From: Valentin Schneider <[email protected]> To print the schedule debug information, users need to set sched_debug cmdline or enable it by sysfs entry.
Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Adrian Freund <[email protected]> Signed-off-by: Valentin Schneider <[email protected]> Signed-off-by: Barry Song <[email protected]> --- Documentation/scheduler/sched-domains.rst | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/Documentation/scheduler/sched-domains.rst b/Documentation/scheduler/sched-domains.rst index 55983b7e1098..8582fa5e9170 100644 --- a/Documentation/scheduler/sched-domains.rst +++ b/Documentation/scheduler/sched-domains.rst @@ -74,6 +74,8 @@ for a given topology level by creating a sched_domain_topology_level array and calling set_sched_topology() with this array as the parameter. The sched-domains debugging infrastructure can be enabled by enabling -CONFIG_SCHED_DEBUG. This enables an error checking parse of the sched domains -which should catch most possible errors (described above). It also prints out -the domain structure in a visual format. +CONFIG_SCHED_DEBUG and adding 'sched_debug' to your cmdline. If you forgot to +tweak your cmdline, you can also flip the /sys/kernel/debug/sched_debug +knob. This enables an error checking parse of the sched domains which should +catch most possible errors (described above). It also prints out the domain +structure in a visual format. -- 2.25.1
