upstream/mercurial-mirror Files · mercurial/cacheutil.py

compression: introduce an official `format.revlog-compression` option...

compression: introduce an official `format.revlog-compression` option This option supersedes the `experiment.format.compression` option. The value currently supported are zlib (default) and zstd (if Mercurial was compiled with zstd support). The option gained an explicit reference to `revlog` since this is the target usage here. Different storage methods might require different compression strategies. In our tests, using zstd give a significant CPU usage improvement (both compression and decompressing) while keeping similar repository size. Zstd as other interresting mode (dictionnary, pre-text, etc…) that are probably worth exploring. However, just plain switching from zlib to zstd provide a large benefit.

Boris Feld - - Load All Authors

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      # scmutil.py - Mercurial core utility functions

      #

      #  Copyright Matt Mackall <mpm@selenic.com> and other

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      from __future__ import absolute_import

      from . import repoview

      def cachetocopy(srcrepo):

          """return the list of cache file valuable to copy during a clone"""

          # In local clones we're copying all nodes, not just served

          # ones. Therefore copy all branch caches over.

          cachefiles = ['branch2']

          cachefiles += ['branch2-%s' % f for f in repoview.filtertable]

          cachefiles += ['rbc-names-v1', 'rbc-revs-v1']

          cachefiles += ['tags2']

          cachefiles += ['tags2-%s' % f for f in repoview.filtertable]

          cachefiles += ['hgtagsfnodes1']

          return cachefiles

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				# scmutil.py - Mercurial core utility functions
				#
				# Copyright Matt Mackall <mpm@selenic.com> and other
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.
				from __future__ import absolute_import

				from . import repoview

				def cachetocopy(srcrepo):
				"""return the list of cache file valuable to copy during a clone"""
				# In local clones we're copying all nodes, not just served
				# ones. Therefore copy all branch caches over.
				cachefiles = ['branch2']
				cachefiles += ['branch2-%s' % f for f in repoview.filtertable]
				cachefiles += ['rbc-names-v1', 'rbc-revs-v1']
				cachefiles += ['tags2']
				cachefiles += ['tags2-%s' % f for f in repoview.filtertable]
				cachefiles += ['hgtagsfnodes1']
				return cachefiles