From: Gustavo Chain <g@0xff.cl>
To: linux-kernel@vger.kernel.org
Subject: Re: howto boost write(2) performance?
Date: Tue, 9 Oct 2007 10:19:16 -0400 [thread overview]
Message-ID: <20071009101916.5a7f5c19@0xff.cl> (raw)
In-Reply-To: <1191937817.3641.9.camel@blackberry>
El Tue, 09 Oct 2007 15:50:17 +0200
Michael Stiller <ms@2scale.net> escribió:
> Hi list,
>
> i'm developing an application (in C) which needs to write about
> 1Gbit/s (125Mb/s) to a disk array attached via U320 SCSI.
> It runs on Dual Core 2 Xeons @2Ghz utilizing kernel 2.6.22.7.
>
> I buffer the data in (currently 4) 400Mb buffers and use write(2) in a
> dedicated thread to write them to the raw disk (no fs).
>
> The write(2) performance is not good enough, the writer threads take
> to much time, and i ask you for ideas, howto to boost the write
> performance.
>
> Maybe mmaping the disk would work?
>
> Cheers,
>
> -Michael
>
> PS. I would like to be cc'd as i usually don't read the list due to
> high traffic.
>
> -
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> Please read the FAQ at http://www.tux.org/lkml/
Create a 1GB ram disk, write data there, and then backup into a hard
disk
--
Gustavo Chaín Dumit
next prev parent reply other threads:[~2007-10-09 14:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-09 13:50 howto boost write(2) performance? Michael Stiller
2007-10-09 10:25 ` Nick Piggin
2007-10-10 6:26 ` Michael Stiller
2007-10-09 14:19 ` Gustavo Chain [this message]
2007-10-09 14:56 ` Andi Kleen
2007-10-09 15:42 ` Boaz Harrosh
2007-10-09 16:26 ` Michael Tokarev
2007-10-11 13:50 ` Michael Stiller
2007-10-17 22:19 ` Bill Davidsen
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