Robert Casto Software Developer and Performance Engineer

Info

• New Java 6 Collections « Caught By Java
  By Asim
  Unlike Deque, List also allows us to insert or delete at any location within the list with a high performance cost. ArrayList has a higher cost for insert and delete operation as compared to ArrayDeque, as the portions of the array must …

• Stress tests rain on Amazon’s cloud
  CRN Australia – Australia
  The analysis simulated 2000 concurrent users connecting to services from each of … Net development platform, adapters are being released for Java and PHP …

Announcements

• Justice Dept says OK to Oracle’s $7.4 billion deal for Sun …
  By Jordan Robertson
  Clearance by the Justice Department had been held up over questions about the licensing of Java, a programming language that Sun invented that now runs on more than 7 billion electronic devices around the world, including cell phones … Sun’s performance had been shaky for nearly a decade before Oracle outbid IBM Corp. for the Santa Clara, Calif.-based company in April. IBM is one of Oracle’s biggest database software rivals, and is a major Sun rival in computer servers. …

Posted under Performance, Week in Review

Information

• · java.net: Kirk Pepperdine Interviewed by Janice Heiss
  Janice Heiss interviews Java Champion Kirk Pepperdine about Java performance tuning and more in this java.net Community Corner 2009 podcast, recorded at JavaOne.
• · The Disco Blog » Blog Archive » To recurse or not: Euler challenge #2
  By Andy
  While I implemented problem #1 in Groovy, I thought it would be interesting to solve problem #2 in both Java and Groovy as I wanted to get a good feel for the performance differences between solving Fibonacci via recursion and iteration …
• Architect’s Blog
  By Guy Nirpaz
  New proxy implementation now supports faster fetch times, so that reading objects by their id from local cache is almost as fast as accessing a java.util.ConcurrentHashMap (in Java) or a Dictionary (in .NET). Raw performance of …
• PHP’s Scalability and Performance comparison over Java – Digg model
  By Jiltin
  In addition, many versions of PHP was used in the test, and substantial performance improvements have been made since and are continuing to be made. Here is the article from oreillynet: PHP scales! The word on the street is that “Java …
• Why is Performance Monitoring so hard? – brettdargan.com
  By admin
  Current State – Instantaneous State based; Alerting; Historical Stats; Trace (System > Component > Request) ~ Vertical Profiling through technologies; Profiling – usually technology focused, like Java Profiling; Vital Signs … Production – Under Load Times (batch or interactive); Production – Under Load and component Failures; Dev – Design/Architecture; Dev – Impl time; Test – Environment Issues – ala. Troubleshooting the Integration; Load Test Time; Soak Test Time …
• Amazon Web Services Developer Community Performance Monitoring for …
  Performance Monitoring for Autoscaling. Posted Aug 8 2008 943 AM PDT … As a Java developer I think of JMX which is baked into Java 5 and can be leveraged …

Book

• · AVIRADS-urs always: Java Performance Tuning 2nd edition – Jack Shirazi
  By avirads
  Method profiling can be done by java -Xrunhprof:cpu=samples,thread=y <classname> jhat included in JDK is Java Heap Analysis Tool. The JDK provides two methods for monitoring the amount of memory used by the runtime system. …

Product

• · GigaSpaces’ XAP 7 focuses on performance
  SDTimes.com – San Bruno,CA,USA
  XAP allows Java applications to be provisioned into distributed environments without requiring code changes or separate components for clustering, …

Posted under Performance, Week in Review