> On 25 Jan, 2017, at 23:31, Hans-Kristian Bakke <[email protected]> wrote: > > kvm-clock is a paravirtualized clock that seems to use the CPUs TSC > capabilities if they exist. But it may not be perfect:
The key capability sch_fq needs for pacing is to generate timer interrupts at precise, sub-millisecond intervals. TSC doesn’t provide that; it’s just a register inside the CPU which can be read efficiently on demand. It is however possible that kvm-clock provides that capability via the underlying HPET hardware. - Jonathan Morton _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
