Could anyone explain the instructions/float metric ? Just tried running the same code on an M1 Air from blog, and i get quite different number of instructions/float, whereas the instructions/cycle are pretty close:

# parsing random numbers model: generate random numbers uniformly in the interval [0.000000,1.000000]

volume: 10000 floats

volume = 0.0762939 MB

strtod 376.04 instructions/float (+/- 0.0 %)

          75.53 cycles/float (+/- 0.0 %) 

          4.98 instructions/cycle 

          88.95 branches/float (+/- 0.0 %) 

          0.6005 mis. branches/float

fastfloat 162.01 instructions/float (+/- 0.0 %)

          22.01 cycles/float (+/- 0.0 %) 

          7.36 instructions/cycle 

          38.00 branches/float (+/- 0.0 %) 

          0.0001 mis. branches/float