Re:A few useful Xcode debugging tricks
by victorthehuman on Tuesday August 17, 2021 @07:15AM
(#28208608)
The problem with those types of breakpoints is that they slow down the app considerably.
Put one of those in a tight loop and the timing related bug you're after could be gone.
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Only if they are implemented inefficiently or your application is constrained in a way that precludes efficient implementation.
As long as you can inject code and steal some memory you can just directly patch in the code snippet and patch in a branch instead of a breakpoint instruction. This is functionally equivalent to a adding a print statement, just at runtime instead of compile time, so should not be significantly slower.