Re: RT patch acceptance

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how much of a slowdown is it?

distros already throw >20% performance improvements on the floor to simplify their lives by reduceing the number of different binary kernels they have to support.

somehow I don't think a 5% or so (which is the locking overhead of running a SMP kernel on UP last I heard) would be the end of the world for them, especially if it made multimedia eye candy work smoother.

David Lang

 On Tue, 31 May 2005, Andi Kleen wrote:

Date: 31 May 2005 22:01:14 +0200  Tue, 31 May 2005 22:01:14 +0200
From: Andi Kleen <[email protected]>
To: Steven Rostedt <[email protected]>
Cc: [email protected], [email protected], [email protected],
    [email protected], [email protected], Ingo Molnar <[email protected]>,
    Sven-Thorsten Dietrich <[email protected]>,
    James Bruce <[email protected]>, kus Kusche Klaus <[email protected]>,
    Nick Piggin <[email protected]>, Esben Nielsen <[email protected]>,
    "Bill Huey (hui)" <[email protected]>
Subject: Re: RT patch acceptance

On Tue, May 31, 2005 at 12:29:35PM -0400, Steven Rostedt wrote:
I would assume that the distros would ship without PREEMPT enabled
because it was (and probably still is) considered unstable.

In addition to that it is slow too due to much increased locking
overhead.

-Andi
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