My god Gary, thank you! From the bottom of my dark soul. I own a 2020M1 MB pro with 8GB and 512GB SSD. And i was paying exactly attention with having few apps running with 6GB consumed. I was torn when other blogger basically were like, get 16GB and also said themselves: “Uuuh i son’t see difference”. I know now my Mac will do it’s tasks, my email and spreadsheets and tv shows. And serve me long time. Thank you for explaining and not attempting to sell me more than i need.

I came across this video while looking for an explanation how RAMs are getting consumed and this is the best and easy to digest tutorial I have seen by far. Thank you, Gary! Keep it up!

This video is perfect to show people who insist that base Macs with 8GB are basically worthless for anything but very simple uses. MacOS is very good at memory handling, and it can be shocking just how well it will run doing even intensive tasks with very "little" memory.

@ramzizaz

Жыл бұрын

That's what I thought but basic video conferencing in Chrome and sharing screen with 10 tabs open frequently temporarily freezes my video feed. Never had to deal with this previously when I had 16gb

@sundaynightdrunk

Жыл бұрын

@@ramzizaz Chrome is notoriously poor at memory management, especially if running certain extensions. Check and see if the same happens in Safari. Safari is the most battery efficient for Macbooks and the system controls its memory usage.

@fiftyfiftyone

10 ай бұрын

every modern os is very good at memory handling

@Sheelsindhu77907

10 ай бұрын

@@ramzizazuse safari .

@robertodimolfetta5505

5 ай бұрын

@@Sheelsindhu77907 thanks now i am always below 6gb and battery will thank me i guess. I never thought about Safari for saving ram and battery 🤦

This is a brilliant video Gary, A lot of complex subjects explained very understandably. Thanks

Really love this video! Great information Gary! Reminds me of reading a news group article (when I used to peruse through news groups) that stated that Unix will try to load and use all memory available for greater efficiency. I do not worry about all of the memory being loaded because of this.

This is the best description of Memory Pressure. I have the M2 MBA with 8GB ram and have noticed lately with a few tabs open, KZread, Music and Safari tabs, the pressure would turn to red. Which is very frustrating. Then there are other days when I will have similar tabs open and the pressure remains in green and there is no lag. Which of course means I should be doing less at one time but then again I feel that having 3 tabs open is not much at all. Keep up the great work and thank you for breaking down this feature and what to do and what not to do.

Fantastic explanation. Glad to learn this! Thank you. My 8GB M1 MacBook Air can run A LOT more at once than I knew. I have to push it on purpose and even then it's hard to slow it down. In normal use, even heavy, it never slows.

This is exactly what I expect in a video, where unlike other videos its not just talks, however some demonstration to back up the talk. Why do useful content don't receive any appreciation and the views that they deserve, while the contents which are just used from one video to the other get millions in views. Anyways.. great video and thanks for the information. Subscribed!!

A very useful and informative video tutorial today! Thank you, Gary! 👏🏻❤️

Gary - Just came across this video. WOW, what a great in-depth video. Thank you for all the work I know you put into your videos.

A very clear, informative video Gary. Thank you.

Excellent presentation on how the memory pressure works!

Excellent instructional, Gary. Well done.

As a new M1 MBA user, I really liked the clear and easy to understand explanation provided. Thank you 🙏 👍😎🇦🇺

Another excellent video! And it was good to hear you say that it’s not all or nothing :-).

Great explanation, well presented. Thank you!

Man, you sure are good at explaining things, Gary. Thank you.

Great video and fantastic explanation, earlier for few weeks I regreted for picking up the base variant of m3 macbook pro with 8gb ram , it’s been two months since I bought, until now I haven’t faced any slowness and the latest chip is having a dynamic cache feature , I tried running a docker app with some heavy llm , which took around 9gb of swap memory and never turned to red and not even a heavy fan sound. Now I understood the concept behind the memory management.

Thank you so much for explaining this. This is the best video out there!!

Thank you, sir, a most informative explanation. All your videos are great. Some just stand out even more because you outdo yourself! 🙂

There was a time when I regretted getting a MacBook 8 gigabytes of ram. But, shortly, I realized that having less ram encourages you to manage it better. As a result, your future mac with even more ram will "thank you" for not overwhelming it with highly demanding unused stuff.

