mpc_170kbps (nano 2)
all 33.45 MHz
-dewindowing 12.61 MHz = 20.84
-dct32 7.51 MHz = 5.10
-memmove 5.88 MHz = 1.63 (f-bank = 27.57)
-requant 3.91 MHz = 1.97
-bitstream = 3.91

PG_enc_mp3 ~220kpbs (nano 2g)
all 52.27 MHz
-dewindowing 29.54 MHz = 22.73
-dct32 24.03 MHz = 5.51 (f-bank = 28.24)
-imdct/overlap 12.04 MHz = 11.99
-freq_inv 10.10 MHz = 1.94
-alias_reduce 7.64 MHz = 2.46
-reorder 6.74 MHz = 0.90
-bitstream = 6.74