Some sched sysctl's are missing in RHEL9. Why?

Solution Verified - Updated -

Issue

  • Some sched sysctl's are missing in RHEL9. Why?
  • sysctl -a does not show following sched subsystem sysctl's on RHEL9 which were tunable via sysctl on RHEL8.
kernel.sched_latency_ns
kernel.sched_migration_cost_ns 
kernel.sched_min_granularity_ns 
kernel.sched_nr_migrate 
kernel.sched_tunable_scaling 
kernel.sched_wakeup_granularity_ns

Environment

  • Red Hat Enterprise Linux 9.

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