Re: [plug] QNX has gone open source

It still seems that VxWorks is the King of Real Time. Those Mars Rovers puttering around on Mars for the past four years run it. :-) As well as the Mars Express, Venus Express _ Philippine Linux Users' Group (PLUG) Mailing List plug@lists.linux.

Re: [plug] QNX has gone open source

I was testing for jitter although my code outputs the wake up latency. It is easier to see the jitter using the latency values. Jitter accuracy very important on real time systems. In QNX you have consistent 1 microsecond difference between sleeps and on Linux it was 9. At that time DragonFly BSD h

Re: [plug] QNX has gone open source

Pablo Manalastas <[EMAIL PROTECTED]> writes: >>From the graph, it seems to me that for 0-600 sec wake > up latency, QNX has a delay of .001846-.001847 sec, > while for Linux for the same 0-600 sec wake up > latency, Linux has a delay of .001840-001849. I am > not sure how to interpret these graph

Re: [plug] QNX has gone open source

>From the graph, it seems to me that for 0-600 sec wake up latency, QNX has a delay of .001846-.001847 sec, while for Linux for the same 0-600 sec wake up latency, Linux has a delay of .001840-001849. I am not sure how to interpret these graphs, but it looks to me like QNX is quicker at "waking up

Re: [plug] QNX has gone open source

On Wed, 26 Sep 2007 00:12:05 +0800 "Orlando Andico" <[EMAIL PROTECTED]> wrote: > And nobody cares... Partly because it isn't really open source, not in the true sense of the word, as it appears the license is merely a non-commercial free as in beer one, making it unusable for commercial developme

Re: [plug] QNX has gone open source

A bit OT. Two years ago I compared Linux, DragonFlyBSD, NetBSD, OpenBSD and QNX nanosleep() accuracy [1]. I'm not sure if there are any significant improvements with Linux nanosleep(). I didn't use real time patches on Linux because I wanted to test bare kernels.

Re: [plug] QNX has gone open source

Might as well check it out, downloading... :) On 9/26/07, Pablo Manalastas <[EMAIL PROTECTED]> wrote: > > > --- Orlando Andico <[EMAIL PROTECTED]> wrote: > > > And nobody cares... > > http://www.qnx.com/news/pr_2471_1.html > > QNX is a real-time OS, unlike Linux. So you can use it > to monitor pat

Re: [plug] QNX has gone open source

--- Orlando Andico <[EMAIL PROTECTED]> wrote: > And nobody cares... > http://www.qnx.com/news/pr_2471_1.html QNX is a real-time OS, unlike Linux. So you can use it to monitor patients in a hospital, monitor laboratory experiments, view true real-time video playback, etc -- stuff that Linux can't

Re: [plug] QNX has gone open source

On 9/25/07, Orlando Andico <[EMAIL PROTECTED]> wrote: > And nobody cares... > http://www.qnx.com/news/pr_2471_1.html Ahh... the OS with GUI that looks good and fits in a floppy. > Turns out QNX is owned by the same company (Harman International) > which owns the Harman-Kardon, JBL, and Infinity b

[plug] QNX has gone open source

And nobody cares... http://www.qnx.com/news/pr_2471_1.html Turns out QNX is owned by the same company (Harman International) which owns the Harman-Kardon, JBL, and Infinity brands. I actually ran across the QNX announcement while searching for speaker reviews.. But let's not forget, the Canadian