I am located in USA but I am mining using a pool in France. The question is, because the pool is overseas does it impact my hashrate ?
I noticed a week ago I was about 1.8-2 KH/s and now I have a miserable 1.3KH/s.
I'm not sure what miner you are using, but if you're using XMR-Stak, one of the better ones at the moment, you can click 'r' to get a report on your submitted work. If you have a low acceptance rate, you are losing your work.
Here's an example from one of my own workers that runs through an SSH tunnel (which adds latency).
RESULT REPORT Difficulty : 18000 Good results : 9233 / 9284 (99.5 %) Avg result time : 105.2 sec Pool-side hashes : 45846000 Top 10 best results found: | 0 | 62213495 | 1 | 54395912 | | 2 | 28981579 | 3 | 28899680 | | 4 | 28802304 | 5 | 26687670 | | 6 | 23322195 | 7 | 16208637 | | 8 | 15118120 | 9 | 13861144 | Error details: | Count | Error text | Last seen | | 9 | Low difficulty share | 2017-06-19 15:55:14 | | 11 | [NETWORK ERROR] | 2017-06-18 15:01:07 | | 31 | Block expired | 2017-06-21 07:07:45 |
As you can see, my "good rate" is 99.5%. This is on a slow CPU which also does a lot of other work and often has CPU power taken away for other tasks.
I've noticed that the hashrate reported by the pools vary a fair bit, so I'm not sure they can be trusted. I calculate my own hashrate by polling the pool API and averaging over 1 hour. I can then compare that to the sum of rates reported by each worker. ('h' key in XMR-Stak.)
It doesn't affect your hardware hashrate, but it could have an impact on your effective hashrate - which is what the pool sees and reports to you. It can't tell what your hardware is doing, but has to estimate it based on how often you submit solved shares for a given difficulty.
When you're mining, you receive a share, run your hardware until you find a solution and submit the solution to the pool who then gives you another share. Now, what does your hardware do during the time the solution is being transmitted to the pool or during the time it's waiting for new work? Nothing.
So, you'd want to minimize this wasted time. You can do some things: