Runtime.totalMemory（）从64位jvm中配置的-Xmx值给出了一个错误的值
[英]Runtime.totalMemory() gives me a wrong value from configured -Xmx value in 64 bit jvm
问题描述
Configured -Xmx is 2037m (-Xmx2037), when getting total memory from 
配置-Xmx为2037m（-Xmx2037），从中获取总内存
Runtime.totalMemory() it gives 136mb, How can i get exact configured xmx value? Runtime.totalMemory（）它给出136mb，我怎样才能得到精确配置的xmx值？
2 个解决方案
解决方案1
2 已采纳 2013-01-09 11:25:24
使用Runtime.maxMemory ， Runtime.totalMemory返回当前堆大小。
解决方案2
2 2013-01-09 11:26:57
totalMemory reports the current heap size, which grows only as needed towards the Xmx limit. totalMemory报告当前堆大小，该大小仅在需要时Xmx限制。 maxMemory reports the maximum heap size. maxMemory报告最大堆大小。
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