Hi, you can't beat the benchmarks that Serge Hallyn did, really thorough!
http://s3hh.wordpress.com/2012/05/02/first-round-of-kvm-performance-tests/ Regards //Ernst 2012/6/12 steamraven <steamra...@yahoo.com>: >> >> Seems a little unfair on btrfs to just to look at absolutes in this context. >> Prior reports said that the fs ground to a halt, >> it isn't doing that by any stretch. > > > I agree. What I am mostly looking for is the best setup > for using KVM snapshots: > > KVM qcow2 on top of something like ext4 or > raw on top of btrfs > > >> >> I haven't let any of these installs complete and used it as intended. >> So that's what I intend to do next; after all one doesn't install every day. >> > > I am going to try to benchmark a couple variations and flags > qcow2 on ext4 (noatime) > raw on btrfs (defaults) > raw on btrfs (noatime,space_cache) > raw on btrfs (noatime,nospace_cache) > raw on btrfs (noatime,nodatacow) > > Any other options that might be good to try? > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
