That way lies madness
That way lies madness
Posted Sep 3, 2011 17:12 UTC (Sat) by dlang (guest, #313)In reply to: That way lies madness by raven667
Parent article: The x32 system call ABI
there were two big factors that cause distros to go the direction they did for AMD64
1. especially early on there were problems with the compatibility mode causing occasional 'strange' errors when running 32 bit userspace on a 64 bit kernel.
2. the added registers of 64 bit mode significantly improve the performance of 64 bit code vs 32 bit code, in almost every case even when you take into account the extra overhead of the larger pointers.