@brackpersian

4 ай бұрын

Coping hard

Excellent tutorial. First time I really understand how Mac memory management works,

Finally a proper explanation for this topic. I really hesitated to buy M1 8GB MBA especially that 8GB on windows wasn't really enough for the programs I use (app development). The 8GB on macos have been more than adequate for the work I do (memory pressure rarely goes to red).

I learn so much from you. Thanks heaps!

Thanks Gary….very interesting & informative.

The best information I've heard on KZread about how Mac uses memory, you forgot to say that the architecture of the operating system says unified memory. Since I use Lr , Ps and some plugins, I ordered a Macbook Air M1 with 16 gb of memory & 512 gb SSD. Thank you for clarify this issue. No noise in my studio and it doesn't get hot. Beautiful machine.

Excellent presentation Gary.

I think this is a really ... understandable ... explanation of what is going on. This is a really good video.

Hey, Gary! You're amazing! Thanks!

Great video, great explanation! I’m using a MacBook Pro 16 M1 Pro 16ram for video editing, 4K 60fps HDR combined with some drone, GoPro and Insta360 shots sometimes. Never heard the fans in this Mac 😀. Sometimes, when exporting or rendering some complex effects or transitions I saw include 10GB ram swap and is in orange zone, but is working very well, no complain at all. Sometimes I see a short red bar in the graphic but in general and most of the time is green.

Excellent explanation! Well done : )

Great video. Very well explained.

very well explained. Thanks

Thanks Gary …. Really helpful info!

Thanks, clear and easy explanation

Thank you so much for this video !!

Amazing video! thanks a lot!

Thank you, I have an M1 MacBook Air. I found that an app called Log+ Options was using nearly 2 GB of ram just sitting idle. This is the app for my MX Keys and MX Master Mouse. I only need it when setting up the keyboard and mouse. Yep. I killed that app. Memory pressure went way down. I run my whole crappy KZread channel on an M1 MacBook Air. I will not upgrade it until I need to. Right now, it runs Lumafusion, Kdenlive, Canva, notes, pages, etc just fine. I even use Safari to access the KZread channel. I haven't opened Chrome up in weeks. Anyway, thanks Gary. Your channel has taught me a lot. (I have been a Mac user since 2011 or so)

Great channel Gary! Cheers

Very informative video. I recently upgraded my MacBook Pro M1 Pro with 16 GB of RAM because I run a Windows 11 VM through Parallels, and I noticed the memory pressure frequently in the yellow. I was torn between 32 and 64GB for the replacement, but this video makes me feel better about 32. I’ve been using an application from Trend Micro to monitor my RAM usage, but that looks at overall usage and not memory pressure. It would show I was using 90% of the RAM, which pushed me to review the memory pressure.

Very informative video. Thanks =)

You just saved me so much money. Thank you

Wonderful explanation! 👏👏👏👏👏👏👏

Alright love that spirit. Thanks for the wonderful job.

Useful info, thanks. I'm planning to upgrade to an M1 MacBook Air in the next week or so. Trying to decide whether I need 16Gb. Looks like 8Gb will be fine.

Great lesson. I know I've overreacted before, and closed tabs and apps I probably didn't need to.

Thanks for uploading MR GARRY I am a great fan of you from INDIA.

Thanks so much

Thank you very much. Now I know: I was so wrong all the time - and always bought the 64GB RAM MacBook Pro 🤣. It uses a little bit of swap (some 100 MB) - but the pressure diagram is always green and very low. Even when Xcode is running and consuming more than 1GB.

Great video. Thanks

very practical advice!

Superb explainer!

Very useful, thanks

This is truly FASCINATING stuff!!!!! So technology truly has come very far, it seems it's just very subtle and well hidden. I love it. I can't believe they optimise everything!!! Having apps 'negotiating' with the system for memory is absurdly fantastical. I've always thought every app only used a certain amount of memory and that was that. Thank you for the video!

