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Jstat command to view the GC status of the JVM (Linux for example)

size CCSC: Compression class space size CCSU: Compression class space usage size YGC: number of young generations of garbage collection YGCT: waste collection time for young generation FGC: garbage collection times in the old age FGCT: time spent on garbage collection in the old age GCT: total time spent on garbage collection Heap Memory Statistics ngcmn: Cenozoic Minimum capacity NGCMX: maximum capacity of the Cenozoic NGC: Cu

The Jstat command uses

size OC : Current old age size MCMN: Minimum metadata capacity MCMX: Maximum metadata capacity MC: Current metadata space size CCSMN: Minimum compression class space size Ccsmx: Maximum compression class space size CCSC: Current compression class space size YGC: Young generation GC number FGC: Number of GC times in the old age  New Generation garbage Collection statistics:[[Email protected]_app02 ~]$ jstat-gcnew 2748 s0c s1c s0u s1u TT MTT

Configuration and use of sonarqube code Quality Management Platform

Sonarqube configuration (prerequisite: Log On with the admin user) 1. Install the Chinese localization package: Setting> Update center> availableplugins> localization> Chinese pack > Install 650) This. width = 650; "src =" http://s5.51cto.com/wyfs02/M01/81/FC/wKiom1dGsBDDOKxuAABqKledwEw545.png "Title =" code quality a1.png "alt =" wkiom1dgsbddokxuaabqkledwew545.png "/> After the Chinese package is installed, you must restart sonarqube to make the package take effect (you can install the checkst

Java Static Detection Tool/java code specification and quality check Brief introduction

is used to access each node in the tree. Each time a node is accessed, a callback mechanism (visitor mode) is used to prompt the appropriate inspector. In these callback methods, the inspector collects relevant information to determine if there is a violation of the specification. Lint4j 1) Definition: lint4j is a Java-based source code analysis tool that can perform static analysis of Java source code and bytecode to determine if there is a deadlock, performance problem, or

Linux JVM running Information tracking __linux

failuresInvalid: Invalid QuantityTime: Compilation Time consumingFailedtype: Failure typeFailedmethod: The fully qualified name of the failed method -GC The behavior statistics of the garbage collection heap, commonly used commands [root@izbp1bmo3l7m8z7ac5bi4wz ~]# jstat-gc 21275 s0c s1c s1u EC EU OC OU MC MU CCSC ccsu ygc ygct FGC s0u FGCT86016.0 89600.0 0.0 8769.9 148992.0 26212.9 332288.0 247371.9 59008.0 57361.6 6784.0 6348.8 17 0.379 3 0.345-0.7

JVM Learning----Viewing stack information

of compilation failuresInvalid: Invalid QuantityTime: CompilationFailedtype: Failure typeFailedmethod: The fully qualified name of the failed method -GC The garbage collection heap behavior statistics, common commands [root@izbp1bmo3l7m8z7ac5bi4wz ~]# jstat-gc 21275 s0c s1c s0u s1u EC EU OC OU MC MU ccsc ccsu ygc ygct FGC fgct GCT86016.0 89600.0 0.0 8769.9 148992.0 26212.9 332288.0 247371.9 59008.0 57361.6 6784.0 6348.8 17 0.379 3 0.345 0.724[Root@iz

Exploring the automation system of the architecture development of the EE project

Sentia ECLIPSE IDE Development environment MAVEN build automation compiles packaged projects NEXUS Private Maven Warehouse SVN source Management junit+mockito Unit test and mock frame Coverage of integrated JACOCO Analysis Unit tests Jenkins Integration Sonar analyzes source code quality Glassfish Web Container Publishing Everyone is talking about the era of agile development, so-called 工欲善其事 its p

Jenkins uses Checkstyle, coverage, PMD, findbugs plugin

1. After installation start Jenkins, in Manage Jenkins, select Manage plugin, install related available in Plugins tab FindBugs Plug-inThis plug-in collects the FindBugs analysis results of the project modules and visualizes found.If you like this open source plug-in consider supporting I work by buying my Android game Inca.Jenkins Cobertura PluginThis is plugin integrates Cobertura coverage reports to Jenkins.PMD Plug-inThis is plug-in collects the PMD analysis results of the project modules an

Building NODEJS Automation Unit Test framework based on Grunt&mocha (including Code coverage statistics)

IntroductionGrunt is a tool for building a task-based JavaScript worldMocha is a rich-character JavaScript testing framework that can be run in node. js and in the browser, making asynchronous testing simpler and more interesting. Mocha can run tests continuously, support flexible and accurate reports, and go to the correct test samples when mapping to uncaught exceptions.PrerequisiteThe Nodejs project file directory structure is as follows├──config├──controllers├──models├──lib├──node_modules├──

One of the sonarqube4.4 + Jenkins code check instances

agile practices, the related requirements for code are either paired programming or code review. Recommended alternative code review with sonar see http://t.cn/zHFfH8a Code review efficient combination recommendation Sonarqube was recently updated on his computer to share the specific practices. This article first introduces the simplest practice: Use Jenkins to pull code without compiling and scan only. 1, first download the latest sonarqube, see th

