JProfiler

Simple Jprofiler setup not working

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm trying to get a simple, localhost session of JProfiler up and running. I've created the session, the host is 127.0.0.1, the port is the default 8849, and I've pointed the startup/shutdown commands to my local tomcat installation startup.sh/shutdown.sh. I click OK and I get "Connecting to 127.0.0.1:8849" and after 150 seconds (I modified the timeout) it times out and says: Could not connect to 127.0.0.1:8849. Please make sure that the remote address is correct, the remote program is started properly, and the network route allows socket

How to connect JProfiler to an application running on localhost?

匿名 (未验证) 提交于 2019-12-03 01:39:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have an application running on my localhost and I want to profile the application to see how can I enhance the performance of the application. I am doing the setup steps as defined but it is not able to connect to localhost server, is there a proper step by step guideline available on how to: Configure JProfiler to work with application running on localhost? How to profile and what areas to look for while profiling for an application? Configure JProfiler with Eclipse IDE, right now am able to see profile in run dropdowns in eclipse but

性能测试三十九:Jprofiler分析CPU过高和响应时间长的问题

匿名 (未验证) 提交于 2019-12-02 23:05:13
使用Jprofiler监控分析案例 一、cpu负载过高:http://localhost:8080/PerfTeach/CpuTopServlet?id=1 cpu消耗高的可能原因 1、使用了复杂的算法,比如加密、解密 2、压缩、解压、序列化等操作 3、代码bug,比如死循环 dstat监控起来,先看一下资源是否正常,用5个并发跑60秒 CPU:100% TPS才几百,肯定就有问题 TOP:JAVA占的CPU最多 查看进程,是tomcat 使用jprofiler查看,很明显有个自己写的userToString方法占了19% 打开代码看那个方法:里面有使用Gson对json的转换 json转换组件:Gson、jackson、fastjson,三个组件各有优势,但是从从性能方面来说,Gson性能最差 所以直这个情况只能换组件,fastjson性能最好,建议使用fastjson 二、响应时间长:http://1localhost:8080/PerfTeach/TimeMonitor?id=1 使用jprofiler的方法耗时统计功能,可以统计出每个方法的耗时 CPU不高 响应时间300多毫秒,有些慢了,需要优化,一般小于100毫秒,性能算是不错的了,100--500之间,算一般的,500以上,就是很差的 由于没有经过Nginx,所以直接查看tomcat日志里面的响应时间

jprofiler性能查找问题工具,java大名鼎鼎的分析神器

匿名 (未验证) 提交于 2019-12-02 21:52:03
开启的时候影响性能,找问题用的。 数据库、mongdb、jstack、jvm都能监控 1、windows版本默认安装jprofiler_windows_9_1_1.exe 即可; 2、linux版本/home rz下上传jprofiler_linux_9_1_1.rpm chmod +x jprofiler_linux_9_1_1.rpm rpm -ivh jprofiler_linux_9_1_1.rpm 默认安装在了 /opt 目录下 3、/home/server/tomcat1/bin 目录下 vi catalina.sh 添加 -agentpath:/opt/jprofiler9/bin/linux-x64/libjprofilerti.so=port=8849,nowait 总的:JAVA_OPTS="-Xms256m -Xmx256m -Xmn128m -Xss256k -XX:PermSize=32m -XX:MaxPermSize=32m -Dcom.sun.management.jmxremote.port=10086 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Djava.rmi.server.hostname=192

