HEADS UP: Major CAM performance regression

[Steven Hartland]

This is also the case with 7.0-RELEASE on areca. We have a machine here
which literally grinds to a half every time we run our rrd updates, so
may be a good test case here if we can fix that ;-)

    Regards
    Steve

----- Original Message ----- 
From: "Mike Tancsa" <mike at sentex.net>
To: "Scott Long" <scottl at samsco.org>; "FreeBSD Current" <freebsd-current at freebsd.org>; "FreeBSD Stable" 
<freebsd-stable at freebsd.org>
Sent: Tuesday, February 17, 2009 11:06 PM
Subject: Re: HEADS UP: Major CAM performance regression


> At 05:55 AM 2/13/2009, Scott Long wrote:
>
>>If, instead, it reports a value of '1', you are likely affected.  Note
>>that it may be normal for USB memory devices to report a low number.
>>Also, many legacy SCSI disks, and devices that are not disks, may also be expected to report a low number.
>
> Hi Scott,
>         I tested with the patch on my areca controller, and it still reports 1 post patch.  (On RELENG_6, it shows 255 with the 
> same controller)
>
>         ---Mike
>
>
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