jvm osx

He following error occurred while trying to add or remove files in theInstallation directory:[Errno 13] Permission denied: '/library/python/2.7/site-packages/test-easy-install-2452.write-test 'The installation directory you specified (via--install-dir,--prefix, orThe distutils default setting) was:/library/python/2.7/site-packages/Perhaps your account does not having write access to this directory? If theInstallation directory is a system-owned directory, which is needAs the administrator or "ro

in, wearing an NFC ring, back, NFC brush to unlock, walking, brush on the brush, this is not impossible, but very likely oh.Or your Android phone can be connected with the MAC Book network communication, through the NFC brush phone control, may also be good, unfortunately, my red rice to it (Note) without NFC, no fun, next timeI iphone5s by check, there is no NFC, it is said that the Apple to fight NFC, since a iBeacon, the world is a long time will be combined, the time will be divided, in kee

The general installation process is as follows: 1:sudo SH (Will prompt you to enter the current user's password) 2:CP apache-ant.1.8.2-bin.zip/usr/local 3:cd/usr/local 4:unzip Apache-ant.1.8.2-bin.zip 5:chown Yarin (user name): admin (user group) apache-ant.1.8.2 6:ln-s apache-ant.1.8.2 ant (Creating a soft connection) 7:vi/etc/bashrc The I key inserts the following environment variables: Export ant_home=/usr/local/ant

Defaults write/library/preferences/com.apple.bluetooth.plist controllerpowerstate 0#关闭蓝牙服务Defaults write/library/preferences/com.apple.bluetooth.plist controllerpowerstate 1#打开蓝牙服务Killall blued#结束所有蓝牙服务进程Launchctl unload/system/library/launchdaemons/com.apple.blued.plist#卸载蓝牙DaemonLaunchctl load/system/library/launchdaemons/com.apple.blued.plist#载入蓝牙DaemonLaunchctl Start com.apple.blued#重启蓝牙DaemonOriginal address: Https://discussions.apple.com/thread/2619301?tstart=0MAC

,0.5f,0.0f }; Trianglebatch.begin (Gl_triangles,3); trianglebatch.copyvertexdata3f (Vverts); Trianglebatch.end ();}/////////////////////////////////////////////////////////////////////////////////called to draw scenevoidRenderscene (void){ //Clear the window with current clearing colorGlclear (Gl_color_buffer_bit | Gl_depth_buffer_bit |gl_stencil_buffer_bit); Glfloat vred[]= {1.0f,0.0f,0.0f,1.0f }; Shadermanager.usestockshader (glt_shader_identity, vRed); Trianglebatch.draw (); /

-lcrypto and add libssl.dylib and libcrypto.dylib paths (if you have brew installed, then/usr/local/opt/openssl/lib/), rerun the Make command, DoneAttached to my revised MakeFile Extra_libs line:Default 1 Extra_libs = -Lz -Lresolv -Lmcrypt -Lltdl -Lstdc++ -Liconv -Liconv -Lpng -Lz -Lcurl -Lz -Lm -Lxml2 -Lz -Licucore -Lm -Lcurl -Lxml2 -Lz -Licucore -Lm -licui18n -Licuuc -Licudata -Licuio -Lxml2 -Lz -Licucore -Lm -Lxml2 -Lz -Licucore -Lm -Lxml2 -Lz -Licucore -Lm -Lxml2 -Lz -Licuco

to activate Virtualenv.Perhaps Pyenv-virtualenv has no been loaded into your shell properly.Please restart the current shell and try again.Append environment variablesIf which pyenv-virtualenv-init >/dev/null; Then eval "$ (pyenv virtualenv-init-)"; FiSOURCE ~/.bash_profilePyenv Local 3.6.3 env3.6.3Since this basic feature has been installed completeThis article is from the "Fight Together" blog, please make sure to keep this source http://zwltc.blog.51cto.com/6019176/1983925Mac

