java虚拟机常见的错误 -- gc overhead limit exceeded

根据sun官方的说法是：“if too much time is being spent in garbagecollection: if more than 98% of the total time is spent in garbagecollection and less than 2% of the heap is recovered, anOutOfMemoryError will

TheSnowBoy_2

1202人浏览 · 2016-07-15 14:08:58

TheSnowBoy_2 · 2016-07-15 14:08:58 发布

根据sun官方的说法是：

“if too much time is being spent in garbagecollection: if more than 98% of the total time is spent in garbagecollection and less than 2% of the heap is recovered, anOutOfMemoryError will be thrown.”

意思是如果有98%的时间用来回收小于2%的堆空间时，会出现这个错误。

这个错误个人认为，是为了从时间效率角度来度量的，告诉人们这样做效率太低，需要优化。

本人产生这个问题的原因在于：

在 for 循环中，调用了system.gc()这个方法来进行垃圾回收。

解决这个问题的办法是：

在jvm启动参数中添加"-XX:-UseGCOverheadLimit"