IDEA操作——JProfiler

纵然是瞬间 提交于 2019-12-02 15:52:33
1、是什么?来用干嘛的?   一个商业授权的Java剖析工具。   用来剖析程序内存、CPU使用情况,找到性能瓶颈,快速定位问题所在。 2、IDEA安装JProfiler插件   (1)File -> Settings -> Plugins 点击Marketplace输入“JProfiler” 点击下载    安装完重启IDEA即可。   (2)安装Profiler for windows版本     https://download-gcdn.ej-technologies.com/jprofiler/jprofiler_windows-x64_11_0_2.exe     自行安装,不多累述。   (3) 安装完成后,在IDEA进行配置到安装的Windows版的profiler上。     指定安装好的profiler.exe即可。不知道路径在哪,在桌面的JProfiler右击属性可以看到文件目录。 3、JProfiler插件的使用 (1)使用JUnit进行重复测试   当我们使用JUnit进行单元测试的时候,Configuration上会显示当前进行的测试方法或方法集的配置:   选择编辑Configuration即可配置运行次数,可选项为一次、指定次数、重复至失败停止和重复至手动停止。   启动JProfiler时,会出现如图所示需要选择的界面,按照需求选择

How to find memory leak in java using JProfiler?

帅比萌擦擦* 提交于 2019-12-01 16:59:54
How to find memory leak in java using JProfiler? I have been working in JProfiler for the past 1 week to find memory leak in a web application. I read some manuals and see some articles, it says see the memory usage in all objects and allocated objects views and using the allocation hot spot you can find the memory leak. I looked into it and found lot of memory used by char, string, bytes. Since i am a fresher i don't know how to figure this and solve the memory leak. Please help me over this .. Thanks in advance... See this screen cast about finding memory leaks with JProfiler. 来源: https:/

How to find memory leak in java using JProfiler?

爱⌒轻易说出口 提交于 2019-12-01 15:17:43
问题 How to find memory leak in java using JProfiler? I have been working in JProfiler for the past 1 week to find memory leak in a web application. I read some manuals and see some articles, it says see the memory usage in all objects and allocated objects views and using the allocation hot spot you can find the memory leak. I looked into it and found lot of memory used by char, string, bytes. Since i am a fresher i don't know how to figure this and solve the memory leak. Please help me over this

Profiling Mule Container and Application using JProfiler

喜夏-厌秋 提交于 2019-12-01 12:49:27
I am trying to profile Mule ESB apps deployed on a mule container(CE v3.4) using Jprofiler but have been unsuccessful this far. My Mule server is running remotely on a linux 64 bit server and the jprofiler is running on my local windows machine. I am trying to remotely connect the jprofiler running on my local windows machine to the Mule server running remotely on a linux server, but till now I have failed to connect the local running jprofiler to the remotely running Mule server. Has somebody done this before? What are the steps to be followed to connect my jprofiler running locally to Mule

堆内存溢出排查

隐身守侯 提交于 2019-12-01 12:03:55
生成hprof文件 ①,top出异常进程 ②,生成异常进程的dump文件 jmap -dump:format=b,file=[文件名] [进程] jmap -dump:format=b,file=heap.hprof 2576 ③,使用JProfiler分析hprof 文件 使用JProfiler分析大对象 ①,导入:session->open snapshot ②,查看大对象:Heap Walker -> Current Object Set ->Giggest Object 来源: https://www.cnblogs.com/wanhua-wu/p/11684716.html

JProfiler集成在eclipse中(转)

本秂侑毒 提交于 2019-12-01 04:37:16
版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。 本文链接:https://blog.csdn.net/sinat_38259539/article/details/71036111 前期准备: JProfiler 9.2 eclipse : 版本 Indigo Service Release 2 第一步:在JProfiler的主菜单中选择Session->IDE integrations。需要注意的是,当执行插件安装时,需要关闭Eclipse。如果通过JProfiler的安装向导执行安装程序,启动Eclipse前需要完成整个安装。 第二步、选择Eclipse的版本,笔者环境为Indigo Service Release 2,如图所示。 第三步、点击Integrate按钮,选择Eclipse所在的目录(注意这里是eclipse外层目录即可),它会给出一个请关闭你要集成的eclipse然后点击Proceed。如图 然后选择你要集成到eclipse中的目录(外层目录即可)如图、 选择Choose之后会有一个成功的提示,如图 到这里插件已经集成到Eclipse了。 第四步、我们打开Eclipse,在Eclipse里配置JProfiler。 点击Windows->Customize Perspective->Command