From: Linus Torvalds <torvalds@osdl.org>
To: Martin Langhoff <martin.langhoff@gmail.com>
Cc: Ray Lehtiniemi <rayl@mail.com>, Alex Riesen <raa.lkml@gmail.com>,
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>,
Keith Packard <keithp@keithp.com>,
Junio C Hamano <junkio@cox.net>,
cworth@cworth.org, Git Mailing List <git@vger.kernel.org>
Subject: Re: [Census] So who uses git?
Date: Tue, 31 Jan 2006 19:48:37 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0601311943290.7301@g5.osdl.org> (raw)
In-Reply-To: <46a038f90601311852ie8cfac0rbe92779edea4da1b@mail.gmail.com>
On Wed, 1 Feb 2006, Martin Langhoff wrote:
>
> If you have such a tree, your workflow _must_ be such that you know
> exactly what files you have changed. Asking any tool to go out and
> "find which of my 20K files has changed" is doable, but it's just
> magic that it works on recent linuxes.
It's not magic, and it's not all that recent. Linux FS ops have always
been pretty good, and the dentry cache was introduced in 2.0.x, I think,
so you'd be hard-pressed to find a Linux system that doesn't have it.
Now, I bet Linux will be better (often by a factor of 2-3) than most other
systems, but that still doesn't mean that 20k files is totally
unreasonable on other setups.
I suspect cygwin is worse than most because (a) the NT VFS layer is
piss-poor and you need a kernel service to get good performance and (b)
cygwin probably adds its own overhead for handling symlinks, so the
"lstat()" call is probably even more expensive.
Now, the networked filesystems are a potential problem for everybody.
Linus
next prev parent reply other threads:[~2006-02-01 3:58 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-26 2:10 LCA06 Cogito/GIT workshop - (Re: git-whatchanged: exit out early on errors) Martin Langhoff
2006-01-28 4:47 ` Linus Torvalds
2006-01-28 5:33 ` Martin Langhoff
2006-01-28 5:53 ` Linus Torvalds
2006-01-28 6:32 ` Junio C Hamano
2006-01-29 10:12 ` Fredrik Kuivinen
2006-01-29 20:15 ` Junio C Hamano
2006-01-28 11:00 ` Keith Packard
2006-01-28 21:08 ` [Census] So who uses git? Junio C Hamano
2006-01-29 2:14 ` Morten Welinder
2006-01-29 3:53 ` Junio C Hamano
2006-01-29 14:19 ` Morten Welinder
2006-01-29 20:15 ` Junio C Hamano
2006-01-29 10:09 ` Keith Packard
2006-01-29 11:18 ` Radoslaw Szkodzinski
2006-01-29 18:12 ` Greg KH
2006-01-31 18:33 ` Radoslaw Szkodzinski
2006-01-31 19:50 ` Radoslaw Szkodzinski
2006-01-31 20:43 ` Junio C Hamano
2006-01-31 21:02 ` Radoslaw Szkodzinski
2006-01-30 22:51 ` Alex Riesen
2006-01-31 21:25 ` Linus Torvalds
2006-01-31 21:52 ` J. Bruce Fields
2006-01-31 22:01 ` Alex Riesen
[not found] ` <20060201013901.GA16832@mail.com>
2006-02-01 2:04 ` Linus Torvalds
2006-02-01 2:09 ` Linus Torvalds
2006-02-09 5:15 ` [PATCH] "Assume unchanged" git Junio C Hamano
2006-02-09 5:49 ` [PATCH] "Assume unchanged" git: do not set CE_VALID with --refresh Junio C Hamano
2006-02-09 5:50 ` [PATCH] ls-files: debugging aid for CE_VALID changes Junio C Hamano
