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| author | Jeff Hostetler <jeffhost@microsoft.com> | 2017-04-14 19:51:52 +0000 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-04-15 02:04:41 -0700 |
| commit | 950a234cbd781021d69fcfaa40ab6fd258b1d917 (patch) | |
| tree | dcb1101fb59ad382f5c1a14b41bd2f457aeeac00 /mergesort.c | |
| parent | 3b9e3c2cede15057af3ff8076c45ad5f33829436 (diff) | |
| download | git-950a234cbd781021d69fcfaa40ab6fd258b1d917.tar.gz git-950a234cbd781021d69fcfaa40ab6fd258b1d917.tar.xz | |
string-list: use ALLOC_GROW macro when reallocing string_list
Use ALLOC_GROW() macro when reallocing a string_list array
rather than simply increasing it by 32. This is a performance
optimization.
During status on a very large repo and there are many changes,
a significant percentage of the total run time is spent
reallocing the wt_status.changes array.
This change decreases the time in wt_status_collect_changes_worktree()
from 125 seconds to 45 seconds on my very large repository.
This produced a modest gain on my 1M file artificial repo, but
broke even on linux.git.
Test HEAD^^ HEAD
---------------------------------------------------------------------------------------
0005.2: read-tree status br_ballast (1000001) 8.29(5.62+2.62) 8.22(5.57+2.63) -0.8%
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'mergesort.c')
0 files changed, 0 insertions, 0 deletions