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