HEADS UP: Major CAM performance regression

[Barry Pederson]

Mike Tancsa wrote:
> 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)

I can report a "metoo" on a 7.0-RELEASE-p3 machine with an Areca 
ARC-1212 card and SATA drives.  "camcontrol tags da0" reports:

	(pass0:arcmsr0:0:0:0): device openings: 1

The machine is just a dog sometimes.  Haven't tried the patch though.

	Barry