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SubjectRe: CONUNDRUM.

> One binary code executes under MSDOS 17% faster(!) than
> under Linux. Why? How to get this loss back? I was dazed&confused.

one thing: it uses ALOT of floating point. And you say this happens:

[irqs off]
[timestamp1]

<ALOT of computing, only from memory, into memory, using CPU and FPU>

[timestamp2]
[irqs on]

and delta := timestamp2-timestamp1, and you say delta(DOS) is 17% better
than delta(Linux) ?

all code has the same alignment? And it's only this code that is
executing? And you say TLB cache isnt trashing?

Impossible!! ;) unless there is some memory chipset / CPU cache / FPU
setup trick done by DOS/Win/Win95.

-- mingo


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