public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@elte.hu>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Davide Libenzi <davidel@xmailserver.org>,
	Eric Dumazet <dada1@cosmosbay.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ulrich Drepper <drepper@redhat.com>
Subject: Re: [patch 1/2] ufd v1 - unsequential O(1) fdmap core
Date: Mon, 4 Jun 2007 10:05:37 +0200	[thread overview]
Message-ID: <20070604080537.GA22898@elte.hu> (raw)
In-Reply-To: <20070603230859.5000424d.akpm@linux-foundation.org>


* Andrew Morton <akpm@linux-foundation.org> wrote:

> I must say that it's not really clear to me why this fdmap thing was 
> created.  Exactly what problem is it solving, and what properties is 
> it designed to have?
> 
> Could not a (prehaps suitably modified) IDR tree have adequately 
> provided those properties?
> 
> I'm sure it's good stuff, but the patches were presented as if we all 
> know what they're for.  But I don't.  Maybe I was asleep at the time.

i think this sums it up:

 http://www.uwsg.iu.edu/hypermail/linux/kernel/0705.3/2490.html

and some more, with a benchmark as well:

 http://linux.derkeiler.com/Mailing-Lists/Kernel/2007-05/msg13685.html

( blame Google for picking up two different lkml archives for the two
  searches i did :-)

	Ingo

  reply	other threads:[~2007-06-04  8:06 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-02 22:59 [patch 1/2] ufd v1 - unsequential O(1) fdmap core Davide Libenzi
2007-06-03 21:19 ` Eric Dumazet
2007-06-03 22:51   ` Davide Libenzi
2007-06-04  6:08     ` Andrew Morton
2007-06-04  8:05       ` Ingo Molnar [this message]
2007-06-04  8:09         ` Ingo Molnar
2007-06-04  8:34           ` Andrew Morton
2007-06-04  8:42             ` Ingo Molnar
2007-06-04  8:47               ` Andrew Morton
2007-06-04 13:05                 ` Davide Libenzi
2007-06-04 13:30                   ` Davide Libenzi
2007-06-04 16:56                   ` Andrew Morton
2007-06-04 17:57                     ` Davide Libenzi
2007-06-04 10:28             ` Eric Dumazet
2007-06-04 12:55               ` Davide Libenzi
2007-06-04 13:25                 ` Eric Dumazet
2007-06-04 13:33                   ` Davide Libenzi
2007-06-04 13:35                   ` Davide Libenzi
2007-06-04 14:28                     ` Eric Dumazet
2007-06-04 14:53                       ` Davide Libenzi
2007-06-04 14:12                   ` Ingo Molnar
2007-06-04 14:27                     ` Eric Dumazet
2007-06-05 20:37                       ` Ingo Molnar
2007-06-05 20:50                         ` Thomas Gleixner
2007-06-05 20:57                         ` Eric Dumazet
2007-06-05 22:29                         ` Eric Dumazet

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20070604080537.GA22898@elte.hu \
    --to=mingo@elte.hu \
    --cc=akpm@linux-foundation.org \
    --cc=dada1@cosmosbay.com \
    --cc=davidel@xmailserver.org \
    --cc=drepper@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox