Decrypting the system drive on an MBP16 M1 and an external Time Machine backup...

I have a 2021 M1 MacBook Pro 16" on Monterey that I've been trying to get working properly for four months now. The biggest issue is with Safari, upon which I depend for my development and testing. I'm lucky if I can get it to run for more than a minute, before I get the "spinning beachball of death" and need to force quit it. I almost hate to say anything, but it seems as though macOS 12.3.1 MIGHT have helped out. (Time will tell.) Regardless, it seems as though my Late 2015 MBP15 running under High Sierra is faster at most things than the 2021 MBP16 M1. It is unquestionably more productive, due to the many issues I'm having with the new one. I know that the internal system disk is screaming fast, but it doesn't seem to be any more efficient overall. That's a BIG disappointment. Lately, I've been wondering if part of the issue is the fact that the new laptop utilizes encryption on both the system drive and on my Time Machine backup. Does the encryption slow things down substantially? Also... is there an effective way to remove the encryption on one or both, without having to completely reinstall the OS (again) and lose the existing backups on the encrypted TM backup? Any help would be greatly appreciated!!

MacBook Pro 16″, macOS 12.2

Posted on Apr 6, 2022 6:54 AM

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10 replies

Apr 6, 2022 7:15 AM in response to svdrifter

svdrifter wrote:

I have a 2021 M1 MacBook Pro 16" on Monterey that I've been trying to get working properly for four months now. The biggest issue is with Safari, upon which I depend for my development and testing. I'm lucky if I can get it to run for more than a minute, before I get the "spinning beachball of death" and need to force quit it. I almost hate to say anything, but it seems as though macOS 12.3.1 MIGHT have helped out. (Time will tell.) Regardless, it seems as though my Late 2015 MBP15 running under High Sierra is faster at most things than the 2021 MBP16 M1. It is unquestionably more productive, due to the many issues I'm having with the new one. I know that the internal system disk is screaming fast, but it doesn't seem to be any more efficient overall. That's a BIG disappointment. Lately, I've been wondering if part of the issue is the fact that the new laptop utilizes encryption on both the system drive and on my Time Machine backup. Does the encryption slow things down substantially? Also... is there an effective way to remove the encryption on one or both, without having to completely reinstall the OS (again) and lose the existing backups on the encrypted TM backup? Any help would be greatly appreciated!!


Once encrypted— there is no noticeable slow down.


To check the status of file vault within Terminal.app copy & paste:

fdesetup status



If you want to disable FileVault :

sudo fdesetup disable



Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus/VPN

all known to cause issues on the macOS



Keep your Time Machine backup disk for Mac secure - Apple ...

Choose a backup disk and set encryption options on Mac


Apr 10, 2022 12:31 PM in response to svdrifter

I am not a daily visitor to the site (my day job has its own demands, and they give me money 😀 were as Volunteers here are unpaid, except a T-Shirt, Coffee Mug, etc... when they reach a given points level 👕 ).


While it can be Safari, it can also be any number of shared frameworks, libraries, and kernel components under Safari.


Isolation testing is a good way to narrow down the issue.


Or Launch Safari holding the "SHIFT" key which should clear any Safari caches. There have been instances of cached javascript creating undesirable situation. Then switch to a different web browser if that does not change things.


Also do you have any Safari extensions installed? Safari -> Preferences -> Extensions


Does this happen when you boot into Safe mode

Start up your Mac in safe mode - Apple Support

If it works well in Safe mode, then what 3rd party software is running in the background, as Safe mode does not start that software. If you are unsure, EtreCheck can give you a list https://EtreCheck.com You DO NOT need to buy EtreCheck, as you can generate a report for free, and if you search the discussions.apple.com forums, you will find thousands and thousands of EtreCheck reports posted (all done for free).


If it is Safari, then switch to a different web browser, at least for those web sites that cause you issues, if there are only a few.


I personally use Safari, as it seems to use the fewest system resources, and I do not experience your issues. Chrome seems to use the most resources. But besides Chrome and Firefox, there is Brave, Edge, SeaMonkey, Opera, and others.


