On 07/10/2012 03:31 PM, Raghavendra K T wrote:
From: Raghavendra K T<raghavendra...@linux.vnet.ibm.com>
Currently PLE handler can repeatedly do a directed yield to same vcpu
that has recently done PL exit. This can degrade the performance.
Try to yield to most eligible guy instead by alternate yielding.
Precisely, give chance to a VCPU which has:
(a) Not done PLE exit at all (probably he is preempted lock-holder)
(b) VCPU skipped in last iteration because it did PL exit, and probably
has become eligible now (next eligible lock holder)
Signed-off-by: Raghavendra K T<raghavendra...@linux.vnet.ibm.com>
Reviewed-by: Rik van Riel <r...@redhat.com>
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