Monday Oct 05, 2009

Come join the local ISV Engineering team for a special session on Java Real Time System for time-critical applications, with guest Greg Bollella, Distinguished Engineer at Sun Microsystems.

Sun Microsystems YOU'RE INVITED

Technology Transfer Day

Date :
Thursday, October 15th, 2009
Time :
09:00 - 12:00
Location : 
Sun Microsystems
Ackerstein Tower A 8th floor
9 Hamenofim, Herzeliya
Israel
Agenda :
JSR-1 : Real Time Java, Sun's implementation of the specifications and how they provide predictability and determinism to application developed on top of them - Dr. Greg Bollella
Case study : Java RTS application observability and troubleshooting with DTrace - Amit Hurvitz
Parking :
at Ackerstein building. Bring parking ticket with you to stamp it.

To register, please RSVP to jrts-isr-event@sun.com.

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Thursday Sep 24, 2009

This large international System Integrator, where today's proofpoint was carried out, had been using and loving Java as a software language for the comfort of development and maintenance. When the request to build some kind of a system and network management application, involving intensive LAN communication, came from a classified customer, the partner knew the non-deterministic nature of Java SE (though Java 5 and 6 made big improvements in predictability) would not fit the bill. Indeed, the Java Virtual Machine stops application threads for garbage collection and other maintenance tasks so it is not possible to guarantee bounded pauses, especially when the maximal latency allowed for serving requests in this project was in order of tens of millisecond (for worst case scenarios).

That said, Java, as a runtime, can take many forms. Expressive Java FX for rich clients, lightweight Java ME for mobile device, transactional Java EE for enterprise services and real-time Java RTS for deterministic applications. Our partner had no previous experience with Java Real Time but the motivation to stay on Java was so strong that they engaged in a proof-of-concept to evaluate Java RTS 2.1 on Solaris 10. With the support of Sun and our ISV Engineering team…

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Friday Sep 18, 2009

An odd thing happened to me today, my camera was saying my 1GB memory stick was full, but I had only a few dozens of pictures on it. The solution did not occur to me right away so I thought I would bring it up here.

My first reaction was rather Pavlovian, I must admit. Disk full? Alright, I'll delete some files! but clearly, there was no way my few pictures were responsible for the loss of a full giga of disk space :) I then took a more rationale approach of looking at the memory stick info as shown on a Mac (Cmd-I).

Could it be that sectors of the fash memory had gone bad and been disabled? --I do not even know whether this makes any sense but I did ask myself that question. Apparently not, my GB of disk space is there and used by 914MB of stuff. Could it be that I copied data onto the stick without knowing/remembering it? Apparently not, when I open the memory stick inside Apple Finder, all the directories (root, DCIM and MISC) are empty. There's gotta be hidden files! I'm thinking. Since I cannot find some "show hidden files" check-box in the Finder's Properties (Cmd-,), I quickly open a Terminal and cd to the memory stick volume.

It turns out my Mac had been moving to a local trash directory all of the picture files I had copied away and/or deleted (Cmd-Backspace) ever since I switch from a Windows to an Apple laptop. On Windows, the behavior is that files (on removable media) are deleted permanently. I learned today this is not the case on a Mac.

$ cd /Volumes/CYBERSHOT/
$ ls -la
total 384
drwxrwxrwx   1 user      group  16384 Sep 18 18:43 .
drwxrwxrwt@ 11 root      admin    374 Sep 18 18:42 ..
drwxrwxrwx@  1 user      group  32768 Jun 15  2008 .Trashes
-rwxrwxrwx   1 user      group   4096 Jun 15  2008 ._.Trashes
drwxrwxrwx   1 user      group  32768 Sep 18 18:43 .fseventsd
drwxrwxrwx   1 user      group  32768 Jul  2  2006 DCIM
-rwxrwxrwx   1 user      group      0 Jan  1  1970 MEMSTICK.IND
drwxrwxrwx   1 user      group  32768 Jul  2  2006 MISC
-rwxrwxrwx   1 user      group      0 Jan  1  1970 MSTK_PRO.IND
$ du -ks .Trashes
913964  .Trashes
$ rm -r .Trashes


Thursday Sep 10, 2009

"Thanks to Sun technology, we are continuing to bring innovative identity management solutions to market and driving growth."
Hervé Prot, CEO, Symeos

Specialized in Web services security, Symeos provides online identity management, federated authentication services and single sign-on technologies for customers across multiple industries, including banking and finance. With the support of Sun, Symeos has developed a new scalable identity management product called EGO to support the more than 10 million expected users.

Read the whole story at http://www.sun.com/customers/servers/symeos.xml  to learn how the combinaison of Sun systems, storage and software reduced the Symeos development cost by 60%, delivered a 99.999% infrastructure availability and improved Web application server performance by 92%. Symeos is a member of the Sun Startup Essentials program.

Friday Aug 28, 2009

YOU'RE INVITED

Oracle OpenWorld 2009

Come check out new Oracle-on-Sun performance proofpoints at the upcoming Oracle OpenWorld conference, Oct 11-15, Moscone Center, San Francisco.

Agenda and registration details at http://www.oracle.com/openworld/.



For already published performance benchmarks, visit the blog of our sister organization, Sun's Strategic Applications Engineering.

This blog copyright 2009 by Frederic Pariente