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Re: ~5 percent kernel performance loss in the last 3 weeks

On Tue, Nov 19, 2013 at 04:02:51PM +0100, Christoph Badura wrote:
> After updating my -current kernel from 6.99.24 to 6.99.27 so I could
> commit my ubsec(4) changes I noticed that under 6.99.27 I get between
> 3 and 8 percent less throughput on accelerated crypto ops.

I was able to pin this down on the pcu/fpu changes.  A kernel from just
before that change doesn't have the performance loss.


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