Add cache preload facility
authorLinus Torvalds <torvalds@linux-foundation.org>
Fri, 14 Nov 2008 00:36:30 +0000 (16:36 -0800)
committerJunio C Hamano <gitster@pobox.com>
Sat, 15 Nov 2008 03:11:49 +0000 (19:11 -0800)
commit671c9b7e315db89081cc69f83a8f405e4aca37bc
tree0410fb1af855fc65a7d96dd15410db16e41cbc9f
parenta0d3ab9c277f1a198ec8e29432c0127d4cf719d2
Add cache preload facility

This can do the lstat() storm in parallel, giving potentially much
improved performance for cold-cache cases or things like NFS that have
weak metadata caching.

Just use "read_cache_preload()" instead of "read_cache()" to force an
optimistic preload of the index stat data.  The function takes a
pathspec as its argument, allowing us to preload only the relevant
portion of the index.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/config.txt
Makefile
builtin-commit.c
builtin-diff-files.c
builtin-diff.c
cache.h
config.c
environment.c
preload-index.c [new file with mode: 0644]