Morrison, Tom
Cc: Michael Neuling; linuxppc-dev@ozlabs.org
Subject: Re: MSR_SPE - being turned off...
Can you describe the # of processes you are running in your test.
Is
it possible for you to try the tests w/2.6.29 from kernel.org?
- k
On May 6, 2009, at 7:42 AM, Morrison, Tom wrote:
I&
8:44 AM
>> >> To: Morrison, Tom
>> >> Cc: Michael Neuling; linuxppc-dev@ozlabs.org
>> >> Subject: Re: MSR_SPE - being turned off...
>> >>
>> >> Can you describe the # of processes you are running in your test.
Is
>> >> it possible for yo
iginal Message-
>> From: Kumar Gala [mailto:ga...@kernel.crashing.org]
>> Sent: Wednesday, May 06, 2009 8:44 AM
>> To: Morrison, Tom
>> Cc: Michael Neuling; linuxppc-dev@ozlabs.org
>> Subject: Re: MSR_SPE - being turned off...
>>
>> Can you describe the # of p
--
From: Kumar Gala [mailto:ga...@kernel.crashing.org]
Sent: Wednesday, May 06, 2009 8:32 AM
To: Morrison, Tom
Cc: Michael Neuling; linuxppc-dev@ozlabs.org
Subject: Re: MSR_SPE - being turned off...
On May 6, 2009, at 3:31 AM, Morrison, Tom wrote:
Kumar,
What about the case of a context switch (i.e.: when thing
agement), so thank you for any insight you
may have on this front...
Tom
>> -Original Message-
>> From: Kumar Gala [mailto:ga...@kernel.crashing.org]
>> Sent: Wednesday, May 06, 2009 8:32 AM
>> To: Morrison, Tom
>> Cc: Michael Neuling; linuxppc-dev@ozlabs.org
72.
- k
From: Kumar Gala [mailto:ga...@kernel.crashing.org]
Sent: Wed 5/6/2009 12:23 AM
To: Morrison, Tom
Cc: Michael Neuling; linuxppc-dev@ozlabs.org
Subject: Re: MSR_SPE - being turned off...
On May 5, 2009, at 7:42 PM, Morrison, Tom wrote:
The test case we found is under
: MSR_SPE - being turned off...
On May 5, 2009, at 7:42 PM, Morrison, Tom wrote:
> The test case we found is under 'extreme' duress
> (intense loading on an MPC8572)...with many applications
> using A LOT of SPE instructions...
>
>
>
> If you look at
On May 5, 2009, at 7:42 PM, Morrison, Tom wrote:
The test case we found is under 'extreme' duress
(intense loading on an MPC8572)...with many applications
using A LOT of SPE instructions...
If you look at the context switch code (in latest code entry_32.S),
I believe the context swit
of each GPR into these doubles...
We could then re-test and see if this helps?
Tom
>> -Original Message-
>> From: Michael Neuling [mailto:mi...@neuling.org]
>> Sent: Tuesday, May 05, 2009 8:02 PM
>> To: Morrison, Tom
>> Cc: Kumar Gala; linuxppc-dev@ozlabs.o
Ok...taken out...
>> -Original Message-
>> From: Kumar Gala [mailto:ga...@kernel.crashing.org]
>> Sent: Tuesday, May 05, 2009 5:18 PM
>> To: Morrison, Tom
>> Cc: linuxppc-dev@ozlabs.org; Michael Neuling
>> Subject: Re: MSR_SPE - being turned off...
&
> Hi Kumar/Michael...
>
> Sorry, I really didn't explain myself very well...
>
> The Problem (answer to Michael):
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D
> We started using a new compiler that upon -O2 optimization - added
> heavy SPE
On May 5, 2009, at 7:56 AM, Morrison, Tom wrote:
Hi Kumar/Michael...
Sorry, I really didn't explain myself very well...
The Problem (answer to Michael):
We started using a new compiler that upon -O2 optimization - added
heavy SPE related instructions into our
; -Original Message-
>> From: Kumar Gala [mailto:ga...@kernel.crashing.org]
>> Sent: Tuesday, May 05, 2009 7:08 AM
>> To: Morrison, Tom
>> Cc: linuxppc-dev@ozlabs.org
>> Subject: Re: MSR_SPE - being turned off...
>>
>>
>> On May 4, 2009, at 5
On May 4, 2009, at 5:25 PM, Morrison, Tom wrote:
I have both a MPC8548 SBC and MPC8572 system that are running
different flavors of the
same Linux – 2.6.23.
I explicitly am turning it on very early on. Later, I have an
application that is compiled
with SPE instructions (e.g.: evstdd) , and
> I have both a MPC8548 SBC and MPC8572 system that are running different
> flavors of the same Linux - 2.6.23.
>
> I explicitly am turning it on very early on.
Where are you turning this on? In the appication?
> Later, I have an application that is compiled with SPE instructions
> (e.g.: evst
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