I propose to compile sha256.cpp with -O3 -march=amdfamk10 (will work on 32bit and 64bit) as only CPUs supporting this instruction set (AMD Phenom, Intel i5 and newer) benefit from -4way and it’ll improve performance by ~9%.
Re: tcatm's 4-way SSE2 for Linux 32/64-bit is in 0.3.10
Participants: tcatm