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...: Tobias Klauser <tklauser at distanz.ch> Cc: linux-kernel at vger.kernel.org --- arch/x86/kernel/process.c | 7 +++++++ kernel/sched/idle.c | 2 ++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index c676853..f7db8b5 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -333,6 +333,13 @@ void arch_cpu_idle(void) x86_idle(); } +#ifdef CONFIG_PARAVIRT +void arch_cpu_idle_poll(void) +{ + paravirt_idle_poll(); +} +#endif + /* * We use this if we don't have any better idle routine.....

From: Yang Zhang <yang.zhang.wz at gmail.com> Some latency-intensive workload have seen obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running inside VM. The most cost I have seen is inside idle path. This patch introduces a new mechanism to poll for a while before entering idle state. If schedule is needed during poll, then we

From: Yang Zhang <yang.zhang.wz at gmail.com> Some latency-intensive workload have seen obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running inside VM. The most cost I have seen is inside idle path. This patch introduces a new mechanism to poll for a while before entering idle state. If schedule is needed during poll, then we