Xcode 27 beta 2 almost impossible to use with 16 GB memory Macs.

Developer Tools & Services Xcode
lionelng OP
Created 1d
Replies 3
Boosts 1
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Hi,

I have been testing Xcode 27 beta 2 on macOS 27 beta 2 on a MacBook Air M2 (base model) with 16 GB of memory. When loading previews for the first time, it could take a while, but it looks significantly longer compared to Xcode 26.x on macOS 26.x.

Then when trying to launch a simple app with a few screens, the Device Hub takes forever, and then on Activity Monitor, the swap used starts to climb up, almost as high as 12 GB or more. Running an app on Device Hub is almost impossible.

Is this a limit of what a MacBook Air can do? This is not my primary machine by the way.

Replies  3
Boosts  1
Views  77
Participants  3
Tyranttd OP
22h

I’ve been developing on an M4 Mac mini with 16 GB of RAM without issues for a while now. Something in beta 2 definitely seems off, either with Xcode or the simulators. I’m now consistently running out of RAM, with no obvious indicators pointing to why.
lionelng OP
16h

So even a M4 Mac mini with 16 GB of RAM so has issues with the Preview or Device Hub? Does it get to a state where you almost cannot use Preview/Device Hub?
SN81 OP
7h

I have 32 gigs and struggle on beta 2.

Xcode 27 beta 2 almost impossible to use with 16 GB memory Macs.
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