On Thu, 10 Aug 2023 at 05:00, Thorsten Glaser <t.glaser@xxxxxxxxx> wrote: > > On Thu, 10 Aug 2023, Cedric Blancher wrote: > > >We're experiencing rather very bad latency spikes on busy Linux > >systems, for example if one machine is the jumphost (ssh -J) for a few > >hundred connections, while at the same time handles CPU intensive > >tasks. > > > >Would RT/Linux SCHED_FIXED or SCHED_RR be of help in such a case, e.g. > > Did you already check the old and tried method of nice(2)? > > If the other load is CPU-intensive, this is usually sufficient. nice or renice did NOT help to reduce the latency spikes. Also, I think nice(2) is to govern scheduler priorities, but does little to improve latency Ced -- Cedric Blancher <cedric.blancher@xxxxxxxxx> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
