On Wed, Jul 31, 2019 at 09:06:00PM +0800, Xiaoguang Wang wrote: > Mount with both dioread_nolock and nodelalloc will result in huge > performance drop, which indeed is an known issue, so before we fix > this issue, currently we disable this behaviour. Below test reproducer > can reveal this performance drop. Is it really worth it to disable this combination? Nothing goes *wrong* per se; it's just slower than we would like. - Ted
