From: David Kastrup <dak@gnu•org>
To: Shawn Pearce <spearce@spearce•org>
Cc: git <git@vger•kernel.org>
Subject: Re: [PATCH 1/2] blame: large-scale performance rewrite
Date: Sat, 26 Apr 2014 19:22:38 +0200 [thread overview]
Message-ID: <878uqs80pt.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <CAJo=hJsrFb+FdBDoHiYOPeB0nEQhD+9dBXTK84bDSj1MgBBdQA@mail.gmail.com> (Shawn Pearce's message of "Sat, 26 Apr 2014 10:09:00 -0700")
Shawn Pearce <spearce@spearce•org> writes:
> Right, and JGit blame still is missing the -M and -C options, as I
> have not implemented those yet. I got basic blame and reverse blame
> working a few years ago and then stopped working on the code for a
> while. Now we have interest in improving the latency for $DAY_JOB, so
> I've been poking at the code again for the last week or so.
>
> But that -M and -C thing is still not implemented, and I know its
> going to be tricky to get right with the way the scapegoating is
> passed along.
Actually, for -M/-C it would be saner to rip open the whole xdiff
blackbox which internally goes to quite some effort in order to produce
the linear ordering of a diff, and then -M has to simulate dropping that
linear ordering requirement by doing a host of parallel diffs for each
chunk.
--
David Kastrup
next prev parent reply other threads:[~2014-04-26 17:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-25 23:56 [PATCH 1/2] blame: large-scale performance rewrite David Kastrup
2014-04-25 23:56 ` [PATCH 2/2] Mention "git blame" improvements in release notes David Kastrup
2014-04-26 17:28 ` Junio C Hamano
2014-04-26 18:28 ` David Kastrup
[not found] ` <xmqqzjj5s8hs.fsf@gitster.dls.corp.google.com>
2014-04-28 17:39 ` David Kastrup
2014-04-28 19:35 ` Junio C Hamano
2014-04-28 19:57 ` David Kastrup
2014-04-28 20:05 ` Ronnie Sahlberg
2014-04-28 20:26 ` David Kastrup
2014-04-26 0:53 ` [PATCH 1/2] blame: large-scale performance rewrite Shawn Pearce
2014-04-26 7:48 ` David Kastrup
2014-04-26 16:01 ` Shawn Pearce
2014-04-26 16:50 ` David Kastrup
2014-04-26 17:09 ` Shawn Pearce
2014-04-26 17:22 ` David Kastrup [this message]
2014-04-26 17:02 ` David Kastrup
2014-04-26 17:30 ` David Kastrup
2014-04-26 17:56 ` Shawn Pearce
2014-04-26 21:39 ` David Kastrup
2014-04-27 17:53 ` Shawn Pearce
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