Weblogs

SPECjvm2008 released!: A new battlefield for Java performance!
Posted by Henrik Stahl (hstahl) on May 07, 2008 at 11:57 PDT | Comments (6)  

Real-time Java at LiqudityHub: LiquidityHub leverages WebLogic Real Time for high volume low latency transaction processing.
Posted by Henrik Stahl (hstahl) on March 18, 2008 at 02:54 PDT | Comments (0)  

JRockit + Eclipse = TRUE: New Update Site, public Bugzilla and an opportunity to meet us at EclipseCon. Can it get any better?
Posted by Henrik Stahl (hstahl) on March 14, 2008 at 00:46 PDT | Comments (1)  

Tips and tricks for dealing with a fragmented Java heap: Techniques for decreasing and/or alleviating the effect of heap fragmentation
Posted by Henrik Stahl (hstahl) on December 18, 2007 at 06:07 PDT | Comments (0)  

How fragmented is my Java heap?: Using the JRockit Runtime Analyzer to get base statistics on heap usage.
Posted by Henrik Stahl (hstahl) on December 11, 2007 at 02:06 PDT | Comments (7)  

Configuring JRockit Mission Control to work through a firewall: How to use a custom JMX agent to get JRMC to work through a firewall
Posted by Henrik Stahl (hstahl) on November 16, 2007 at 03:00 PDT | Comments (0)  

BEA videos on YouTube: A movie clip says more than a thousand words
Posted by Henrik Stahl (hstahl) on November 15, 2007 at 00:12 PDT | Comments (0)  

Insights from the JVM factory: Juicy tidbits for Java developers
Posted by Henrik Stahl (hstahl) on October 03, 2007 at 12:38 PDT | Comments (0)  

SPECjbb2005 results from the Intel Tigerton launch: Fastest x86 server for Java to date
Posted by Henrik Stahl (hstahl) on September 06, 2007 at 00:41 PDT | Comments (2)  

Network Computing on the Liquid VM: Java in a virtual world
Posted by Henrik Stahl (hstahl) on August 17, 2007 at 12:53 PDT | Comments (0)  

A second look at Java 6 performance: Comparing JRockit to Sun HotSpot
Posted by Henrik Stahl (hstahl) on August 07, 2007 at 07:33 PDT | Comments (5)  

JRockit R27.3 and JRockit Mission Control 3.0 are GA: Bug fixes, better performance and a brand new latency analyzer tool
Posted by Henrik Stahl (hstahl) on July 02, 2007 at 11:42 PDT | Comments (1)  

Another happy JRockit user: Weka on JRockit is Weka on steroids
Posted by Henrik Stahl (hstahl) on June 11, 2007 at 00:22 PDT | Comments (6)  

Using JRockit for Development: Do not be surprised to find JRockit a good JVM for use during development
Posted by Henrik Stahl (hstahl) on May 14, 2007 at 00:22 PDT | Comments (1)  

Are you using JRockit for development? Upgrade!: Why upgrading to a newer JRockit can improve your development experience
Posted by Henrik Stahl (hstahl) on April 18, 2007 at 02:02 PDT | Comments (7)  

JRockit for Java SE 6 is GA: What's hot in the new JRockit
Posted by Henrik Stahl (hstahl) on April 11, 2007 at 12:08 PDT | Comments (2)  

Everything You Always Wanted To Know About JRockit Mission Control: But Were Afraid To Ask
Posted by Henrik Stahl (hstahl) on April 03, 2007 at 04:26 PDT | Comments (0)  

The Biggest JVM Ever!: How large did you say...?
Posted by Henrik Stahl (hstahl) on March 28, 2007 at 04:05 PDT | Comments (1)  

Vote for JRockit and Mission Control!: JRockit for president!
Posted by Henrik Stahl (hstahl) on March 28, 2007 at 02:14 PDT | Comments (0)  

Multi-core may be good for Java!: Investigating GC scalability on multi-core CPUs, and some other thoughts
Posted by Henrik Stahl (hstahl) on December 15, 2006 at 01:32 PDT | Comments (3)  

SPECjbb2005 results from the Intel "Clovertown" launch: More processing power for your dual-CPU servers than you would have dreamed of a year ago.
Posted by Henrik Stahl (hstahl) on November 28, 2006 at 00:56 PDT | Comments (1)  

Performance Tip: Tuning Memory Allocation, Part 2 - Prefetching: Why, when and how to use the -XXallocPreftetch and -XXallocRedoPrefetch flags with JRockit
Posted by Henrik Stahl (hstahl) on November 20, 2006 at 08:54 PDT | Comments (0)  

Summer 2006 benchmark roundup: A summary of this summer's SPECjbb2005 submissions on 4P servers, and a look back that reveals an amazing year.
Posted by Henrik Stahl (hstahl) on September 04, 2006 at 19:06 PDT | Comments (0)  

