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What is Your Operating System of Choice? | Log In/Create an Account | Top | 91 comments | Search Discussion
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  • (Score: 0) by Anonymous Coward on Thursday April 24, @04:36PM (1 child)

    by Anonymous Coward on Thursday April 24, @04:36PM (#1401400)

    Setting CPU governor to powersave is easy but it might not work. During a really long compile the heat will build up and a fanless system can't clear it out. You can't cool a CPU with hot air.

    Lowering the CPU thermal throttle temperature will probably help more, which you can do with the ryzenadj tool.

    Realistically though, a fanless system just isn't a great choice for long sustained workloads. For silent, the best approach is water cooling open loop with a big radiator and fans that can throttle down to silent speed. Not really viable for a laptop but gives you silent 90% of the time and max performance (and still not very loud) the other 10% of the time.

  • (Score: 0) by Anonymous Coward on Thursday April 24, @10:49PM

    by Anonymous Coward on Thursday April 24, @10:49PM (#1401422)

    It is a tradeoff. Lowering the CPU using ryzenadj vs the governor should affect the same settings under load. The difference is powersave is simpler at the expense of not having to do too much tuning and experimentation. Coming up with a complete thermal profile would be best. In the end, the solution will probably include a mix of hardware and kernel tuning. Right now, the APU is cooking itself, which means the throttling is already being exceeded. At a minimum the APU is signaling the platform to shutdown (either hard or soft) and it is a sign that the maximum junction temp is being exceeded and therefore lowered. That means that the built-in cooling profile is unreliable and that the kernel probably needs to get involved by actively cooling through injected idle loops.