On Wed 19-04-23 08:44:23, Andrew Theurer wrote: > > On Apr 19, 2023, at 6:15 AM, Marcelo Tosatti <mtosatti@xxxxxxxxxx> wrote: > >> Andrew Theurer, can you please explain what problem is the vmstat_work > >> interruption causing in your testing? > > > > +CC Andrew. > > Nearly every telco we work with for 5G RAN is demanding <20 usec CPU > latency as measured by cyclictest & oslat. We cannot achieve under 20 > usec with the vmstats interruption. Are you able to get those latency requirements with PREEMPT_RT? -- Michal Hocko SUSE Labs