[lttng-dev] userspace rcu flavor improvements

Lai Jiangshan laijs at cn.fujitsu.com
Mon Nov 19 02:52:18 EST 2012


On 11/18/2012 12:16 AM, Mathieu Desnoyers wrote:
> Here are a couple of improvements for all userspace RCU flavors. Many
> thanks to Alan Stern for his suggestions.


It makes urcu like SRCU. (sync_rcu = check zero + flip + check zero)
If I have time, I may port more SRCU code to urcu.

> 
> Patch 8/8 is only done for qsbr so far, and proposed as RFC. I'd like to
> try and benchmark other approaches to concurrent grace periods too.
> 
> Feedback is welcome,
> 
> Thanks,
> 
> Mathieu
> 
> 




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