Simon Banton wrote: > > At 10:36 -0400 25/9/07, Ross S. W. Walker wrote: > >Post the modinfo <driver name> to the list just in case somebody > >else knows of any issues with the version you are running. > > This is from RHEL5 - it's the driver that comes built-in: > > [root at serv1 ~]# modinfo 3w-9xxx > filename: > /lib/modules/2.6.18-8.el5/kernel/drivers/scsi/3w-9xxx.ko > version: 2.26.02.007 > license: GPL > description: 3ware 9000 Storage Controller Linux Driver > author: AMCC > srcversion: 029473DD729D96D687985E4 > alias: pci:v000013C1d00001003sv*sd*bc*sc*i* > alias: pci:v000013C1d00001002sv*sd*bc*sc*i* > depends: scsi_mod > vermagic: 2.6.18-8.el5 SMP mod_unload 686 REGPARM > 4KSTACKS gcc-4.1 > > The overall responsiveness of the system under benchmarking when > running RHEL5 is somewhat better than that when running CentOS 4.5. Off of 3ware's support site I was able to download and compile the latest stable release which has this modinfo: [root at mfg-nyc-iscsi1 driver]# modinfo 3w-9xxx.ko filename: 3w-9xxx.ko version: 2.26.06.002-2.6.18 license: GPL description: 3ware 9000 Storage Controller Linux Driver author: AMCC srcversion: 7F428E7BA74EAFF0FF137E2 alias: pci:v000013C1d00001004sv*sd*bc*sc*i* alias: pci:v000013C1d00001003sv*sd*bc*sc*i* alias: pci:v000013C1d00001002sv*sd*bc*sc*i* depends: scsi_mod vermagic: 2.6.20-1.2320.fc5smp SMP mod_unload 686 4KSTACKS I compiled it on a fc5 box, but that shouldn't matter. As far as the "responsiveness" is concerned, the 2.6.18 kernel made some substantial improvements to the "cfq" io scheduler that helped with interactive user experience. If you are using the box as a server though I would try the "deadline" or "noop" scheduler with this card as you may see substantial performance improvements with these schedulers and this card. Try setting the io scheduler to "deadline" and re-run the benchmarks to see what I mean. -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.