It looks like the "Web Content" Child process of my instance of firefox is limited to 25% CPU utilization during heavy loads. I have yet to see it be allowed to exceed this. Is there any way I can modify a setting somewhere to allow the browser to max out my CPU if it needs the resources? I tried setting the priority to high and using cpulimit to set the CPU limit to 25%. I'm thinking this has something to do with cgroups but I don't know where the default configuration is for firefox. I'm on a Debian machine.
It looks like any process spawned by an unprivileged user is limited to 25% CPU usage.
topthen maybe you're in the wrong mode. Using Solaris mode when you expect Irix can easily create an impression a single-threaded process is limited while in reality it takes 100% of one core. – Kamil Maciorowski Apr 05 '21 at 22:51