本文整理汇总了Java中sun.hotspot.WhiteBox.allocateMetaspace方法的典型用法代码示例。如果您正苦于以下问题:Java WhiteBox.allocateMetaspace方法的具体用法?Java WhiteBox.allocateMetaspace怎么用?Java WhiteBox.allocateMetaspace使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sun.hotspot.WhiteBox
的用法示例。
在下文中一共展示了WhiteBox.allocateMetaspace方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: main
import sun.hotspot.WhiteBox; //导入方法依赖的package包/类
public static void main(String [] args) throws Exception {
if (args.length != 1) {
throw new IllegalArgumentException("Usage: <MetaspaceSize>");
}
WhiteBox wb = WhiteBox.getWhiteBox();
// Allocate past the MetaspaceSize limit.
long metaspaceSize = Long.parseLong(args[0]);
long allocationBeyondMetaspaceSize = metaspaceSize * 2;
long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize);
// Wait for at least one GC to occur. The caller will parse the log files produced.
GarbageCollectorMXBean cmsGCBean = getCMSGCBean();
while (cmsGCBean.getCollectionCount() == 0) {
Thread.sleep(100);
}
wb.freeMetaspace(null, metaspace, metaspace);
}
示例2: main
import sun.hotspot.WhiteBox; //导入方法依赖的package包/类
public static void main(String [] args) throws Exception {
if (args.length != 2) {
throw new IllegalArgumentException("Usage: <MetaspaceSize> <YoungGenSize>");
}
WhiteBox wb = WhiteBox.getWhiteBox();
// Allocate past the MetaspaceSize limit
long metaspaceSize = Long.parseLong(args[0]);
long allocationBeyondMetaspaceSize = metaspaceSize * 2;
long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize);
long youngGenSize = Long.parseLong(args[1]);
triggerYoungGCs(youngGenSize);
wb.freeMetaspace(null, metaspace, metaspace);
}