本文整理汇总了Java中jdk.nashorn.internal.ir.debug.ClassHistogramElement类的典型用法代码示例。如果您正苦于以下问题：Java ClassHistogramElement类的具体用法？Java ClassHistogramElement怎么用？Java ClassHistogramElement使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ClassHistogramElement类属于jdk.nashorn.internal.ir.debug包，在下文中一共展示了ClassHistogramElement类的3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: printMemoryUsage
import jdk.nashorn.internal.ir.debug.ClassHistogramElement; //导入依赖的package包/类
private static void printMemoryUsage(final String phaseName, final FunctionNode functionNode) {
LOG.info(phaseName + " finished. Doing IR size calculation...");
final ObjectSizeCalculator osc = new ObjectSizeCalculator(ObjectSizeCalculator.getEffectiveMemoryLayoutSpecification());
osc.calculateObjectSize(functionNode);
final List<ClassHistogramElement> list = osc.getClassHistogram();
final StringBuilder sb = new StringBuilder();
final long totalSize = osc.calculateObjectSize(functionNode);
sb.append(phaseName).append(" Total size = ").append(totalSize / 1024 / 1024).append("MB");
LOG.info(sb);
Collections.sort(list, new Comparator<ClassHistogramElement>() {
@Override
public int compare(ClassHistogramElement o1, ClassHistogramElement o2) {
final long diff = o1.getBytes() - o2.getBytes();
if (diff < 0) {
return 1;
} else if (diff > 0) {
return -1;
} else {
return 0;
}
}
});
for (final ClassHistogramElement e : list) {
final String line = String.format(" %-48s %10d bytes (%8d instances)", e.getClazz(), e.getBytes(), e.getInstances());
LOG.info(line);
if (e.getBytes() < totalSize / 200) {
LOG.info(" ...");
break; // never mind, so little memory anyway
}
}
}
示例2: printMemoryUsage
import jdk.nashorn.internal.ir.debug.ClassHistogramElement; //导入依赖的package包/类
private void printMemoryUsage(final FunctionNode functionNode, final String phaseName) {
if (!log.isEnabled()) {
return;
}
log.info(phaseName, "finished. Doing IR size calculation...");
final ObjectSizeCalculator osc = new ObjectSizeCalculator(ObjectSizeCalculator.getEffectiveMemoryLayoutSpecification());
osc.calculateObjectSize(functionNode);
final List<ClassHistogramElement> list = osc.getClassHistogram();
final StringBuilder sb = new StringBuilder();
final long totalSize = osc.calculateObjectSize(functionNode);
sb.append(phaseName).
append(" Total size = ").
append(totalSize / 1024 / 1024).
append("MB");
log.info(sb);
Collections.sort(list, new Comparator<ClassHistogramElement>() {
@Override
public int compare(final ClassHistogramElement o1, final ClassHistogramElement o2) {
final long diff = o1.getBytes() - o2.getBytes();
if (diff < 0) {
return 1;
} else if (diff > 0) {
return -1;
} else {
return 0;
}
}
});
for (final ClassHistogramElement e : list) {
final String line = String.format(" %-48s %10d bytes (%8d instances)", e.getClazz(), e.getBytes(), e.getInstances());
log.info(line);
if (e.getBytes() < totalSize / 200) {
log.info(" ...");
break; // never mind, so little memory anyway
}
}
}
示例3: printMemoryUsage
import jdk.nashorn.internal.ir.debug.ClassHistogramElement; //导入依赖的package包/类
private void printMemoryUsage(final FunctionNode functionNode, final String phaseName) {
if (!log.isEnabled()) {
return;
}
log.info(phaseName, "finished. Doing IR size calculation...");
final ObjectSizeCalculator osc = new ObjectSizeCalculator(ObjectSizeCalculator.getEffectiveMemoryLayoutSpecification());
osc.calculateObjectSize(functionNode);
final List<ClassHistogramElement> list = osc.getClassHistogram();
final StringBuilder sb = new StringBuilder();
final long totalSize = osc.calculateObjectSize(functionNode);
sb.append(phaseName).
append(" Total size = ").
append(totalSize / 1024 / 1024).
append("MB");
log.info(sb);
Collections.sort(list, new Comparator<ClassHistogramElement>() {
@Override
public int compare(final ClassHistogramElement o1, final ClassHistogramElement o2) {
final long diff = o1.getBytes() - o2.getBytes();
if (diff < 0) {
return 1;
} else if (diff > 0) {
return -1;
} else {
return 0;
}
}
});
for (final ClassHistogramElement e : list) {
final String line = String.format(" %-48s %10d bytes (%8d instances)", e.getClazz(), e.getBytes(), e.getInstances());
log.info(line);
if (e.getBytes() < totalSize / 200) {
log.info(" ...");
break; // never mind, so little memory anyway
}
}
}