mysql scaling questions

Mike Tancsa mike at
Sat Dec 1 18:07:19 PST 2007

At 08:54 PM 12/1/2007, Peter Losher wrote:
>Manjunath R Gowda wrote:
> > On 12/1/07, Boris Samorodov <bsam at> wrote:
> >>
> >> 3ware driver is under GIANT at 7.x. I don't know if it's the same for
> >> linux.
> >
> > It is not under GIANT any more, MPSAFE starting from 7.0 BETA1.
>I know in one case on a box running BETA2 the kernel dmesg reported that
>the twe driver was both GIANT and MPSAFE... (dunno if that has been
>fixed in BETA3 yet, I should check...)

         I think the card in question is twa in this case.

On a RELENG_7 box from the other day, it shows up as

3ware device driver for 9000 series storage controllers, version:
twa0: <3ware 9000 series Storage Controller> port 0x3000-0x30ff mem 
0x88000000-0x89ffffff,0x8a200000-0x8a200fff irq 16 at device 0.0 on pci2
twa0: [ITHREAD]
twa0: INFO: (0x15: 0x1300): Controller details:: Model 9650SE-2LP, 2 
ports, Firmware FE9X, BIOS BE9X
da0 at twa0 bus 0 target 0 lun 0
da0: <AMCC 9650SE-2LP DISK 3.06> Fixed Direct Access SCSI-5 device
da0: 100.000MB/s transfers
da0: 76283MB (156227584 512 byte sectors: 255H 63S/T 9724C)


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