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Is it just on my machine or does someone else has the same experience with performance getting worse and worse with each update?
 
Is it just on my machine or does someone else has the same experience with performance getting worse and worse with each update?

I almost did a post yesterday but I used my 2014 MacBook Pro for shopping/photos and stuff for most of the morning yesterday on 15.7.1 even Apple Watch worked for buying things on the web and paying by Apple Pay was going to post how impressed I am it still chugs along happily on 15.7.1 without issue.
 
Is it just on my machine or does someone else has the same experience with performance getting worse and worse with each update?
rMBP10,1 running 15.7.1 + OCLP 2.4.1 performing fine here. I fired up a 3D app (sketchup 2017) to kick the GPU into life, AOK. Seems (to me) to run as fast as on the other (supported) Mac here, a macMini8,1 2018
 
Heads up, 15.7.2 is out, downloading it to a supported Mac mini for a test run.
Is the 15.6 KDK still being accepted, or is it to the point it's better to wait for an updated KDK? I know you're talking about beta releases, but still, there isn't even a beta KDK to match the update.
 
Is the 15.6 KDK still being accepted, or is it to the point it's better to wait for an updated KDK? I know you're talking about beta releases, but still, there isn't even a beta KDK to match the update.
I dunno yet, the OTA process stalled during the "preparing" step. Anyway, I'm installing it first on a supported Mac, so OCLP is not in play yet.
 
I dunno yet, the OTA process stalled during the "preparing" step. Anyway, I'm installing it first on a supported Mac, so OCLP is not in play yet.
OK, was just curious. I don't do betas, but I also know the KDKs for anything other than Tahoe haven't been updated in a while, and that can be a concern if it goes too long.
 
OK, was just curious. I don't do betas, but I also know the KDKs for anything other than Tahoe haven't been updated in a while, and that can be a concern if it goes too long.

OCLP did not ask to update the KDK for SEQ it did update for T26 b2.
 
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OCLP did not ask to update the KDK for SEQ it did update for T26 b2.
OK, As I've mentioned a few times, I use the USB method for updating, because the OTA method is unusable for me when having to manually apply patches after an update, because things are so slow. The USB method solves this as it applies patches as part of the process. I mentioned this to say, that I don't know what OCLP is doing during that time since it's the black screen with the Apple logo, and the progress bar. I know it's worked though because everything is working on reboot, and the patch date is updated, saying everything is applied.
 
Thanks guys, I'll try it with the unsupported rMBP10,1 2012

15.7.2 runs fine on a supported mini 8,1 BTW

I'm wondering how to designate this release in my signature. RC 1? Beta 1? GA? Apple's versioning has been a bit sloppy of late, this one being undocumented so far.

Later: updated rMBP10,1 to 15.7.2 + OCLP 2.4.1 no problem. 15.7 GB full update.
 
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FWIW, Firefox is still well-supported on Catalina.

Chrome dropped support for Catalina quite a while ago and currently requires Monterey or newer.
OK, wasn't aware of Chrome's current support. This iMac 17,1 runs Monterey natively as the last supported OS, and then I have Sequoia on a second APFS Volume for things that require newer. I'm surprised they dropped Big Sur.
 
Hey all, I've run into some slight issues toggling between my installed versions of macOS, and was hoping someone could give me some pointers on how to optimize things. Whenever I've been running in Monterey for a while, and reboot back into Sequoia things are extremely slow, for about 5 to 10 minutes after the initial reboot. Going the other way, Monterey is only sluggish for about maybe 2 minutes or so. Both are on the internal Fusion drive, and share the entire drive via APFS Volumes. Is there a way to optimize Sequoia's login process ? Loading the same stuff always seem slower on Sequoia than Monterey. Is there any part of OCLP I can disable, that might run at startup, that may not run under Monterey, as it's not needed? After things have settled down things are fine, and if I reboot Sequoia, without switching installs, things are fine as well. So I'm mainly asking if I can optimize load times between switching installs.
 
Hey all, I've run into some slight issues toggling between my installed versions of macOS, and was hoping someone could give me some pointers on how to optimize things. Whenever I've been running in Monterey for a while, and reboot back into Sequoia things are extremely slow, for about 5 to 10 minutes after the initial reboot. Going the other way, Monterey is only sluggish for about maybe 2 minutes or so. Both are on the internal Fusion drive, and share the entire drive via APFS Volumes. Is there a way to optimize Sequoia's login process ? Loading the same stuff always seem slower on Sequoia than Monterey. Is there any part of OCLP I can disable, that might run at startup, that may not run under Monterey, as it's not needed? After things have settled down things are fine, and if I reboot Sequoia, without switching installs, things are fine as well. So I'm mainly asking if I can optimize load times between switching installs.
Sounds like your Fusion Drive is evicting and loading cached files on each subsequent boot of macOS version. Your Fusion Drive SSD component is most likely 32GB. It kind of makes sense when each boot of macOS version manages the Fusion Drive. Fusion Drive is a software layer which makes the two different physical disks appear as a single disk. Apply some skepticism here, I could be barking up the wrong tree.
 
