Merge branch 'js/reflog'

[git.git] / Documentation / config.txt

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 4318bf9334d22541b741b4be3fe0315f0e1480e9..b4aae0d0aeba86e995b37a5fe3ab7ec61e268687 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -118,6 +118,34 @@ core.legacyheaders::
        database directly (where the "http://" and "rsync://" protocols
        count as direct access).
 
+core.packedGitWindowSize::
+       Number of bytes of a pack file to map into memory in a
+       single mapping operation.  Larger window sizes may allow
+       your system to process a smaller number of large pack files
+       more quickly.  Smaller window sizes will negatively affect
+       performance due to increased calls to the operating system's
+       memory manager, but may improve performance when accessing
+       a large number of large pack files.
++
+Default is 1 MiB if NO_MMAP was set at compile time, otherwise 32
+MiB on 32 bit platforms and 1 GiB on 64 bit platforms.  This should
+be reasonable for all users/operating systems.  You probably do
+not need to adjust this value.
++
+Common unit suffixes of 'k', 'm', or 'g' are supported.
+
+core.packedGitLimit::
+       Maximum number of bytes to map simultaneously into memory
+       from pack files.  If Git needs to access more than this many
+       bytes at once to complete an operation it will unmap existing
+       regions to reclaim virtual address space within the process.
++
+Default is 256 MiB on 32 bit platforms and 8 GiB on 64 bit platforms.
+This should be reasonable for all users/operating systems, except on
+the largest projects.  You probably do not need to adjust this value.
++
+Common unit suffixes of 'k', 'm', or 'g' are supported.
+
 alias.*::
        Command aliases for the gitlink:git[1] command wrapper - e.g.
        after defining "alias.last = cat-file commit HEAD", the invocation