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A Work in Progress

When you execute "java ..." you get some number of garbage collection (GC) threads. If you want to know how many GC threads, you can execute java...

Thursday, September 29, 2016 | Java | Read More

The Unspoken - The Why of GC Ergonomics

Do you use GC ergonomics, -XX:+UseAdaptiveSizePolicy, with the UseParallelGC collector? The jist of GC ergonomics for that collector isthat it tries to grow or...

Friday, June 28, 2013 | Java | Read More

The Unspoken - Application Times

Sometimes it is interesting to know how long your application runs between garbage collections. That can be calculated from theGC logs but a convenient way to...

Thursday, April 18, 2013 | Java | Read More

The Unspoken - CMS and PrintGCDetails

What follows is an example of the GC logging output with CMS (UseConcMarkSweepGC) and PrintGCDetails plus some explanation of the output. The "CMS-initial-mark"...

Wednesday, February 13, 2013 | Java | Read More

The Unspoken - Phases of CMS

CMS (-XX:+UseConcMarkSweepGC) or the concurrent mark sweep GC could have been called the mostly concurrent mark sweep GC and here's why. These are the phases of...

Monday, February 11, 2013 | Java | Read More

Really? iCMS? Really?

When I use the term iCMS, I'm referring to the incremental mode of CMS (-XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode). This is a mode ofCMS where the...

Tuesday, November 1, 2011 | Java | Read More

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