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Date: Sat, 1 Oct 2005 04:11:25 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Ansar Mohammed <ansarm@gmail.com>
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Cc: freebsd-questions@freebsd.org, 'Kris Kennaway' <kris@obsecurity.org>
Subject: Re: BGL
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On Fri, Sep 30, 2005 at 11:58:14PM -0400, Ansar Mohammed wrote:
> I love FreeBSD. I have been using it since 2.x. I have never had any
> problems with it. Rock Solid. Never a single kernel panic.
>=20
> Then I come across this article in a comparison between Linux and FreeBSD
> saying that FreeBSD has kernel locking issues. Specifically, a problem
> nicknamed BGL or Big Giant Lock. It seems that it affects SMP systems und=
er
> high load.

Sounds like a pretty simplistic summary, but as I mentioned it's out
of date anyway.

> How much do other OSes suffer from this?

I think NetBSD and OpenBSD still use such a system for their SMP
support.

Kris

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