Rig 2360h/s earns 14% more than Rig 2560h/s. How?

[kedes]

Hello.
I tested 2 small rigs on minexmr.com
Started both at same time, on the same pool, on the same internet line, but on different xmr wallets. Used same miner (claymore cryptonote 10.2)
First rig (rx 470 + rx 480 + rx 470) 2360h/s earned 0.04xmr for 24hours
Second rig (rx 580 x3) 2560h/s earned 0.035xmr for 24hours
Anybody could explain me how 2560h/s rig earned more than 14% less than 2360h/s Rig?
I was trying to understand it and checked workers graphs (check attachments). There is sometimes hashrate droped to 0 on second rig. I checked miners logs and there were no any diconnects. Just claymore mined dev fee at same time. Just a few seconds, but the graph looks like my rig didnt work for 10-15min every time. First rig worked with dev fee on too but there is no any drops to zero on the graph.
So i'll be happy if someone can explain me what's wrong with my second rig and how can i fix it to mine as good as first rig does.
I'm sorry for my english.

https://gyazo.com/27418f147a73db1326448db27301bd1c
https://gyazo.com/40929c2564067bd7f423fb4bd96fe43e

[wacko]

There is sometimes hashrate droped to 0 on second rig. I checked miners logs and there were no any diconnects. Just claymore mined dev fee at same time. Just a few seconds, but the graph looks like my rig didnt work for 10-15min every time.

How detailed are your logs? Do you only see events like "dev fee mining", "disconnected" etc? Cause ideally you need to run with a more detailed log and actually see what's going on during those 10-15 minutes.. are there any shares sent/accepted during that time?

[kedes]

how can i upload log files?
There is no any disconnets in the log. Devfee took only 1min every 1 hour.

[kedes]

2560h/s rig found a share every 6 minutes (diff 1000000 aprox)
2360h/s rig found a share every 5 minutes (diff 900000 aprox)
So 2360h/s found about 15% more shares than 2560h/s rig did.

[wacko]

how can i upload log files?
There is no any disconnets in the log. Devfee took only 1min every 1 hour.

Yes, I understand that there were no disconnects during that time. The question is what was happening and not what wasn't. When you look at the miner's window you see a lot of stuff happening: shares being accepted, new work received / blocks announced, your hashrate reported etc. If you have your log settings (in xmr-stak it's called verbose_level, not sure how claymore calls it) set to the highest level of detail, all this information should be logged, just like the miner outputs it in the main window. I don't know what kind of verbosity you've set since you didn't mention it, and I didn't see your logs either. If you want to find out what happened within those periods of time when you see the dips to 0 on the graphs — you need to "find" them in the logs and see what was going on. Maybe your rig was switching to the dev pool, and then for some reason can't reconnect to the main pool quick enough.. I don't know, the answer should be in the logs. If they're not detailed enough then adjust log settings and repeat the experiment.

2560h/s rig found a share every 6 minutes (diff 1000000 aprox)
2360h/s rig found a share every 5 minutes (diff 900000 aprox)
So 2360h/s found about 15% more shares than 2560h/s rig did.

Which were 10% "smaller" shares. Nothing unusual here.

[kedes]

okay. I checked. There were no any found shares for 35minutes after devfee. That's time was displayed like 0h/s on the graph, but my rig worked and was getting the job just couldnt find any shares because too high difficulty.
from 12:10 to 12:45  "Job changed, drop current round" only
then only at 12:46 found share and my hashrate recovered...

12:09:41:685   1b30   DevFee: XMR: Stratum - connecting to 'pool.minexmr.com' <188.165.199.78> port 3333 (unsecure)
12:09:41:763   1b30   DevFee: XMR: Stratum - Connected (pool.minexmr.com:3333) (unsecure)
....
12:09:41:982   1b30   DevFee: start mining (54sec)
12:09:41:982   1b30   Devfee pool share target: 0x000053e2 (diff: 200007H)
12:09:46:826   1b30   socket was closed remotely
12:09:46:826   1b30   DevFee: XMR: Connection lost, retry in 20 sec...
12:10:06:843   1b30   DevFee: XMR: Stratum - connecting to 'pool.minexmr.com' <188.165.199.78> port 3333 (unsecure)
12:10:06:952   1b30   DevFee: XMR: Stratum - Connected (pool.minexmr.com:3333) (unsecure)
......