Sounds like your Fusion Drive is evicting and loading cached files on each subsequent boot of macOS version. Your Fusion Drive SSD component is most likely 32GB. It kind of makes sense when each boot of macOS version manages the Fusion Drive. Fusion Drive is a software layer which makes the two different physical disks appear as a single disk. Apply some skepticism here, I could be barking up the wrong tree.
Mine is 128 GB, I have a 2 TB config. The 1 TB had the 32GB, the 2, and 3 TB have 128. You are probably correct though, and that was my thoughts as well, when switching between installs, the inactive parts were being moved to the standard HDD to make room for the most used stuff on the SSD. That part I understand, I was just curious about de-bloating Sequoia, so it's lighter like Monterey, or if OCLP did stuff on boot that I could disable since the system is patched, I don't need it to do anything right now, other than the boot loader.
 
Yes, it sounds like the Fusion Drive cache is swapping data.

It's basically a black box - the Fusion logic decides which files are accessed the most often and stores them in the SSD portion to accelerate performance. Having 2 operating systems is probably making it evict files from the previous operating system whenever you switch because the Fusion drive was never designed to run multiple versions of macOS on the same drive.

In the long run, it might be cleaner to run the other operating system (either the older or newer) on an external SSD out of the USB 3.0 or Thunderbolt 2 port and save the Fusion Drive for a single operating system or even just as a data drive (without OS).

There aren't any more native Thunderbolt 2 SSDs on sale, but you should be able to find Thunderbolt 3 or 4 SSD and they can run an adapter cable to your Thunderbolt 2 port, for example.
 
Yes, it sounds like the Fusion Drive cache is swapping data.

It's basically a black box - the Fusion logic decides which files are accessed the most often and stores them in the SSD portion to accelerate performance. Having 2 operating systems is probably making it evict files from the previous operating system whenever you switch because the Fusion drive was never designed to run multiple versions of macOS on the same drive.

In the long run, it might be cleaner to run the other operating system (either the older or newer) on an external SSD out of the USB 3.0 or Thunderbolt 2 port and save the Fusion Drive for a single operating system or even just as a data drive (without OS).

There aren't any more native Thunderbolt 2 SSDs on sale, but you should be able to find Thunderbolt 3 or 4 SSD and they can run an adapter cable to your Thunderbolt 2 port, for example.
When do I throw in the towel, and stop using Monterey period. It still works, and I can do my daily tasks, but more and more apps are dropping it to support future updates, and the only thing that doesn't work is Apple based DRM under Sequoia, for video in Safari, or prime app, etc, or downloading HD copies of iTunes stuff. I can stream iTunes content fine, and download an SD version to watch locally. Since I have an Apple TV, and a Roku, and a couple of Google based streamers, I really don't need the iMac for commercial content, and I have the iPhone too.

By the way the last time I tried Netflix in Safari under OCLP, it worked. It was just prime and Disney plus, that had issues, and they work in Firefox, or Chrome. So, at the end of the day more works for me on this iMac, than doesn't. The only other thing that doesn't work is Airplay mirroring to the Apple TV 4k, but it works with the Roku, so there are always solutions that make things work. I don't use Airplay, I only mentioned it because I tested it for someone here.
 
Just out of curiosity, does Advanced Data Protection work on patched macs? I have all compatible devices, so it should turn on in all respects, but I haven't tried it, in case there were any known issues.
 
I was able to turn on Advanced Data Protection, after setting up a recovery key. Everything seems to be working as it should. The changes are also reflected on the iPhone, does this carry over to Apple TV as well?
Screenshot 2025-10-11 at 10.33.51 AM.png
 
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Here is an idea for optimising MacOS a bit. Posting this because it could be of use to some of you as well:

I found the system performance to be quite sluggish from MacOS 15.6.x onwards and checked background processes.
Most of the time I find mds related processes indexing obsessively while spotlight is still underperforming and wont find anything at all many times. This is not beta release related in my opinion.

So I had ChatGPT writing a bash script (copied and run directly in terminal) that moves most of those indexing processes into the night time. CGPDF for instance. Kicked in all the time and often at very inconvenient times. Like that I was able to turn off SIRI in the background for good.

Since then 15.7.2b runs now way quieter. Maybe those who see performance issues want to consider such a move as well.
 
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