2006-02-01 2:31 ` [Census] So who uses git? Junio C Hamano
2006-02-01 3:43 ` Linus Torvalds
2006-02-01 7:03 ` Junio C Hamano
[not found] ` <20060201045337.GC25753@mail.com>
2006-02-01 5:04 ` Linus Torvalds
2006-02-01 5:42 ` Junio C Hamano
2006-02-01 16:15 ` Jason Riedy
2006-02-01 19:20 ` Julian Phillips
2006-02-01 19:29 ` Linus Torvalds
2006-02-06 21:15 ` Chuck Lever
2006-02-01 2:52 ` Martin Langhoff
2006-02-01 3:48 ` Linus Torvalds [this message]
2006-02-01 19:30 ` H. Peter Anvin
2006-02-01 14:55 ` Alex Riesen
2006-02-01 16:25 ` Linus Torvalds
2006-02-02 9:12 ` Alex Riesen
2006-01-29 18:37 ` Dave Jones
2006-01-29 20:17 ` Daniel Barkalow
2006-01-29 20:29 ` Martin Langhoff
2006-01-30 15:23 ` Mike McCormack
2006-01-30 18:58 ` Carl Baldwin
2006-01-31 10:27 ` Johannes Schindelin
2006-01-31 15:24 ` Carl Baldwin
2006-01-31 15:31 ` Johannes Schindelin
2006-01-31 17:30 ` Linus Torvalds
2006-01-31 18:12 ` J. Bruce Fields
2006-01-31 19:33 ` Junio C Hamano
2006-01-31 19:44 ` Jon Loeliger
2006-01-31 19:52 ` Junio C Hamano
[not found] ` <7vd5i8w2nc.fsf@assigned-by-dhcp.cox.net>
2006-01-31 20:56 ` J. Bruce Fields
2006-01-31 20:06 ` J. Bruce Fields
2006-01-31 19:01 ` Keith Packard
2006-01-31 19:21 ` Linus Torvalds
2006-01-31 22:55 ` Joel Becker
2006-02-01 14:43 ` Johannes Schindelin
2006-01-31 20:56 ` Sam Ravnborg
2006-01-31 22:21 ` Junio C Hamano
2006-02-01 19:34 ` H. Peter Anvin
2006-01-31 23:16 ` Daniel Barkalow
2006-01-31 23:36 ` Petr Baudis
2006-01-31 23:47 ` Junio C Hamano
2006-02-01 0:38 ` Linus Torvalds
2006-02-01 0:52 ` Junio C Hamano
2006-02-01 2:19 ` Daniel Barkalow
2006-02-01 6:42 ` Junio C Hamano
2006-02-01 7:22 ` Carl Worth
2006-02-01 8:26 ` Junio C Hamano
2006-02-01 9:59 ` Randal L. Schwartz
2006-02-01 20:48 ` Junio C Hamano
2006-02-01 17:11 ` Linus Torvalds
2006-02-01 17:18 ` Nicolas Pitre
2006-02-01 20:27 ` Junio C Hamano
2006-02-01 21:09 ` Linus Torvalds
2006-02-01 21:34 ` Nicolas Pitre
2006-02-01 21:59 ` Junio C Hamano
2006-02-01 22:25 ` Nicolas Pitre
2006-02-01 22:50 ` Junio C Hamano
2006-02-02 14:59 ` Andreas Ericsson
2006-02-01 22:35 ` Linus Torvalds
2006-02-01 23:33 ` Two ideas for improving git's user interface Carl Worth
2006-02-02 0:38 ` Junio C Hamano
2006-02-02 1:16 ` Carl Worth
2006-02-02 2:25 ` Junio C Hamano
2006-02-03 23:57 ` Carl Worth
2006-02-02 1:23 ` Linus Torvalds
2006-02-02 1:44 ` Linus Torvalds
2006-02-04 8:03 ` Alan Chandler
2006-02-04 8:25 ` Junio C Hamano
2006-02-04 9:30 ` Alan Chandler
2006-02-04 0:20 ` Carl Worth
2006-02-04 2:08 ` Linus Torvalds
2006-02-06 23:42 ` Carl Worth
2006-02-02 12:31 ` Florian Weimer
2006-02-02 16:30 ` Carl Baldwin
2006-02-01 22:57 ` [Census] So who uses git? Daniel Barkalow
2006-02-01 22:00 ` Joel Becker
2006-02-01 19:32 ` H. Peter Anvin
-- strict thread matches above, loose matches on Subject: below --
2006-02-01 7:08 linux
2006-02-01 8:51 ` Junio C Hamano
2006-02-01 16:04 ` Linus Torvalds
2006-02-01 16:10 ` Alex Riesen
2006-02-01 21:27 ` linux
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