Projects / GCViewer


GCViewer is a Swing-based application that visualizes the verbose garbage collection output generated by the IBM, Sun, HP and BEA Java VMs (-verbose:gc/-Xloggc:-flags). The data can also be exported as CSV for forther processing with a spreadsheet application. Visualizing the data can help when one is tuning the garbage collector, especially the generation sizes and initial heap size.

Operating Systems

Recent releases

  •  28 May 2008 17:13

    Release Notes: This release adds support for IBM iSeries Classic JVM 1.4.2.

    •  22 Jan 2008 18:17

      Release Notes: This release fixes a parse error for CMS concurrent mode failures.

      •  03 Jan 2008 15:17

        Release Notes: A code was added to fix issues for Sun 1.3.1_19 on SunOSa and a whole new reader for J9 5.0 was added. Furthermore, parse issues connected to -XX:+UseParNewGC, -XX:+PrintGCApplicationStoppedTime, and -XX:+PrintGCApplicationConcurrentTime were fixed. Icons were changed.

        •  27 Oct 2006 06:04

          Release Notes: The build scripts were moved from Ant to Maven2. The Jar was compiled with Java 1.4. Also, support for HP-UX 1.4.1 and 1.4.2 was added.

          •  24 May 2006 16:58

            Release Notes: This release adds support for the new -XX:+UseParallelOldGC flag, -XX:+CMSIncrementalPacing, and GC-- promotion failures. Also added was initial support for BEA JRockit 5.0.


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