Author Archives: Eric Caspole
5 minutes work for up to 5% more Hadoop performance
Lately we have been working on studying and trying to improve the performance of Apache Hadoop. In the spring my coworker Shrinivas Joshi created a great Hadoop tuning reference poster: http://blogs.amd.com/developer/2011/07/12/apache-hadoop-performance-tuning-methodologies-and-best-practices-%E2%80%93-a-downloadable-reference-guide/ This week I made a pleasant discovery that would … Continue reading
Better uptime for long running Java applications
In January 2010 we submitted a new change to OpenJDK to overcome a long standing problem in the HotSpot JVM, that is that there was no mechanism in the JVM to recover if the code cache of compiled Java methods … Continue reading
