From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Li Yang-R58472 <r58472@freescale.com>
Cc: Liu Qiang-B32616 <B32616@freescale.com>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"jgarzik@pobox.com" <jgarzik@pobox.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH V2 RESEND] fsl-sata: I/O load balancing
Date: Fri, 17 Feb 2012 14:18:44 +1100 [thread overview]
Message-ID: <1329448724.2892.43.camel@pasglop> (raw)
In-Reply-To: <94F013E7935FF44C83EBE7784D62AD3F0574273C@039-SN2MPN1-023.039d.mgd.msft.net>
On Fri, 2012-02-17 at 03:09 +0000, Li Yang-R58472 wrote:
> >I tried a debian install on the p5020ds here and I find SATA to be
> >extremely slow, generating millions of interrupts. I think the
> defaults
> >should be a lot more aggressive at coalescing.
>
> The P5020 has a hardware problem with SATA, making it generate more
> interrupts than it should. A new revision of the silicon will fix it.
Ok cool. With a bit of luck you guys can send me a new silicon when it's
available then :-) (The one in the board you got me seems to be in a
socket).
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Li Yang-R58472 <r58472@freescale.com>
Cc: Liu Qiang-B32616 <B32616@freescale.com>,
"jgarzik@pobox.com" <jgarzik@pobox.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: RE: [PATCH V2 RESEND] fsl-sata: I/O load balancing
Date: Fri, 17 Feb 2012 14:18:44 +1100 [thread overview]
Message-ID: <1329448724.2892.43.camel@pasglop> (raw)
In-Reply-To: <94F013E7935FF44C83EBE7784D62AD3F0574273C@039-SN2MPN1-023.039d.mgd.msft.net>
On Fri, 2012-02-17 at 03:09 +0000, Li Yang-R58472 wrote:
> >I tried a debian install on the p5020ds here and I find SATA to be
> >extremely slow, generating millions of interrupts. I think the
> defaults
> >should be a lot more aggressive at coalescing.
>
> The P5020 has a hardware problem with SATA, making it generate more
> interrupts than it should. A new revision of the silicon will fix it.
Ok cool. With a bit of luck you guys can send me a new silicon when it's
available then :-) (The one in the board you got me seems to be in a
socket).
Cheers,
Ben.
next prev parent reply other threads:[~2012-02-17 3:18 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-15 5:49 [PATCH V2 RESEND] fsl-sata: I/O load balancing Qiang Liu
2012-02-15 5:49 ` Qiang Liu
2012-02-15 5:49 ` Qiang Liu
2012-02-15 7:22 ` Li Yang
2012-02-15 7:22 ` Li Yang
2012-02-15 7:29 ` Liu Qiang-B32616
2012-02-15 7:29 ` Liu Qiang-B32616
2012-02-15 7:29 ` Liu Qiang-B32616
2012-02-17 0:40 ` Benjamin Herrenschmidt
2012-02-17 0:40 ` Benjamin Herrenschmidt
2012-02-17 1:54 ` Liu Qiang-B32616
2012-02-17 1:54 ` Liu Qiang-B32616
2012-02-17 1:54 ` Liu Qiang-B32616
2012-02-17 3:17 ` Benjamin Herrenschmidt
2012-02-17 3:17 ` Benjamin Herrenschmidt
2012-02-17 3:30 ` Liu Qiang-B32616
2012-02-17 3:30 ` Liu Qiang-B32616
2012-02-17 3:30 ` Liu Qiang-B32616
2012-02-17 3:09 ` Li Yang-R58472
2012-02-17 3:09 ` Li Yang-R58472
2012-02-17 3:18 ` Benjamin Herrenschmidt [this message]
2012-02-17 3:18 ` Benjamin Herrenschmidt
2012-02-20 4:40 ` Zang Roy-R61911
2012-02-20 4:40 ` Zang Roy-R61911
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