Date: Tue, 16 Nov 2004 11:05:43 -0500 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-current@FreeBSD.org Cc: Robert Watson <rwatson@FreeBSD.org> Subject: Re: 6-CURRENT unbelievably slow? Message-ID: <200411161105.43475.jhb@FreeBSD.org> In-Reply-To: <4199AEC8.1070608@marcuscom.com> References: <Pine.NEB.3.96L.1041110212739.85487A-100000@fledge.watson.org> <200411151424.49790.jhb@FreeBSD.org> <4199AEC8.1070608@marcuscom.com>
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On Tuesday 16 November 2004 02:39 am, Joe Marcus Clarke wrote:
> John Baldwin wrote:
> | On Thursday 11 November 2004 05:37 pm, Kris Kennaway wrote:
> |>On Thu, Nov 11, 2004 at 01:39:09PM +0100, Alexander@Leidinger.net wrote:
> |>>Zitat von Joe Marcus Clarke <marcus@freebsd.org>:
> |>>>I noticed the interrupt storm detection line in dmesg. In previous
> |>>>builds, this worked, but it doesn't seem to be taking effect anymore.
> |>>
> |>>AFAIK the interrupt storm detection was removed (at least partially).
> |>
> |>s/removed/fixed so it doesn't give so many false positives/
> |>
> |>(at least partially) ;-)
> |>
> |>Talk to jhb..
> |
> | Please try this patch out and let me know if it does any better:
>
> Yes, this patch makes a world of difference. The interrupt storm is
> still there, but the ata0 (irq 14) rate is down to 1480 per second, and
> the interrupt load is only ~2%. Thanks.
Can you tweak it a bit and see if it works even better if you put an #if 0
around the lines that read:
+ if (count > hz) {
+ storming = 0;
+ count = 0;
+ } else
+ count++;
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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