Raz Ben-Jehuda(caro) wrote:
I was testing linux raid for sometime, I created several test units which send read request to the raid using big buffers( 4MB). It seems to be that the software raid consumes to much cpu. I reach 100% cpu usage just by reading from the raid. I used 4 disks raid 0.
Now try to do the same test without raid - I bet it will use as much CPU as your raid test. Raid0 requires almost no CPU resources, unlike improperly set up IDE disks (no DMA is the first thing to check -- hdparm is your friend). /mjt - 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