I used Firefox for years, and it is one of the standards at work, but my work Mac was just getting too overloaded with the company mandated 3rd party, always running, Yuck software, that I needed to get back some CPU some how, and switching to Safari helped in my case. I'm also running Brave with just 1 tasks, which is being my Slack interface app, with 2 Slack tabs opened, and nothing else going on with Brave, except the occasional search.


But I'll fire up Firefox as needed or Chrome, and any other web browser if it will let me get my job done.


Apr 10, 2022 8:38 PM in response to Barney-15E

I wasn't doing ANYTHING with Safari... it wouldn't keep running long enough to do so. And there was no "development setup" to cause issues... I was simply referring to the addition of the "Develop" menu (which is a very simple change that should affect nothing).


As indicated previously, Apple apparently discovered the problem and corrected it with the recent update (12.3.1). Following that update, Safari has been working perfectly without ANY freezes.


The "Develop" menu...


Apr 10, 2022 3:52 PM in response to svdrifter

What exactly are you doing with Safari?

I can’t say over seen anything like what you describe on an M1 Mini. Maybe it is the development setup that is the cause of the beachballing.

Any Apple Silicon Mac or Intel with T2 is always encrypted; however, if you look at info on the System volume, it says it is not encrypted. They may have pulled the System volume out of the encryption since it is unnecessary since Big Sur and APFS. .

Apr 7, 2022 6:38 AM in response to svdrifter

Bob,


I do hope you didn't take my previous reply the wrong way. Your explanation did indeed sound quite logical and was greatly appreciated, as I try to recover from this issue which has been very costly to me in both time and monetary regards. I am truly at my whit's end trying to figure this out. I'm on my sailboat and should be in the Bahamas. Unfortunately, since the vast majority of my navigation is done on my MacBook, I've had to cancel my trip as I sit here in an anchorage still trying to remedy the issues with this very expensive addition to my digital arsenal. One can't afford to travel the extremely shallow and reef-filled waters of the Bahamas without a reliable method of navigation. This MacBook has just not provided those assurances!


Admittedly, the last upgrade to Monterey 12.3.1 has eliminated some of the issues I was having, but certainly not all of them. This, in and of itself, tells me that Apple are aware of the problems, even though their Support team makes it sound as though this was the first they've heard of it. That is incredibly frustrating and undermines the logic for my own support over many decades of development and influences of corporate decisions to support Apple products. As a Marketing Manager and IT Development Manager for the Yellow Pages division one of the largest telecommunication companies in the US, I once was primarily responsible for the commitment to Apple products. One might say it feels like a stab in the back to no longer obtain support for my own equipment. No doubt this means little to you... I just wanted you to understand why I find it so frustrating.


Now... I still don't understand why "None of these things are under Safari's control."


None of my other Apple computers ever had issues concerning crashes with Safari. (Unfortunately, this brand new, highly touted masterpiece of technology, is the only one I brought with me.)

While Javascript could indeed be the underlying issue, why would it happen repeatedly even on this site? I would think that Apple would at least try to make their own sites compatible with their flagship computer models.

Apple is clearly aware of the issues, or the most recent release of Monterey (2.3.1) would not have fixed many of issues I previously witnessed... a big jump ahead, but not quite there yet.

As a precaution, I have absolutely NO extensions installed on Safari. New windows and/or tabs open with an "Empty Page". No "Home Page" is assigned. "Favorites" shows an empty bookmarks folder.


Clearly, something must be "under Safari's control", as other browsers do not lock up. Unfortunately, there are aspects of the Safari browser that are critical to my development methodology and to my uses for marine navigation.


