Re: [RFC PATCH] index-pack: improve performance on NFS

On Fri, Nov 09, 2018 at 02:43:52PM +0100, Ævar Arnfjörð Bjarmason wrote:

As noted in
https://public-inbox.org/git/87bm7clf4o.fsf@evledraar.gmail.com/ and
https://public-inbox.org/git/87h8gq5zmc.fsf@evledraar.gmail.com/ I think
it's regardless of Jeff's optimization is. O(nothing) is always faster
than O(something), particularly (as explained in that E-Mail) on NFS.

You didn't answer my question in
https://public-inbox.org/git/20181030024925.GC8325@amazon.com/ about
whether for your purposes you're interested in this for something where
it needs to work out of the box on some random Amazon's customer's
"git", or if it's something in-house and you just don't want to turn off
collision checking. That would be useful to know.

The reason I started this thread is to optimize performance for AWS customers
that run git on EFS. Therefore, my preference is that git would be fast out of
the box on NFS/EFS but without having to disable collision checking
unconditionally (disabling it for empty repos is fine as that's a no-op
anyway).