JProfiler

how to measure hibernate performance?

五迷三道 提交于 2019-11-30 20:05:47
how to measure performance in hibernate? I want to know that how much time hibernate takes to execute a query? JProfiler 7.1 has a JPA/Hibernate probe: http://www.ej-technologies.com/products/jprofiler/whatsnew71.html Here's a screen cast that shows how it works: http://blog.ej-technologies.com/2012/01/profiling-jpahibernate.html The hot spots view looks like this: Disclaimer: My company develops JProfiler I would recommend one or several of the following options: Database profiler (e.q. SqlServer Profiler) Hibernate's built-in statistics (see: http://www.javalobby.org/java/forums/t19807.html

jprofiler jvm性能监控

爱⌒轻易说出口 提交于 2019-11-30 00:46:30
一、下载 https://www.ej-technologies.com/download/jprofiler/files 二、配置linux端的Jprofiler 1、下载好后把tar包上传的linux服务器,解压。我上传至 /usr/local/src tar -zxvf jprofiler_linux_11_0_1.tar.gz 2、修改jboss的bin/standalone.sh文件(最后copy一份出来,命名standalone-jprofiler.sh,以便分情况启动) 在JAVA_OPTS后边追加如下语句, jprofiler的安装路径和端口,我配的端口是10001, 【netstat -ant | grep 10001】检查端口是否被使用了,另外,我是64位的, X86_64系统: JAVA_OPTS="$PREPEND_JAVA_OPTS $JAVA_OPTS -agentpath:/usr/local/src/jprofiler11.0.1/bin/linux-x64/libjprofilerti.so=port=10001 " 3. 重启jboss,ps -ef | grep jboss, kill -9 pid, nohup ./standalone.sh & (配合下图中(三、-最后一步 session startup)使用 三

Java application profiling

二次信任 提交于 2019-11-29 01:29:27
I am looking for a Java code profiler which I can use to profile my application (its a service which runs in backend) on production (so means low over head, and it must not slow down my application). Primarily I want calling tree profiling, that is if a() calls b() and then b() calls c(), then how much time a() b() and c() took, both inclusively and exclusively. Have seen jvisualvm and jprofiler , but this is not what I am looking for, because I cannot tie my production application to them as it will cause a major performance issue. Also, I did go through metrics ( https://github.com

Which Java profiler is better: JProfiler or YourKit? [closed]

a 夏天 提交于 2019-11-28 15:14:48
Which profiler is better for general purpose profiling and heap analysis? 90% of our apps are standalone command line programs with substantial database and numeric processing. The other 10% are webapps/servlet container apps (with very little JSP and NO SCRIPLETS!). Target user would be Sr Software Engineer with 5-10 years of industry experience. We need support only for Sun JDK 5 and. As of writing this question (2008-10-02), JProfiler was at 5.1.4 and YourKit was 7.5. Looks like YourKit 8.0 will be released soon. I've used both JProfiler 4 and YourKit 7.5, and YourKit wins hands down. It's

Identifying lambdas in stacktrace in Java 8

非 Y 不嫁゛ 提交于 2019-11-28 11:33:15
I am trying to profile a Java application that uses lambdas using JProfiler. I am having trouble identifying, which lambda the profiler is showing as a hotspot: I would appreciate any help on understanding the format of the stack trace involving lambdas like "edu.indiana.soci.spidal.vectorclass.lambda$PairwiseThread_SecDrv$23" Thank you! Unfortunately, there is no direct way to identify the lambda because lambdas by nature have no name. At runtime, lambdas are currently implemented with anonymous classes. They are numbered sequentially after the $ sign with respect to the containing class. If

记录一下JProfiler的使用

梦想与她 提交于 2019-11-28 07:16:32
刚入职实习,第四天了,昨晚老大安排我在公司机器上装个JProfiler看一情况。 然后网上都是什么跟tomcat一起使用的,所以折腾了很久才搞出来。 我这里没用什么服务器,因为公司用的是Play!框架。 1.JProfirler 这个就不多介绍了,网上有,本篇文章主要是记录安装使用的过程。 2.Windows安装JProfirler客户端 直接下载安装就可以,要收费,可以有激活码,也可以试用,我这里用的是试用。 3.Linux服务器安装JProfiler服务端 下载跟客户端一样版本的JProfiler,Ubuntu下载tar.gz格式的。 先把文件上传到服务器,然后解压之后,就把解压的文件夹移动到某个地方 例如/usr/local/jprofiler或者/opt/jprofiler,都可以 接下来配置环境变量,编辑/etc/profile JPROFILER_HOME=/usr/local/jprofiler11.0.1/bin/linux-x64 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$JPROFILER_HOME 然后这样基本就算安装好了。 4.windows客户端连接Linux服务端 (1)新建远程integration (2)选择远程机器 (3)选择JVM信息,记得要看清是Oracle还是OpenJDK哦 (4)选择连接方式

使用JProfiler监测Docker的Glassfish

拈花ヽ惹草 提交于 2019-11-28 01:55:36
在宿主机中安装JProfiler,这里是windows10. 在Docker container中安装JProfiler。在docker file中添加: #暴露JProfiler端口 EXPOSE 8849 # 下载并解压JProfiler RUN wget https://download-gcdn.ej-technologies.com/jprofiler/jprofiler_linux_11_0.tar.gz -P /tmp/ && \ tar -xzf /tmp/jprofiler_linux_11_0.tar.gz -C /usr/local &&\ rm /tmp/jprofiler_linux_11_0.tar.gz # 使用AS_ADMIN配置JProfiler agent RUN $AS_ADMIN start-domain domain1 $AS_ADMIN -u admin --passwordfile /opt/pwdfile create-jvm-options '-agentpath\:/usr/local/jprofiler11.0/bin/linux-x64/libjprofilerti.so=port=8849,nowait' 在docker-compose中map端口,或者使用docker run -p 8849:8849 ports: -

How to connect JProfiler to an application running on localhost?

不羁的心 提交于 2019-11-28 01:02:03
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 they are not activated and so how can it be activated? I

What is 'JNI Global reference'

流过昼夜 提交于 2019-11-27 21:14:25
I am using jProfiler to find memory leaks in a Java swing application. I have identified instances of a JFrame which keeps growing in count. This frame is opened, and then closed. Using jProfiler, and viewing the Paths to GC Root there is only one reference, 'JNI Global reference'. What does this mean? Why is it hanging on to each instance of the frame? Peter Wikipedia has a good overview of Java Native Interface , essentially it allows communication between Java and native operating system libraries writen in other languages. JNI global references are prone to memory leaks, as they are not

Java application profiling

对着背影说爱祢 提交于 2019-11-27 14:54:42
问题 I am looking for a Java code profiler which I can use to profile my application (its a service which runs in backend) on production (so means low over head, and it must not slow down my application). Primarily I want calling tree profiling, that is if a() calls b() and then b() calls c(), then how much time a() b() and c() took, both inclusively and exclusively. Have seen jvisualvm and jprofiler , but this is not what I am looking for, because I cannot tie my production application to them as