I've been wondering what is the memory limit for network extensions. Specifically, I'm using the NEPacketTunnelProvider extension point.
The various posts on this forum mention 5 MB and 6 MB for 32-bit and 64-bit respectively. However I find that (at least on iOS 10) the upper limit seems to be 15 MB. Is this the new memory limit for extensions?
Hi Eskimo,
Does this memory limit also apply on mac OS?
Does this memory limit also apply on mac OS?
for tunnel providers it seems to be 50 MB now.
Indeed. That’s a big bump!
Anyway, here’s what I see on iOS 15.0:
| packet tunnel | 50 |
| app proxy | 15 |
| filter control | 12 |
| filter data | 6 |
| DNS proxy | 15 |
| app push | 24 |
And, just so we’re clear:
IMPORTANT These limits have changed in the past and may well change in the future. I’m posting them to assist in your debugging. You should not hard code knowledge about these limits into your code. The only way to ensure that your provider can run within the system’s memory limits is to thoroughly test it on a wide range of device and OS combinations.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
Wow! Thanks!!
@eskimo Hi, Is the 50m change from ios15? Is ios14 still 15m? About the packet tunnel.
Is ios14 still 15m?
A quick check on iOS 14 (specifically iOS 14.8) indicates that has the same 15 MiB limit for packet tunnel providers as earlier systems.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
Thanks.