12:10:07:062   1b30   Devfee pool share target: 0x000053e2 (diff: 200007H)
12:10:07:108   14fc   Job changed, drop current round
12:10:07:108   1810   Job changed, drop current round
12:10:07:108   127c   Job changed, drop current round

12:10:08:546   1a00   GPU0 t=56C fan=36%, GPU1 t=57C fan=35%, GPU2 t=50C fan=36%
12:10:08:546   1a00   em hbt: 0, fm hbt: 0,
12:10:08:546   1a00   watchdog - thread 0, hb time 1391
12:10:08:546   1a00   watchdog - thread 1, hb time 219

12:10:08:593   1b30   socket was closed remotely
12:10:08:593   1b30   DevFee: XMR: Connection lost, retry in 20 sec...
12:10:28:610   1b30   DevFee: XMR: Stratum - connecting to 'pool.minexmr.com' <188.165.199.78> port 3333 (unsecure)
12:10:28:704   1b30   DevFee: XMR: Stratum - Connected (pool.minexmr.com:3333) (unsecure)
12:10:28:797   1b30   got 303 bytes
12:10:28:797   1b30   buf: {"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"817473455362639","job":{"blob":"060683dbcfd005cad45b0306350a730b0354d52f1b6d671063824287ce4a82c971d109d56d1f1b0 0000000ea8abe6b048e909ac3d70904e277e57be4bdf87f944135c8fa9feec754acfa9116","job_id":"278606961922368","target":"e2530000"},"status":"OK"}}
12:10:28:797   1b30   parse packet: 302
12:10:28:797   1b30   new buf size: 0
12:10:28:797   1b30   Devfee pool share target: 0x000053e2 (diff: 200007H)
12:10:28:829   11d4   Job changed, drop current round
12:10:28:829   127c   Job changed, drop current round
12:10:28:829   14fc   Job changed, drop current round

12:10:30:235   1b30   socket was closed remotely
12:10:30:235   1b30   DevFee: XMR: Connection lost, retry in 20 sec...
12:10:39:407   1a00   GPU0 t=56C fan=36%, GPU1 t=57C fan=36%, GPU2 t=50C fan=36%
12:10:39:423   1a00   em hbt: 0, fm hbt: 9188,
12:10:39:423   1a00   watchdog - thread 0, hb time 703
12:10:39:423   1a00   watchdog - thread 1, hb time 3953

12:10:50:252   1b30   DevFee: XMR: Stratum - connecting to 'pool.minexmr.com' <188.165.199.78> port 3333 (unsecure)
12:10:50:345   1b30   DevFee: XMR: Stratum - Connected (pool.minexmr.com:3333) (unsecure)
12:10:50:455   1b30   got 303 bytes
12:10:50:455   1b30   buf: {"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"116941850420217","job":{"blob":"060699dbcfd005cad45b0306350a730b0354d52f1b6d671063824287ce4a82c971d109d56d1f1b0 0000000c792993548e0bebd3c9425f6cafaa0cc3e5798b1e008c9e6371572a0cd02469616","job_id":"137751536901858","target":"e2530000"},"status":"OK"}}

12:10:50:455   1b30   parse packet: 302
12:10:50:455   1b30   new buf size: 0
12:10:50:455   1b30   Devfee pool share target: 0x000053e2 (diff: 200007H)
12:10:50:455   1b30   DevFee: stop mining and disconnect
12:10:50:533   15a0   Job changed, drop current round
12:10:50:533   1268   Job changed, drop current round
12:10:50:533   1a74   Job changed, drop current round

12:11:03:268   1834   got 253 bytes
12:11:03:268   1834   buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"0606a9dbcfd005e456bce603e25244d0ae621a37059e6ff8579f79fdc44e4849d83dab652f42280 0000000da66a58e017683ecf9de789b4f42a552eae51b1018bb4ee7216a864b147d4ef217","job_id":"583816095091214","target":"c6100000"}}