So, I have a "new" M1 2TB 16GB iMac and typically run several tabs along with Mac Mail. I lave less than half the tabs you had open in your explanation and yet I too often notice lagging and get notifications that several of the tabs are using a lot of memory. They are hardly any different than what you demonstrated but I am constantly running in the 'Red' with the Activity Monitor. I feel I should have never "upgraded" from my 2017 iMac w/2TB and 32GB of memory. I could have 50 tabs open and never run into any slow down or lagging as I see now. I totally realize that this is more of complaint and I apologize for that. I do want to thank you for all that you publish. I find so much of it very helpful and educational. Thank you sir.

@macmost

Жыл бұрын

Do you have any browser extensions installed? Is this Safari or Chrome? What is in the tabs?

That was so helpful

Excellent Very helpful

Little tip coming from Unix world, if you need to free up some cached files, just open terminal and write "sudo purge", enter your admin password and the cache will be cleaned. Really nice video, as always! Thanks a lot!

@macmost

Жыл бұрын

Don't do that. It shouldn't cause any harm, but cache is useful for speeding things up. When you purge the cache it is basically asking apps to rebuild their caches again. This will slow things down in your apps in the short term, and make no difference in the long term as the caches will just come right back.

Your videos are just always so useful. May I request a few topics for the future: 1) which screen colour profile to use? (sRGB, P3, standard RGB, etc) 2) battery usage of safari vs other browsers 3) best way to run windows on a mac

@macmost

Жыл бұрын

1) Use the default unless you are a video or graphics pro of some sort and need something else. 2) Not sure what to say about that, you can test for yourself but browsers are constantly getting updates. Safari is generally considered the be best. 3) With the new M-class processors you can't run Windows anymore, unless you count testing betas of ARM-based Windows in virtualization software. But not something a typical user would do.

Thanks for this... I know better now

very useful!

Yet another revelation. Thanks 🙂

I watched a number of videos before this one trying to figure out how my MacBook was using it's 8GB of RAM and they all gave generic explanations which didn't help at all. One guy spent half the video explaining what RAM was and then ran a benchmark on an 8GB and 16GB model which had nothing to do with RAM. Thanks for making this video 👍🏻

Thanks Gary. Does tab groups also use the compressed memory principle, or is there another method? Could you please explain the memory usage of tab groups?

@macmost

Жыл бұрын

Tab groups are just a way to organize tabs in Safari. I don't believe they are any different than having all of your tabs in one group like before.

Hi Gary, another great “just the facts” description on a complex topic, very helpful. I have a question, though. I have noticed that Finder, I think since Monterey, has been using more and more memory over time when I am either searching large drives or using quick look on video files. Closing the windows doesn’t help, I need to restart (alt right click) Finder to clear it. Eventually, I will get into the yellow even when all other apps are closed. Have you ever noticed this? Or any other thoughts?

@macmost

Жыл бұрын

Yes, this is a widely known issue with searching in Monterey. Doesn't affect most people, but it sounds like you do enough searching to have it affect you. Hopefully fixed soon with Ventura.

Thanks Gary I will investigate .

Thank you

Thanks bunches

Hi Gary, thanks for these helpful videos. I'm going to buy a MacBook Air soon, but I only have the option for 8GB RAM. I'm sure I'll be just fine with 8 gigs since I'm not planning to do demanding tasks on it, but I'm concerned about longevity of it since I think the need for RAM of apps will increase over time and my Mac will get laggy a few years later. I'm planning to keep my device for 5 to 6 years.

@macmost

Жыл бұрын

That's conventional wisdom: You'll need more memory in the future. But it isn't necessarily true. Depends how long you want to keep it. If you want to use it 10+ years from now, then maybe. But then you are just spending money today, rather than in 7 years when you could upgrade.

@AmirATGC

Жыл бұрын

@macmostvideo Thank you very much ❤

@WOLFSCHRAMM1

Жыл бұрын

Go for 16gb, apple has horrible web browser support, if you plan to use chrome or anything based on its browsing engine, it will suck your memory like a vampire

you've put my worries at ease my friend and I am so thankful for you're hard work and please do continue posting good quality videos. I was so worried because I got the MacBook Air with only 512gb ssd and 8gb of ram and it was showing that my MacBook was using 5gb to 6gb of ram to run these app and I was so scared because I threw the original packaging away. I'm still watching the video but the little that I've watched so far its putting my worries at ease. thank you so much

@SilentStorm401

10 ай бұрын

now that I've watched the video I can confidently say that I'm happy with my MacBook Air M2 purchase that I made. the creator of this video open 40 to 50 tabs on safari had some other apps on the background, all I can is that i only use 3 to maybe 6 tabs a day and I have nothing running on the background so I'm stress free and the faster storage of the 512gb ssd that has double the speed on the base ssd on the MacBook Air which is 256gb will help out a lot when multitasking. a lot of KZreadrs tested the base model MacBook air which has 8gb/256gb and said that it was great for them.

