Performance cost of GLIBCXX_ASSERTIONS? (Was: How do I remove GLIBCXX_ASSERTIONS?)

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>>>>> "TH" == Tom Hughes <tom@xxxxxxxxxx> writes:

TH> Presumably in this case the performance penalty was considered small
TH> enough that it was worth building even production code with this
TH> mode enabled.

I'd like to know if any performance analysis was done about this,
because the upstream of a package I help maintain (prusa-slicer) has
also indicated to me that they aren't in favor of compiling with
GLIBCXX_ASSERTIONS in code which is computationally expensive and not
security sensitive.  (This after the assertion found an actual bug in
their code.)  The only answer I could give was that any code
which can open downloaded files is "security sensitive" in some fashion,
and presumably the gcc/glibc developers have evaluated the performance
impact.

Is there any reference I could use to answer such questions?

 - J<
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