Post
Topic
Board Mining (Altcoins)
Re: Claymore XMR/QCN/FCN/BCN GPU Miner v4.1
by
Claymore
on 05/07/2014, 06:20:46 UTC
This guy promises that his proxy increases hashrate. Well, I'm curious so I checked how it works.
Miner calculates hashrate as TotalNumberOfShares / TotalTimeRunning. If some pool has problems, miner is disconnected and in 20 seconds it will try to connect to same pool. After 3 attempts it will try next pool in fail-over list and so on. During these reconnection attempt mining is stopped and TotalNumberOfHashes is not growing, but TotalTimeRunning is still growing. So if your internet connection is unstable or your pool has some problems like DDOS, maintenance or something else, hashrate will be decreased. As soon as you restart miner hashrate will be back again until same situation.

Now let's try this "proxy". Miner shows same hashrate, but try to disable your internet connection to simulate problems with pool. And you will see though proxy lost its connection to the pool, it does not disconnect miner, so miner still sends shares... to nowhere. Connection to proxy is ok so miner shows same hashrate, calculate hashes, everything looks good, but actually you don't get anything for shares that it finds. Well, let's wait, may be proxy will notice that something wrong? No, it's too simple for such things, I waited for 15 minutes with disabled internet connection but nothing happened, proxy did not disconnect miner so it still sends shares and shows good hashrate Smiley
So now I know how he gets "+50% hashrate"... Another problem is that when you enable internet connection again, nothing happens again, miner still sends shares to nowhere because proxy does not reconnect to the pool. But hashrate is ok of course Smiley

And link to my warning:
https://bitcointalk.org/index.php?topic=638915.msg7680353#msg7680353