upstream/mercurial-mirror Files · mercurial/thirdparty/attr/_config.py

nodemap: also use persistent nodemap for manifest...

nodemap: also use persistent nodemap for manifest The manifest as a different usage pattern than the changelog. First, while the lookup in changelog are not garanteed to match, the lookup in the manifest nodemap come from changelog and will exist in the manifest. In addition, looking up a manifest almost always result in unpacking a manifest an operation that rarely come cheap. Nevertheless, using a persistent nodemap provide a significant gain for some operations. For our measurementw, we use `hg cat --rev REV FILE` on the our reference mozilla-try. On this repository the persistent nodemap cache is about 29 MB in side for a total store side of 11,988 MB File with large history (file: b2g/config/gaia.json, revision: 195a1146daa0) no optimisation: 0.358s using mmap for index: 0.297s (-0.061s) persistent nodemap for changelog only: 0.275s (-0.024s) persistent nodemap for manifest too: 0.258s (-0.017s) File with small history (file: .hgignore, revision: 195a1146daa0) no optimisation: 0.377s using mmap for index: 0.296s (-0.061s) persistent nodemap for changelog only: 0.274s (-0.022s) persistent nodemap for manifest too: 0.257s (-0.017s) Same file but using a revision (8ba995b74e18) with a smaller manifest (3944829 bytes vs 10 bytes) no optimisation: 0.192s (-0.185s) using mmap for index: 0.131s (-0.061s) persistent nodemap for changelog only: 0.106s (-0.025s) persistent nodemap for manifest too: 0.087s (-0.019s) Differential Revision: https://phab.mercurial-scm.org/D8410

Siddharth Agarwal - - Load All Authors

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      from __future__ import absolute_import, division, print_function

      __all__ = ["set_run_validators", "get_run_validators"]

      _run_validators = True

      def set_run_validators(run):

          """

          Set whether or not validators are run.  By default, they are run.

          """

          if not isinstance(run, bool):

              raise TypeError("'run' must be bool.")

          global _run_validators

          _run_validators = run

      def get_run_validators():

          """

          Return whether or not validators are run.

          """

          return _run_validators

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				from __future__ import absolute_import, division, print_function


				__all__ = ["set_run_validators", "get_run_validators"]

				_run_validators = True


				def set_run_validators(run):
				"""
				Set whether or not validators are run. By default, they are run.
				"""
				if not isinstance(run, bool):
				raise TypeError("'run' must be bool.")
				global _run_validators
				_run_validators = run


				def get_run_validators():
				"""
				Return whether or not validators are run.
				"""
				return _run_validators