Re: [Linux-ia64] Instruction Execution

From: Francis Galiegue <>
Date: 2000-10-18 04:17:30
On Tue, 17 Oct 2000, Mattox, Dave wrote:

> I ran a loop 666,000,000 times and it appears that each bundle is taking 3
> seconds to execute. So this means 3 cycles per bundle,
> or 1 cycle per instruction. Is the Lion SDV Machine executing instructions
> serially? If it is, is it Linux setting this, or are the beta chips disabled
> in some manner?

ia64 does not do instruction reordering, at least this is what I've heard, and
nothing which I have read until now seems to deny this. All insn ordering for
faster execution should therefore be done by the compiler.

No URL to give you, sorry...

Francis Galiegue,
"Programming is a race between programmers, who try and make more and more
idiot-proof software, and universe, which produces more and more remarkable
idiots. Until now, universe leads the race"  -- R. Cook
Received on Tue Oct 17 10:11:33 2000

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