On Thu, 19 Aug 2004 14:12:07 -0400 "Rechenberg, Andrew" <ARechenberg@xxxxxxx> wrote: > In the part of the message that was quoted to the linux-raid list the > performance of the RAID devices isn't specified. All I see is you > testing /dev/sda1 and mentioning kernel modules, but no mention of > /dev/mdX or /dev/YourVG/YourLV. It was my reply to answer, tests with md and lvm was in first message to this linux-raid lisst. And setting readahead on lvm volumes helpes. Now I get about 80 Mb/s read on raid5 and about 100Mb/s on raid0, but the cpu overhead was very high, but acceptable for me. But it helps only in 2.6.6! 2.6.7 and 2.6.8.1 much slower than 2.6.6. - 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