On Mon, Jan 17, 2022 at 10:00:57PM +0800, Hyman Huang wrote: > > This algorithm seems works even worse than the previous version, could you > > have > > a look on what's wrong? > What number the dirty-ring-size of qemu be configured? is it the same as > previous version test?
It should be the same 4096. The test environment can be slightly different, I used a larger guest this time (20G, 40 cores), though. Previously it should be a few gig only with a few cores. Side note: would you also consider picking up this patch along with the series? https://lore.kernel.org/qemu-devel/20211130080028.6474-1-pet...@redhat.com/ I wanted to make sure it lands before this series, e.g., when enabled both dirty limit and migration, disabling dirty limit might trigger the bug already. Thanks, -- Peter Xu
