https://bugzilla.kernel.org/show_bug.cgi?id=199727 --- Comment #5 from Roland Kletzing (devzero@xxxxxx) --- apparently, things got even worse with proxmox 7, as it seems it's using async io (via io_uring) by default for all virtual disk IO, i.e. the workaround "cache=writeback" does not work for me anymore. if i set aio=threads by directly editing VM configuration, things run smoothly again. so, still being curious: why do VMs get severe hiccup with async (via io_submit or io_uring) when storage is getting some load and why does that NOT happen with the described workaround ? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
