Re: patch acpi-remove-locking-from-pm1x_sts-register-reads.patchadded to 2.6.28-stable tree

[Greg KH]

On Mon, Feb 09, 2009 at 10:00:10AM -0700, Brown, Len wrote:
> 
> >> why is this -stable material?
> >> this is a performance improvement....
> >
> >It is, and not a bugfix?  If so, I'll drop it.
> 
> yes, removing the un-necessary locking
> it is a scaling performance improvement.
> 
> The code has been this way for years.
> The reason we noticed this issue recently
> is because of the emergence of systems that
> simultaneously have many threads and also
> have deep C-states.
> 
> In 2.6.30 we plan larger improvements in this area.

Ok, I'll go drop this patch from the -stable trees.

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/