Oracle Cloud Platform Trial:
Up to 3,500 Free Hours
Back to Oracle Blogs
Consulting Member of Technical Staff
Follow Poonam Parhar
Recent Posts by Poonam Parhar
Wednesday, December 17, 2014
Long Class-Unloading Pauses with JDK8
Recently, I came across a report where a user was facing long GC pauses with JDK8. They didn't see this issue while running with JDK7. The problem with jdk8 was...
Tuesday, November 25, 2014
Increased heap usage with G1 GC
G1 garbage collector is a predictable low pause collector that works efficiently to achieve the low pause time goals. To meet the set pause time goals, G1 tries...
Friday, October 10, 2014
Running on a 64bit platform and still running out of memory
It sounds strange that one is running with 64bit JVM but still running out of native memory or Java Heap space. On a 64bit machine, with 64bit JVM we get almost...
Wednesday, March 19, 2014
About G1 Garbage Collector, Permanent Generation and Metaspace
We received some questions around the G1 garbage collector and the use of Permanent Generation with it. There seems to be some confusionthat the Hotspot JVM...
Saturday, January 4, 2014
UseLargePages on Linux
There is a JVM option UseLargePages (introduced in JDK 5.0u5) that can be used to request large memory pages from the system if large pages memory is supported...
Wednesday, July 31, 2013
Troubleshooting Long GC Pauses
Low pause times during the application run is the most important goal for many enterprise applications, especially forthe transaction-based systems where long...
Monday, June 18, 2012
Understanding G1 GC Logs
The purpose of this post is to explain the meaning of GC logs generated with some tracing and diagnostic options for G1 GC. We willtake a look at the output...
Friday, April 6, 2012
Object Query Language Help
We can use a query language called Object Query Languagewith JHat and Serviceability Agent to query information from Java Heap. Help on this language is...
Friday, April 6, 2012
JRockit hang fix
Fix for the JRockit hang I talked about in my previous
would be available in R28.2.4.
Integrated Cloud Applications & Platform Services
Oracle Content Marketing Login