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4c088493c8
Noting pause loop exited vcpu or cpu relax intercepted helps in filtering right candidate to yield. Wrong selection of vcpu; i.e., a vcpu that just did a pl-exit or cpu relax intercepted may contribute to performance degradation. Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> # on s390x Signed-off-by: Avi Kivity <avi@redhat.com> |
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