I am mining Monero offline using ./monerod --ofline on a Windows 10 Pro virtual machine with 2 VCUs in Microsoft Azure.
Mining is performed in M2SYS using the start_mining command with 2 threads (this is the maximum).
I use show_hr to view the hash rate.
The initial hash rate average was 65 h/s. I left it running overnight and noticed that at somepoint the hashrate dropped to 17 h/s. This was an instant drop and not a general tapering off.
I am trying to understand why this drastic hash rate fall has happened? I initially thought this could be an issue with cloud hosting when a session is not active however this makes no sense to me as most servers run efficiently without a user being logged in in an active session.
I have since used stop_mining and start_mining 2 to restart mining. However, the hashrate is still much lower than when I first started yesterday. Any ideas? Could this be a timing coincidence with a general change in the monero hashrate - if so, how do I comfirm this?