That's unexpected to me at least. We'll investigate. But probably not until after Easter. If you can send a program (smaller the better) that demonstrates this performance difference, we'd make much faster progress. Simon | -----Original Message----- | From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell-users- | bounces@haskell.org] On Behalf Of Ketil Malde | Sent: 07 April 2004 07:33 | To: glasgow-haskell-users@haskell.org | Subject: Haskell profiling and performance | | | Hi, | | Am I doing something wrong, or did profiling performance drop an order | of magnitude with GHC 6.2? When I compile my program with '-prof | -auto-all', it takes about ten times as long to run as it does | without. I use -O2 in both cases, and run without any run-time | profiling options switched on. | | (The reported time, OTOH, seems about right) | | I though that previously profiling-compiling programs would only have | marginal effects, and only running with heap profiling on would really | slow things down. | | If this is a recent 'feature' and not just my brain getting its wires | crossed again, is there any way to alleviate this (downgrade to x.y, | build CVS HEAD, whatever)? | | (GHC 6.2 on Linux, tested with RPM package and Gentoo binary | distribution) | | -kzm | -- | If I haven't seen further, it is by standing in the footprints of giants | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users@haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users