From: Noah Lavine <noah.b.lavine@gmail.com>
To: eactors@aol.com
Cc: 14672@debbugs.gnu.org
Subject: bug#14672: QT port for ARM within guile
Date: Fri, 21 Jun 2013 09:42:10 -0400 [thread overview]
Message-ID: <CA+U71=Ny6J9K3dfzx7UAB+YoT8UnpF-PU+JUUHAKb1-EJ5Az-A@mail.gmail.com> (raw)
In-Reply-To: <8D03C5DA0E1DCD7-1900-6DB1@webmail-d222.sysops.aol.com>
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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@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@gmail.com>
> To: eactors <eactors@aol.com>
> Cc: 14672 <14672@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@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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next prev parent reply other threads:[~2013-06-21 13:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 7:07 bug#14672: QT port for ARM within guile eactors
2013-06-20 21:24 ` Noah Lavine
2013-06-21 6:13 ` eactors
2013-06-21 13:42 ` Noah Lavine [this message]
2013-06-21 21:29 ` Mark H Weaver
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