Messages in this thread | | | From | Gregory Haskins <> | Subject | [PATCH v2 0/6] Series short description | Date | Tue, 26 Aug 2008 13:34:44 -0400 |
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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 fixes for the RT scheduler.
[ Changelog:
v2: *) predicated newidle and double_lock changes on CONFIG_PREEMPT to address a concern by Nick Piggin
*) fixed a build issue when DEBUG_PI_LIST is defined
v1: *) initial release ]
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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Gregory Haskins (6): sched: create "pushable_tasks" list to limit pushing to one attempt plist: fix PLIST_NODE_INIT to work with debug enabled 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/plist.h | 9 ++- include/linux/sched.h | 2 + kernel/sched.c | 84 ++++++++++++++++++++++++--- kernel/sched_rt.c | 139 ++++++++++++++++++++++++++++++++++++++------- 5 files changed, 202 insertions(+), 33 deletions(-)
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