[PATCH v1] Optimize plain queues by using mpmc ring instead of lock #683
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added 4 commits
August 24, 2018 16:36
The ring is similar to ring_internal.h, but checks for ring fullness. This ring can be used for storing events in a queue as enqueues can be tried on an already full queue. Signed-off-by: Petri Savolainen <petri.savolainen@linaro.org>
Change plain queue implementation to use ring_mpmc instead of ticket lock and ring_st ring. Performance and scalability improves especially on 64 bit ARM. Signed-off-by: Petri Savolainen <petri.savolainen@linaro.org>
Store mask and data pointer in queue entry instead of ring structure. Data is constant and can be stored among other frequently used read only data. Also other ring type use the same variables. Signed-off-by: Petri Savolainen <petri.savolainen@linaro.org>
Store mask and data pointer in queue entry instead of ring structure. Data is constant and can be stored among other frequently used read only data. Also other ring type use the same variables. Signed-off-by: Petri Savolainen <petri.savolainen@linaro.org>
muvarov
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Reviewed. Merged. |
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Performance improves (measured with queue_perf test) especially when there's contention on queue operations and especially on ARM.