Memory Management For Macos

 
Memory Management For Macos Average ratng: 7,6/10 2876 reviews

Feb 11, 2019  Memory (RAM) and storage (hard disk / SSD) are not related to one another. That Mac has plenty of available storage.If you are running low on memory Activity Monitor can be used to identify the memory-intensive processes causing that warning. To learn how to use Activity Monitor please read the Activity Monitor User Guide.For memory usage, refer to View memory usage in Activity Monitor on. May 26, 2020 In macOS Mojave or earlier, choose Apple menu System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimize Mac Storage settings. In Photos, choose Photos Preferences, then click iCloud. Store in iCloud selects iCloud Photos and Optimize Mac Storage.

This article was nominated for deletion on 2010-05-03. The result of the discussion was keep.
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Maco Management Company

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Untitled[edit]

I apologize if my English isn't perfect, anyway, I think is at least understandable.Motorola MC68000 isn't a 'full 32-bit' processor; it has only 24-bit wide address bus.It is incorrect to say '24 lines allow addressing up to 8MB' because 24 lines allow to address up to 16 MBytes of memory (any kind of course). The reason of the 8MBytes limit is due the way the memory map was structured on '24-bit' Macs (http://www.osdata.com/system/physical/memmap.htm#MacPlus).Because of this MacOS 7 is able to address more than 8 MBytes of memory (4MBytes RAM + 4MBytes ROM) only on the models equipped with 'full 32-bit' processors.I know my english is simple. Please feel free to improve it in any way.Please let me know (here) if anybody of you think I'm wrong somehow.- 213.203.155.204 18:04, 1 January 2006 (UTC)

Management

The tone of the article worries me slightly..the author(s) seem to assume that Apple refused to change the memory manager out of pure stubbornness or pig-headedness. I think it more likely that Apple assumed all along that some radically new OS would supercede the existing Mac OS (as OS X eventually did) and that it would not be worth the trouble to rewrite the entrenched memory manager. -Astrovan

Some developers were already indicating their displeasure at the way memory management worked as far back as 1989 or so (possibly earlier, but that's when I became aware of it). At that time System 7 hadn't even been released, and it certainly didn't address the issue. In fact by making MultiFinder a non-optional part of the system, it made the situation worse. There were some third-party extensions that replaced the memory manager (Optimem), which showed that it could be changed - though it's true that Optimem caused some compatibility issues with some apps - but then they didn't have the inside story that Apple themselves would have had. In 1992 some colleagues and I had a lengthy discussion with some Apple engineers at a developer seminar about the situation, and we outlined a scheme to them that we thought could have worked. They agreed it was a workable idea, but told us that backward compatibility would be too difficut to ensure, though we didn't really buy that, since our plan provided an identical view of the system from the app's perspective. Perhaps they knew that it really wasn't apps they were worried about, it was system code that was taking liberties - it's come to light much more recently that a lot of it was undocumented, uncommented and certainly unmanaged. However, despite this their tone was very much along the lines of 'you boys shouldn't meddle in grown-up's business, now go away and leave it to us, we know what we're doing'. We found it patronising to say the least, especially as clearly the implementation that the 'grown ups' had come up with sucked so badly. OS X totally replaces the memory manager though implements the same APIs in Carbon, so it shows that a different plan could have been dropped in underneath without compromising API compatibility - and provided apps stuck to the rules that Apple had promoted since the first public issue of Inside Macintosh, they would not have had a problem. Apple's other sticking plaster 'solutions' to the problem - temporary memory and so forth, as well as the seriously crappy virtual memory scheme in System 7.whatever, simply added to the problem in spades. It's a moot point, but they really should have bitten the bullet and fixed it with System 7, even if there would have been some bumps in the road as a result - they did it with the 24 -> 32 bit thing, 68k -> PowerPC thing, and others, so why they were so stubborn about this is hard to fathom.Graham 08:00, 5 Sep 2004 (UTC)
I agree with the points made by Graham, however, I do believe that the article does not contain a level of objectivity that is desirable. While Graham makes perfectly valid points, they are still points of personal opinion, which could be done without. If this article was more objective, then perhaps it would not seem to people that Apple was 'stubborn or pig-headed'. For instance, instead of saying 'Apple did a bad thing' we could say 'It was some people's opinion that Apple did a bad thing', the latter keeping a neutral point of view. This would be quite an interesting (and by that I mean 'boring') task to do, but it would give this article quite a nice polish. --huwr 08:51, 6 Sep 2004 (UTC)

