> Now strlen() increments a variable for each character it faces, > hence it will consume more cycles.
It doesn't matter if there is a dependency in a loop: Before: 520: 48 83 c0 01 add $0x1,%rax 524: 80 38 00 cmpb $0x0,(%rax) 527: 75 f7 jne 520 After: 500: 48 83 c0 01 add $0x1,%rax 504: 80 3c 07 00 cmpb $0x0,(%rdi,%rax,1) 508: 75 f6 jne 500 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
