kernel_optimize_test/init
Johannes Weiner 7b2489d37e psi: clarify the Kconfig text for the default-disable option
The current help text caused some confusion in online forums about
whether or not to default-enable or default-disable psi in vendor
kernels.  This is because it doesn't communicate the reason for why we
made this setting configurable in the first place: that the overhead is
non-zero in an artificial scheduler stress test.

Since this isn't representative of real workloads, and the effect was
not measurable in scheduler-heavy real world applications such as the
webservers and memcache installations at Facebook, it's fair to point
out that this is a pretty cautious option to select.

Link: http://lkml.kernel.org/r/20190129233617.16767-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-02-01 15:46:24 -08:00
..
calibrate.c
do_mounts_initrd.c Merge branch 'mount.part1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-01-05 13:25:58 -08:00
do_mounts_md.c
do_mounts_rd.c
do_mounts.c
do_mounts.h
init_task.c
initramfs.c initramfs: cleanup incomplete rootfs 2019-01-04 13:13:47 -08:00
Kconfig psi: clarify the Kconfig text for the default-disable option 2019-02-01 15:46:24 -08:00
main.c fork: fix some -Wmissing-prototypes warnings 2019-01-04 13:13:47 -08:00
Makefile
noinitramfs.c
version.c