Add javax.* packages
philippe at transvirtual.com
Mon Nov 20 10:15:05 PST 2000
well it is not real real-time -:), but rather, the threads are
scheduled within the real-time scheduling class of Linux, which is soft
I don't know when it will be merged in with the OpenVM version, although
this has been announced, so it should be in the near future.
In the mean-time I can send anyone the few files needed for soft
real-time on linux.
I do not have performance benchmarks yet, but I did get a significant
improvemnt on a single benchmark I use which I find to strain the mem
alloc, gc and string manipulation apsects of java performance.
Our ultimate goat at TVT is to have pocketlinux run under pthreads
Optimization Engineer Tel: (510) 527-4025 ext 14
Transvirtual Technologies, Inc., Fax: (510) 559-3287
Berkeley, CA, USA. Email: philippe at transvirtual.com
Erik Hu wrote:
> Hi Philippe Based on RTSJ (www.rtj.org) proposal, I have recently
> modified Kaffe for real-time applications. The previous implementation
> has created a javax.realtime package and modified the Kaffe VM for
> real-time purpose (jthread) under Linux. The modification of Kaffe VM
> includes the priority inheritance protocol, management of
> RealtimeThread and PeriodicThread, and other modifications. In fact,
> the previous version was missing the memory modifications and some
> other classes of the RTSJ specification. I also simplified the
> creation of javax.realtime package into Klasses.jar (Klasses.jar =
> java.lang.* + javax.realtime.*). Now, Cris is going to complete some
> lacking parts of my previous implementation and separate the
> javax.realtime package from Klasses.jar. Could you please tell us your
> current achievement of pthreads porting for Real-time applications ?
> When will the ptherad real-time of Kaffe be merged into traditional
> Open Kaffe VM ? Regards,Erik
> ----- Original Message -----
> From:Philippe Laporte
> To: kaffe at rufus.w3.org
> Sent: Monday, November 20, 2000 4:39 PM
> Subject: Re: Add javax.* packages
> I am very interested in this project. Can you share
> what modifications you made, and what are your goals?
> I have recently done the pthreads soft real-time port of
> Kaffe under linux.
> Thank you,
> Philippe Laporte
> Optimization Engineer Tel: (510) 527-4025 ext 14
> Transvirtual Technologies, Inc., Fax: (510) 559-3287
> Berkeley, CA, USA. Email: philippe at transvirtual.com
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