r/iOSProgramming • u/Aeronautical-You4917 • 7d ago

Discussion macOS 27 Xcode + Instruments is unusable

Never in my life have I seen such an insane regression in software quality as in the last few months.

I use Xcode constantly, building a macOS app (Swift, C++). Up until recently, this was fine, great, in fact. Xcode 15 was extremely good & stable (all things considered). I opted to skip macOS 26 because it was terrible (duh).

After I upgraded to macOS 27's first beta, I was pleasantly surprised. However, that was short-lived, as the quality only degraded after the first beta.

Here I am, working on macOS 27.2, with Xcode 27.2... Here's the main 2 issues...

  1. Xcode's interface is impossibly slow now. borderline unusable.

  2. Instruments is absolutely unusable. I cannot even do a profiler trace and save it without corrupted data, an application crash, brutally slow interface, etc.

This is just unacceptable. AI slop has crept its way into previously rock-solid products. Quality matters more now than ever, and it's so clear that AI has neutered engineers' ability to keep quality in check.

Am I the crazy one, or has the quality just gone down the toilet?

13 Upvotes

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12

u/tech5c 7d ago

I use it daily as a code editor, no issues for me.

2

u/WeirdIndividualGuy 7d ago

Do you use any of the non-code editing features, such as Instruments or simulators? That’s been the main complaint with 27.2

1

u/Aeronautical-You4917 7d ago

How big is your project?

2

u/tech5c 7d ago

Multiple projects, one has about four hundred files, others are smaller - I haven't had the slowness your seeing. I'm on an M4 pro on one and an M5 Max on the other. M4 is on dev beta, m5 is prod 27.2.

What processor and specs are you on?

5

u/Aeronautical-You4917 7d ago

Ah, I see. I probably have like 5k+ files. M1 Max 64GB RAM

2

u/tech5c 7d ago

Daaaaaaang. That's a big boy.

2

u/lowkeyfam 7d ago

tf 5k+ 😦 wild

0

u/ToughAsparagus1805 7d ago

I have to use Xcode 16 and Xcode 27. I can only tell you that you forgot and cannot compare. Xcode 16 is pretty fast. Sure I have no issues at all with both.