# vmstat -i interrupt total rate irq1: atkbd0 18 0 irq5: ohci0 ohci1+ 1 0 irq19: ciss0 144916 3 irq21: uhci0 22 0 cpu0: timer 80002970 1999 irq256: bce0 17042 0 cpu2: timer 79994902 1999 cpu1: timer 79994975 1999 cpu3: timer 79995009 1999 cpu6: timer 79994957 1999 cpu5: timer 79995046 1999 cpu4: timer 79995041 1999 cpu7: timer 79995057 1999 Total 640129956 16000
# camcontrol tags da0 (pass0:ciss0:0:0:0): device openings: 254 Just for clarification, both systems are running amd64. Thanks, Nathan -----Original Message----- From: Krassimir Slavchev [mailto:[email protected]] Sent: Tuesday, 11 August 2009 9:45 PM To: Nathan Le Nevez Cc: [email protected] Subject: Re: Very slow I/O performance on HP BL465c -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, What is the output of 'vmstat -i' and 'camcontrol tags da0' ? I have a ML350 running 7-STABLE with same controller and disks and performance is almost same as your good server. Nathan Le Nevez wrote: > Hi, > > I'm running 7.2-p3 on 2x HP BL465c blade servers, one of which performs very > poorly. Both have the same RAID controller and 2 x 146GB 10k SAS disks > configured in RAID-1. Both controllers have write-cache enabled. Both > servers are running the same BIOS and firmware versions. Neither servers are > running any services other than sshd. > > Blade with good performance (2 x Opteron 2218, 8GB RAM): > > ciss0: <HP Smart Array E200i> port 0x4000-0x40ff mem > 0xfdf80000-0xfdffffff,0xfdf70000-0xfdf77fff irq 19 at device 8.0 on pci80 > ciss0: [ITHREAD] > da0 at ciss0 bus 0 target 0 lun 0 > da0: <COMPAQ RAID 1 VOLUMES MOPK:> AFPi xCePdU D#i2r Leacuntc hAcecde!s > s SCSI-5 device > da0: 135.168MB/s transfers > dSaM0P:: CAoP CPU #3 Launched! > mmand Queueing Enabled > da0: 139979MB (286677120 512 byte sectors: 255H 32S/T 35132C) > > Blade with bad performance (2 x Opteron 2352, 16GB RAM): > > ciss0: <HP Smart Array E200i> port 0x4000-0x40ff mem > 0xfdf80000-0xfdffffff,0xfdf70000-0xfdf77fff irq 19 at device 8.0 on pci80 > ciss0: [ITHREAD] > da0 at ciss0 bus 0 target 0 lun 0 > da0: <COMPAQ RAID 1 VOLUME OK> Fixed Direct Access SCSI-5 device > da0: 135.168MB/s transfers > da0: Command Queueing Enabled > da0: 139979MB (286677120 512 byte sectors: 255H 32S/T 35132C) > > # dbench -t 10 1 2 3 4 > blade1 183.456 MB/sec 236.86 MB/sec 299.28 MB/sec 192.675 MB/sec > blade2 6.97931 MB/sec 9.42293 MB/sec 10.2482 MB/sec 12.407 MB/sec > > Any help/ideas would be greatly appreciated. I have run through all the > Insight diagnostics tools and it fails to find anything wrong with the slow > server. > > Cheers, > Nathan > > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to "[email protected]" > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFKgVmoxJBWvpalMpkRAvilAJsGF0J34SgD34EcBxX8Ic8Hq6OUBACghpBL C7YgX2qmvgb7WSvgFhDrKl8= =JDJx -----END PGP SIGNATURE----- _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[email protected]"
