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

progress: avoid ui.configbool() lookup when progress bar is active...

progress: avoid ui.configbool() lookup when progress bar is active Profiling revealed that the ui.configbool('progress', 'debug') during progress bar updates was consuming a significant amount of overhead. This commit adds an attribute on progress bar instances that caches this config option. The impact on `hg perfprogress` with default options is significant: before: ! wall 4.641942 comb 4.580000 user 4.210000 sys 0.370000 (best of 3) after: ! wall 1.948626 comb 1.950000 user 1.950000 sys 0.000000 (best of 5) After this change, profiling reveals that progress.progbar.progress() is now consuming ~73% of time. This change does not improve the execution time if the progress bar is disabled. We may want a more comprehensive solution for that case, as the progress bar won't be enabled in a number of scenarios (e.g. servers and processes not attached to an interactive TTY). I also think that overhead of ~2.0s for 1M updates is a bit high. I suspect further refactoring of the progress bar can significantly reduce overhead. I don't have plans to do this, however. Differential Revision: https://phab.mercurial-scm.org/D5408

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