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Re: [PATCH] Use OBJECT_INFO_QUICK to speedup git fetch-pack




On Mon, Nov 27, 2017 at 01:35:35PM +0900, Junio C Hamano wrote:

> Takuto Ikuta <tikuta@xxxxxxxxxx> writes:
> 
> > diff --git a/fetch-pack.c b/fetch-pack.c
> > index 008b25d3db087..0184584e80599 100644
> > --- a/fetch-pack.c
> > +++ b/fetch-pack.c
> > @@ -716,7 +716,7 @@ static int everything_local(struct fetch_pack_args *args,
> >  	for (ref = *refs; ref; ref = ref->next) {
> >  		struct object *o;
> >  
> > -		if (!has_object_file(&ref->old_oid))
> > +		if (!has_object_file_with_flags(&ref->old_oid, OBJECT_INFO_QUICK))
> >  			continue;
> >  
> 
> It appears that great minds think alike?
> 
> cf. https://public-inbox.org/git/20171120202920.7ppcwmzkxifywtoj@xxxxxxxxxxxxxxxxxxxxx/

It's funny that we'd get two patches so close together. AFAIK the
slowness here has been with us for years, and I just happened to
investigate it recently.

> The 5-patch series that contains the same change as this one is
> cooking and will hopefully be in the released version before the end
> of the year.

I'd be curious if the 5th patch there provides an additional speedup for
Takuto's case.

-Peff