Re: [git pull] RT scheduler updates for tip

From: Ingo Molnar
Date: Mon Dec 08 2008 - 09:33:04 EST



* Gregory Haskins <ghaskins@xxxxxxxxxx> wrote:

> Hi Ingo,
> FWIW, I have placed all my latest upstream-able scheduler patches into
> a branch in my git tree (against tip/master).
>
>
> git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/linux-2.6-hacks.git
> sched/latest
>
> Gregory Haskins (11):
> sched: cleanup inc/dec_rt_tasks
> sched: track the next-highest priority on each runqueue
> sched: use highest_prio.curr for pull threshold
> sched: use highest_prio.next to optimize pull operations
> sched: only try to push a task on wakeup if it is migratable
> sched: pull only one task during NEWIDLE balancing to limit
> critical section
> sched: make double-lock-balance fair
> sched: add sched_class->needs_post_schedule() member
> plist: fix PLIST_NODE_INIT to work with debug enabled
> sched: create "pushable_tasks" list to limit pushing to one attempt
> RT: fix push_rt_task() to handle dequeue_pushable properly
>
> include/linux/init_task.h | 1 +
> include/linux/plist.h | 9 +-
> include/linux/sched.h | 2 +
> kernel/sched.c | 89 +++++++++++--
> kernel/sched_rt.c | 324
> +++++++++++++++++++++++++++++++--------------
> 5 files changed, 312 insertions(+), 113 deletions(-)
>
> These are built/booted on my quad-core/x86_64 and look good to me.
>
> 1) the first four are the "next-highest" v3 patches that I submitted
> yesterday 2) the last seven are patches that Steven has carried in
> 26-rt that have not yet been pulled in to tip
>
> I assume there is an implicit ACK from Steven on (2) since he pulled
> them into -rt. We still await comment from Peter re: (1).

pulled into tip/cpus4096, thanks Gregory!

(It goes into the cpumask tree because it already changed a few areas
that you relied on.)

Ingo
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