Mercurial > hg
changeset 46305:8b94f05ab069
persistent-nodemap: document the feature in `hg help config.format`
This is necessary before we advertise the feature more.
Differential Revision: https://phab.mercurial-scm.org/D9755
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Thu, 14 Jan 2021 00:56:27 +0100 |
| parents | 04da2ef8b106 |
| children | 7d096e5a5b90 |
| files | mercurial/helptext/config.txt tests/test-help.t |
| diffstat | 2 files changed, 19 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/helptext/config.txt Thu Jan 14 00:37:36 2021 +0100 +++ b/mercurial/helptext/config.txt Thu Jan 14 00:56:27 2021 +0100 @@ -894,6 +894,23 @@ Enabled by default. +``use-persistent-nodemap`` + Enable or disable the "persistent-nodemap" feature which improves + performance if the rust extensions are available. + + The "persistence-nodemap" persist the "node -> rev" on disk removing the + need to dynamically build that mapping for each Mercurial invocation. This + significantly reduce the startup cost of various local and server-side + operation for larger repository. + + The performance improving version of this feature is currently only + implemented in Rust, so people using a version of Mercurial compiled + without the Rust part might actually suffer some slowdown. + + Repository with this on-disk format require Mercurial version 5.4 or above. + + Disabled by default. + ``usestore`` Enable or disable the "store" repository format which improves compatibility with systems that fold case or otherwise mangle