On 02/06/2013 06:03 PM, Jan Kiszka wrote:
> Gilles,
>
> do you remember if this core-3.4 change was a performance optimization
> or a necessary fix? Also, I'm not yet understanding why we need all the
> #ifdefs except for the first one which forces fpu.preload to 0.
It is a performance optimization, without it, we systematically hit the
maximum latency when the timer would tick during a context switch which
restores the FPU. Note that if you change that, you will probably break
-forge.
--
Gilles.
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