SMP File system

[Mark Kirkwood]

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>

cheers

Mark