RVP a écrit : > On Fri, 5 Feb 2021, Mike Pumford wrote: > >> I think estd might need some reworking for the now hugely multi-core >> processors in modern systems as average CPU is no longer a useful >> way to make an optimum performance decision on a multi-core system. >> > > I run estd not for power-saving, but to keep the CPU temperature > low (which it does lower--by ~5 C :)). As for its function, I think > what it does is better done in the kernel than by a userland program. > > On the whole, estd is not very useful, either to keep the CPU cool > or to save a whole lot of power (in my case, I don't use the laptop > off the charger--it functions like a desktop): see the CAVEATS > section of acpicpu(4).
In my case, I only use estd to reduce CPU frequency. This system acts as a main server with a lot of disks. When its i7 runs at 3400 MHz, CPU temperature doesn't exceed 40°C as it is cooled by a huge Noctua fan.