LispWorks IDE User Guide > 24 The Profiler > 24.7 Profiling pitfalls

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24.7.5 Effect of compiler optimizations

With certain compiler settings code can be optimized such that the Profiler data does not appear to match your source code. For example when a tail call is optimized, the tail-called function appears in the call tree as a child of the parent of the caller, rather than as a child of its caller (just as in the debugger stack). Similarly code using funcall or apply may yield confusing results. To prevent tail-call optimization, use compiler setting debug 3 .


LispWorks IDE User Guide (Unix version) - 22 Dec 2009

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