Hello, Some what of a novice openbsd user and hope I didnt miss something obvious. I have a box running openbsd 4.2 which I cannot upgrade for various reasons. The machine has the Symbios Logic MegaRAID SAS 1064R controller and currently has a 4 disk Raid5 set up in bios with Seagate ST9146802SS disks. We also run the same machines with Linux and openbsd 4.2 with older hardware using an Ultra Scsi controller.
Anyway we have some basic tests we run and noticed that a basic Bonnie++ test on all 3 machines gave the following performance numbers. Openbsd 4.2 and Symbios SAS 6073 K/sec Block Seq Output and 83086 K/sec Block Seq Input Linux RH 7 and Symbios SAS 65096 K/sec Block Seq Output and 165194 K/sec Block Seq Input Openbsd 4.2 and Adaptec SCSI 30849 K/sec Block Seq Output and 36291 K/sec Block Seq Input Now I wouldnt expect the numbers to match exactly given a number parameters but the 6073 K/sec Block Seq Output is somewhat of a concern. Since it doesnt seem to affect Linux using the exact same hardware I think its most likly a driver and or configuration issue. So does anyone know if there are issues with the mfi driver or any configuration bits within openbsd I might be missing with regaurds to disk performance? Here's the exact line from syslog if thats of any help: Feb 18 19:45:33 /bsd: mfi0 at pci4 dev 14 function 0 "Symbios Logic MegaRAID SAS 1064R" rev 0x00: apic 8 int 18 (irq 5) Feb 18 19:45:33 /bsd: mfi0: logical drives 1, version 5.1.1-0038, 128MB RAM I will note that we needed to apply a driver patch to recognise this card in 4.2 but that was simply to add the pci device type to the list of other supported types. I am unaware of any other changes. thank you for your time -denis -- __________________________ Denis Alan Hainsworth [email protected]