12:11:03:268   1834   parse packet: 252
12:11:03:268   1834   new buf size: 0
12:11:03:268   1834   XMR: 11/21/17-12:11:03 - New job from pool.minexmr.com:3333
12:11:03:268   1834   target: 0x000010c6 (diff: 1000225H)
12:11:03:268   1834   XMR - Total Speed: 2508 H/s, Total Shares: 193, Rejected: 0, Time: 20:15
12:11:03:268   1834   XMR: GPU0 853 H/s, GPU1 851 H/s, GPU2 804 H/s
12:11:03:596   15a0   Job changed, drop current round
12:11:03:596   13c8   Job changed, drop current round

12:45:13:735   1a00   watchdog - thread 11, hb time 3954
12:45:20:580   1a74   XMR: put share nonce 1f233
12:45:20:580   1a74   XMR round found 1 shares
12:45:20:595   1834   XMR: 11/21/17-12:45:20 - SHARE FOUND - (GPU 0)

[wacko]

Try to change miner, or pool, or both. I've had a similar problem mining XMR on dwarf with xmr-stak on cpu, was getting a lot less than I was supposed to, and figured it was also related to dev fee pool mining, cause after the switch back from the dev pool there was a dip to 0, just like you have. No idea why this is happening with some rigs/pools/miners, some bug with difficulty adjustment I guess, but I just changed both the miner and the pool that time and the profits returned to normal.

[kedes]

So looks like the pool does not count the hash received after the devfee untill the nearest share found.
Wacko, which miner for AMD GPU can you recommend and which pool?

[wacko]

So looks like the pool does not count the hash received after the devfee untill the nearest share found.

Pools don't care about your hashrates, they want actual shares received. The hashrate they show on their side is calculated based on the shares you submit. If you don't submit anything, they'll show 0.

Wacko, which miner for AMD GPU can you recommend and which pool?

I've switched from XMR to ETN as soon as ETN showed up and it's been more profitable than XMR all this time (for like a week or two now). And before that it was ETH. So I haven't mined XMR for quite a while and can't really recommend any pool. If you want XMR, just mine ETN and then buy XMR with them — you'll get more this way.

[kedes]

I mined ETN too. But all pools which i tried gave 10-15% less than WTM claimed. Also ETN price drops 10% every day. So every day i earned 12% less because pool and 10% less because price drop. 22% total. So i decided - ETN is not so profitable as WTM dispays. XMR is more stable.
Thank you very much anyway. You helped me a lot and you forced me to understand my problem deeper

[kedes]

i think i know how to fix it.
Just need to set static dif
minexmr.com is the first pool where i should do that
I'll report tomorrow about results. If it doesnt help then i'll be forced to disable devfee.

[wacko]

i think i know how to fix it.
Just need to set static dif
minexmr.com is the first pool where i should do that
I'll report tomorrow about results. If it doesnt help then i'll be forced to disable devfee.

Actually yeah, I just remembered, I did have to set static diff for minexmr! Just checked my bat files and the cpu one has "+20000" appended to the worker name, while the gpu ones have "+100000". Not even sure now why I had to add these back then, but it might help you as well.

[kedes]

It helped to make the graph normal. Just look at the graph how it changed
https://gyazo.com/603e7e8a4db2e2f52d2989c306dc2240
But actually it didnt help - i still earning 15% less than WTM displays.
There is an other problem now. The graph displays 2.1-2.2k hashrate instead 2.56k.
It displays more real hashrate before i set static diff. So i dont understand anything now.

[crocozino]

I guess best way to fix it, or at least try to fix it, just change the  pool and see how it goes, will be there any difference
I think some poll just steals shares. suprnova for example

[wacko]

There is an other problem now. The graph displays 2.1-2.2k hashrate instead 2.56k.
It displays more real hashrate before i set static diff. So i dont understand anything now.

What kind of diff did you set? I set +100000 for my GPU miners, but they are 8*rx480 each, so about 6+ KH/s. You probably need lower diff for your 2.5 KH/s miners, try 30-40k. With 100k you just might not find enough shares of that difficulty and thus your reported by the pool hashrate is lower than your cards are actually capable of.