From: Phillip Lougher <phillip.lougher@gmail.com>
To: Pat LaVarre <p.lavarre@ieee.org>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: [announce] Squashfs2.0-alpha released (compressed filesystem)
Date: Fri, 21 May 2004 16:53:51 +0100 [thread overview]
Message-ID: <bffbecbb040521085364ab04a8@mail.gmail.com> (raw)
In-Reply-To: <1085153863.6103.35.camel@patibmrh9>
On 21 May 2004 09:37:43 -0600, Pat LaVarre <p.lavarre@ieee.org> wrote:
>
> > http://squashfs.sourceforge.net
> > increased the block size to 64K ...
>
> An aligned 64 KiB, as DVD/ CD-RW rewards in thruput?
>
Alignment to 64K block boundaries would impair compression. All
filesystem objects (data, metadata etc). are packed together on a bye
alignment to maximize compression.
The increase to 64K blocks do increase I/O throughput by the simple
fact there's more data read per seek. For CD/DVD the fragments also
tend to help by minimizing seeking to read adjacent files.
> Pat LaVarre
>
>
next prev parent reply other threads:[~2004-05-21 15:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-21 15:28 [announce] Squashfs2.0-alpha released (compressed filesystem) Phillip Lougher
2004-05-21 15:37 ` Pat LaVarre
2004-05-21 15:53 ` Phillip Lougher [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-05-21 13:29 Phillip Lougher
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