Again... please don't take offense by my questioning. I'm only trying to find an answer to a extremely frustrating and expensive set of issues. It is situations like this that have convinced me to keep my 2015 MBP on High Sierra for so many years. It simply works flawlessly and I have not seen anything on subsequent macOS releases that would convince me to "upgrade" (which is an extremely relative term). To be honest, that combination is far more productive than this flagship MBP16 M1. Yes, the internal memory is incredibly fast. But none of the development work I do can benefit noticeably from that enhanced speed. Over the years, I have replaced the battery in the 2015 MBP15 twice. And rather than buying the new one, I should have just replaced the internal keyboard in my workhorse 2015 MBP15 that started giving me issues. I have a new one in my inventory, but since absolutely everything else has to come out in order to replace the keyboard, I decided to invest in a new model instead. At this point, I'm convinced that this was the worst mistake I ever made!


Thanks in advance for any additional comments (or better yet... creative solutions).


Apr 10, 2022 2:45 PM in response to BobHarris


Thank you, Bob. I am not a daily visitor to the site either. I once was, under a different ID, but somehow that ID no stopped working after the purchase of a new MacBook Pro some time ago.


Note that the original post for this was as follows...

Safari freezes on startup in Monterey 12.2 - Apple Community


Note also (as indicated in the above-noted thread) that ALL issues magically disappeared with the release of the 12.3.1 update to Monterey. Hopefully, this was due in part to the many dozens of Crash Reports that I diligently forwarded to Apple. Since nobody replies to these I'll never know. But presumably somebody (or some process) does analyze them.


Regarding your specific suggestions...

  • No shared frameworks, libraries, and/or kernel components under Safari.
  • I performed considerable "isolation testing".
  • Safari was used as bare-boned as possible.
  • I cleared all caches numerous times.
  • No cached javascript whatsoever!
  • All Safari extensions were removed long ago.
  • Issues never occured on other web browsers (although I typically use nothing but Safari).


Your followup was excellent and greatly appreciated. I tried to designate the solution to you, but could not for some reason. I thank you kindly for your diligence, nonetheless.


Jack




Apr 6, 2022 1:20 PM in response to svdrifter

The Spinning Beachball is when the app does not service the event queue in a timely manor. The cursor driver can look at an apps system event queue and see that it is not draining, and thus change the cursor to a spinning beachball as it passes over an app's windows.


A spinning beachball generally means the app has gotten hung up doing something it fully expected to be finished with quickly, but instead got stuck.


For an app that does network access, it is generally network connections that should complete quickly are taking a long time.


With a web browser, it can also be the Javascript that is downloaded from the web site.


None of these things are under Safari's control.

Apr 6, 2022 4:19 PM in response to BobHarris

That all sounds quite logical, Bob. But, if "none of these things are under Safari's control", why would it ALWAYS with Safari 15 running under macOS Monterey, but it NEVER happened (nor happens now) while using Safari 12/13 under macOS High Sierra. It doesn't matter how long I wait, the only way to get out of it is by switching to another application, wherein I can access and launch "Force Quit..." from the Apple menu. How is that logical?


Thank you for the well-worded explanation nonetheless.


PS: This is my 5th attempt to reply. The previous attempt froze during "Post". But this time it didn't completely freeze the app... I just received a les obnoxious spinning blue ring, instead of the "pinning beachball". AND I was able to open another browser window and/or refresh this page and repeat the reply. I suppose that's progress, but it doesn't do a whole lot to restore my productivity. ;-)


Correction... 6th attempt. I finally had to quit Safari, restart it and reply in an entirely instance of Safari.


Correction... 7th attempt. I finally had to quit Safari, and reply using Firefox!


Apr 6, 2022 7:53 AM in response to leroydouglas

Thank you, for your quick response, "leroydouglas".


~ > fdesetup status

FileVault is On.


I have never used encryption in the past, but since I am now cruising in the Bahamas on my sailboat 7 mo of the year and traveling in my RV the other 5 mo, I thought it might be wise idea to do so. Is the data actually encrypted, or only the access to it? If it's the former...


  • Is the decryption performed instantly (on each of the two platforms)?
  • Is there a risk of any issues due to the decryption?
  • If "there is no noticeable slow down" once encrypted, would I be wise to just keep it on?


I might add that my upgrade to 12.3.1, I have been running Safari for a couple of hours without issue. (I almost hate to say that!)


Thank you again!!





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