gc overhead limit exceeded eclipse

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Eclipse will throw GC overhead limit exceeded error when it runs out of memory, normally while performing memory-consuming operations such as building workspace on big projects.

- See more at: http://docs.oseems.com/general/application/eclipse/fix-gc-overhead-limit-exceeded#sthash.VO6sefn8.dpuf

"if too much time is being spent in garbage collection: if more than 98% of the total time is spent in garbage collection and less than 2% of the heap is recovered, an OutOfMemoryError will be thrown."

jvm gc行为中超过98%以上的时间去释放小于2%的堆空间时会报这个错误。

http://docs.oseems.com/general/application/eclipse/fix-gc-overhead-limit-exceeded

另一种处理方法：

在jvm启动参数中添加 "-XX:-UseGCOverheadLimit"，该参数在JDK6中默认启用("-XX:+UseGCOverheadLimit")。

　　调整后的生产环境中使用的参数为：　　　

JAVA_OPTS='-Xms512m -Xmx4096m -XX:MaxPermSize=128m -XX:-UseGCOverheadLimit -XX:+UseConcMarkSweepGC'

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