Topic: Is Hyperthreading better, neutral, or worse for scrypt calculations? (Read 1609 times)
October 11, 2011, 08:56:24 PM
They're already in the TBX and "what speed are you mining TBX?" threads Bula.
October 11, 2011, 08:55:29 PM
I'm a Windows guy. Not sure if you guys can help me with HT also. I wish there was a list of minerd switches I can play with
October 11, 2011, 08:48:41 PM
In linux64 on a 2600k with default compiling options, HT doesn't help or hurts performance.
In linux64 on a 2600k with AVX enabled in compilation of the client, HT helps significantly.
In linux64 on a 2600k with AVX enabled in compilation of the client, HT helps significantly.
Can you please tell us your compile options and your khash/s. Thanks !
October 11, 2011, 08:31:34 PM
i7 920 on linux64, -march=native -O3 -msse4.2: HT yields 1% more hash at a cost of about 3 degrees more per core.
October 11, 2011, 08:29:51 PM
In linux64 on a 2600k with default compiling options, HT doesn't help or hurts performance.
In linux64 on a 2600k with AVX enabled in compilation of the client, HT helps significantly.
In linux64 on a 2600k with AVX enabled in compilation of the client, HT helps significantly.
October 11, 2011, 07:40:56 PM
Interested in this as well.
October 11, 2011, 07:36:24 PM
To get optimal performance, should one turn hyperthreading on or off?
One advantage of HT is that if I want to not run all my cores, because I'm using the computer, and I don't trust that putting the process on "Low Priority" is good enough, then with HT I can mine with 7/8 "cores", while without it I have to choose between 3/4 and 4/4.
Raw performance wise, how does HT affect mining speed?
LiteCoin is right around the corner.
One advantage of HT is that if I want to not run all my cores, because I'm using the computer, and I don't trust that putting the process on "Low Priority" is good enough, then with HT I can mine with 7/8 "cores", while without it I have to choose between 3/4 and 4/4.
Raw performance wise, how does HT affect mining speed?
LiteCoin is right around the corner.
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