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SubjectRe: Slight optimizations to entry.S patch
> I was familiarizing (or trying to) myself with the i386 architecture code,
> and saw a few possible optimizations. I think they can save a few cycles (not
> that many). Can someone comment? Are the changes worthwhile?

Measure them and see - look at the rdtsc instruction, run a million
iterations of all the various variants and see what you find
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