Hyperthreading off = stutters off.

[335th_GRAthos]

Originally Posted by ZaltysZ

In affinity mask each bit represents one CPU: 1 value - use CPU, 0 value - don't. Bits are counted from right to left, so you need do the same with CPUs. In our case, that would be: 7, 6, 5, 4, 3, 2, 1, 0. Now replace wanted CPUs with 1s and unwanted with 0s. You will get: 0, 1, 0, 1, 0, 1, 0, 1 or simply 1010101. Convert that from binary to decimal (use Windows calculator) and get a mask of 85.

[Standing Ovation]

Thanks!
(we started with numbers 1,2,3,4 some years ago; then moved to 15 six months ago; now 85! This is progress my friends! )


I have been flying yesterday with HT = off
I must say I did not have any stutters but, I also realised I never had any stutters before.
So, I wanted to turn HT=on again and test but I also wanted to control better the use of CoD on the cores (and identify how much CPU-time is used by other processes).

Interestingly enough, I had exactly the same concern as SEE (the NV threaded optimisation usage).

~S~