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Enabling NO_HZ_FULL currently has the side effect of enabling callback offloading on all CPUs. This results in lots of additional rcuo kthreads, and can also increase context switching and wakeups, even in cases where callback offloading is neither needed nor particularly desirable. This commit therefore enables callback offloading on a given CPU only if specifically requested at build time or boot time, or if that CPU has been specifically designated (again, either at build time or boot time) as a nohz_full CPU. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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calibrate.c | ||
do_mounts_initrd.c | ||
do_mounts_md.c | ||
do_mounts_rd.c | ||
do_mounts.c | ||
do_mounts.h | ||
init_task.c | ||
initramfs.c | ||
Kconfig | ||
main.c | ||
Makefile | ||
noinitramfs.c | ||
version.c |