Messages in this thread | | | Subject | Re: [PATCH v2] locking/rwsem: reduce spinlock contention in wakeup after up_read/up_write | From | Jason Low <> | Date | Thu, 23 Apr 2015 13:42:38 -0700 |
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On Thu, 2015-04-23 at 14:24 -0400, Waiman Long wrote:
> The table below shows the % improvement in throughput (1100-2000 users) > in the various AIM7's workloads: > > Workload % increase in throughput
Missing table here? :)
> --- > include/linux/osq_lock.h | 5 +++ > kernel/locking/rwsem-xadd.c | 72 ++++++++++++++++++++++++++++++++++++++++++- > 2 files changed, 76 insertions(+), 1 deletions(-) > > v1->v2: > - Add a memory barrier before calling spin_trylock for proper memory > ordering.
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