On 01/08/2013 05:40 PM, Stefan Hajnoczi wrote: > Otherwise use sheepdog writeback and let QEMU block.c decide when to > flush. Never use sheepdog writethrough because it's redundant here.
I don't get it. What do you mean by 'redundant'? If we use virtio & sheepdog block driver, how can we specify writethrough mode for Sheepdog cache? Here 'writethrough' means use a pure read cache, which doesn't need flush at all. Thanks, Yuan
