From: Tejun Heo <htejun@gmail.com>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Disk schedulers
Date: Fri, 15 Feb 2008 09:02:31 +0900 [thread overview]
Message-ID: <47B4D697.3030106@gmail.com> (raw)
In-Reply-To: <20080214162104.GA5347@ics.muni.cz>
Lukas Hejtmanek wrote:
> Hello,
>
> whom should I blame about disk schedulers?
>
> I have the following setup:
> 1Gb network
> 2GB RAM
> disk write speed about 20MB/s
>
> If I'm scping file (about 500MB) from the network (which is faster than the
> local disk), any process is totally unable to read anything from the local disk
> till the scp finishes. It is not caused by low free memory, while scping
> I have 500MB of free memory (not cached or buffered).
>
> I tried cfq and anticipatory scheduler, none is different.
>
Does deadline help?
--
tejun
next prev parent reply other threads:[~2008-02-15 0:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-14 16:21 Disk schedulers Lukas Hejtmanek
2008-02-15 0:02 ` Tejun Heo [this message]
2008-02-15 10:09 ` Lukas Hejtmanek
2008-02-15 14:42 ` Jan Engelhardt
2008-02-15 14:57 ` Prakash Punnoor
2008-02-15 17:11 ` Zan Lynx
2008-02-15 21:32 ` FD Cami
2008-02-16 16:13 ` Lukas Hejtmanek
2008-02-20 17:04 ` Zdenek Kabelac
2008-02-15 15:59 ` Lukas Hejtmanek
2008-02-15 16:22 ` Jeffrey E. Hundstad
2008-02-15 17:36 ` Roger Heflin
2008-02-15 17:24 ` Paulo Marques
2008-02-16 16:15 ` Lukas Hejtmanek
2008-02-16 17:20 ` Pavel Machek
2008-02-20 18:48 ` Lukas Hejtmanek
2008-02-21 23:50 ` Giuliano Pochini
2008-02-17 19:38 ` Linda Walsh
2008-02-28 17:14 ` Bill Davidsen
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