linux-kernel - A Correct Design of a multi cpu/core rt application

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Message-ID: <5d96567b0701041256n616a4a5bn3948c2d3c3e673d@mail.gmail.com>
Date:	Thu, 4 Jan 2007 22:56:02 +0200
From:	"Raz Ben-Jehuda(caro)" <raziebe@...il.com>
To:	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: A Correct Design of a multi cpu/core rt application

Hello

I am trying to implement a (soft) real time kthread on a dual cpu
machine. Basic design is very simple, the kthread  binds
to cpu 1 sets itself to a high real time priority and never releases this
cpu. Whenever it needs to wait a little I use the assembler pause command.
The operating system should be running on cpu 0.

Yet I have 3 problems:

1. Rcu never unlocks ( dentry starvation ).

2. I cannot ssh to the machine when this kthread is runing. This has to
   do some how with events workqueue.

3. What about all other kthreads,workqueue,tasklets in the system ? aio,md,
   can I simply un-invoke them ?

Is there an easy way to do it ?
Is there a framework to do it ?

thank you
raz

-- 
Raz
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