Re: A project-files implementation for Git projects

[Dmitry Gutov]

On 04.10.2019 11:49, Tassilo Horn wrote:
> Tassilo Horn <address@hidden> writes:
>
> > > I wish someone did some benchmarking with Hg projects.
> > > mozilla-central (~200000 files) is still slower on my machine with Hg
> > > than with 'find'.
> >
> > I'll do.
>
> On my machine, the Hg version is much faster than find:
>
> Files: 283417 (VC) vs. 283497 (find)
> VC) Elapsed time: 4.714386s (0.782360s in 12 GCs)
> Find) Elapsed time: 18.569516s (0.393230s in 5 GCs)
>
> I downloaded an archive of mozilla-central and performed "hg init && hg
> add * && hg commit -m foo" myself.  The hg status --all call on a
> terminal takes about 2.8 seconds itself.
>
> My hg version is 5.1.

That's great. My Hg version is 4.8.2, but maybe they had done some 
performance optimization in the new release. I have a "proper" Hg 
checkout, though, with full history. Maybe that also has an effect.

In any case, I just pushed an optimized implementation for Hg. Please 
try it out as well when you have time. On my machine it's ~equal with 
'find' based implementation now (roughly 7 seconds).

(project--files-in-directory default-directory nil) completes in 2.6s, 
though.