Messages in this thread | | | Subject | Re: [RFC patch 0/8] timekeeping: Implement shadow timekeeper to shorten in kernel reader side blocking | From | Eric Dumazet <> | Date | Thu, 21 Feb 2013 15:06:49 -0800 |
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On Thu, 2013-02-21 at 22:51 +0000, Thomas Gleixner wrote:
> Now the obvious question whether this is worth the trouble can be > answered easily. Preempt-RT users and HPC folks have complained about > the long write hold time of the timekeeping seqcount since years and a > quick test on a preempt-RT enabled kernel shows, that this series > lowers the maximum latency on the non-timekeeping cores from 8 to 4 > microseconds. That's a whopping factor of 2. Defintely worth the > trouble!
Thanks for doing this !
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