Re: Cyclic Scheduling for linux

From: George Anzinger (george_at_mvista.com)
Date: 10/30/03

  • Next message: Stephen Hemminger: "[PATCH] Fix for ipx interface module_get panic." 
    Date:	Thu, 30 Oct 2003 13:01:55 -0800
To: First Name <linuxquestasu@yahoo.com>

    First Name wrote:
    > Hi there,
    >
    > I am working on providing a cyclic scheduling policy
    > to the current non real time version of the linux to
    > support hard real time tasks as part of one of my
    > projects. This policy should be able to support
    > aperiodic, periodic and sporadic tasks too. Could any
    > one pour some light on how to go about achieving it?.
    >
    > Any Helpful tips, project reports, links or advices
    > are greatly appreciated.

    Instead of kernel changes, you might want to consider a user monitor task
    running at high rt priority which changes the priority of the tasks you want to
    use the new policy. You could write an intercept routine for the scheduleset*
    calls and pass the new policy to the monitor. More thought would be needed to
    make it inherit across a fork..

    -g
    >
    > Thanks and Regards,
    > LQ
    >
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    -- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
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  • Next message: Stephen Hemminger: "[PATCH] Fix for ipx interface module_get panic."

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