[ios] Building a driving route on iPhone 5s hangs/crashes Organic Maps

[biodranik]

iPhone 5s (16GB), iOS 12.5.7

Related to #8294

Download Germany, Austria, Switzerland maps.

Build a route from Würzburg, to:
Erlangen —> works
Konstanz -> fails
Langenburg —> works
Tuttlingen -> fails
Schaffhausen (CH) -> fails
Baar (CH) -> fails

This is likely caused by the routing algorithm consuming too much memory (e.g. >700 Mb). The best fix could be to decrease the memory consumption.

There are several interesting entitlements to increase the memory limit, but they may not work on older iOS versions:
(since iOS 15): https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_kernel_increased-memory-limit

(since iOS 14): https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_kernel_extended-virtual-addressing

https://forums.developer.apple.com/forums/thread/685084