Merge branch 'maint'

[git.git] / Documentation / git-pack-objects.txt

diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt
index 6f17cff24ab784ee68767724dff6892b67b3ad53..5237ab0c046cb3b8468166684b04c9ef8d50e588 100644 (file)
--- a/Documentation/git-pack-objects.txt
+++ b/Documentation/git-pack-objects.txt
@@ -25,16 +25,16 @@ is efficient to access.  The packed archive format (.pack) is
 designed to be unpackable without having anything else, but for
 random access, accompanied with the pack index file (.idx).
 
+Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
+any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
+enables git to read from such an archive.
+
 'git-unpack-objects' command can read the packed archive and
 expand the objects contained in the pack into "one-file
 one-object" format; this is typically done by the smart-pull
 commands when a pack is created on-the-fly for efficient network
 transport by their peers.
 
-Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
-any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
-enables git to read from such an archive.
-
 In a packed archive, an object is either stored as a compressed
 whole, or as a difference from some other object.  The latter is
 often called a delta.
@@ -155,12 +155,8 @@ base-name::
        generated pack.  If not specified,  pack compression level is
        determined first by pack.compression,  then by core.compression,
        and defaults to -1,  the zlib default,  if neither is set.
-       Data copied from loose objects will be recompressed
-       if core.legacyheaders was true when they were created or if
-       the loose compression level (see core.loosecompression and
-       core.compression) is now a different value than the pack
-       compression level.  Add --no-reuse-object if you want to force
-       a uniform compression level on all data no matter the source.
+       Add \--no-reuse-object if you want to force a uniform compression
+       level on all data no matter the source.
 
 --delta-base-offset::
        A packed archive can express base object of a delta as
@@ -173,6 +169,14 @@ base-name::
        length, this option typically shrinks the resulting
        packfile by 3-5 per-cent.
 
+--threads=<n>::
+       Specifies the number of threads to spawn when searching for best
+       delta matches.  This requires that pack-objects be compiled with
+       pthreads otherwise this option is ignored with a warning.
+       This is meant to reduce packing time on multiprocessor machines.
+       The required amount of memory for the delta search window is
+       however multiplied by the number of threads.
+
 --index-version=<version>[,<offset>]::
        This is intended to be used by the test suite only. It allows
        to force the version for the generated pack index, and to force