[Buildroot] Upgrading from Buildroot 0.10 to 2009.08 (ARM)

[Joachim Pihl]

On Sat, 07 Nov 2009 11:10:19 +0100, Peter Korsgaard <jacmet at uclibc.org>  
wrote:

>>>>>> "Joachim" == Joachim Pihl <jpihl at nevion.com> writes:
>
> Hi,
>
>  Joachim> Doesn't look good to me, will revert to previous tool chain to
>  Joachim> have a look at what it says then. In the old buildroot, we had
>  Joachim> the threads library set to linuxthreads, but I have changed
>  Joachim> that to NPTL. Could that be the culprit?
>
> Yes, NTPL support in uclibc is still very much work in progress.

Just before I left work yesterday, I discovered that the uclibc .config  
(inherited from previous project) had "use linuxthreads" set, while  
buildroot had NPTL set. The mismatch here could be what we are looking for?

I would much prefer NPTL if it works, since our applications are heavily  
multithreaded (for architecture clarity reasons, among other things), and  
I suspect that some of the performance issues we have could be caused by  
context switch/scheduling latency.

-- 
Joachim Pihl
Senior R&D Engineer
Nevion

Tel: +47 33 48 94 66
Fax: +47 33 48 99 98
Mobile: +47 91 33 98 91
jpihl at nevion.com
www.nevion.com

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