![]() ![]() There are benefits to Unified Memory though. It’s why your new M1 or M2 Mac probably needs a cleaner app, options for which we will discuss below. Instead, the memory is integrated into the same package that contains the chip.īecause of this you need to make sure you get enough memory when you buy your Mac because this memory cannot be upgraded. There’s no memory slot or slots on the motherboard, nor is there an area where a memory chip has been permanently soldered on. This means that in M1 and M2-series Macs the memory is a part of the architecture itself. Instead all Macs with Apple’s own silicon inside use Unified Memory which is shared among the hardware components. ![]() Now that Apple is producing its own processors – the M1 and M2-series of chips – the company no longer uses RAM in the traditional sense. don't see so much of that these days, think the penny dropped with most users that it doesn't actually do anything.Get Free Edition 2023 What is Unified Memory and the ones who were sponsored by CleanMyMac claiming it had some magical powers. I think some of this comes from YouTubers who spread FUD about the swap file wearing out the ssd (even though Windows systems have used the swap file in a much more aggressive way for decades). There are apps for both Windows and MacOS that claim to optimise your system - they are just snake oil - at best they might clean up a few MB/GB of disk space by removing left over junk from the library folder or user profile (which you can do yourself for free if you know where to look), at worst, they might break your system or be spyware. I'm of the view that if your system really is running slow, then although it's a real pain, rather than spend time on all these rubbish apps that claim to 'fix' your system, you'll get much better results doing a clean OS reinstall and just installing only the apps you use. If it needs to swap out some pages to disk then it will do so. If memory becomes pressured (because something wants to actively use more memory) then the operating system will start by releasing caches and compressed pages automatically to make way for the demand. ![]() Then instead of asking why your memory usage seems high, you’d instead be asking why tasks keep disappearing unexpectedly on your machine - that would be much more annoying. Swap is normally only used as a last resort but it is still better to let the operating system swap out pages to disk and do the right thing by itself, because the only alternative is for the kernel to just start killing tasks that are taking up memory. If memory pages aren’t being used then the kernel compresses them in memory to free up space for new processes but still maintain some of the benefits of having fast memory access. If the operating system can keep things in memory (because nothing else is using the space) then it will do so, because memory accesses are much faster than having to pull things from the disk and this leads to a smoother user experience. The kernel knows what it is doing and you really shouldn’t interfere with it. No, it isn’t worth having something to “free your RAM” periodically.
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