http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #159 from Jan Hubicka <hubicka at ucw dot cz> 2012-12-12 20:35:37 UTC --- > hal/Hal.gcda: 96.72%: num counts=30069, min counter=16389 > hal/Hal.gcda: 97.50%: num counts=35296, min counter=10241 > hal/Hal.gcda: 98.28%: num counts=43669, min counter=6145 > hal/Hal.gcda: 99.06%: num counts=59589, min counter=3072 > hal/Hal.gcda: 99.90%: num counts=115840, min counter=320 > > So it looks like you would want a cutoff of 97.5% to get close to what > was there before. Setting the default cutoff to something like 95% would sound fine to me. I see i asked to reduce the parameter but suggested 990. Markus, can you try setting HOT_BB_COUNT_WS_PERMILLE to 950? Honza