GNU bug report logs - #14672
QT port for ARM within guile

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From: Noah Lavine <noah.b.lavine <at> gmail.com>
To: eactors <at> aol.com
Cc: 14672 <at> debbugs.gnu.org
Subject: bug#14672: QT port for ARM within guile
Date: Fri, 21 Jun 2013 09:42:10 -0400

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I'm afraid I don't know anything about it then. I doubt it's in Guile now.

Best,
Noah


On Fri, Jun 21, 2013 at 2:13 AM, <eactors <at> aol.com> wrote:

>  QT stands for QuickThreads, and in some cases is a massive speed
> improvement. There was a technical paper on this back in the 94 called
> "Tools and Techniques for Building Fast Portable Thread Packages".
> On an x86-architecture this speeds up SystemC by a factor of 40 (Linux
> Ubuntu). And I believe it will increase the arm speed by at least 500% for
> my use case. Since the content switch isn’t that big for the arm having
> less registers to save compared to the x86.
> So QT should always be considered if available, but somehow it seems to
> pass into oblivion.
> Cheers
> eactor
>
>
>  -----Original Message-----
> From: Noah Lavine <noah.b.lavine <at> gmail.com>
> To: eactors <eactors <at> aol.com>
> Cc: 14672 <14672 <at> debbugs.gnu.org>
> Sent: Thu, Jun 20, 2013 11:25 pm
> Subject: Re: bug#14672: QT port for ARM within guile
>
>  Hello,
>
>  Excuse my ignorance, but what is a "QT"? I can tell you're not referring
> to the widget toolkit.
>
>  Also, I believe Guile uses pthreads on most platforms, so if you're
> running Linux on ARM (which is the common case on ARM nowadays, I think),
> you should have threads. Unless you want userspace threads.
>
>  Best,
> Noah
>
>
>  On Thu, Jun 20, 2013 at 12:07 AM, <eactors <at> aol.com> wrote:
>
>>   Hello,
>> I found a quick thread implementation for ARM within the guile svn: (
>> http://git.savannah.gnu.org/gitweb/?p=guile.git;a=tree;f=qt;h=c98346f9299df235964738dbf4b87da9806c9f52;hb=72e4a3b1df86fdfca752221716c3e3f5573ff6a5
>>
>>  Hope you can help me with this. Do you know what the status of this
>> port was? Did it work? I would like to add a QT for ARM into the SystemC
>> Open Source Project and I’m looking for a good starting point.
>>
>> Many Thanks in advance
>> eactor
>>
>>
>
>

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