I am deleting this:

In fact this demonstrates conclusively that it was possible to change the model all along without a major compatibility issue, which was always Apple's defence for keeping the original scheme.

because it is, pardon me, bullsh*t. The 'compatibility issue' was that applications were reaching into private memory manager data structures, patching traps (in many cases, Apple could not change the order in which purely internal routines were called by portions of the toolbox without breaking important third-party applications), directly reading low-memory globals, in other words, generally violating encapsulation. This was a problem for the entire Mac toolbox, not just the memory manager.

All of that compatibility nightmare still exists -- in the Mac OS 9 emulation layer (Classic.app).

In Carbon on Mac OS X, Apple could do away with all the cruft because there is no binary compatibility with old applications. Carbon apps may run on Mac OS 9 -- but the version of Carbon on Mac OS 9 is a compatibility shim that still uses the old implementation underneath the modernized API calls. Only in Mac OS X could Apple fully do away with the old implementation.

(If you must have credentials, I was a software engineer on the Carbon team at Apple.) —Preceding unsigned comment added by 213.203.155.204 (talk • contribs) 19:04, 1 January 2006 (UTC)

I think that's fair comment. But since Apple were already aware that there was a problem as far back as the late 80s, there is no real reason that Carbon or so0mething very like it could not have been instigated then, rather than waiting for OS X (and which, I seem to recall, was forced on them by some high-profile rebellious developers who refused point-blank, and quite reasonably, to port their code to Cocoa). Adoption might have been slower since there was no clear benefit in the short term, but Apple could have done it. I think that's the point. Graham 03:44, 2 January 2006 (UTC)
That's not really the topic of the article, though. Your meeting with Apple engineers of course isn't usable in the article because of WP:Verifiability. It's clear that everyone was annoyed by MultiFinder and the lame memory scheme we all found ourselves in; if you feel the need to add citations saying so then feel free. More citation would help this article, though it's hard to find them on programming topics from the 80s and early 90s. Tempshill 23:07, 8 March 2006 (UTC)

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BetacommandBot (talk) 07:01, 1 January 2008 (UTC)

Historic or current article[edit]

Download citrix workspace for mac catalina. Does this article reflect the current state or is it a historic article about pre OS X era? If so it should be renamed IMHO. —Preceding unsigned comment added by 217.110.199.118 (talk) 10:18, 28 August 2009 (UTC)

This article is definitely not up to date. There is no description of the 64 bit system used today Agnerf (talk) 05:22, 18 August 2019 (UTC)
Renamed it because it is fundamentally historic. Contemporary macOS memory management methods are not particularly distinctive. On the whole, not hugely different from any other Unix-like operating system. Only Classic Mac OS has such a unique way of managing memory that it deserves its own article in my opinion. (But, if someone disagrees, and thinks such an article should be written about contemporary macOS, by all means go ahead in another article.) SJK (talk) 08:38, 1 January 2020 (UTC)

'32-bit clean' redirect[edit]

32-bit clean redirects here, but there's a similar phenomenon in the ARM architecture and System/360 which also had programs use unused address bits to store data which caused problems when addresses were expanded. — Preceding unsigned comment added by 206.21.52.10 (talk) 07:15, 7 February 2013 (UTC)

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Updated: January 6, 2020 Home » Freeware and Software Reviews » System Optimization and Registry Cleaner

Increasingly both Microsoft Windows and Apple macOS are intelligent enough to manage the amount of RAM available in the system, especially newer operating system such as Windows 10 and macOSX. Memory optimization software is not necessary unless you are still using a very old OS such as XP or you have very little RAM to spare. Works great on Microsoft’s Windows 10 and Apple’s macOS.

