Mathieu Desnoyers wrote:
> Changes since v2:
> * Only issue cmpxchg() if queue was empty.
> * Add missing memory barrier.
Thanks!
There's a slight drop in performance either from the barrier or larger
code, but I'm not worried (it was around 9-10s before wfcqueue).
$ time ./eponeshotmt -c
Implement enqueue-to-head. It can run concurrently with enqueue, splice
to queue, and iteration, but requires a mutex against dequeue and splice
from queue operations.
Useful for special-cases where a queue needs to have nodes enqueued into
its head.
This patch is only compile-tested.
Changes
Implement enqueue-to-head. It can run concurrently with enqueue, splice
to queue, and iteration, but requires a mutex against dequeue and splice
from queue operations.
Useful for special-cases where a queue needs to have nodes enqueued into
its head.
This patch is only compile-tested.
Changes
Mathieu Desnoyers mathieu.desnoy...@efficios.com wrote:
Changes since v2:
* Only issue cmpxchg() if queue was empty.
* Add missing memory barrier.
Thanks!
There's a slight drop in performance either from the barrier or larger
code, but I'm not worried (it was around 9-10s before wfcqueue).
$
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