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From: Dmitry Potapov <dpotapov@gmail.com>
To: Marko Kreen <markokr@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andreas Ericsson <ae@op5.se>,
	Git Mailing List <git@vger.kernel.org>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: I'm a total push-over..
Date: Sun, 27 Jan 2008 18:06:02 +0300	[thread overview]
Message-ID: <20080127150602.GK26664@dpotapov.dyndns.org> (raw)
In-Reply-To: <e51f66da0801270145w41a94414g7bebd4a31293344d@mail.gmail.com>

On Sun, Jan 27, 2008 at 11:45:25AM +0200, Marko Kreen wrote:

> The minus:
> - some memory i/o overhead which may or may not matter

If a string is short, it will probably reside in the processor cache, so
there is no real memory i/o overhead here. For more longer strings, it
may be better to do that in short chunks, so each chunk can reside in
the cache. But I don't think filenames are long, so it is not an issue
here.

> - the parts would not be fully generic, but special to hashing

I think the second part can be rather generic to be reused for hashing
something else that does not require filename specific case-folding.

Dmitry

  reply	other threads:[~2008-01-27 15:06 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-22 23:37 I'm a total push-over Linus Torvalds
2008-01-23  1:35 ` Kevin Ballard
2008-01-23  2:23 ` Junio C Hamano
2008-01-23  2:36   ` Junio C Hamano
2008-01-23 12:24     ` Johannes Schindelin
2008-01-23 12:28       ` David Kastrup
2008-01-23 12:56         ` Theodore Tso
2008-01-23  2:58   ` Linus Torvalds
2008-01-23  3:19     ` Linus Torvalds
2008-01-25  6:50       ` Junio C Hamano
2008-01-25 16:24         ` Linus Torvalds
2008-01-23  7:23     ` Junio C Hamano
2008-01-23 12:25       ` Johannes Schindelin
2008-01-23 16:25         ` Linus Torvalds
2008-01-23 16:34           ` Johannes Schindelin
2008-01-23 17:09             ` Linus Torvalds
2008-01-23 17:29               ` Linus Torvalds
2008-01-25  5:21                 ` Jeremy Maitin-Shepard
2008-01-25 12:51                   ` Johannes Schindelin
2008-01-25 18:19                     ` Jeremy Maitin-Shepard
2008-01-25 18:24                       ` Johannes Schindelin
2008-01-25 19:07                       ` Junio C Hamano
2008-01-23  8:32 ` Andreas Ericsson
2008-01-23  9:15   ` Dmitry Potapov
2008-01-23  9:31     ` Andreas Ericsson
2008-01-23 14:01       ` Marko Kreen
2008-01-23 14:39         ` Andreas Ericsson
2008-01-24  6:51           ` Luke Lu
2008-01-24 10:24             ` Andreas Ericsson
2008-01-24 13:19           ` Marko Kreen
2008-01-24 16:00             ` Andreas Ericsson
2008-01-24 16:13               ` Marko Kreen
2008-01-24 16:28               ` Dmitry Potapov
2008-01-24 17:15                 ` Linus Torvalds
2008-01-24 18:45                   ` Dmitry Potapov
2008-01-24 19:08                     ` Linus Torvalds
2008-01-25 20:52                   ` Marko Kreen
2008-01-25 22:16                     ` Linus Torvalds
2008-01-25 22:35                       ` Linus Torvalds
2008-01-26 12:16                       ` Marko Kreen
2008-01-27  6:51                         ` Linus Torvalds
2008-01-27  8:21                           ` Dmitry Potapov
2008-01-27 14:07                             ` Johannes Schindelin
2008-01-27 14:48                               ` Dmitry Potapov
2008-01-27  9:45                           ` Marko Kreen
2008-01-27 15:06                             ` Dmitry Potapov [this message]
2008-01-26 12:37                       ` Marko Kreen
2008-01-25 20:08               ` Marko Kreen
2008-01-23 17:10       ` Dmitry Potapov
2008-01-24 10:39         ` Andreas Ericsson
2008-01-23 16:06   ` Linus Torvalds

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