As others have said, Mac memory is handled in often misunderstood ways, and tinkering is not necessary. Memory cleaning is something I have tried, but have yet to find anything useful about it. Caches were indeed used for a good reason. It's not usually necessary to wipe all caches, perhaps just those affecting individual apps that are troublesome, and they don't take long to build up again. The worst, IME has been CleanMyMac, which can do unbelievable harm to the OS and some apps too (I destroyed a Photos library with it once). I would agree that something like Onyx, which is a very well regarded system tool, could be installed and used, with care and consideration. Of course many of us have probably fallen foul of these practices at some time, so heed the warnings, they often come with bitter experience. Sometimes they can be handy as part of a fault finding process, but they should never be used indiscriminately as routine maintenance. What an odd joy in reading this thread: NO fighting and complete agreement!Īye, although I would say that as a rule it's a bit like the gun argument, the tools are often OK for some jobs, but often they are used inappropriately. Subsequent uploads to the CrashPlan server do not impact my Mac's performance in any way.ĬrashPlan recommends deleting its caches under certain conditions and provides easy directions in the support section on its website. Rebuilding the caches in the background took less than 10 minutes after a restart and my Mac was not noticeably slower as I went about my business. That makes a difference on my incredibly shrinking 256GB boot drive. My CrashPlan caches went from 7GB+ to around 1.75GB. They can lead to massive dataloss and they can also hose your Mac installation, needing a re-install of the OS.Ĭaches do rebuild after they are deleted but they generally do not take up the same amount of space. There is a real issue with these apps for the inexperienced user. If you feel you must "clear the caches" the start in Safe Mode.
Doing so is pointless (they're rebuilt the next time you launch the app), and slows the Mac down (you lose the time it takes to rebuild). The Mac is designed to use all the RAM wherever possible (after all, what's the point of unused RAM?)Ĭaches do not need to be 'cleared'. You can get yourself into a serious mess with anything other than option 1 (maintenance scripts) unless you know what you're doing.Īt all costs avoid MacKeeper - it's malware if it ever appears in a browser popup, Cole the window and move on If you really want to dive into this, CleanMyMac costs money and provides a lot of features.Īl that said, the warnings in the other replies are well founded.
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It's free and has been reliable for a long time.ģ. You can use Onyx to run the maintenance scripts and performa other tasks. You can tun them on demand using Terminal. If you never have your Mac on overnight, they don't get the chance to run. There are daily, weekly and monthly scripts. If you leave your Mac on all the time, there's a set of maintenance scripts that run automatically overnight that check and clean temporary files and other odd detritus. With due regard for all the previous replies - you really *don't* need this kind of app - here are some suggestions:ġ.
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You can also look for other info about how to identify data that can be safely removed to free up drive space and you don't need a utility to do it.
Some reviews are still online with no updates that refer to the security breach. Cleaner garnered glowing reviews on various websites before the security problem was discovered. Such reviews should be taken with a grain of salt. If you are still inclined to use one I would carefully check out the options and read the linked article and other sources about the problem. There are various online reviews about data cleaning utilities. Here is a 9 to 5 Mac.com article about the situation which lists additional apps caught stealing user data. Cleaner is one popular cleaning utility that has been implicated. The data transfer is not necessary for the utility to perform its purported cleaning actions. Some of the apps are available via the Apple App Store. Some utilities have been found to gather user data and transmit it to servers in other countries. You could find yourself trashing files that are better left alone. You need to be careful with "memory cleaner" utilities, particularly if you aren't familiar with the more arcane aspects of the Mac operating system.
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