On 07.16, Gwenole Beauchesne wrote: > Hi, > > > After some binary search and a 'couple' kernel builds, I narrowed the > > problem to mm/memory.c. With that file built at -O1: > > > > CFLAGS_memory.o = -O1 > > Very good! There are also other new options at -O2 related to profiling > (in 3.3-hammer) but I don't exactly remember their names. If you could > also try with them disabled. >
I'm not really sure, but I have the impression that 3.3.1 activates a lot more options in -O2 than previous compilers. I was comparing code performance with icc some time ago, and I remember I had to add things like -fgcse or -frerun-loop-opt manually. -- J.A. Magallon <[EMAIL PROTECTED]> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.2 (Cooker) for i586 Linux 2.4.22-pre5-jam1m (gcc 3.3.1 (Mandrake Linux 9.2 3.3.1-0.2mdk))
