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Automatically reclaim memory from leaky programs
Authored by: alexiskai on Apr 11, '12 09:03:38AM

Yes, purge has been part of Xcode. Workstations without Xcode installed typically do not have the purge command. This is because purge is designed to allow developers to test their apps in a "clean" environment, i.e. one in which the OS has nothing in cached memory, without needing to reboot.

I concur with the above comment: in my experience, the benefits of running purge as a "memory cleaner" are illusory. The only possible benefit might be in a situation where a memory bottleneck is causing the system to become severely degraded. Even then I'm not sure it does much. In most cases, users experiencing such bottlenecks would find it a better use of their time and money to just go buy more RAM.

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