@macmost

10 ай бұрын

MacBook Air/8GB/512GB is exactly what I have and it doesn't let me down.

@SilentStorm401

10 ай бұрын

@@macmost here's what I think, if KZreadrs can get buy with the base model m2 MacBook Air with just 256gb/8gb and they say its great for them than Im good to go. Because I don't do anything intensive, i just open 2 to 3 tabs using safari. 1 tab is for reading a book, the other one is for Spotify, KZread and that's it for me. I know that you do more things that i do that are way more intensive than I do and you have the same specs as I do, so I don't have to worry. thanks for making the video and replying to my comment.

Thank you very much for this video. I have had a Macbook 2009 until two weeks ago and i sold it (2GB RAM lol). Still worked fine. Now i want to make this air m1 8/256 last for 10 years or so, from now. Do you think in the future 8GB could be a problem? The most RAM usage will be for editing some HD video once in a while. Thanks again.

@macmost

5 ай бұрын

Hard to say. 5 years from now some killer app could change things. But for now it works pretty well for most casual use.

Great video. I’ve learned something I’d never even considered in my 9 years as a Mac user.

Thanks

Finally a KZreadr that actually knows what they’re talking about. 🎉

Thanks. Awesome video! Still wondering if all these processes tax the components too much. If so, will that affect the life of the computer?

@macmost

7 ай бұрын

Not really. I mean any time you press a key on your keyboard (mechanical movement) or do anything with your Mac (heat generated) it produces some wear. But you didn't get your Mac to put it in a sealed envelope in a drawer, right? You bought it to USE it to get things done.

Interesting. New info for me. Would be nice also to know other things in activity monitor such as CPU and how they are related if. Also was wondering if fans get on from memory used or from something else ? Unfortunately I have full storage but its all fine. Wondering if windows computers operates same ? As it seems same ram amount for same apps but devices get slow from few tabs not like macOS.

@macmost

Жыл бұрын

Fans go on when the internal parts of your Mac get hot. That mostly happens from CPU use.

Thanks, Gary. A very informative video. I am puzzled by a couple of points you raised. One is you referred to the SSD for file swapping. My 27" iMac is not what I would call old. It is from 2019. But it only came with a HDD as standard. I think probably one of the last models to do so. At the time I needed to replace my 2009 iMac (which still runs reasonably well, by the way) an SSD model wasn't an option and I couldn't wait another year until they became available. I'm sure there are many other users with HDDs in their machines and yet you only referred to SSDs as though HDDs went out with the ark! The second point is that I use Logic Pro and having loaded a large set of orchestral samples I find the app often comes to a stop when playing tracks because the information is more than it can handle. I am about to order a memory upgrade which is commercially available. There is an access door at the rear of the iMac which, when removed, I can slot in new memory cards. So I am puzzled why you said that it is no longer possible to add more memory to Macs.

@NeilVitale

Жыл бұрын

Aside from Mac Pro, iMac is the last machine that lets you upgrade your memory. All the laptops and even desktops now have the memory soldered into the board and thus it's not possible to upgrade it.

@nidostar2013

Жыл бұрын

@@NeilVitale thanks. I wasn’t aware. But I can’t help thinking that’s a retrograde step.

@macmost

Жыл бұрын

You have one of the last Macs that could come with a HDD (there was an SSD option). You can't buy a Mac with an HDD anymore. It will definitely be slower because of this. But it was also one of the last Macs where you can upgrade the memory, so doing that will help.

@paulhorn24

Жыл бұрын

He was talking about the current Apple computers to not be able to be upgraded with additional hardware like memory modules or hard drives. He was not talking about Apple computers sold years ago who had that opportunity.

Gary, what is a good guide for selecting the amount of memory to purchase on a new machine M1 or M2 and do they use memory differently than prior processors?

