jvisualvm

Saving VisualVM information as data

由 吃可爱长大的小学妹 提交于 2021-02-20 19:08:09
问题 Using VisaulVM, I'd like to obtain this as data, without image processing algorithms being applied... How can I do that? I think this won't come out of a snapshot. I am not sure how VisualVM and jVisualVM vary, the naming is sure confusing, but I'm running the Oracle supplied one ( Version 1.7.0_80 (Build 150109) ) Thanks! 回答1: You can use Tracer plugin with various probes. Tracer can export data in CSV, HTML or XML. 回答2: All this information is available through JMX. That's how VisualVM gets

Saving VisualVM information as data

由 风流意气都作罢 提交于 2021-02-20 19:07:50
问题 Using VisaulVM, I'd like to obtain this as data, without image processing algorithms being applied... How can I do that? I think this won't come out of a snapshot. I am not sure how VisualVM and jVisualVM vary, the naming is sure confusing, but I'm running the Oracle supplied one ( Version 1.7.0_80 (Build 150109) ) Thanks! 回答1: You can use Tracer plugin with various probes. Tracer can export data in CSV, HTML or XML. 回答2: All this information is available through JMX. That's how VisualVM gets

visualvm - Local java applications cannot be detected

由 柔情痞子 提交于 2021-02-20 18:55:23
问题 I am trying to run visualvm in my Windows 8 machine and i am getting error 'Local java applications cannot be detected'. I tried to follow the below steps to resolve the issue as suggested in 'https://visualvm.github.io/troubleshooting.html'. I gave full permission to my 'AppData\Local\Temp\hsperfdata_Dhasan' folder. But still i am getting the same error whenever i start visualvm. Please help me to fix this issue. Thanks. 回答1: Quit all java applications and delete hsperfdata_Dhasan folder. 来源

windows server 2008 环境下，运行java程序，内存耗尽问题

由 独自空忆成欢 提交于 2021-02-13 20:49:15
经历的几天的分析，希望把自己学到的知识总结一下。 系统版本：Windows Server 2008 R2 Standard 系统类型：64bit 内存：32GB 程序：在系统上部署了solr，然后写5个线程不停的向solr查询。 问题现象：任务管理器中物理内存一直增长，最后到了99%。但是进程占用的内存加起来不到10G。 分析： 第一步：怀疑java程序内存溢出。 工具： jvisualvm与eclipse mat jvisualvm检测是否内存溢出，如果存在内存溢出，可以用用jmap导出dump文件，再用mat分析。mat可以分析到每个类占用的内存。网上有很多mat的使用资料，大家可以自己查询。 我使用了jdk自带的jvisualvm，在jdk bin目录下jvisualvm.exe检测内存。如下图： 通过上图，发现heap会收集的，所以不存在内存溢出。为了熟悉，jmap，mat工具，我自己导出dump文件，用mat也分析了一下。 第二步：进一步分析 如果程序没有内存溢出问题，那么内存被什么占用了呢？ 分析工具： RamMap与VMMap RamMap 可以整体分析内存使用情况，VMMap可以精确到某个进程ID，他们都可以查看什么文件已经从磁盘映射到内存。 我用RAMMAP分析，发现大量的内存被Mapped File占用，点击Empty--Empty Working Sets

VisualVM Reporting

由 时光总嘲笑我的痴心妄想 提交于 2021-02-11 03:02:06
问题 I am performing load test on JMeter for webbased application, and i have to get CPU Utilization, Memory Utilization, number of Threds. For this i am using VisualVM. Is there any way we can get as Report in the form of XLS or CSV or any other format we can give to the Customer. Could you pleasee help me on this or otherwise is there any other Performance tool we can get CPU,Memory utilization? -- Thanks, Raghu.ch, 回答1: You can use Tracer plugin with various probes. Tracer can export data in

VisualVM Reporting

由 蹲街弑〆低调 提交于 2021-02-11 02:53:52
问题 I am performing load test on JMeter for webbased application, and i have to get CPU Utilization, Memory Utilization, number of Threds. For this i am using VisualVM. Is there any way we can get as Report in the form of XLS or CSV or any other format we can give to the Customer. Could you pleasee help me on this or otherwise is there any other Performance tool we can get CPU,Memory utilization? -- Thanks, Raghu.ch, 回答1: You can use Tracer plugin with various probes. Tracer can export data in

VisualVM Reporting

由 孤街醉人 提交于 2021-02-11 02:53:45
问题 I am performing load test on JMeter for webbased application, and i have to get CPU Utilization, Memory Utilization, number of Threds. For this i am using VisualVM. Is there any way we can get as Report in the form of XLS or CSV or any other format we can give to the Customer. Could you pleasee help me on this or otherwise is there any other Performance tool we can get CPU,Memory utilization? -- Thanks, Raghu.ch, 回答1: You can use Tracer plugin with various probes. Tracer can export data in

jvisualvm: Stuck on “Loading Heap Dump” screen

由 ≡放荡痞女 提交于 2020-01-29 21:24:25
问题 I created a heap dump file with hprof using this command: java -agentlib:hprof -cp "..\..\jars\trove.jar;.\bin" com.mysite.MyApp This successfully created the file "java.hprof.txt" which was about 5MB. I then opened up jvisualvm to view this file, and loaded it in. But visualvm appears to be stuck on the loading screen. The screen below has been up for about 10 minutes now. Did I miss a step? Should I have used different options on the command line with hprof? How can I read this heap dump

Unable to profile JBoss 5 using jvisualvm

由 别来无恙 提交于 2020-01-23 11:22:09
问题 I've been getting some java.lang.OutOfMemoryError: GC overhead limit exceeded errors while running my Java app overnight: java.lang.OutOfMemoryError: Java heap space Dumping heap to java_pid6376.hprof ... Heap dump file created [512149941 bytes in 23.586 secs] 23:34:52,163 WARN [HDScanner] Scan failed java.lang.OutOfMemoryError: Java heap space 23:34:52,298 ERROR [ContainerBase] Exception invoking periodic operation: java.lang.OutOfMemoryError: Java heap space 23:34:52,321 ERROR [JIoEndpoint]

Unable to profile JBoss 5 using jvisualvm

由 走远了吗. 提交于 2020-01-23 11:22:09
问题 I've been getting some java.lang.OutOfMemoryError: GC overhead limit exceeded errors while running my Java app overnight: java.lang.OutOfMemoryError: Java heap space Dumping heap to java_pid6376.hprof ... Heap dump file created [512149941 bytes in 23.586 secs] 23:34:52,163 WARN [HDScanner] Scan failed java.lang.OutOfMemoryError: Java heap space 23:34:52,298 ERROR [ContainerBase] Exception invoking periodic operation: java.lang.OutOfMemoryError: Java heap space 23:34:52,321 ERROR [JIoEndpoint]
订阅 jvisualvm