Help! JRockit hangs on my Linux!: If you have issues with JRockit on your Linux installation, it may be due to a broken OS. Here is some advice for checking your Linux.
Posted by Henrik Stahl (hstahl) on August 14, 2006 at 10:12 PDT | Comments (0)  

Wow...that's a BIG number!: SGI submits new world record SPECjbb2005 results using JRockit and the recently released Itanium "Montecito" chip.
Posted by Henrik Stahl (hstahl) on July 18, 2006 at 12:24 PDT | Comments (1)  

JRockit 1.4.2 & 5.0 R26.4 released: Announcing the latest JRockit R26.4 release
Posted by Henrik Stahl (hstahl) on July 14, 2006 at 14:37 PDT | Comments (0)  

JRockit JavaOne presentations on dev2dev: Optimizations for 64-bit Java, low pausetime GC and how to run JRockit without an OS!
Posted by Henrik Stahl (hstahl) on July 14, 2006 at 02:57 PDT | Comments (0)  

Performance Tip: Using numactl to Control CPU and Memory Affinity: The numactl command allows you to control process locality on a NUMA system. Used properly, it can increase application throughput and decrease GC pause times of your java application.
Posted by Henrik Stahl (hstahl) on June 13, 2006 at 05:04 PDT | Comments (0)  

Performance Tip: Tuning Memory Allocation: Why, when and how to use the -XXtlasize and -XXlargeobjectlimit flags with JRockit.
Posted by Henrik Stahl (hstahl) on June 07, 2006 at 08:18 PDT | Comments (4)  

New JRockit-based SPECjbb2005 records by Dell!: This week brought Java performance to new heights through results on the new Intel "Woodcrest" architecture. The Java performance of these systems using JRockit is nothing short of amazing!
Posted by Henrik Stahl (hstahl) on May 25, 2006 at 07:30 PDT

JRockit and the DLJ license: Sun's new Java license for the Linux distributors has attracted a lot of attention. What does it mean for JRockit?
Posted by Henrik Stahl (hstahl) on May 22, 2006 at 00:56 PDT | Comments (1)  

JRockit-powered Mustang!: Findings from a recent visit to the JRockit factory.
Posted by Henrik Stahl (hstahl) on May 10, 2006 at 04:37 PDT | Comments (2)  

Thread stack dump analysis tool: I recently came across this neat tool for analyzing thread stack dumps.
Posted by Henrik Stahl (hstahl) on May 08, 2006 at 03:48 PDT | Comments (1)  

What would you do with 450 GB of...heap?: We frequently get asked how much heap you can use with JRockit. The answer is - more than you need.
Posted by Henrik Stahl (hstahl) on May 04, 2006 at 12:27 PDT | Comments (8)  

Benchmarking Java: Don't forget warmup!: To get the most out of your Java application, you must let the JVM warm up. This is certainly true when benchmarking.
Posted by Henrik Stahl (hstahl) on April 24, 2006 at 08:26 PDT | Comments (2)  

New SPECjbb2005 World Record with JRockit!: A new set of SPECjbb2005 results put Silicon Graphics firmly in the lead with impressive JRockit/Itanium-based scores, beating competitors by ~50% or more in terms of performance and price/performance. Complemented by low-end publications by other server vendors, this demonstrates the performance advantage of using JRockit - around 20% on otherwise similar or identical configurations.
Posted by Henrik Stahl (hstahl) on April 13, 2006 at 05:46 PDT | Comments (1)  

Truly unbelievable cool stuff: The spontaneous reaction of a user who had found what the JRockit Runtime Analyzer has to offer and a very good summary of the feature set!
Posted by Henrik Stahl (hstahl) on March 22, 2006 at 11:22 PDT | Comments (0)  

JRockit for Solaris now GA!: The BEA JRockit team has now released the GA version of its Solaris/SPARC port. Try it out!
Posted by Henrik Stahl (hstahl) on February 01, 2006 at 03:47 PDT | Comments (4)  

New SPECjbb2000 and SPECjbb2005 records with JRockit: Over the last month, a large set of record-breaking SPECjbb2000 and SPECjbb2005 results have been published using JRockit. While it is as always hard to make apples-vs-pears comparisons, the results still show that configurations using JRockit beat configurations using other JVMs by 20-30%.
Posted by Henrik Stahl (hstahl) on January 27, 2006 at 01:06 PDT | Comments (0)  

How to get (almost) 3 GB heap on Windows!: The current JRockit 5.0 release is limited in how much Java heap it can allocate on Windows. The upcoming JRockit 5.0 R26 have increased the maximum heap size on Windows to almost 3 GB, approximately one GB more than any other JVM the JRockit team has tested.
Posted by Henrik Stahl (hstahl) on December 06, 2005 at 04:44 PDT | Comments (9)  

JRockit is the world's fastest JVM!: BEA claims that JRockit is the world's fastest JVM, based on comparisons run on indentical hardware. Sun tries to refute this claim in a recent blog entry, but their logic is faulty.
Posted by Henrik Stahl (hstahl) on September 29, 2005 at 06:24 PDT | Comments (0)