Ladies and gentlemen,
I’ve set up a VM mining node under Ubuntu with 8 virtual cores CPU (host have the same) and 4Gb memory
It was written that memory requirement is 700 Mb per core.
However, my virtual machine uses just 2 Gb memory from 4Gb (including OS) and swap is 100% free.
In theory zcashd should use 8x700Mb=5600Mb
Is that OK?
PS: Mining works, I mined 2 blocks so far
Unless you’ve changed the genproclimit in your configuration file, you’re probably mining with one core.
Thank you!
Does speed increase linear with amount of cores?
Or 8 cores give less than 8x performance?
Strange, I set genproclimit, mining eats much more memory, cpu load = 700%, however benchmark when gen=0 still works on 1 core and cpu load =100%.
used benckmark:
~/zcash/src/zcash-cli zcbenchmark solveequihash 10
Solve Equihash runs by default on a single thread, you can add more with a thread argument:
time solveequihash NUM_ITERS [NUM_THREADS]
More info here: How do i check my hashrate? - #40 by daira
LOL! 4 cores were 2 times slower than 1 core. 120sec vs 50 sec averages
The proof of work used by the Zcash miner is designed to consume memory bandwidth so that a system’s memory bandwidth becomes the limiting factor rather than the system’s processors. Beyond one or two cores, extra cores are just competing for a resource that isn’t available.
The multithread benchmark does not work. Just check 1 thread.