[Bloat] Initial tests with BBR in kernel 4.9

[Jonathan Morton]

> On 25 Jan, 2017, at 23:31, Hans-Kristian Bakke <hkbakke at gmail.com> 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