"Getting Started with Linux" Sonarqube and Jenkins Integration path __linux

After installing the sonar, you need to integrate with the Jenkins that the project is in, and the principle of Jenkins and sonar integration is probably this, Jenkins in its plug-in Management center, download the sonar plug-in and configure it with the sonar connection. Jenkins then notifies

My DevOps hands-on experience sharing one or two

Objective With the system growing, developers, sites, servers more and more, micro-service propulsion, ... And so on, it's increasingly necessary to automate devops.The real reason, of course, is that these problems were foreseen at the start of the team, so it's up to you to automate from the beginning.The tangible benefits are also obvious, savings in human costs, standardized processes, traceable release histories, free hands (repetitive labor), avoidance of errors caused by human actions, an

Sonarqube Code Quality Management platform better construction and use of data

Http://www.voidcn.com/blog/lidujun1028/article/p-3831235.htmlSonar (SonarQube) is an open source platform for managing the quality of source code. Sonar is not just a quality data reporting tool, but also a code quality management platform. Supported languages include: Java, PHP, C #, C, Cobol, PL/SQL, Flex, and more.Main Features: Code overwrite: Through unit tests, which line of code will be shown to be selected Improve coding Rules

Sonarqube code Quality Management Platform Installation

settings take effect: Mysql> show variableslike '% query_cache % '; + ------------------------------ + ---------- + | Variable_name | value | + ------------------------------ + ---------- + | Have_query_cache | Yes | | Query_cache_limit | 1048576 | | Query_cache_min_res_unit | 4096 | | Query_cache_size | 33554432 | | Query_cache_type | on | | Query_cache_wlock_invalidate | off | + ------------------------------ + ---------- + 3, Create sonarqube database (UTF-8 code) Ii. Install sonarqube's W

③ of continuous Integration: Automatically deploy code to test environment

--tags--progress git@192.168.3.198:web/web-demo.git +r efs/heads/*:refs/remotes/origin/* > Git rev-parse refs/remotes/origin/master^{commit} # timeout=10 > Git Rev-parse Refs/remotes/origin/origin/master^{commit} # timeout=10 Checking out Revision B8f3be4385efdf64606158c23f9f1992bb2da1d3 (refs/remotes/origin/master) Commit message: "Add www.chinasoft.com" > git config core.sparsecheckout # timeout=10 > Git checkout-f b8f3be4385efdf64606158c23f9f1992bb2da1d3 > Git rev-lis T b8f3be4385efdf64606158

Jacoco Coverage Tools use

Jacoco IntroductionJacoco is an open-source coverage tool. Jacoco can be embedded in ant, Maven, and provide eclemma Eclipse plug-ins, or you can use javaagent technology to monitor Java programs. Many third-party tools provide integration of JACOCO, such as Sonar, Jenkins, and so on.Website address: http://www.eclemma.org/jacoco/Java CountersThe Jacoco contains coverage counters of various scales, including instruction level (instructions,c0coverage)

Use Jenkins to compile Asp.net

the authentication information as prompted. 8. In the system with vsinstalled, find the file microsoft.webapplication.tar gets, create the same folder on the Jenkins server, and copy the file. C: \ Program Files (x86) \ msbuild \ Microsoft \ visualstudio \ v10.0 \ webapplications \ microsoft.webapplication.tar gets 9. Now you can compile your Asp.net project in Jenkins. Several plug-ins are recommended: Violations for staticCodeCheck fxcop, stylecop, gendarme, etc.

Target reflection echo detection algorithm and its FPGA implementation: an overview of algorithms

target reflection echo detection algorithm and its FPGA implementation One: Algorithm OverviewA time ago, a project was contacted with a sonar target reflection echo detection. The core function of the sonar receiver is to recognize the echo of the excitation signal emitted by the transmitter in the reflected echo which contains a lot of noise. I will share a few articles on this FPGA-based ECHO recognition

UVa 11044 searching for Nessy (water ver.)

11044-searching for Nessy Time limit:3.000 seconds Http://uva.onlinejudge.org/index.php?option=com_onlinejudgeItemid=8category=99page=show_problem problem=1985 the Loch Ness Monsteris a mysterious and unidentified animal said to inhabit Loch, a Ness large deep freshwater Near the city of Inverness in northern Scotland. Nessie is usually categorized as a type of the lake monster. Http://en.wikipedia.org/wiki/Loch_Ness_Monster In July 2003, the BBC reported a extensive investigation to Loch Ne

Ultraviolet A 11044-searching for Nessy

Searching for Nessy The Loch Ness monsteris A mysterous and unidentified animal said to inhabit Loch Ness,A large deep freshwater loch near the city of Inverness in northern Scotland. Nessie is usually categorized as a type of lake monster.Http://en.wikipedia.org/wiki/Loch_Ness_Monster In July 2003, the BBC reported an extensive investigation of Loch Ness by a BBC team, using 600 separate sonar beams, found no trace of any? sea monster (

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