Stuart Henderson <stu.li...@spacehopper.org> writes:
> On 2023-10-17, Comète <com...@geekandfree.org> wrote: >> Hi, >> >> Wow ! you're absolutely right ! If I unplug, no lagg anymore. >> So the solution should be to apply your patch and rebuild the kernel ? > > It's certainly worth trying. If you do, please report back here. > I have a particular Lenovo machine (AMD Ryzen-based, though) that routinely suffers from some perf throttling I think (guessing) in the bios or hardware itself. Usually a complete shutdown and plugging and unplugging the power gets it to start working as expected. Until then it's dog slow showing now reason why (pretty sure apm shows a normal cpu frequency and there's no interrupt storm). I would not be surprised if that's the same problem reported here. It happens enough to be mildly annoying, but not enough (and it's not my daily driver) that I have dug into it further beyond just the power cycle. Is it kernel state? Bios? /shrug
