Re: [PATCH 08/17] powerpc/qspinlock: paravirt yield to lock owner

2022-11-10 Thread Nicholas Piggin
On Thu Nov 10, 2022 at 10:41 AM AEST, Jordan Niethe wrote: > On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: > [resend as utf-8, not utf-7] > > Waiters spinning on the lock word should yield to the lock owner if the > > vCPU is preempted. This improves performance when the hypervisor ha

Re: [PATCH 08/17] powerpc/qspinlock: paravirt yield to lock owner

2022-11-09 Thread Jordan Niethe
On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: [resend as utf-8, not utf-7] > Waiters spinning on the lock word should yield to the lock owner if the > vCPU is preempted. This improves performance when the hypervisor has > oversubscribed physical CPUs. > --- > arch/powerpc/lib/qspinlo

Re: [PATCH 08/17] powerpc/qspinlock: paravirt yield to lock owner

2022-08-11 Thread Jordan Niethe
On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: > Waiters spinning on the lock word should yield to the lock owner if the > vCPU is preempted. This improves performance when the hypervisor has > oversubscribed physical CPUs. > --- > arch/powerpc/lib/qspinlock.c | 97

[PATCH 08/17] powerpc/qspinlock: paravirt yield to lock owner

2022-07-27 Thread Nicholas Piggin
Waiters spinning on the lock word should yield to the lock owner if the vCPU is preempted. This improves performance when the hypervisor has oversubscribed physical CPUs. --- arch/powerpc/lib/qspinlock.c | 97 ++-- 1 file changed, 83 insertions(+), 14 deletions(-)