Sintsov Dmitri wrote:
>
> On Sat, 20 Jan 2001, J.P. Morris wrote:
>
>> Finally, I seem to be getting significantly worse performance with bochs
>> on my new 1GHz system than I did on my 400MHz K6.. any ideas?
>>
>
> Could be that cause a branch predictor of K6 is one of the best and it's
> very important for integer code - I think K6 were faster than PIII/Athlon
> when running at the same freq (let's say 400MHz) on integer code.
It's not a minor difference, it's a HUGE difference. On the K6-3 I had
around 700000 ips, probably a bit less (I forget now), on the Tbird I
am getting roughly 20000 ips, around thirty-five times slower! At first
I assumed it was a cosmetic problem but it unfortunately it actually
seems to be running at that speed. I haven't had the patience to sit
out the POST yet.
I guess I'll have to try profiling it or something..
> Unfortunately, K6 arch doesn't scale well beyond 500Mhz and FPU is weak.
> There were interesting reviews at www.realworldtech.com and at
> www.aceshardware.com (sorry if that's offtopic).
> Uhus
--
JP Morris - aka DOUG the Eagle (Dragon) -=UDIC=- [EMAIL PROTECTED]
Fun things to do with the Ultima games (http://www.it-he.org)
Developing a U6/U7 clone (http://fly.to/ire)
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