Setting to limit the parallel build job count

I would like the ability to limit the number of build jobs. CLion is becoming unresponsive during and build and stays this way sometimes for up to a minute after a build. This is on an Ubuntu VM with 8 cores. I find that CLion is often consuming about 200% of my CPUs but the default cmake command is also trying to use all 8 cores ( -j 8 ). I assume setting the max jobs to be NumberOfCpuCores - 2 would make the whole system more responsive.

Another issue is the RAM pressure from all of the c++ processes in addition to the added Java process.

Thanks,
-allen