From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mike Mattie <codermattie@gmail.com>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: htpt366 PCI latency value is really high
Date: Sat, 28 Apr 2007 17:01:37 +0400 [thread overview]
Message-ID: <463345B1.1070600@ru.mvista.com> (raw)
In-Reply-To: <20070428104811.574de77b@the-village.bc.nu>
Hello.
Alan Cox wrote:
>>There are many reasons a card would default to a higher level, but in
>>the end it is basically tuning the card for a server application.
>>A warning that some cards default to high PCI latency values; settings that
>>can interfere with latency sensitive devices such as sounds cards - this
>>could be a help to others.
> A warning that there are quite a few cards that subtly corrupt your data
> if you don't have the latency set to values to work around chip errata is
> also worth making.
> You fiddle with PCI latency values at your peril, and preferably with the
> data sheet and errata docs to hand.
And I don't have the latter for the HighPoint chips. Not sure if anybody ever had it. :-)
> Alan
MBR, Sergei
prev parent reply other threads:[~2007-04-28 13:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 13:49 htpt366 PCI latency value is really high Mike Mattie
2007-04-26 14:30 ` Sergei Shtylyov
2007-04-28 6:09 ` Mike Mattie
2007-04-28 9:48 ` Alan Cox
2007-04-28 13:01 ` Sergei Shtylyov [this message]
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