From: Andrew Morton <akpm@osdl.org>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: sonnyrao@us.ibm.com, James.Bottomley@SteelEye.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] make radix tree gang lookup faster by using a bitmap search
Date: Mon, 29 Aug 2005 18:54:06 -0700 [thread overview]
Message-ID: <20050829185406.199e3aed.akpm@osdl.org> (raw)
In-Reply-To: <4313AEC9.3050406@yahoo.com.au>
Nick Piggin <nickpiggin@yahoo.com.au> wrote:
>
> But of course gang lookup is only useful if a single read() call
> asks for more than 1 page - is that a performance critical path?
readahead should do gang lookups (or, preferably, find-next, when it's
implemented). But nobody got around to it.
next prev parent reply other threads:[~2005-08-30 1:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-27 16:26 James Bottomley
2005-08-27 17:53 ` Andrew Morton
2005-08-28 19:43 ` James Bottomley
2005-08-28 20:00 ` Linus Torvalds
2005-08-28 20:39 ` Andrew Morton
2005-08-29 0:45 ` James Bottomley
2005-08-29 0:52 ` Andrew Morton
2005-08-29 1:19 ` James Bottomley
2005-08-29 1:35 ` Andrew Morton
2005-08-29 3:26 ` James Bottomley
2005-08-29 3:37 ` Nick Piggin
2005-08-29 3:54 ` Trond Myklebust
2005-08-29 13:16 ` Luben Tuikov
2005-08-29 15:01 ` James Bottomley
[not found] ` <20050829164144.GC9508@localhost.localdomain>
2005-08-30 0:56 ` Nick Piggin
2005-08-30 1:54 ` Andrew Morton [this message]
2005-08-30 2:46 ` James Bottomley
2005-08-30 2:53 ` Nick Piggin
[not found] ` <20050830052405.GB20843@localhost.localdomain>
2005-08-30 13:06 ` Nick Piggin
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=20050829185406.199e3aed.akpm@osdl.org \
--to=akpm@osdl.org \
--cc=James.Bottomley@SteelEye.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nickpiggin@yahoo.com.au \
--cc=sonnyrao@us.ibm.com \
/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
Powered by JetHome