SMP File system
Kris Kennaway
kris at obsecurity.org
Sat Nov 19 11:38:12 PST 2005
On Sat, Nov 19, 2005 at 11:14:59AM +1300, Mark Kirkwood wrote:
> Jesse Scott wrote:
> >Is the new SMP friendly file system for FreeBSD 6.0 enabled by default
> >or is there something that must be done to enable it?
> >
>
> Yeah, you have it by default, it's all about the VFS layer not being
> under the GIANT lock (as much). From the 6.0 release notes:
>
> <quote>
> Fine-grained locking to allow much of the VFS stack to run without the
> Giant lock has been added. This is enabled by default on the alpha,
> amd64, and i386 architectures, and can be disabled by setting the loader
> tunable (and sysctl variable) debug.mpsafevfs to 0.
> </quote>
Also sparc64.
Kris
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