-***mce=ignore_ce*** do not scan for hw errors. Reduce the jitter introduced by periodic runs
-***nosoftlockup*** do not log backtraces for tasks hogging the cpu over some time. This, again, reduces jitter and we do not need the function in our controlled test environment.
-***nmi_watchdog=0*** disables the nmi watchdog on architectures that support it. Esentially disables a non blockable interrup that is used to detect hanging/stuck systems. We do not need this check during our benchmarks. https://medium.com/@yildirimabdrhm/nmi-watchdog-on-linux-ae3b4c86e8d8
-***transparent_hugepage=never*** do not scan for small pages to combine to hugepages. We have no issues with memory usage, spare us of this periodic jitter.
-***processor.max_cstate=1 idle=poll*** do not switch to CPU power saving modes (c-states). Just run all cores at full speed all the time (we do not care about energy during our tests).
-***nohz=on nohz_full=1-7*** disable houskeeping os ticks on our isolated benchmark cores. core 0 will handle these when needed.
-***isolcpus=1-7*** ignores cores 1 to 7 for scheduling processes (expect system processes that are bound to cores).
### Pin all other processes to core 0 (crgoups)
We want to isolate our measurements to cores 1 to 7 and use core 0 for all non benchmark related processes.
isolcpus does some of this during startup (TODO: see if there are issues with task migration if we use isolcpus),
however, we need to configure the system to schedule our threads specifically onto the isolated cores.
cgroups is a tool well suited for this. See the tutorial for further information: https://github.com/lpechacek/cpuset/blob/master/doc/tutorial.txt
Essentially, we can partition our cores into two isolated groups, then map all tasks that can be moved away from
our benchmark cores, to ensure low influence of background tasks. Cgroups also nicely interact with
the real time scheduler, as described here https://www.linuxjournal.com/article/10165, because
they allow to adapt the scheduler to ignore the other cores in its decision making process.