Date: Sun, 18 Mar 2012 18:18:36 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Dmitry Morozovsky" <marck@rinet.ru> Cc: mav@freebsd.org, freebsd-stable@freebsd.org Subject: Re: ahci hangs on Supermicro MicroCloud second channel Message-ID: <4EB522A5E2744235B0680BAF97F81862@multiplay.co.uk> References: <alpine.BSF.2.00.1203181934540.65171@woozle.rinet.ru> <DF1AA664FAF24CE3BE38746A6F852BE4@multiplay.co.uk> <alpine.BSF.2.00.1203182057380.65171@woozle.rinet.ru>
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----- Original Message -----
From: "Dmitry Morozovsky" <marck@rinet.ru>
> Well, ahci problem solved, but I still have much worse performance (and
> different on ada0 and ada1!):
> ada0, MC 50-60 MBps
> ada1, MC 13-25 MBps
> ada*, 5017 130+ MBps
>
> Could you please post SATA/AHCI BIOS settings from your machines? Thanks a lot!
Just AHCI configured as far as I remember.
What you mean by MC vs 5017?
How are you measuring disk speed?
What value do you have for sysctl vfs.read_max?
Regards
Steve
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