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changeset 46307:51da7c8ef357

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persistent-nodemap: document storage.revlog.persistent-nodemap.mmap=no The feature is gaining public facing document, its options too. Differential Revision: https://phab.mercurial-scm.org/D9757
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Thu, 14 Jan 2021 01:12:42 +0100
parents 7d096e5a5b90
children 05a1e44b2224
files mercurial/helptext/config.txt
diffstat 1 files changed, 10 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/helptext/config.txt	Wed Jan 13 23:51:12 2021 +0100
+++ b/mercurial/helptext/config.txt	Thu Jan 14 01:12:42 2021 +0100
@@ -1943,6 +1943,16 @@
     Turning this option off can result in large increase of repository size for
     repository with many merges.
 
+``revlog.persistent-nodemap.mmap``
+    Whether to use the Operating System "memory mapping" feature (when
+    possible) to access the persistent nodemap data. This improve performance
+    and reduce memory pressure.
+
+    Default to True.
+
+    For details on the "persistent-nodemap" feature, see:
+    :hg:`help config format.use-persistent-nodemap`.
+
 ``revlog.reuse-external-delta-parent``
     Control the order in which delta parents are considered when adding new
     revisions from an external source.