Junio C Hamano <gitster@pobox.com> writes:

quoted text
> Linus Torvalds <torvalds@linux-foundation.org> writes:
>
>> (I didn't test it, though, maybe I missed something).
>
> I do not think the change affects the normal codepath.  The
> one-liner patch to git-commit.sh touches the codepath that
> updates the index used only to write out the partial commit, and
> losing the cached stat info from that index does not matter, as
> that index is removed immediately after writing the tree out and
> is never compared with working tree as far as I can tell.

FWIW, moe's script with and without two patches gives these
numbers for me.

      with patches                      without patches
----------------------------------------------------------------
# git init                          | # git init			       
Initialized empty Git repository in | Initialized empty Git repository in  
                                    | 				       
real    0m0.029s                    | real    0m0.004s		       
user    0m0.000s                    | user    0m0.000s		       
sys     0m0.008s                    | sys     0m0.004s		       
# git add .                         | # git add .			       
                                    | 				       
real    0m2.947s                    | real    0m3.038s		       
user    0m0.808s                    | user    0m0.876s		       
sys     0m2.120s                    | sys     0m1.996s		       
# git commit -a                     | # git commit -a		       
                                    | 				       
real    0m4.537s                    | real    0m4.674s		       
user    0m1.980s                    | user    0m1.888s		       
sys     0m2.356s                    | sys     0m2.332s		       
# git status (three times)          | # git status (three times)	       
# On branch master                  | # On branch master		       
nothing to commit (working directory| nothing to commit (working directory 
                                    | 				       
real    0m0.718s                    | real    0m17.323s		       
user    0m0.300s                    | user    0m16.913s		       
sys     0m0.416s                    | sys     0m0.396s		       
# On branch master                  | # On branch master		       
nothing to commit (working directory| nothing to commit (working directory 
                                    | 				       
real    0m0.707s                    | real    0m16.994s		       
user    0m0.312s                    | user    0m16.573s		       
sys     0m0.400s                    | sys     0m0.416s		       
# On branch master                  | # On branch master		       
nothing to commit (working directory| nothing to commit (working directory 
                                    | 				       
real    0m0.720s                    | real    0m18.042s		       
user    0m0.344s                    | user    0m17.633s		       
sys     0m0.376s                    | sys     0m0.408s		       
# git commit (one path)             | # git commit (one path)	       
Created commit 3483df5: expose the t| Created commit ced664f: expose the t 
 1 files changed, 1 insertions(+), 1|  1 files changed, 1 insertions(+), 1 
                                    | 				       
real    0m3.057s                    | real    0m38.130s		       
user    0m0.888s                    | user    0m37.458s		       
sys     0m0.712s                    | sys     0m0.616s                     
----------------------------------------------------------------

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