On Sat, 5 Apr 2003, Bruce Evans wrote:
> Recent optimizations of context switching are large pessimizations
> according to lmbench2, at least in the default case (no LAZY_SWITCH).
The ifdefs are just so convoluted that they are broken in the
!LAZY_SWITCH case.
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Index: swtch.s
Recent optimizations of context switching are large pessimizations
according to lmbench2, at least in the default case (no LAZY_SWITCH).
>From lmbench2 output on an AthlonXP-1600 overclocked with no acpi
(so the timecounter is the TSC and doesn't pessimize context switching
all by itself), and no
