert fncache is not None, "Rust only supports repos with fncache"
1857
1831 self._inner = rustrevlog.InnerRevlog( 1858 self._inner = rustrevlog.InnerRevlog(
1832 opener=RustVFSWrapper(self.opener), 1859 vfs_base=vfs_base,
1860 fncache=fncache,
1861 vfs_is_readonly=vfs_is_readonly,
1833 index_data=index, 1862 index_data=index,
1834 index_file=self._indexfile, 1863 index_file=self._indexfile,
1835 data_file=self._datafile, 1864 data_file=self._datafile,
1836 sidedata_file=self._sidedatafile, 1865 sidedata_file=self._sidedatafile,
1837 inline=self._inline, 1866 inline=self._inline,