From: "Óscar Fuentes" <ofv@wanadoo.es>
To: emacs-devel@gnu.org
Subject: Re: Progress report on git-blame
Date: Sat, 25 Jan 2014 19:52:10 +0100 [thread overview]
Message-ID: <8738kb3ndx.fsf@wanadoo.es> (raw)
In-Reply-To: 87eh3v7wiq.fsf@building.gnus.org
Lars Ingebrigtsen <larsi@gnus.org> writes:
[snip]
> So I'm usually just interested in a screenful of lines.
Same here.
> If we could have a version of `C-x v g' that only does "blame" for the
> current region, for instance, that would certainly fit my use case.
Hmmm...
$ # ran this twice, for warming the cache:
$ time git blame -- src/xdisp.c > /dev/null
real 2m48.232s
user 2m45.233s
sys 0m2.829s
$ # `blame' on 20 lines starting at line 1000:
$ time git blame -L 1000,+20 -- src/xdisp.c > /dev/null
real 0m10.861s
user 0m10.296s
sys 0m0.547s
:-)
Some random data points:
$ time git blame -L 1000,+100 -- src/xdisp.c > /dev/null
real 0m11.034s
user 0m10.417s
sys 0m0.599s
$ time git blame -L 1000,+1000 -- src/xdisp.c > /dev/null
real 0m15.089s
user 0m14.297s
sys 0m0.767s
$ time git blame -L 1000,+10000 -- src/xdisp.c > /dev/null
real 1m5.144s
user 1m3.555s
sys 0m1.502s
It seems that there is not a lot of a difference among blaming 20 lines
and blaming 1000.
AFAIK current `blame' functionality on VC (and on git-blame.el) is based
on working on the whole file, so implementing partial blame would
require significant changes on how VC renders the `blame' output.
However, the speed gain is so much that IMO it is worth using M-x
compile "git blame -L ...." on the simple scenario you described.
next prev parent reply other threads:[~2014-01-25 18:52 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-09 14:02 RFC - cleaning up /etc Eric S. Raymond
2014-01-09 14:48 ` Samuel El-Borai
2014-01-09 15:09 ` Samuel El-Borai
2014-01-09 16:57 ` Glenn Morris
2014-01-09 17:42 ` Eric S. Raymond
2014-01-09 19:50 ` Glenn Morris
2014-01-10 14:35 ` Richard Stallman
2014-01-10 15:51 ` Eric S. Raymond
2014-01-11 7:15 ` Richard Stallman
2014-01-11 10:17 ` Eric S. Raymond
2014-01-11 18:37 ` Richard Stallman
2014-01-11 10:53 ` Ulrich Mueller
2014-01-11 20:01 ` Glenn Morris
2014-01-11 20:59 ` Eric S. Raymond
2014-01-11 21:10 ` Eli Zaretskii
2014-01-11 21:27 ` Eric S. Raymond
2014-01-12 0:07 ` Lars Magne Ingebrigtsen
2014-01-12 0:20 ` Eric S. Raymond
2014-01-12 0:37 ` David Kastrup
2014-01-12 3:51 ` Eli Zaretskii
2014-01-25 1:06 ` Progress report on git-blame (was: RFC - cleaning up /etc) David Kastrup
2014-01-25 7:34 ` Eli Zaretskii
2014-01-25 8:59 ` Progress report on git-blame David Kastrup
2014-01-25 9:21 ` martin rudalics
2014-01-25 9:27 ` David Kastrup
2014-01-25 10:12 ` David Kastrup
2014-02-20 18:33 ` David Kastrup
2014-01-25 18:21 ` Lars Ingebrigtsen
2014-01-25 18:30 ` David Kastrup
2014-01-25 18:52 ` Óscar Fuentes [this message]
2014-01-25 18:59 ` David Kastrup
2014-01-25 19:31 ` Eli Zaretskii
2014-01-25 19:44 ` Óscar Fuentes
2014-01-25 20:02 ` David Kastrup
2014-01-25 21:45 ` Stefan Monnier
2014-01-26 14:40 ` Aneesh Kumar K.V
2014-01-27 14:17 ` Stefan Monnier
2014-01-25 21:48 ` Stefan Monnier
2014-01-25 23:03 ` Óscar Fuentes
2014-01-26 1:48 ` Stefan Monnier
2014-01-26 17:37 ` Eli Zaretskii
2014-01-26 19:05 ` Stefan Monnier
2014-01-26 19:40 ` Eli Zaretskii
2014-01-26 22:14 ` Stefan Monnier
2014-01-26 6:30 ` David Kastrup
2014-01-26 15:07 ` Stefan Monnier
2014-01-25 8:28 ` David Engster
2014-01-25 9:14 ` David Kastrup
2014-01-12 3:03 ` RFC - cleaning up /etc Stefan Monnier
2014-01-12 13:46 ` Richard Stallman
2014-01-12 19:17 ` Glenn Morris
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