From 7349afd20e3b0ce3da6f192f593390472acec9d3 Mon Sep 17 00:00:00 2001 From: Karsten Blees Date: Tue, 30 Oct 2012 10:50:42 +0100 Subject: [PATCH] update-index/diff-index: use core.preloadindex to improve performance 'update-index --refresh' and 'diff-index' (without --cached) don't honor the core.preloadindex setting yet. Porcelain commands using these (such as git [svn] rebase) suffer from this, especially on Windows. Use read_cache_preload to improve performance. Additionally, in builtin/diff.c, don't preload index status if we don't access the working copy (--cached). Results with msysgit on WebKit repo (2GB in 200k files): | update-index | diff-index | rebase ----------------+--------------+------------+--------- msysgit-v1.8.0 | 9.157s | 10.536s | 42.791s + preloadindex | 9.157s | 10.536s | 28.725s + this patch | 2.329s | 2.752s | 15.152s + fscache [1] | 0.731s | 1.171s | 8.877s [1] https://github.com/kblees/git/tree/kb/fscache-v3 Thanks-to: Albert Krawczyk Signed-off-by: Karsten Blees Signed-off-by: Jeff King --- builtin/diff-index.c | 8 ++++++-- builtin/diff.c | 12 ++++++++---- builtin/update-index.c | 1 + 3 files changed, 15 insertions(+), 6 deletions(-) diff --git a/builtin/diff-index.c b/builtin/diff-index.c index 2eb32bd9da..1c737f7921 100644 --- a/builtin/diff-index.c +++ b/builtin/diff-index.c @@ -41,9 +41,13 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix) if (rev.pending.nr != 1 || rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1) usage(diff_cache_usage); - if (!cached) + if (!cached) { setup_work_tree(); - if (read_cache() < 0) { + if (read_cache_preload(rev.diffopt.pathspec.raw) < 0) { + perror("read_cache_preload"); + return -1; + } + } else if (read_cache() < 0) { perror("read_cache"); return -1; } diff --git a/builtin/diff.c b/builtin/diff.c index 9650be2c50..198b9216a4 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -130,8 +130,6 @@ static int builtin_diff_index(struct rev_info *revs, usage(builtin_diff_usage); argv++; argc--; } - if (!cached) - setup_work_tree(); /* * Make sure there is one revision (i.e. pending object), * and there is no revision filtering parameters. @@ -140,8 +138,14 @@ static int builtin_diff_index(struct rev_info *revs, revs->max_count != -1 || revs->min_age != -1 || revs->max_age != -1) usage(builtin_diff_usage); - if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) { - perror("read_cache_preload"); + if (!cached) { + setup_work_tree(); + if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) { + perror("read_cache_preload"); + return -1; + } + } else if (read_cache() < 0) { + perror("read_cache"); return -1; } return run_diff_index(revs, cached); diff --git a/builtin/update-index.c b/builtin/update-index.c index 4ce341ceeb..dd8d10b3d5 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -593,6 +593,7 @@ struct refresh_params { static int refresh(struct refresh_params *o, unsigned int flag) { setup_work_tree(); + read_cache_preload(NULL); *o->has_errors |= refresh_cache(o->flags | flag); return 0; }