[Bug libstdc++/53263] priority_queue is very slow if -D_GLIBCXX_DEBUG is used

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53263

--- Comment #19 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I'm not going to work on this anyway, but really I'm not at all sure that
debug-mode is by design made for "bigger configurations", thus makes sense to
give high priority to this kind of issue. Unless of course users actively
contribute improvements.