I have opened 3 instances in my 4 core intel i5. Is it normal for hasrate to fluctuate? Ive seen 40 h/s and its dropping. I dont know why. I am using my pc but generally not stressing it, just browsing, facebook, or just viewing a livestream, not much. Maybe its the usage and the priority?
Last but not least, I tried opening simpleminer with same commands in another PC, using same address, but it never launched. I guess I have to do same steps setting up a wallet, instead of just running it? I mean synchronizing to network before mining
The hashrate you see on the pool stats is just an estimate, it is approximate and vary but your real hashing should be stable.
If you are using your internet connection a lot, it can affect the connection with the pool.
If your CPU usage goes high, it can affect the mining. If 2 instance of simpleminer.exe are using 50% of CPU, your margin will be 50%. Anytime you'll use over 50%, it will lower the mining hashrate.
When you use the pool, you don't need to download the blockchain. It is only used to check your wallet balance and send your coins from simplewallet.exe
Simpleminer.exe doesn't open with a click. You must use a command line in a bat file or in a command prompt (try the other technique if one doesn't work).
The same exact command will not work on other computer because the path to simpleminer.exe is different from a computer to an other.
In the path there is the name of the user's folder and because we all have a different computer's name, all paths will be different.