> On Fri, Jun 18, 2010 at 02:02:20AM +0600, Roman Mamedov wrote: > actually raid5 sequential reads can be faster than n-1 times the slowest > disk, > as it may skip the parity blocks faster than it could read them. Not much, > probably. Hello all, So would I be correct in concluding that I am CPU bound at this point? My machine is busy creating the parity information so can not receive any faster. A CPU replacement is in order but I have one question in that direction. It appears that the md0 process is only using one core. Is this because it is a single file being written? Should it be using both? The main thrust of this question is which type of CPU upgrade will help my situation. I could go for a faster MHz or more cores. Actually, I can't go much faster on the MHz front. I think 3.4GHz is max and I'm at 3.0GHz. As always, thank you for all your advice. --- Will Y. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html