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From: Junio C Hamano <junkio@cox.net>
To: Linus Torvalds <torvalds@osdl.org>
Cc: git@vger.kernel.org
Subject: Re: [PATCH/RFC 2/2] Make path-limiting be incremental when possible.
Date: Fri, 31 Mar 2006 00:28:58 -0800	[thread overview]
Message-ID: <7v1wwjvwz9.fsf@assigned-by-dhcp.cox.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0603301652531.27203@g5.osdl.org> (Linus Torvalds's message of "Thu, 30 Mar 2006 17:05:25 -0800 (PST)")

Linus Torvalds <torvalds@osdl.org> writes:

> This is an absolutely huge deal for anything like "git log -- <pathname>", 
> but also for some things that we don't do yet - like the "find where 
> things changed" logic I've described elsewhere, where we want to find the 
> previous revision that changed a file.
>...
> Btw, don't even bother testing this with the git archive. git itself is so 
> small that parsing the whole revision history for it takes about a second 
> even with path limiting.

By the way, I forgot to praise you ;-).  

Even on a fast machine, the old one was not very useful, but
this one is _instantaneous_.  Very good job.

$ PAGER=cat GIT_DIR=/pub/scm/linux/kernel/git/torvalds/linux-2.6.git/ \
  /usr/bin/time git log -1 --pretty=short -- drivers/
commit ce362c009250340358a7221f3cdb7954cbf19c01
Merge: 064c94f... cd7a920...
Author: Linus Torvalds <torvalds@g5.osdl.org>

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6

15.44user 0.19system 0:25.11elapsed 62%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+18050minor)pagefaults 0swaps

$ PAGER=cat GIT_DIR=/pub/scm/linux/kernel/git/torvalds/linux-2.6.git/ \
  /usr/bin/time ./git.pu log -1 --pretty=short -- drivers/
commit ce362c009250340358a7221f3cdb7954cbf19c01
Merge: 064c94f... cd7a920...
Author: Linus Torvalds <torvalds@g5.osdl.org>

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6

0.00user 0.00system 0:00.00elapsed 50%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+388minor)pagefaults 0swaps

  parent reply	other threads:[~2006-03-31  8:29 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-31  0:52 [PATCH/RFC 1/2] Move "--parent" parsing into generic revision.c library code Linus Torvalds
2006-03-31  1:05 ` [PATCH/RFC 2/2] Make path-limiting be incremental when possible Linus Torvalds
2006-03-31  6:05   ` Linus Torvalds
2006-03-31  6:45     ` Junio C Hamano
2006-03-31 19:39       ` Linus Torvalds
2006-03-31 20:35         ` Junio C Hamano
2006-03-31 20:50           ` Linus Torvalds
2006-03-31  6:16   ` Junio C Hamano
2006-03-31  6:42     ` Linus Torvalds
2006-03-31  7:02       ` Junio C Hamano
2006-04-02  0:35         ` Linus Torvalds
2006-04-02  3:11           ` Junio C Hamano
2006-04-02  3:17           ` [PATCH] revision: simplify argument parsing Junio C Hamano
     [not found]             ` <443063E2.1040904@lsrfire.ath.cx>
2006-04-03  4:22               ` Junio C Hamano
2006-04-02  3:17           ` [PATCH] revision: --max-age alone does not need limit_list() anymore Junio C Hamano
2006-03-31  8:28   ` Junio C Hamano [this message]
2006-03-31 19:44     ` [PATCH/RFC 2/2] Make path-limiting be incremental when possible Linus Torvalds

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