Thanks for your kind reply. Although i am targeting on ARM architecture moreover for small embedded systems, and I guess RTLinux is not suitable if you want very small footprint Real time operating system. Do you know any Linux which has very small memory footprint?
Next would love to know about large real time systems you have worked on. Actually passionate about real time systems and out of curiosity :). On Mon, Oct 29, 2012 at 5:46 PM, Shantanu Gupta <[email protected]> wrote: > On Mon, Oct 29, 2012 at 5:32 PM, Saurabh Heda <[email protected]>wrote: > >> What kind of Rt systems you have worked on? and which real time operating >> systems (linux based but specific name)? >> Can you provide some example or reference to some links so that i can >> also work on comparing performance and in case of problem can get help from >> you.... >> >> >> >> On Mon, Oct 29, 2012 at 5:23 PM, Shantanu Gupta <[email protected]>wrote: >> >>> On Mon, Oct 29, 2012 at 4:45 PM, Saurabh Heda >>> <[email protected]>wrote: >>> >>>> Hi @Shantanu >>>> >>>> You are correct RT-Linux is one of real time implementation of Linux, I >>>> am talking about implementing it and using it, making application on and >>>> above this RTLinux. How to compare performance of this with non real time >>>> operating system. >>>> >>>> If you have done any work on them please do share your knowledge. >>>> >>>> >>>> On Mon, Oct 29, 2012 at 4:29 PM, Shantanu Gupta <[email protected]>wrote: >>>> >>>>> On Mon, Oct 29, 2012 at 2:23 PM, is3ve4nolege <[email protected] >>>>> > wrote: >>>>> >>>>>> Hi all, >>>>>> Student from IIT Rajasthan (M.Tech). Presently i am working >>>>>> on Real time kernel moreover porting of real time kernels on various >>>>>> embedded architectures, we are looking forward for the novel data >>>>>> structures and algorithms to implement Real time kernel. We are >>>>>> completely >>>>>> migrating our work on Linux and almost did. It has been a great >>>>>> experience >>>>>> to work on Linux platform. >>>>>> I would appreciate it anyone know and have resources and knowledge on >>>>>> "Real time kernel implementation on Linux ". >>>>>> Although new but i love learning gained from Linux blogging on >>>>>> http://www.pg4research.blogspot.in >>>>>> PS share you knowledge on Real time kernel in context of Linux. >>>>>> >>>>>> >>>>>> -- >>>>>> Mailing list guidelines and other related articles: >>>>>> http://lug-iitd.org/Footer >>>>>> >>>>> >>>>> I know this is pretty obvious but have you given a look to linux-rt >>>>> branch ? >>>>> >>>>> -- >>>>> Mailing list guidelines and other related articles: >>>>> http://lug-iitd.org/Footer >>>>> >>>> >>>> -- >>>> Mailing list guidelines and other related articles: >>>> http://lug-iitd.org/Footer >>>> >>> >>> I've worked with a few closed rt systems along with linux but the >>> general pattern is that they're slower than their non-rt counterpart as >>> they have to complete all tasks within their time period and >>> there's awful lot of stuff that goes into ensuring this. >>> >>> As for comparing performance, that would depend on the granularity you >>> require in your research and the hardware available, Most CPUs have cycle >>> counter (TSC in x86, CCNT register in ARM) and if accuracy of that scale in >>> not necessary, gettimeofday will give you granularity of microseconds. >>> >>> -- >>> Mailing list guidelines and other related articles: >>> http://lug-iitd.org/Footer >>> >> >> -- >> Mailing list guidelines and other related articles: >> http://lug-iitd.org/Footer >> > > That would largely depend on which architecture/cpu you are targeting. As > for my projects, I've worked with quite a lot of commercial RTOS and I'm > unsure if I'm allowed to mention them, but as for the open source ones, > there's freeRTOS, RTX from kiel, RTLinux and so on. > > -- > Mailing list guidelines and other related articles: > http://lug-iitd.org/Footer > -- Mailing list guidelines and other related articles: http://lug-iitd.org/Footer
