------- Comment #13 from rguenth at gcc dot gnu dot org 2009-03-02 17:00 ------- And for trunk we have
combiner : 24.76 (15%) usr 0.80 (23%) sys 25.76 (16%) wall 448053 kB (82%) ggc integrated RA : 68.41 (43%) usr 1.06 (31%) sys 70.23 (42%) wall 3197 kB ( 1%) ggc as the worst offenders at -O1. I notice that with --enable-checking GC params the top memory usage is way lower than without, so something odd happens here as well (maybe a ggc_free wrapped inside ENABLE_CHECKING?). Most memory is used by combine and IRA. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39326