We’ll use an 8 GB disk with the unimaginative name “RAM Disk.”
It will ask you two questions: the desired size of your RAM Disk (in bytes, kilobytes, megabytes, or gigabytes) and the name you’d like to assign the disk. There are several apps that perform this function, but we’ll use RAM Disk Creator from programmer Florian Bogner.ĭownload the app and launch it on your Mac. You can now read and write to it as you would with any other drive, as long as you remember that any data stored on the disk will be lost after a reboot or power loss.Ĭreating a RAM Disk with a Third Party Appįor an even easier method, you can use a third party app to create a RAM Disk. After a brief moment, the system will create and mount your RAM Disk. Once you’ve configured the command, press Return to launch it. You can also change the “Ram Disk” name inside the double quotes to another name you prefer. Input this number in place of the X characters in the command above: diskutil erasevolume HFS+ 'RAM Disk' `hdiutil attach -nomount ram://8388608` In our example, we’ll create a 4 GB RAM Disk, which requires a number of 8388608 (4096 * 2048). Calculate this number by multiplying your desired size of disk in megabytes by 2048. Replace the X characters with a number that represents the block size for the total capacity of your RAM Disk. Open the Terminal app from Applications > Utilities and enter the following command: diskutil erasevolume HFS+ 'RAM Disk' `hdiutil attach -nomount ram://XXXXX` In OS X, there are two primary methods of creating a RAM Disk: the Terminal or an app. Now, it’s time to create the Disk itself.
8 gb ram for mac mac#
Play around with the tools and techniques below to determine the best choice for your Mac and your needs. On the other hand, if you’re just muxing video and audio files you can choose a RAM Disk a bit higher than 50 percent of your total memory.
If you’re doing heavy Photoshop work, for example, you’ll want to leave more memory available for the app. Your choice will also depend on what applications you need to run while the RAM Disk is mounted. On a Mac with 16 GB of RAM, for example, don’t make your RAM Disk bigger than 8 GB. In general, it’s wise to keep your RAM Disk at or below 50 percent of your total physical memory. Therefore, make sure to choose a good ratio between your needs and your overall system memory. You’ll want to be careful to leave enough RAM available to run your Mac, however if you use most or all of your RAM for a RAM Disk, the system will begin paging aggressively to the hard drive and overall system performance will plummet. This subreddit is not endorsed or sponsored by Apple Inc.The methods for creating RAM Disks, outlined below, will allow you to create a volume of any size. If you'd like to view their content together, click here. This fundamental difference in audience is why we support two communities, r/Apple and r/AppleHelp. Apple SubredditsĬontent which benefits the community (news, rumors, and discussions) is valued over content which benefits only the individual (technical questions, help buying/selling, rants, etc.).
8 gb ram for mac upgrade#
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