Note that if you follow this tip, you will always need to have the RAM Disk in order to launch Eclipse (otherwise you will see the error “A Java Runtime … must be available in order to run Eclipse”). You can configure your system to run the ramdisk.bat script automatically by placing the script into your Startup folder. Right click on the file, go into Properties and check Run as Administrator. y_ z\ /S /E /Y /Qīy running ramdisk.bat, you will have created a new disk N: labeled “ JDK RAMDISK” that will contain your JDK.ģ. Make sure the file is run as an Administrator. Replace x, y, and z with the JDK version you have installed on disk: Placing JDK on Virtual Disk offĬall xcopy C:\ \jdk1. Create a new batch file, for example: C:/tools/batch/ramdisk.bat 52 WAYS TO SPEED UP MAC INSTALLDownload and install the utility called imdiskĢ. Note that if you follow this tip, you will always need to have the RAM Disk in order to launch Eclipse (otherwise you will see the error “A Java Runtime … must be available in order to run Eclipse”). You can configure your system to run the ramdisk.sh script automatically upon startup using Automator or using a launchtl daemon. 52 WAYS TO SPEED UP MAC FREEYou can remove the RAM Disk and free its memory by clicking on the Eject button: You should now see in Finder the new device called JDKRAMDISK containing your JDK. 52 WAYS TO SPEED UP MAC PLUSInitialized /dev/rdisk4 as a 300 MB case-insensitive HFS Plus volume Now run ramdisk.sh to create the Ram Disk: $ ramdisk.sh Save your file and make it executable: chmod 755 ~/tools/batch/ramdisk.sh (Note that diskutil expects the number of 512 bytes sectors to be allocated: for 300MB, 300 * 1024 ^ 2 / 512 = 614400)Ģ. Replace x, y, and z with the JDK version you have installed on disk: #!/bin/bashĭiskutil erasevolume HFS 'JDK RAMDISK' `hdiutil attach -nomount ram://614400 `Ĭp -r /Library/Java/JavaVirtualMachines/jdk1. Create a new batch file, for example: ~/tools/batch/ramdisk.sh The RAM Disk is created with the diskutil tool:ġ. 52 WAYS TO SPEED UP MAC FOR MACStep by Step for Linux users:Įverything is described here already Step by Step for Mac Users: Warning: Don’t put anything permanent on the RAM Disk we will create as it will be erased/recreated at each reboot. Because the memory used will be reserved for the disk and become unavailable for other programs, we will only be putting the JDK on there. ![]() Creating a RAM disk uses your RAM even though it just appears as a drive on the computer. It boosts the I/O performance on anything that is on it. ![]() Advanced > Remove all unwanted kindsĪ RAM disk is a virtual disk or hard drive that is stored into the computer’s memory.
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