upstream/mercurial-mirror Files · hgext/narrow/narrowrepo.py

revlog: don't cache parsed tuples in the C module...

revlog: don't cache parsed tuples in the C module A cached entry creates ~8 Python objects per cached changeset, which comes to around 200 Bytes per cached changeset on AMD64. Especially for operations that touch a lot of changesets, that can easily sum up to more than a 100MB of memory. Simple tests on large repositories show <2% runtime penalty for ripping out the cache, even for cache heavy operations like "hg log" for all revisions. Differential Revision: https://phab.mercurial-scm.org/D9155

Augie Fackler - - Load All Authors

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      # narrowrepo.py - repository which supports narrow revlogs, lazy loading

      #

      # Copyright 2017 Google, Inc.

      #

      # 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 mercurial import wireprototypes

      from . import narrowdirstate

      def wraprepo(repo):

          """Enables narrow clone functionality on a single local repository."""

          class narrowrepository(repo.__class__):

              def _makedirstate(self):

                  dirstate = super(narrowrepository, self)._makedirstate()

                  return narrowdirstate.wrapdirstate(self, dirstate)

              def peer(self):

                  peer = super(narrowrepository, self).peer()

                  peer._caps.add(wireprototypes.NARROWCAP)

                  peer._caps.add(wireprototypes.ELLIPSESCAP)

                  return peer

          repo.__class__ = narrowrepository

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				# narrowrepo.py - repository which supports narrow revlogs, lazy loading
				#
				# Copyright 2017 Google, Inc.
				#
				# 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 mercurial import wireprototypes

				from . import narrowdirstate


				def wraprepo(repo):
				"""Enables narrow clone functionality on a single local repository."""

				class narrowrepository(repo.__class__):
				def _makedirstate(self):
				dirstate = super(narrowrepository, self)._makedirstate()
				return narrowdirstate.wrapdirstate(self, dirstate)

				def peer(self):
				peer = super(narrowrepository, self).peer()
				peer._caps.add(wireprototypes.NARROWCAP)
				peer._caps.add(wireprototypes.ELLIPSESCAP)
				return peer

				repo.__class__ = narrowrepository