Hello. On Wed, Nov 10, 2021 at 12:13:57PM +0100, Felix Moessbauer <felix.moessbauer@xxxxxxxxxxx> wrote: > However, I was not able to see any latency improvements when using > cpuset.cpus.partition=isolated. Interesting. What was the baseline against which you compared it (isolcpus, no cpusets,...)? > The test was performed with jitterdebugger on CPUs 1-3 and the following cmdline: > rcu_nocbs=1-4 nohz_full=1-4 irqaffinity=0,5-6,11 intel_pstate=disable > On the other cpus, stress-ng was executed to generate load. > [...] > This requires cgroup.type=threaded on both cgroups and changes to the application > (threads have to be born in non-rt group and moved to rt-group). But even with isolcpus the application would need to set affinity of threads to the selected CPUs (cf cgroup migrating). Do I miss anything? Thanks, Michal
