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.
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