Quote from: reorder on March 26, 2014, 11:21:50 PM

Quote from: jakiman on March 26, 2014, 09:37:57 PM

Quote from: reorder on March 26, 2014, 09:25:15 PM

Quote from: jakiman on March 26, 2014, 09:15:07 PM

I get much higher hash rate (about 10%) across all my GPU mining rigs when mining HVC on zhpool with a higher diff of 0.2+ compared to 1GH.
Is there a possibility to have a higher diff port for the GPU miners on 1GH also?

What is a typical hashrate of one of your rigs where you have the difference? We'd rather adjust vardiff properly than set up multiple ports as this confuses users unnecessarily.

It could be vardiff but starting at 0.2 as I did see it change to 0.4 also. (Not 100% sure)
Here are my results using your latest 3.25 cgminer and waiting at least 30mins to stabilize:

7850 @ 1GH = 5.38 MH/s
7850 @ ZHP = 6.30 MH/s

280x @ 1GH = 10.50 MH/s
280x @ ZHP = 11.49 MH/s

I have 4 rigs and they all got a noticeable boost.

Others are noticing similar:
https://bitcointalk.org/index.php?topic=506774.msg5914122#msg5914122

I have now adjusted vardiff to push up more agressively than down, that should help with this.

Thank you! I will try this tonight and will let you know.