Posts tagged Performance

Week in Review – 8 August 2009

Aug 8th

Posted by robert.casto in Java Virtual Machine

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  • Java Tips: Optimizing your Map loop | satukubik
    By Nanda Firdausi
    From my tests, I observe that the performance of the first template depends on the backing object. If we are using HashMap, the performance is less or more the same as the second template. If we are using Hashtable, the performance of …

Java

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Week in Review – 25 July 2009

Jul 25th

Posted by robert.casto in Performance

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  • · Performance considerations while working with Strings and …
    By vogella
    Strings are very frequently used in Java programs. This blog post tries to explain what a programmer needs to consider from a performance point of view. It will also explain in what situations you should use StringBuilder instead of …

Tool

  • · Groovy’s SQL Switch: A Powerful Tool In The Quest For A Truly Real …
    By Jason Kincaid
    …     of the processing costs for the competing technologies below). The new software runs on special Intel boxes, with performance that the company says matches 100 standard SQL servers. For more, you can check out the full product spec sheet here. … Did they have to give it the same name as one of the main dynamic languages for Java? reply · Dan Grossman (@w3roi) – July 23rd, 2009 at 3:19 am PDT. Good to see they’re still going after almost having their code stolen. …

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Week in Review – 18 July 2009

Jul 18th

Posted by robert.casto in Performance

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  • · 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 …

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  • · 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, …
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Week in Review – 11 July 2009

Jul 11th

Posted by robert.casto in Java Virtual Machine

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  • · Glassfish Terracotta Performance?
    By msnuser168
    Then I found the reason is when The threads in SOAP UI exceeed 256. Then some request will fail with “java.net.SocketException:Connection reset”. I am wondering how to configue SUN web server 7 to get better throughput. …. Subject: Re: Glassfish Terracotta Performance? [Up]. ari ophanim. Joined: 05/24/2006 14:23:21. Messages: 629. Location: San Francisco, CA Offline, Not sure I understand this at all. Sorry, but can you explain more about your test and environment? …
  • · Java Logger Memory Leaks
    By Aviad
    Code, Performance Add comments. Recently we switched from Log4J to the java.util.logger package (for this entry it will be called the “Java Logger”). Why, you might wonder, and I don’t have a good reason to give other than the illusion …
  • · Java Performance blog: Eclipse Memory Analyzer, 10 useful tips …
    By Markus Kohler
    Java Performance blog. This is my blog about Java performance related topics. Thursday, July 09, 2009. Eclipse Memory Analyzer, 10 useful tips/articles. The Eclipse Memory Analyzer has been shipped with Eclipse 3.5 Galileo and I planned …

How To

  • · Generating Dump Java Data Files
    Watching the Watchers.org – USA
    by panoskrt Recently I have been running some disk I/O benchmarks, among others, with Java. I needed to check I/O operations performance with plain data …

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