![]() If you feel like you are frequently hitting a memory ceiling learn how to check if your Mac needs a RAM upgrade and consider upgrading, it can dramatically improve overall system performance. This is not necessary for most Mac users, but power users and those with heavy memory demands will undoubtedly find this command helpful in the future. Of course, the benefit of using purge rather than rebooting is that you don’t have to restart the machine and you can maintain currently active applications while still freeing up memory. ![]() The purge command forces disk and memory caches to be emptied, offering a ‘cold disk buffer cache’ which is similar to the state of the operating system after a reboot. Open Activity Monitor to see the before and after results yourself, you’ll find dramatic changes at the “Free”, “Used”, and “Inactive” meters under System Memory. Note: some versions of OS X may not require you to prefix the purge command with sudo, while running with sudo will require authentication, like so: ![]()
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