Subject: Re: PROBLEM: Only 2 of 4 cores used on IBM Cell blades and no threads shown in spufs

From: Dennis Schridde <[email-masked]>
Date: Tue, 23 Apr 2013 15:16:53 +0200

Hello!

Am Dienstag, 23. April 2013, 13:51:55 schrieb Dennis Schridde:
> Am Tue, 23 Apr 2013 19:12:47 +1000
> schrieb Michael Ellerman <[email-masked]>:
> > On Mon, Apr 22, 2013 at 06:44:13PM +0200, Dennis Schridde wrote:
> > For me it is fixed by applying the following patch, it should be in
> > v3.10:
> I am currently compiling the patched kernel. Will report back with the
> results later.

Thanks! The patch has the intended result on my Linux 3.8.8 kernel. All 4 CPU 
cores are now being used and the cellminer hashrate went up from 42Mh/s to 
62Mh/s (with 2 PPE and 16 SPE threads, just as before).

Could it be backported, especially to 3.8?

Again - thanks for your work and quick reply,
Dennis