On Tue, Feb 09, 2021 at 10:22:47PM +0000, Song Bao Hua (Barry Song) wrote: > The problem is that SVA declares we can use any memory of a process > to do I/O. And in real scenarios, we are unable to customize most > applications to make them use the pool. So we are looking for some > extension generically for applications such as Nginx, Ceph.
But those applications will suffer jitter even if their are using CPU to do the same work. I fail to see why adding an accelerator suddenly means the application owner will care about jitter introduced by migration/etc. Again in proper SVA it should be quite unlikely to take a fault caused by something like migration, on the same likelyhood as the CPU. If things are faulting so much this is a problem then I think it is a system level problem with doing too much page motion. Jason
