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JProfiler v6.0.4 (10-06-18)
...v6.0.3 (10-04-02)
...v6.0.2 (10-01-14)
...v6.0 (09-11-13)
...v5.2.2 (09-06-23)
...v5.2.1 (09-02-13)
...v5.1.4 (08-06-13)
...v5.1.2 (08-04-18)

代码分析软件JProfiler正式发布v6.1

已经是本类第一个产品 下一个英特尔 VTune 性能分析器 Windows 版

	JProfiler [产品编号： 10743 ]
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JProfiler是唯一一款获过奖的Java剖析器。JProfiler直观的用户界面能够帮助你找到性能瓶颈,并指明你的内存漏洞和解决线程问题。

界面预览 Interface Preview

功能描述 About Feature

JProfiler支持以下操作模式：

	本地会话实时分析模式用户一旦定义好了其应用程序启动方式，JProfiler即能对之进行设置，用户即刻便能从设置好的JVM中看到实时数据。用户若不想进行会话配置，其可以从多个IDE插件中选择其最喜欢的那个对应用程序进行配置。
	远程会话实时分析模式通过修改Java开始命令行方式的VM参数，用户可使任意Java应用程序监听来自的JProfiler GUI的连接。该设置程序不但可以在本地计算机上运行，还可以在网络中作为某个设置程序的附加程序使用。此外，JProfiler还提供了相当多的集成向导，可用于主流的可以帮助用户安装和设置其应用程序的应用程序服务器。
	离线分析模式用户无需通过JProfiler GUI连接应用程序即可对之进行设置。在离线设置模式下，用户可以使用功能强大的JProfiler触发系统或者JProfiler' API对设置代理进行控制，然后将快照保存入磁盘。稍后用户便可使用命令行导出工具或者蚂蚁任务导出工具，在JProfiler GUI或编程方式的设置导出视图中打开这些快照。
	快照比较在JProfiler中，用户可以将当前的所有设置数据保存为一个快照存入磁盘中。JProfiler提供了丰富的比较功能以对比两个或者多个快照之间的不同。用户可从编程的命令行比较工具和ant task比较工具中选择其一创建对比报告。
	查看HPROF快照 JProfiler能打开用JVM工具（比如jconsole、 jmap或通过-XX:+HeapDumpOnOutOfMemoryError JVM参数触发）创建的HPROF快照文件

The following list gives a high level overview of the profiling views in JProfiler:

Memory profiling

JProfiler's memory view section offers dynamically updated views on memory usage and views that show information about allocations spots. All views have several aggregation levels and can show live and garbage collected objects.

	All objects Shows classes or packages of all objects on the heap with instance counts and size information. You can mark current values and show differences.
	Recorded objects Shows classes or packages of all recorded objects. You can mark current values and show differences.
	Allocation call tree Shows a call tree or methods, classes, packages or Java EE components with annotated allocations of selected classes.
	Allocation hot spots Shows a list of methods, classes, packages or Java EE components that allocate selected classes. You can mark current values and show differences. The tree of backtraces can be shown for each hot spot.
	类追踪器通过图片方式的时间轴显示选定类的调用次数。

Heap walker

In JProfiler's heap walker you can take a snapshot of the heap and drill down to objects of interest by performing selection steps. The heap walker has five views:

	Classes Shows all classes and their instances.
	Allocations Shows allocation tree and allocation hot spots for recorded objects.
	最大的对象其能显示收集的系统垃圾中造成栈拥堵的最大的对象。支配树能在适当的地方进行扩展以显示这些被保留的对象。
	References Shows a graph of references for individual objects and offers a "show path to garbage collector root" functionality. Also offers cumulated views for incoming and outgoing references.
	Data Shows instance and class data for individual objects.
	Time Shows a time-resolved histogram of recorded objects.

CPU profiling

JProfiler offers various ways to record the call tree to optimize for performance or detail. The thread or thread group as well as the thread status can be chosen for all views. All views can be aggregated on a method, class, package or Java EE component level. The CPU view section contains:

	Call tree Shows a cumulated top-down tree of all recorded call sequences in the JVM. JDBC, JMS and JNDI service calls are annotated into the call tree. The call tree can be split for different request URL to a servlet or JSP. You can mark methods for "exceptional method run recording" and see the slowest invocations separatly.
	Hot spots Shows the list of the most time consuming methods. The tree of backtraces can be shown for each hot spot. Hotspots can be calculated for method calls, JDBC, JMS and JNDI service calls, as well as for URL invocations.
	Call graph Shows a graph of call sequences starting from selected methods, classes, packages or Java EE components.
	方法统计其能通过一个调用时间分配图显示所有方法的调用时间的统计信息，这可以用于标出异常。
	Call tracer Shows recorded chronological traces for method calls grouped by thread, package and class.

线程配置

JProfiler为线程配置提供了以下视图：

	线程历史以时间轴显示线程活动和线程状态
	线程监控显示所有当前有效线程极其当前活动状态
	线程转储用户可以转储多个线程并在该视图模式下对之进行分析

监控配置

JProfiler为线程配置提供了以下视图

	当前锁定图以图表形式显示JVM中所有当前处于等待和堵塞的情况
	当前监控显示所有目前在使用的监控以及与之相关的线程
	历史锁定图以图表形式显示有历史记录的所有等待以及拥堵情况
	监控历史显示有记录的历史等待和拥堵事件
	监控使用统计显示按照监控，线程和监控类分类的的统计情况

VM telemetry

To observe the internal state of your JVM, JProfiler offers various telemetry views:

	Heap Shows a timeline with a graph of the used heap and the heap size.
	Recorded objects Shows a timeline with a graph of live objects and arrays that have been recorded.
	吞吐量记录以带图片的时间轴方式显示对象创建率和记录的对象的垃圾回收率
	GC activity Shows a timeline with a graph of garbage collector activity.
	Classes Shows a timeline with a graph of loaded classes.
	Threads Shows a timeline with a graph of active threads.
	CPU负载以带图片的时间轴显示由配置程序生成的CPU负载情况

更新时间:8/11/2011 | 录入时间:4/26/2006 | 编辑:zhuhm | 审核:xiaoy

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