Re: PROBLEM: SATA AHCI driver significant throughput loss in 2.6.22-rc5-g75154f40-dirty

From: Tejun Heo
Date: Tue Jul 03 2007 - 04:25:30 EST


Michal Piotrowski wrote:
> Hi,
>
> [adding linux-ide to cc]
>
> On 27/06/07, Dan <metalifloyd@xxxxxxxxx> wrote:
>> Something changed with the AHCI SATA driver in the latest git version.
>> With 2.6.21 I get ~49MB/sec according to hdparm. Using the latest git
>> version I only get ~8MB/sec. I've attached my .config and have
>> included some info about my system below. Please let me know if you
>> need more information or if I can help test anything.

Please post boot dmesgs of before and after.

--
tejun
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