On Thu, May 16, 2019 at 10:54:57AM +0100, Filipe Manana wrote: > > Haven't tried ext4 with 1 process only (instead of 4), but I can try > to see if it happens without concurrency as well. How many CPU's and how much memory were you using? And I assume this was using KVM/QEMU? How was it configured? Thanks, - Ted