Low khash/s on more CPU

chyraski (OP)

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Low khash/s on more CPU

January 03, 2011, 03:32:22 PM

#1

When I limited bitcoin generation to 2 procs I’ve about 2100khash/s when 4 procs its smaller about 1900khash/s on 1 proc its 1200khash/s on 3 procs 1600khash/s why?
Isn't there any bug?
I have 4 procs intel i5 CPU M 460 2,53GHz 4 GB RAM - it’s fast Comp I think?
Any ideas?

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Re: Low khash/s on more CPU

January 03, 2011, 07:34:32 PM

#2

hi chyraski what OS are u using? win7? u have installed all chipset drivers?

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chyraski (OP)

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Re: Low khash/s on more CPU

January 07, 2011, 10:35:07 AM

#3

Quote from: davidonpda on January 03, 2011, 08:34:53 PM

There are several posts confirming that HT does nothing for performance boost and it actually slows you down - you can get more khash/s limiting to only your physical processors.
On that platform, anything more than two you will slow down.

You are right. I have 2 procs and 4 threads. So best for me is limit generation to 2 procs.
Thanks