From: Duy Nguyen Date: Thu, 02 Mar 2017 06:10:23 GMT Subject: Re: [PATCH] Put sha1dc on a diet Message-ID: In-Reply-To: <20170301231921.2puf7o7jkrujscwn@sigill.intra.peff.net> On Thu, Mar 2, 2017 at 6:19 AM, Jeff King wrote: > You have to remember that some of the Git for Windows users are doing > horrific things like using repositories with 450MB .git/index files, and > the speed to compute the sha1 during an update is noticeable there. We probably should separate this use case from the object hashing anyway. Here we need a better, more reliable crc32 basically, to detect bit flips. Even if we move to SHA-something, we can keep staying with SHA-1 here (and with the fastest implementation) -- Duy