Hi Ingo,
The following repositories
git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/linux-2.6-hacks.git tip/sched/devel/rtbalance
ftp://ftp.novell.com/dev/ghaskins/tip-rt-fixes.tar.bz2
apply to tip/sched/devel to pick up the following fixes for the RT
scheduler.
---
Gregory Haskins (5):
sched: create "pushable_tasks" list to limit pushing to one attempt
sched: add sched_class->needs_post_schedule() member
sched: make double-lock-balance fair
sched: pull only one task during NEWIDLE balancing to limit critical section
sched: only try to push a task on wakeup if it is migratable
include/linux/init_task.h | 1
include/linux/sched.h | 2 +
kernel/sched.c | 37 +++++++-----
kernel/sched_rt.c | 139 ++++++++++++++++++++++++++++++++++++++-------
4 files changed, 143 insertions(+), 36 deletions(-)
--
These patches were developed in the interest of shorting latencies in
PREEMPT_RT, but they apply to the mainline scheduler as well, so I am
offering them here first.
This has been tested under both 26.3-rt3 and tip/sched/devel on x86_64 for
both CONFIG_SMP and !CONFIG_SMP.
Comments/bug-fixes welcome!
Regards,
-Greg
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