I found that my miners temperature is higher now than from the start. Before it was never above 49°C, now its at 53°C. I see a bit dust and i wonder if that bit dust can have such a great effect... can only test it.
Yesterday i had some problems with disabling cgminer. It stated then comms error buffer or something and cgminer did not close even after long time. I had to use a new tab for restart.
cgminer has no way to measure the actual hashrate of the avalon asic chips, it is estimating based on the nonces returned, just as is the pool you are connected to.
In my tests i found that the pools hashrate is very volatile. Using the same setting at the same temperature with cgminer gives nearly the same average hashrate after 1 hour. Its different with the pools hashrate. Even when i take an average out of the last 10 shown hashrate values. So i trust more the values i get from cgminer.
What i wonder... when i set the difficulty to 1000 doesnt i lose mining income? I mean cgminer only is sending such high shares to the pool then. All other shares are discarded. And there are a lot smaller shares at 1 and so. So doesnt this mean to lose much or doesnt this matter? I normally run with diffi 8 but if it doesnt matter i would use maybe 1000 or so.
No, setting the difficulty higher only increases the variance.
So e.g. 1000 diff vs 10 diff means you will submit (on average) one in every 1000 nonces found rather than on in every 10.
However each nonce submitted will be worth 1000 1diff shares rather than 10 1diff shares.
So ... yes ... simply ... higher variance, nothing more.
At the moment my main rig (125.5GH/s) is mining at 2176 diff ... about 1 share per 48 seconds.
(due to the higher voltage)
