linux/virt
Christian Borntraeger 2086d3200d KVM: shrink halt polling even more for invalid wakeups
commit 3491caf275 ("KVM: halt_polling: provide a way to qualify
 wakeups during poll") added more aggressive shrinking of the
polling interval if the wakeup did not match some criteria. This
still allows to keep polling enabled if the polling time was
smaller that the current max poll time (block_ns <= vcpu->halt_poll_ns).
Performance measurement shows that even more aggressive shrinking
(shrink polling on any invalid wakeup) reduces absolute and relative
(to the workload) CPU usage even further.

Cc: David Matlack <dmatlack@google.com>
Cc: Wanpeng Li <kernellwp@gmail.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-18 18:04:22 +02:00
..
kvm KVM: shrink halt polling even more for invalid wakeups 2016-05-18 18:04:22 +02:00
lib irqbypass: Disallow NULL token 2016-05-11 22:37:54 +02:00
Makefile virt: Add virt directory to the top Makefile 2015-10-01 15:06:44 +02:00