On Wed, Dec 03, 2008 at 12:28:51AM +0100, Holger Mauermann wrote: > Keld Jørn Simonsen schrieb: > > How is it if you use the raid10,f2 without lvm? > > What are the numbers? > > After a fresh installation LVM performance is now somewhat better. I > don't know what was wrong before. However, it is still not as fast as > the raid10... > > dd on raw devices > ----------------- > > raid10,f2: > read : 409 MB/s > write: 212 MB/s > > raid10,f2 + lvm: > read : 249 MB/s > write: 158 MB/s What is the performance with raid0? What is the performance with a filesystem? Did you try blockdev --setra 65536 /dev/md3 How many disks are you using? best regards keld -- 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
