asr ( 2015S ) support in 5.4 amd64?

[Bruce Burden]

    Hi Steve,

On Wed, Jun 01, 2005 at 11:38:17AM +0100, Steven Hartland wrote:
> Thanks for that info. Have you had experience with the card
> itself? Just did a few benchmarks and considering the disks
> attached ( RAID 5 ) the performance is shockingly bad
> 20->30MB/s read off the device node no other IO happening
> ( measured using dd ).
> Does anyone have any recomendations for other SCSI
> RAID cards that can provide good performance and amd64
> support?
> 
   My 3210S generates around 45Mps:

su-2.05b# dd if=ft_sill_photos.zip of=/dev/null
4040211+1 records in
4040211+1 records out
2068588162 bytes transferred in 46.935343 secs (44073145 bytes/sec)
su-2.05b# dd if=ft_sill_photos.zip of=/dev/null bs=65536
31564+1 records in
31564+1 records out
2068588162 bytes transferred in 45.793030 secs (45172555 bytes/sec)

   Compared to my 39320:

su-2.05b# cd /spare
su-2.05b# dd if=ft_sill_photos.zip of=/dev/null bs=65536
31564+1 records in
31564+1 records out
2068588162 bytes transferred in 84.538472 secs (24469193 bytes/sec)

   which is where the system files are mounted (/, /var, /usr, etc).

	Both cards are installed in 64 bit/66 MHz slots. The system
   disk is a 10K IBM U160 disk, the RAID is composed of Seagate U320
   drives. Still, performance is limited to U160 levels due to the
   controllers or the drives...

							Bruce
-- 
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  "I like bad!"                         Bruce Burden    Austin, TX.
        - Thuganlitha
        The Power and the Prophet
        Robert Don Hughes