Kris Kennaway kris at
Sat Oct 1 01:11:29 PDT 2005

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Sounds like a pretty simplistic summary, but as I mentioned it's out
of date anyway.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

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