16,089 machine instructions a code point, 98,601 samples

by mechanism:
     6,038   37.5%  dispatch
     3,697   23.0%  compute
     2,729   17.0%  list read
     1,521    9.5%  moves
       713    4.4%  unknown
       451    2.8%  list build
       360    2.2%  call
       247    1.5%  memory
       190    1.2%  event
       144    0.9%  loop

in step(), by the case its line is in (code the compiler shares between cases goes to one of them):
     4,478  (fetch, decode)
     1,002  LOCAL_LOAD
       723  ARITH
       514  FLOORDIV
       285  CONST
       277  INDEX_AT
       234  LOCAL_STORE
       189  JZ
       163  ITEM_GET
       160  NE
       145  NOT
       141  LIST_FIND
       122  SUB
       115  JMP
        78  MOD
        72  LOOP
        70  LIST_APPEND
        52  BREAK
        35  TEXT_INSERT
        26  BYTES_OF
        21  CALL
        17  EACH
        17  LIST_COUNT
         8  I64_FROM
         6  ROW
         0  BYTE_AT

outside step(), by function as linked:
     2,064  pure_list_get
     1,560  run_calls
       891  floor_divide
       716  fmodf64
       201  enter_call
       134  ??
       122  arrays_free
       101  free
        99  pure_list_insert
        89  place
        71  message
        64  decode_cell
        55  pure_list_count
        55  pure_list_read
        54  clear_rows
        51  malloc
        47  __default_morecore
        46  prepare_extras
        44  leave_call
        42  restore_lists
        40  __xpg_strerror_r
        36  open_burst
        34  call_keeps
        30  pure_list_clear
        29  chunk_bytes
        27  pure_list_settle
        26  give_back
        25  collect
        24  timer_settime
        23  close_burst

no mechanism:
        95  ?? (where:0) < ??
        43  prepare_extras (module-list.c:625) < prepare_extras
        39  decode_cell (module-list.c:2132) < decode_cell
        39  ?? (??:0) < ??
        32  states_count (module.c:4749) < call_keeps
        24  decode_item (module-list.c:2344) < pure_list_read
        16  move_items (module-list.c:337) < place
        13  place (module-list.c:689) < place
        12  place (module-list.c:729) < place
        12  sum_path (module-list.c:591) < sum_path
        11  pure_list_read (module-list.c:2358) < pure_list_read
        10  leaf_bytes (store-tree.c:453) < leaf_bytes
         9  take (store-tree.c:602) < chunk_bytes
         9  own (module-list.c:552) < own
         9  sum (module-list.c:521) < sum
         8  own (module-list.c:563) < own
         8  pure_draft_size (store-tree.c:1530) < pure_draft_size
         8  decode_cell (module-list.c:2130) < decode_cell
         8  pure_list_read (module-list.c:2352) < pure_list_read
         7  pure_app_checkpoint (module-save.c:725) < pure_app_checkpoint