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Posted to dev@poi.apache.org by bu...@apache.org on 2009/10/15 09:17:02 UTC

DO NOT REPLY [Bug 47999] New: PATCH: OpenXML4j OPCPackage calls Runtime.getRuntime().gc() which is considered a perfomance bottleneck

https://issues.apache.org/bugzilla/show_bug.cgi?id=47999

           Summary: PATCH: OpenXML4j OPCPackage calls
                    Runtime.getRuntime().gc() which is considered a
                    perfomance bottleneck
           Product: POI
           Version: 3.5-FINAL
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: POI Overall
        AssignedTo: dev@poi.apache.org
        ReportedBy: marcus@thiesen.org


OpenXML4j causes a lot of unnecessary garbage collection on our system
which leads to performace losses.

Apparently, according to the latest JavaDoc [1], a call to
Runtime.getRuntime().gc() causes a full heap garbage collect, which
isn't what you usually want in any longer running application. The
runtime knows when to garbage collect.


[1]: http://java.sun.com/javase/6/docs/api/java/lang/Runtime.html#gc()

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DO NOT REPLY [Bug 47999] PATCH: OpenXML4j OPCPackage calls Runtime.getRuntime().gc() which is considered a perfomance bottleneck

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47999

Nick Burch <ni...@torchbox.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #2 from Nick Burch <ni...@torchbox.com> 2009-10-16 06:37:32 UTC ---
Thanks for this patch, I've applied it to trunk. Do shout if you find any more
performance things like this!

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DO NOT REPLY [Bug 47999] PATCH: OpenXML4j OPCPackage calls Runtime.getRuntime().gc() which is considered a perfomance bottleneck

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47999

--- Comment #1 from Marcus Thiesen <ma...@thiesen.org> 2009-10-15 00:18:33 UTC ---
Created an attachment (id=24380)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=24380)
Patch to remove Call

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