https://bugs.exim.org/show_bug.cgi?id=1844
--- Comment #1 from Philip Hazel <ph10@???> ---
Needless to say, I know nothing about AIX or its compiler. When you used GCC,
did you turn on optimization? (e.g. -O2) When you say "regex just as string" do
you mean you are searching for a fixed string? There are much faster ways of
doing that than using a regex. What exactly is your regex? Have you built PCRE
with JIT support (if your hardware supports it)? Have you called pcre_study()
on your compiled regex?
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