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984132
2014 Mar 13
3
[PATCH RFC v6 09/11] pvqspinlock, x86: Add qspinlock para-virtualization support
On 12/03/14 18:54, Waiman Long wrote:
> This patch adds para-virtualization support to the queue spinlock in
> the same way as was done in the PV ticket lock code. In essence, the
> lock waiters will spin for a specified number of times (QSPIN_THRESHOLD
> = 2^14) and then halted itself. The queue head waiter will spins
> 2*QSPIN_THRESHOLD times before halting itself. When it has