From: Stefan Beller <sbeller@google.com>
Date: Fri, 29 Jun 2018 20:51:21 GMT
Subject: Re: fast-import slowness when importing large files with small differences
Message-ID: <CAGZ79kYSFnKhMPi3J=C-XHMuAg90J76Vir6ocv0uKWoKts4P-w@mail.gmail.com>
In-Reply-To: <20180629203904.GA27566@sigill.intra.peff.net>

+cc Jun Wu, original author of these patches

On Fri, Jun 29, 2018 at 1:39 PM Jeff King <peff@peff.net> wrote:

> > Interesting pieces regarding performance:
> >
> > c420792217c8 xdiff: reduce indent heuristic overhead
> > https://phab.mercurial-scm.org/rHGc420792217c89622482005c99e959b9071c109c5

Going by the mailing list, the first patch was not brought over yet,
so sending it here was warranted.

Jun, you may want to take ownership of
https://public-inbox.org/git/20180629202811.131265-1-sbeller@google.com/
as I merely resend it to the git mailing list?
If not, that is fine, too.

> >
> > f33a87cf60cc xdiff: add a preprocessing step that trims files
> > https://phab.mercurial-scm.org/rHGf33a87cf60ccb8b46e06b85e60bc5031420707d6
> >
> > I'll see if I can make that into patches.
>
> Apparently the second one is not so trivial as you might hope; see
> https://public-inbox.org/git/1520337165-sup-4504@x1c/.

Thanks so much, this saves me further effort to dig there.
So I'll just stop porting this.

Thanks,
Stefan