My miner doesn't support dwarfpool. If you can raise 1 BTC (with a group of people), I will add support for it.
I had some time today to sniff the Dwarfpool connection. Strange that after all this time, they would choose to implement a non standard version of the stratum protocol. So its a Dwarfpool weirdness issue. Regular farm mining through eth-proxy works just fine. Im noticing a 7 Mhs increase in speed and more consistent mining speeds on my AMD rigs.
FAR LESS THAN 1 BTC--
Eth-Proxy works just fine, it is easy to set-up and run, it is free. I don't use Genoil's Ethminer on my AMD rigs, just on my nVidia rigs. All of them connect through Eth-Proxy. I don't use the stratum mode with Genoil's miner, I just let it mine, and it mines just fine. --scryptr
What are you using for your AMD cards? I have been using Claymore 4.3 seems to be ok. Do you suggest anything different? My 6 380x cards are pulling about 128.5 on average. (21.4 percard)
With genoil ethminer Im pulling 27.x MHs per Sapphire R9 280X Vapor-X under Ubuntu 14.04 with the proprietary AMD driver set at 15.something. Was running the stock ethminer that came with the ethereum package. Mining speed is roughly a 7 MHs increase on average. Its also farm mining against an eth-proxy running on a different server setup for Expanse on Dwarfpool. I had hoped to use genoil's ethminer stratum feature to hit it directly (sans proxy) so that I could set up a little profit switching with Ethereum and SHIFT but to no avail. Just have to have a little more patience
My run script is:
#!/bin/bash
export GPU_FORCE_64BIT_PTR=0
export GPU_MAX_HEAP_SIZE=100
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
ethminer -R ~/.ethash-exp -E old --farm-recheck 300 -G -F http://192.168.1.5:8080/rig3 --cl-extragpu-mem 16 --cl-local-work 256 --cl-global-work 16384
Haven't checked out Claymore yet, but I will now.
NOTE: Vapor-X cards suck for mining which is why I use them on my test rig. I would expect that a better version of the R9 280X or a newer generation card will probably have better results.
SAME HERE--
I was getting 22MH/s a month ago. The rig has become slower since. OC sits at 1100/1500, stock power, no undervolting. However, I am not using Genoil's miner on the AMD rig. --scryptr
Generally, your rig will get slower as the difficulty rises and the DAG gets bigger, regardless the mining software you use. An optimized CL kernel will only get you so far after all. The best variable to adjust your overall speed just from my experience is the Farm recheck time. get a good balance there with your other variables and it will give a smooth consistent mining speed rather than speeds that tend to fluctuate
. Also keep in mind that Im mining the snot out of Expanse at 27 MHs (much lower difficulty) for now as the difficulty of Ethereum which I was getting about 20 MHs per card until it eventually grew above a difficulty that I could remain profitable at. SHIFT for example with such a currently low difficulty would give a high mining rate I think.