Add Nice config option to lower chia processes priority

maded2 / plotng

PlotNG - plotting utility for Chia.Net

Apache License 2.0

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Add Nice config option to lower chia processes priority #62

Open carlosvsilva opened 3 years ago

carlosvsilva commented 3 years ago

Hi. I'm using chia under plotng on a desktop machine, and would welcome an option in config file to give a "nice" priority to chia processes, so that they won't be as heavy penalizers and impact interactive GUI sessions as much. Can you please add this option for a "nice" value (i think they go from 19 to -20), 19 the lowest, and -20 the highest. I'd like to set all chia plotting processes to something like 10 so that the normal 0 priority processes don't get bogged by Chia.

Thanks

giordanidev commented 3 years ago

I second this. Some other scripts already do it and feels smooth to use the computer while plotting.

maded2 commented 3 years ago

Sorry, but this is a Windows Task Manager option, not available to the programming API I am using.

carlosvsilva commented 3 years ago

And in Linux, doesn't it work? I guess there must be some kind of way to specifiy it. Last resort, just invoking "nice chia " will do the job. Thanks.

torrayne commented 3 years ago

I'm not super familiar with process priorities but I found this thread which is for linux. And the documentation of the same thing for Windows.

cmd := exec.Command("chia", args...)

# linux
err = syscall.Setpriority(cmd.Process.id, who int, prio int)

# windows
err = windows.SetPriorityClass(process handle, priorityClass uint32)

Not sure if syscall.Setpriority works for Mac OS or not.