本文整理汇总了Java中sun.hotspot.WhiteBox.fullGC方法的典型用法代码示例。如果您正苦于以下问题：Java WhiteBox.fullGC方法的具体用法？Java WhiteBox.fullGC怎么用？Java WhiteBox.fullGC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.fullGC方法的4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) {
WhiteBox wb = WhiteBox.getWhiteBox();
StringBuilder sb = new StringBuilder();
sb.append("1234x"); sb.append("x56789");
String str = sb.toString();
if (wb.isInStringTable(str)) {
throw new RuntimeException("String " + str + " is already interned");
}
str.intern();
if (!wb.isInStringTable(str)) {
throw new RuntimeException("String " + str + " is not interned");
}
str = sb.toString();
wb.fullGC();
if (wb.isInStringTable(str)) {
throw new RuntimeException("String " + str + " is in StringTable even after GC");
}
}
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 {
WhiteBox wb = WhiteBox.getWhiteBox();
wb.youngGC();
assertTrue(wb.g1StartConcMarkCycle());
while (wb.g1InConcurrentMark()) {
Thread.sleep(5);
}
wb.fullGC();
assertTrue(wb.g1StartConcMarkCycle());
while (wb.g1InConcurrentMark()) {
Thread.sleep(5);
}
assertTrue(wb.g1StartConcMarkCycle());
}
示例3: main
import sun.hotspot.WhiteBox; //导入方法依赖的package包/类
public static void main(String[] args) {
int numGCs = Integer.parseInt(args[0]);
// Perform the requested amount of GCs.
WhiteBox wb = WhiteBox.getWhiteBox();
for (int i = 0; i < numGCs - 1; i++) {
wb.youngGC();
}
if (numGCs > 0) {
wb.fullGC();
}
}
示例4: main
import sun.hotspot.WhiteBox; //导入方法依赖的package包/类
public static void main(String[] args) throws InterruptedException{
WhiteBox wb = WhiteBox.getWhiteBox();
LinkedList<Object> garbageAndRefList = new LinkedList<Object>();
// Creating a 1M large byte array. Since the test specifies the heap
// region size to be 1m this will be a humongous object. We then
// store a pointer to the array in the static object to keep it live
// during the whole test.
humongous_reference_holder = new LargeRef(new byte[1 * 1024 * 1024]);
// Create some garbage and a reference to the humongous object each round.
for (int i = 0; i < 32; i++) {
garbageAndRefList.add(new byte[400*1000]);
garbageAndRefList.add(new LargeRef(humongous_reference_holder.ref()));
// Promote to old, goal is to get rem-set entries for the humongous
// object from different regions. The test specifies MaxTenuringThreshold=0,
// this will make sure we get objects promoted to old at once.
wb.youngGC();
}
// Clear the garbage and reference list.
garbageAndRefList.clear();
// Run a concurrent mark cycle to mark all references but the static one as dead.
wb.g1StartConcMarkCycle();
while (wb.g1InConcurrentMark()) {
Thread.sleep(100);
}
// Run a young collection to make sure humongous object still can't be eagerly reclaimed.
wb.youngGC();
// Will crash/assert if humongous object has been reclaimed.
wb.fullGC();
}