rt.config-fragment

# Enables PREEMPT_RT
CONFIG_PREEMPT_RT=y

# If there is a single task running on a single core that's not doing syscall,
# NO_HZ_FULL will disable process accounting interruption for this process (?)
# That said, there is a timer that causes a kernel task to wake up every 1
# second to do some process-level accounting.
#
# TODO: the above description needs to be checked.
CONFIG_NO_HZ_FULL=y

# TODO: Document why these are selected
CONFIG_HZ_1000=y
# CONFIG_AUFS_FS is not set

# TODO: Document why these are selected
CONFIG_LOCKUP_DETECTOR=n
CONFIG_DETECT_HUNG_TASK=n

# Disable certificates for building
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_SYSTEM_TRUSTED_KEYS is not set
# CONFIG_SYSTEM_REVOCATION_LIST is not set

# Enable more tracer in ftrace
# Disabled for now as documentation says overhead increases in the kernel, but
# I'm not sure if overhead increases even if these are not enabled dynamically,
# only compiled in statically.
# CONFIG_IRQSOFF_TRACER=y
# CONFIG_PREEMPT_TRACER=y