On Tue, January 16, 2007 18:13, Bill Moran wrote: > In response to "Steven Lowry" <[EMAIL PROTECTED]>: >> >> I have been very impressed with my FreeBSD 6.2 install, I have nearly >> everything working but there are a few things which I need help with. >> >> The main problem is my HD performance, it is approx 6x slower than in >> windows XP, hopefully there is a solution. I have an LSI Megaraid 8x >> with >> four drives in a raid 5 configuration, in windows I was getting up to >> 60MB/s >> transfer rates but in FBSD I am getting up to 9MB/s. I followed the >> instructions in the handbook for tuning disks and I have set dma on. >> Being new to unix, I have no idea what to try or get system information >> too continue troubleshooting. >> If anyone could point me in the right direction or to appropriate >> documentation >> it would be much appreciated. > > You should provide the details of how you arrived at those numbers. > Please provide details of your testing methodology. > > While it's impossible to compare apples to apples when pitting Windows > against FreeBSD, you at least want to be comparing two fruits -- not > apples and buffalo steaks or something like that.
Thanks for your reply, I repeatedly copied a 700MB file from one harddrive to the Raid 5 Drive, a different file every time so caching won't be a large factor and consistantly got 8-9MB/s. Copying such large files is something I do on a daily basis. Hardly scientific, more of a real use scenario. Transfer was done via KDE. Here is the dmesg output for the controller; amr0: <LSILogic MegaRAID 1.53> mem 0xfa2f0000-0xfa2fffff,0xfe800000-0xfe8fffff irq 30 at device 14.0 on pci5 amr0: delete logical drives supported by controller amr0: <LSILogic LSI MegaRAID SATA300-8X PCI-X> Firmware 814D, BIOS H431, 128MB RAM amrd0: <LSILogic MegaRAID logical drive> on amr0 amrd0: 712392MB (1458978816 sectors) RAID 5 (optimal) Not sure what is meant by the delete line. Motherboard is an Iwill DK8N, Nforce3 Chipset, AMD 8131 PCI-X bridge. The nvidia raid is populated by two WD raptors in a raid 1, this holds FBSD, the LSI is for data storage. Any other information I could supply? Steve... -- [EMAIL PROTECTED] http://folding.stanford.edu/ _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"