From 6e9b622d1c3628fae65217465a148b157a361c2a Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Wed, 15 May 2019 09:59:08 +0200 Subject: KVM: s390: change default halt poll time to 50us Recent measurements indicate that using 50us results in a reduced CPU consumption, while still providing the benefit of halt polling. Let's use 50us instead. Acked-by: David Hildenbrand Acked-by: Janosch Frank Acked-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- arch/s390/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index bdbc81b5bc91..2b00a3ebee08 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -36,7 +36,7 @@ */ #define KVM_NR_IRQCHIPS 1 #define KVM_IRQCHIP_NUM_PINS 4096 -#define KVM_HALT_POLL_NS_DEFAULT 80000 +#define KVM_HALT_POLL_NS_DEFAULT 50000 /* s390-specific vcpu->requests bit members */ #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) -- cgit v1.2.3