From: Pavel Machek <pavel@suse.cz>
To: Felix Oxley <lkml@oxley.org>
Cc: OBATA Noboru <noboru.obata.ar@hitachi.com>,
hyoshiok@miraclelinux.com, linux-kernel@vger.kernel.org
Subject: Re: Linux Kernel Dump Summit 2005
Date: Wed, 12 Oct 2005 12:07:31 +0200 [thread overview]
Message-ID: <20051012100730.GO12682@elf.ucw.cz> (raw)
In-Reply-To: <200510121056.48429.lkml@oxley.org>
On St 12-10-05 10:56:46, Felix Oxley wrote:
>
> Thank you for helping a clueless newbie :-)
>
> > Notice that suspend2 project actually introduced compression *for
> > speed*. Doing it right means that it is faster to do it
> > compressed.
>
> I see!
> Little benchmarks here: http://wiki.suspend2.net/BenchMarks
> shows 15% speed _increase_ with compression.
>
> > See Jamie Lokier's description how to *never* slow down.
> Sorry, where is this?
Somewhere on the lkml, *long* ago. Basically idea is to have one
thread doing writing to disk, and second thread doing compression. If
no compressed pages are available, just write uncompressed ones. That
way compression can only speed things up.
Pavel
--
if you have sharp zaurus hardware you don't need... you know my address
next prev parent reply other threads:[~2005-10-12 10:08 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-21 11:55 Hiro Yoshioka
2005-10-06 12:17 ` OBATA Noboru
2005-10-06 14:39 ` Hiro Yoshioka
2005-10-10 8:45 ` Pavel Machek
2005-10-12 8:28 ` OBATA Noboru
2005-10-12 9:02 ` Felix Oxley
2005-10-12 9:09 ` Pavel Machek
2005-10-12 9:56 ` Felix Oxley
2005-10-12 10:07 ` Pavel Machek [this message]
2005-10-12 18:03 ` Andy Isaacson
2005-10-12 22:34 ` Felix Oxley
2005-10-12 11:05 ` jerome lacoste
2005-10-12 21:10 ` Felix Oxley
2005-10-18 13:47 ` OBATA Noboru
2005-10-18 14:10 ` Hugh Dickins
2005-10-19 19:00 ` Theodore Ts'o
2005-10-27 7:48 ` OBATA Noboru
2005-10-11 0:49 ` Andrew Morton
2005-10-11 4:41 ` Hiro Yoshioka
2005-10-12 8:30 ` OBATA Noboru
2005-10-13 5:49 ` Maneesh Soni
2005-10-27 7:45 ` OBATA Noboru
2005-10-13 14:28 ` Troy Heber
2005-10-17 11:19 ` Takao Indoh
2005-10-18 13:48 ` OBATA Noboru
2005-10-19 3:17 ` Takao Indoh
2005-10-27 7:45 ` OBATA Noboru
2005-10-18 14:54 ` Carsten Otte
2005-10-14 9:19 hideki.takahashi
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