https://bugzilla.kernel.org/show_bug.cgi?id=215459 --- Comment #11 from th3voic3@xxxxxxxxxxx --- (In reply to mlevitsk from comment #10) > On Mon, 2022-01-10 at 09:30 +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > https://bugzilla.kernel.org/show_bug.cgi?id=215459 > > > > --- Comment #9 from th3voic3@xxxxxxxxxxx --- > > I've compiled the 5.16 kernel now and so far it's looking very good. APICv > > and > > tdp_mmu are both enabled. Also thanks to dynamic PREEMPT I no longer need > to > > recompile to enable voluntary preemption to cut down my VMs boot time. > > > Great to hear that. > > I am just curious, with what PREEMPT setting, the boot is slow? > With full preemption? I also noticed that long ago, before I joined redhat, > back when I was just a VFIO fan, that booting with large amounts of ram > (32 back then I think), forced preemption and passed-through GPU makes > The VM hang for about like 1/2 of a minute before it shows the bios splash > screen. > > Best regards, > Maxim Levitsky Yeah it used to be like that. I just compared the two though (full vs voluntary PREEMPT) and it doesn't seem to make a difference anymore. Full preemption is now just as fast as voluntary preemption, so I'm just sticking with full preemption since it's my distros default. Best regards Nico -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