@macmost

Жыл бұрын

The M processors are excellent with memory. It really depends on what you use your Mac for and what you can afford.

Amazing video, question what hard drive space do you have 512? or 1TB?

@macmost

Жыл бұрын

On my main Mac I have an internal 2TB SSD.

By the way I love those iMovie tutorials.

Very good video. I just missed your comment on whether or not memory swap should be avoided because it could cause wear and tear to my ssd. Is that true?

@macmost

Жыл бұрын

Don't worry about that. The SSD is built for this. That's like not driving your car anywhere because you don't want to put wear and tear on the engine.

Great explanation! I recently got an M3 Max MacBook Pro with the 36GB of memory. I am in yellow for memory pressure some of the time, especially when doing WPF Windows development, via Parallels, running a Windows 11 Virtual Machine (VM) for my software engineering job. It concerns me especially if I ever need more memory for running more than 2 Operating Systems at once, am running many docker containers, or Linux VMs in addition to a Windows VM instance. 36GB still feels like enough to run my daily workflow smoothly and I have not noticed instability while using the computer. Good to know that compression and swap can still be used to push my Mac's memory even further but I still think 8GB for a MacBook Pro is bad, especially as a professionally oriented machine, and since you can't compress or allocate swap for virtualization software the 8GB would be completely unusable to me with my current workflow. Not to mention the memory is shared between the cpu/gpu and you can't upgrade the memory later, which I also think is ridiculous for a computer that can cost over $7k.

@macmost

2 ай бұрын

Yes, running a development environment in a VM uses a lot of memory. But in the yellow is fine. It shouldn't concern you any more than driving at highways speeds in a car: your Mac is built for it. The vast majority of MacBook Pro users are NOT working with WPF or a VM. Most don't even know what those are. That's why Apple makes the base model available. One of the reasons the Mac is so fast is the way the memory and SoC are integrated closely together. The market slice would be small for wanting: upgradable but slower RAM, not wanting that RAM at the start but years later, keeping the Mac for many years even though they want top-of-the-line.

@Thomas-po4ex

2 ай бұрын

@@macmost I agree that the kind of workloads I do with my Mac are not typical and professionally oriented users will know when purchasing a new Mac the kind of memory, storage, and performance demands that may be needed at the time of purchase. The MacBooks using an SoC has clear advantages with the increased performance and efficiency it can deliver. Definitely a factor in why I purchased my MacBook over another laptop. But Apple has been selling the 8GB model for many years now, ram demands have only grown with time, and the ram limitation has only been made worse with the M series chips since the memory is shared between the cpu and gpu. I think Apple should move the base model into being 12GB or 16GB as that would give everyone more room to work with and not cost much extra from Apple. But I am also not a casual user and would not buy a computer with 8GB of memory knowing that would not be sufficient to my usage. The 8GB can still be sufficient for many users.

I'm using Mac Air M1 base model (8/256). With my daily workflow, my memory pressure is always yellow. Should I be worry with SSD health/usage due to high swap? Or should I change my 8GB Mac to 16GB Mac?

My 8gb Macbook Air 15 has exceeded my expectations despite only having 8gb of RAM, but I wish I got the 16gb but it's not readily available. Right now my swap is at 11gb but the system remains reasonably responsive. Memory pressure mostly stays at yellow and occasionally spikes red.

So, though I don't need to worry about my iMac reaching its swap value but can a macbook user use some NVMe storage and allot it to the swap space for a little better pressure handling?

@macmost

Жыл бұрын

No. You can't use external storage. Even if you could, it wouldn't work as it must be super fast.

This is a great video, thanks for sharing. One thing I have noticed when I am using Safari... I get a message telling me "this browser is using too much memory" and it slows down Safari a bunch, I check memory pressure and its in the green. Why that message? Also, WindowServer is the one that uses the most memory. What is window server?

@macmost

Жыл бұрын

Are you using the latest version of macOS? How many tabs are open and what are they showing? Do you have any extensions installed for Safari? WindowServer is the task that displays and manages windows. So the more apps and windows you have open, the more work it has to do. It is typical to see it as one of the top processes.

