non-linear complexity of :reload combined with :module in ghci

Hi all, I realized that ghci shows non-linear time complexity for a sequence of :module and :reload commands, say we do multiple times: :module *Foo :reload Steps to reproduce: time for i in {1..10}; do echo -e ':m Prelude\n:r'; done |ghci time for i in {1..99}; do echo -e ':m Prelude\n:r'; done |ghci On my system the first run uses 1 second of CPU time, the second 39 seconds. Is this considered a bug? Cheers, Simon