linux-kernel - Re: Student Project Ideas

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Message-ID: <75b66ecd0703292217p269248e7l9d15c929394751e0@mail.gmail.com>
Date:	Fri, 30 Mar 2007 01:17:06 -0400
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Russ Meyerriecks" <datachomper@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Student Project Ideas

On 3/29/07, Russ Meyerriecks <datachomper@...il.com> wrote:
> Hi all,
>   I've been hacking on the Linux kernel all semester for my OS:
> Internals class. We are given full autonomy in picking our final
> programming project and I would love for mine to be /useful/ for the
> Linux kernel and not just a theoretical exorcise. If anybody has any
> bug fixes or features maybe they never got around to, and would be
> suitable for this situation, I would love to hear about them.

You could try to get scheduling latency down into the 1-2ms range
without resorting to kernel preemption.  rt_secret_rebuild is the main
problem - it does not take any spinlocks, and is not a hot path, but
runs in softirq context and is thus non-preemptible.  Even if you
don't succeed you'll acquire a deep knowledge of the networking code.

Lee
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