Good video. If this is all correct then why does imac constantly gets the spinning ball syndrome? What else is causing this issue? Thanks

@macmost

Жыл бұрын

Probably an app that is misbehaving or your storage is almost full (no room for swap). See kzread.info/dash/bejne/apeCmpqfnZqxg5M.html for some more ideas.

Excellent video, when I run Pathfinder, Devonthink, photos, chrome my system often gets very laggy. Now I know at least for Tamara regarding memory, working with Apple Engineering they had me uninstall Acronis backup software as they said it was regularly crashing. CleanMyMac regularly reports low memory and now I know how to verify it. Thanks for a great video. Amy idea on how an average user can see what apps are crashing?

@macmost

Жыл бұрын

I would uninstall any "cleaning" software too. That would be the first thing I would suggest to anyone with a laggy system (or even if not). You don't need that. Usually if an app crashes you get a message and then the app isn't running anymore anyway. How many tabs do you have open in Chrome?

@SteveUrich

Жыл бұрын

@@macmost I try and keep my chrome usage to a minimum, when I do use it I typically only have about 4 tabs open. I use Safari typically and can have 25 tabs open but they are not doing anything so I didn’t worry about their memory usage, maybe I should?

@macmost

Жыл бұрын

@@SteveUrich Use the techniques you learned from this video and look in Activity Monitor and see.

That was a very informative Video. I‘m having trouble with an 3000+ pages pdf file. Wonder how much pressure it really gives to my M1 MBA 8/512…

@macmost

Жыл бұрын

Why not look and see? Are you opening it in Preview or something else?

Nice content as always. I would like to know why doesn’t mac release the swap memory used to zero completely after all programs are ended. I need to restart the mac to get the swap used back to zero!

@macmost

4 ай бұрын

You don't need to restart your Mac. No need to "get the swap used back to zero." Just let the system handle the memory. By trying to manually manage it yourself you are getting in the way of its optimizations. There is never am "all programs are ended" on a computer as it is already running the system, Finder, background tasks, management, etc.

great video..how come the system does not like unused memory?

@macmost

5 ай бұрын

Memory can always be used to speed up what you have running. To not use all of the memory means your Mac isn't running as fast as it could.

Gary when does system observe thermal throttling??Is it related to memory pressure?

@macmost

Жыл бұрын

Thermal throttling? That has to do with temperature (the "thermal" part). It is not related to memory pressure. It is when you Mac gets too hot and the CPU slows down to stay cool.

Another wonderful tutorial. Can you comment about app memory leaks ? Can Montery for instance detect memory leaks from specific apps or dynamic run time libraries ?

@macmost

Жыл бұрын

"Memory leaks" is a general term people use that usually means that an app is using more memory than it needs to, and perhaps keeps using more and more memory as it runs. There's no way for the system to know if memory use is needed or not from an app. Unless you are an engineer, there's not much you can do other than noticing if an app is using too much memory (CPU, energy, disk space, etc) compared to how useful you find it.

@pedropuckerstein4670

Жыл бұрын

@@macmost Thank you - I guess then that Monterey doesn't detect memory leaks, which usually continue to grow if left unabated or eventually cause the app to crash. I do think that it is possible to detect memory leaks and perhaps put out a warning or to restart the offending process. In my parlance, a memory leak is when an app or an executable does not release memory appropriately and keeps asking for more. I have found it is more prevalent in higher level languages, such as C++ vs. C, for example, and when apps are multi threaded, etc. I have noticed that early on Skylum products and to a lesser extent Affinity Photo would crash and I have assumed it was due to a memory leak, re: bug. Never the less, your tutorial was excellent.

@macmost

Жыл бұрын

@@pedropuckerstein4670 You will get a warning if an app uses all of your memory, yes.

@toadlguy

Жыл бұрын

To actually detect memory leaks requires using More memory, so you wouldn’t want it in your operating system. XCode and other developer utilities can help the developer find memory leaks. If you are noticing that an app keeps using more and more memory over time, it probably means there is a memory leak, but it could mean that the app is “over” cacheing files or graphics. Either way you should let the app developer know.

