On Wed, Oct 20, 2021 at 08:08:41PM +0800, Wanpeng Li wrote: > On Wed, 20 Oct 2021 at 20:04, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > > > On 20/10/21 14:01, Wanpeng Li wrote: > > > Yes, in the attachment. > > > > > > Wanpeng > > > > This one does not have CONFIG_PREEMPT=y, let alone CONFIG_PREEMPT_RCU. > > It's completely impossible that this patch has an effect without those > > options. > > Sorry, should be this one in the attachment. Uhhmmm.. you have lockdep enabled. You know you shouldn't be doing performance measurements with lockdep on, right?
