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Mining jobs all running on a single core #7941

Closed BigassJohnny closed 3 years ago

BigassJohnny commented 3 years ago

I'm trying to get a mining benchmark on a Dell R900 with 4 Xeon X7460. Build/installation went ok, blockchain sync at 100%. When I start mining, every thread gets scheduled on a single core. The output from 'top' shows one CPU at 2500% load and the other 23 idle. Running one miner thread per core would probably work better but I can't find the right config options. I'd rather not deal with installing a GUI and the requisite X overhead; looking for a command line/config file solution. Monerod version is 0.17.2.0-release; OS is FreeBSD 13.0-RELEASE.

Any suggestions would be appreciated.

hyc commented 3 years ago

You're misinterpreting the "top" output. One CPU core can only yield 100% usage, max. If you're seeing 2500% CPU usage that means it's using at least 25 cores.

BigassJohnny commented 3 years ago

Then how is it that running one thread produces the same 1.3kH/s as running 24?

selsta commented 3 years ago

Try XMRig and check if you have the same issue there.