On Thursday September 25, daniel.zetterman@xxxxxxxxx wrote: > > I have done some automated scripted tests with bonnie++ over RAID10 and > encryption, using different encryption cipher modes to evaluate the impact > on I/O operations. > The strange thing is that I can see a significant increase in read > performance (about 20%) when running the tests DURING the raid resync phase > directly after the raid creation as appose to running it after the resync, > or after I create the array with --assume-clean (which skips initial > resync). Sounds like the read-balancing is doing exactly the wrong thing - quite possible. What layout are you using (near, far, offset?), how many devices? NeilBrown -- 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
