Re: hosting git on a nfs

[Junio C Hamano <gitster@pobox.com>]

Linus Torvalds <torvalds@linux-foundation.org> writes:

> I also think the thread cost was wrong: it did
>
> 	threads = index->cache_nr / 100;
>
> to give a first-order "how many threads do we want", but the thread 
> startup is likely to be higher than 100 lstat calls, so we probably want 
> fewer threads than that. It doesn't much matter for something like the 
> Linux kernel, where there are so many files that we'll end up maxing out 
> the threads anyway, but for smaller projects, I suspect a thread cost of 
> "one thread per 500 files" is more reasonable. You almost certainly don't 
> want to thread anything at all for fewer than a few hundred files.

If you have 1000 files in a single directory, do you still want 2 threads
following the "1/500" rule, or they would compete reading the same
directory and using a single thread is better off?