最近我们游戏经常收到玩家投诉卡进度条的问题。而且后台显示执行队列和CPU使用率异常高
根据调用的JDB分析出 使用xbean 时候会调用以下代码
在设置xmlobject 时候会有一个 GlobalLock.acquire();
当多线程并发设置xmlobject 时候造成互相等待这个GlobalLock 造成各个线程卡住,队列执行效率不高
所以我们目前解决方法就是直接用string 拼接成XML 暂时不用xbean 的功能
public final XmlObject set(XmlObject src)
{
if (isImmutable()) {
throw new IllegalStateException("Cannot set the value of an immutable XmlObject");
}
XmlObjectBase obj = underlying(src); TypeStoreUser newObj = this; if (obj == null)
{
setNil();
return this;
} if (obj.isImmutable()) {
set(obj.stringValue());
}
else {
boolean noSyncThis = preCheck();
boolean noSyncObj = obj.preCheck(); if (monitor() == obj.monitor())
{
if (noSyncThis) {
newObj = setterHelper(obj);
}
else {
synchronized (monitor()) {
newObj = setterHelper(obj);
} } }
else if (noSyncThis)
{
if (noSyncObj)
{
newObj = setterHelper(obj);
}
else
{
synchronized (obj.monitor()) {
newObj = setterHelper(obj);
}
}
}
else
{
if (noSyncObj)
{
synchronized (monitor()) {
newObj = setterHelper(obj);
} } boolean acquired = false;
try
{
GlobalLock.acquire();
acquired = true; synchronized (monitor())
{
synchronized (obj.monitor())
{
GlobalLock.release();
acquired = false; newObj = setterHelper(obj);
}
}
}
catch (InterruptedException e)
{
throw new XmlRuntimeException(e);
}
finally
{
if (acquired) {
GlobalLock.release();
}
}
} } return (XmlObject)newObj;
}