2017-06-12 10:39 GMT+02:00 Francois Tigeot <[email protected]>: > Thanks Luca! > > With the help of dillon@, I noticed the first core of my Skylake laptop was > being pegged by acpi interrupts: > > [systat -pv 1 output] > timer ipi extint user% sys% intr% idle% smpcol > cpu0 238 11 25316 0.0 51.1 48.1 0.8 0 > > [vmstat -i output] > interrupt total rate > acpi0 89216043 23348 > > Setting a much lower treshold for misbehaving interrupts made the laptop > usable. These are the sysctls I used: > > kern.livelock_lowater=1000 > kern.livelock_limit=2000 > > It's far from perfect though and power usage is still excessive; I'll try > to learn more about the acpi subsystem in order to find out what exactly > is going wrong here. >
Hi Francois, thank you, I'll try soon. I was also wandering if this fix: https://gitweb.dragonflybsd.org/dragonfly.git/commit/a1c669c2dd93fe4b582a517eef04068310bc789b could mitigate those powersaving issues. Luca