Company Timing Music is played with the Mac Mini, before using itunes, you can use the crontab+ command/usr/bin/osascript-e ' tell application ' itunes ' to play ' timed playbackBut Ituns import music is quite troublesome, before also with NetEase cloud music, but need to manually start and stop very troublesome.One day thought can use Key wizard, timed in the Application launch button click, but the official download of the Button Wizard is not installed, and later found that the Apple script w

Tags: mac adb android eclipse ADB start-serverRecently, I had a problem developing Android on my Mac. With Vivo x3t as a development machine, connected to the computer after the discovery eclipse in DDMS without my real machine, after some Google and Baidu, finally found a solution, here to share to you.If you encounter a situation that the ADB command prompts you to find, you can read my other article, set the Android ADB environment variable in MAC1. First, make sure that you have installed th

So, just comment out the line (add # At the beginning of the row). Then reload the ~/.BASHRC file by executing $source ~/.BASHRCFinally, execute $which python in the new terminal to verify that the change is valid.Programme IVRm-rf?/anacondaQuite simple, refer to: Https://docs.continuum.io/anaconda/install#os-x-uninstallProgramme fiveThe package "Anaconda Clean" (available from the Anaconda platform) requires a secure uninstall.Conda Install anaconda-Clean # Install the package Anaconda Clea

Label:Recently, encountered a problem, that is, MAC using homebrew installed MySQL, today using Mysql.server Start,mysql can not start, restart can not find the PID, the service did not start!The error is as follows:Google, find a solution! Simple is: According to the error of the startup report, go to the appropriate folder, delete all the *.err files, and then create the no PID file!It is possible to solve the problem at this point, but I still error, and then check whether there are MySQL rel

Jvm runtime memory parsing and jvm runtime memory Parsing I. jvm Concept 　　Before learning about the concept of jvm, let's first understand the logic structure of the java platform. The picture is from deep java virtual machine. 　　 We can see that jdk contains jre, java language and java development tools and APIs. jr

Analysis of JVM garbage collection mechanism and jvm garbage collection First, we need to know that Java's memory allocation and collection are all automatically completed by the JVM garbage collection mechanism. Each JVM implementation may adopt different methods to implement the garbage collection mechanism. Before S

Detailed description of JVM memory partition and garbage collection mechanism, jvm garbage collection When writing Java code, you do not need to worry about whether your New object is released or when. Because the JVM has an automatic garbage collection mechanism. In our previous blog, we talked about the MRC (manual reference counting) and ARC (automatic referen

The JVM defines the range of data that is used during the execution of several programs. Some of the data in this area is created when the JVM is started and destroyed when the JVM exits. The rest of the data is dependent on each thread, created when the thread is created, and destroyed when the thread exits. Program Counter A program counter is a small memory s

Java memory composition:Heap and non-heap memory According to the official statement: "A Java virtual machine has a heap. The heap is the runtime data area, and the memory of all class instances and arrays is allocated from this place. The heap is created when the Java Virtual Machine is started ." "Memory outside of the heap in JVM is called non-heap memory )". JVM manages two types of memory: heap and n

Visualvm is Sun's openjdk project. It aims to create a complete set of problem solving tools for Java applications. It integrates a visual tool with multiple JDK command tools. It is mainly used to monitor JVM running conditions, you can use it to view and view heap dump, thread dump, memory object instance, GC execution, CPU consumption, and class loading. Java developers can use visualvm to create logs of required information. System Administrators

Whether it is ygc or full GCProgramDuring running interruption, correctly select different GC policies and adjust JVM and GC parameters, which can greatly reduce the program running interruption caused by GC, in this way, the Java program's work efficiency can be appropriately improved. However, adjusting GC is a very complex process. Because each program has different characteristics, for example, the web and GUI programs are very different (the Web

Although written for many years of Java code, but basically only the JVM when blackbox processing. The book on the JVM has also seen several books, but the results are poor. See OPENJDK code? Not interested. I've had a few weeks of free time, so I decided to write a JVM in the Go language and conquer the JVM monster!Wh

"Great haste makes great waste" JVM startup process The JVM is the environment in which the Java program runs, as well as an application process of an operating system, so it has its own lifecycle and its own code and data space. The JVM works and features mainly refers to the operating system loaded into the JVM,