Subject: Re: Heads up: x86 changes
To: None <>
From: Greg Oster <>
List: current-users
Date: 09/01/2007 19:38:03
Andrew Doran writes:
> Hi,
> I just merged a bunch of x86 changes into -current from the vmlocking
> branch. I have been running these changes for quite some time and believe
> that they're stable, but I have a limited selection of hardware and apps to
> test with. If stability is a priority then please hold off updating for a
> little while.
> By and large the merge is to reduce diffs but some optimizations have been
> brought over. On a dual core system I'm seeing real time for builds down by
> between 3 to 4% after these changes. With more CPUs I think the impact will
> be greater, especially on amd64 systems.

On a quad-Opteron box I see (w/ -j 16) go from 58-60 minutes
for a full build down to 53-55 minutes.  So about a 8-12% decrease in 
build times... Not too shabby at all :) 

Thanks for working on this!


Greg Oster