Alternative 2020 Article ➤ 7 RAMDisk vs SSD – Ten Times Faster Read and Write Speed via RAM Virtual Disk

↓ 01 – Memory Cleaner X macOS

Memory Cleaner X monitors your memory usage and cleans up your Mac’s memory, increasing performance. Cached memory can take up the memory needed for new apps, and Memory Cleaner X increases performance by cleaning cached memory. Memory Cleaner X also monitors RAM usage on your computer, and you can free up unused memory in just one click. The application monitors RAM usage on your computer and frees up unused memory with one click. With Memory Cleaner X, you can easily manage your memory usage. An animated status icon in the menu bar shows you the percentage of memory being used, as well as memory cleaning being run. Features:

  • Memory usage information displayed in the menu bar
  • Memory usage per application
  • Manual memory free up when needed
  • Automatic memory free up

↓ 02 – CleanMem Free Windows

CleanMem is still a set it and forget program and is totally free. When you install CleanMem it will auto run every 15 min by the Windows Task Scheduler. Once installed it is set it and forget it. Just as it always has been. You can configure CleanMem to do more advanced things such as ignore lists, only lists, and log files. These can be set by the CleanMem Settings program in the start menu.

↓ 03 – Memory Clean 2 macOS

Memory Clean is the ultimate app for optimizing your Mac’s memory and is best used after you have finished using a memory (RAM) intensive app or game. It replicates the feeling of a fresh system restart. Memory Clean works by purging the Mac’s inactive memory and is best used when you close an intensive program that you do not plan to use again quickly within a few hours.

↓ 04 – RAMRush Windows

RAMRush is a free memory management and optimization tool. It can efficiently optimize memory usages of your Windows system, free up physical RAM and make your system work better. RAMRush uses an intelligent way to manage the physical memory and lets the RAM work in a better performance. It will help you to prevent system crashes, memory leaks and keep your computer running more efficiently.

  • Increase system performance
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  • Defragment system physical memory
  • Recover memory from Windows applications
  • Remove memory leaks
  • Prevent system crashes caused by memory problems

↓ 05 – Wise Memory Optimizer Windows

Most PC users have known and unknown applications running in the background that take up your computer’s physical memory and thereby affect its performance. Wise Memory Optimizer helps you free up and tune up the physical memory taken up by some useless applications to boost PC performance. The application requires a pretty low quantity of CPU and system memory, has a good response time and rapidly finishes an optimization job. Better yet, it also has a portable version. You can drop the program files anywhere on the hard drive or a flash drive and run it on any computer without prior install operations.

↓ 06 – Mz RAM Booster Windows

Mz RAM Booster is a program created to improve the performance of your computer by auto-recovering RAM and fine tuning some Windows system settings! It uses minimal resources and almost no CPU time. Speed up your computer, stop memory leaks and increase free RAM.

↓ 07 – Memory Cleaner macOS

Memory Cleaner can increase your free memory with a simple click and monitor memory usage in the menubar. Memory Cleaner is the perfect tool to keep your computer going full speed and helps you to optimize your memory (RAM) usage with a simple click. Memory Cleaner keeps your systems memory (RAM) clean by monitoring and optimizing the memory usage. Helps you to quickly access detailed memory information and diagnosis from your menu bar and CLEAN your memory with a simple click. Main Features:

  • One-click and automatic system memory optimization
  • List of apps with significant memory usage
  • Memory pressure meter and notifications
  • Dynamic and customizable menu bar
  • Detailed memory information

↓ 08 – Memory Optimizer Windows

Memory Management Policy

Lacking memory? Optimize with Memory Optimizer. You’d be surprised how much you can recover! Understand your computer’s memory usage and keep it under control – Memory Optimizer will graph your computer’s memory showing you what’s using it and giving you an easy way to optimize it’s usage. Just click “Optimize” and speed your computer up immediately!

↓ 09 – Mem Reduct Windows

Lightweight real-time memory management application to monitor and clean system memory on your computer. The program used undocumented internal system features (Native API) to clear system cache (system working set, working set, standby page lists, modified page lists) with variable result ~10-50%. Application it is compatible with Windows XP SP3 and higher operating systems, but some general features available only since Windows Vista.

↓ 10 – MemPlus Windows

Management

MemPlus can be used to monitor the RAM usage on your device. You can clear the memory of any non-essential processes by clicking the “Clear memory” button which is visible in the main window. This will clear both the working sets of processes and the FileSystem cache, if enabled. You also have the ability to clear the working set or FileSystem cache separately.

  • RAM Optimizer – MemPlus can be used to reduce the amount of RAM that is being used by applications on your system. In essence, freeing up memory so that more memory is available to you!
  • RAM Analyzer – MemPlus can help recover the specification of the RAM that is installed on your system. This information can be exported in TEXT, HTML, CSV and Excel formats.

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