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Date:      Wed, 15 Jan 2003 23:02:39 -0500 (EST)
From:      Jeff Roberson <jroberson@chesapeake.net>
To:        Bosko Milekic <bmilekic@unixdaemons.com>
Cc:        Julian Elischer <julian@elischer.org>, Jeff Roberson <jeff@FreeBSD.org>, <cvs-committers@FreeBSD.org>, <cvs-all@FreeBSD.org>
Subject:   Re: cvs commit: src/sys/sys proc.h src/sys/kern sched_4bsd.c
Message-ID:  <20030115225940.X52297-100000@mail.chesapeake.net>
In-Reply-To: <20030113154600.C53755@unixdaemons.com>

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On Mon, 13 Jan 2003, Bosko Milekic wrote:

> > "The" new scheduler?
>
>   Which new scheduler?  I realize I may have missed a lot of
>   discussion... I'd like to catch up now, where did the discussion
>   happen?
>

I have been writing a new scheduler off and on for several months now.
That was the motivation behind the sched_* api.  I intend to finish it up
and get it commited for 5.1.  It supports the following buzz words: ;-)

 - O(1) operation
 - Per cpu run queues
 - CPU binding
 - CPU affinity

In addition, I have a nice tool for testing various scheduler behavior.  I
have used this to prove that nice, for example, does the same thing with
my scheduler as it did with the old one.  I will probably commit this tool
as well.  It runs on linux and I have some interesting datapoints from the
linux scheduler.  I'll write this up at some point.

Cheers,
Jeff


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