@pedropuckerstein4670

Жыл бұрын

@@toadlguy A robust system should be self healing and there should be a watchdog program to prevent crashes due to memory leaks. Apple can thank Thomson and Ritchie for inventing UNIX which as you know can run 7x24xforever without operator intervention. Unfortunately every program has bugs, it just takes time for them to surface, all the more reason why the OS environment can be used to detect, correct, and collect pertinent data so that developers have a clue, else they will simply close out any trouble ticket with the standard "trouble not found" conclusion. No level of company system test can emulate end user use cases nor replace the "real world" test environment. I would hope Monterey records appropriate log files under these conditions.

The use of memory of some apps seems to grow like Apple Mail. For example, it was taking up 214 MB. I closed it down and opened it up again. It is now at 101 MB. It may be that some apps have poor memory management where heap memory is not being deallocated when it is not being used anymore.

@macmost

7 ай бұрын

Memory doesn't work like that today. Unused memory is wasted memory. It isn't using X MB of memory because it needs to, but because it is available and it would make this faster or smoother for you. That's why memory pressure is more important and how much memory is being "used."

Very Well explained and very useful, Please do a video on How Mac OS Works, Thank You

@macmost

Жыл бұрын

Which aspect of macOS? Basically my entire channel is "how macOS works."

@AriseRayamangalam

Жыл бұрын

@@macmost I have watched most of Your videos but there is no video in KZread explaining how Mac Machine and Mac OS works internally. Can You do a video on that ?

@macmost

Жыл бұрын

@@AriseRayamangalam That's a very vague question. A computer is a very complex machine, and operating systems are very complex pieces of software. It would take volumes of books or years of lecture time to explain everything about them.

@AriseRayamangalam

Жыл бұрын

@@macmost Just curious to know that’s all, I will try other ways, Thanks

Brilliant video Gary - I didn't even know what memory pressure was before. I notice Apple call it "unified memory". Is that unique to them or just a fancy Apple name? Is all memory "unified" these days? I've googled what it means but can't say I fully understand this sort of thing.

@macmost

Жыл бұрын

Unified Memory is a term that relates to the hardware of your Mac, not the software (macOS) which is what I am talking about. It is about the M1/M2 processor (this video is about any Mac, including Intel models). The M1/M2 is a system-on-a-chip (SoC) so things like the CPU and GPU (and much more) are all together on one chip. The memory is separate, and can be used by any of the things on the SoC, unlike on an Intel model where the CPU and GPU may have different RAM they use.

@nickrich10

Жыл бұрын

@@macmost Thanks for the explanation Gary.

Thanks for the info. I just noticed there is a "root" under User on the Activity Monitor Memory. Wonder if my iMac has been hacked? If so, how do I get rid of it?

@macmost

Жыл бұрын

No. root is basically the system. You can even see root in my video here.

I was shocked to run into severe memory pressure with my new 14” MBP with 16GB RAM, when trying to import video clips into iMovie. I had already imported over half (~2 hr. worth of) the Clips from a 40GB AVCHD file from a Sony Camcorder w/o a problem, but then tried to add more clips from it later, & iMovie completely hung up, with a Memory error message (which may have come from iCleanMemory App-not sure). Activity Monitor showed severe pressure. Is iMovie the culprit, and I just need to byte ;’) the bullet and purchase a Pro video editing App?

Hi, It is a good video thank you. I have a question. what do you think, which is sensible M2 Macbook pro 13" 512ssd 8gb RAM OR M2 Macbook Air 256 ssd 16gb RAM for future and daily using? (The prices are same)

@macmost

10 ай бұрын

You didn't tell me anything about what you are using it for. I don't know if you are a student writing 2-page papers, or a 3D graphic film artist rendering 2-hour movies. But, whichever, don't get one with 256GB of storage. Even a modest amount of files and photos will mean you'd be relying completely on iCloud Drive for your files. I recommend always spending money on storage first, before memory. See kzread.info/dash/bejne/a46jqcFtdrfNeKg.html where I talk about this. The newer Macs handle memory so well.

So is using swap ok if I’m still in the green on memory pressure?, not sure if a couple of GB swap is misleading if it’s green. Can I assume swap will destroy my SSD in the long run or is it ok? I’m using an M1 Pro 16GB 1TB SSD MacBook Pro and barely use any storage.

@macmost

3 ай бұрын

Yes. Swap is almost always in use. Swap will not "destroy" your SSD.