Perf alat na Ryzen-u

[Branimir_Maksimovic]

Elem skoro sam uzeo Ryzen-a i imam problem sa perf alatom.
naime:

~/.../simd/planets >>> perf stat -d ./target/release/planets  [6/1845]
112366469.68132663 0.072899495   
112366460.23848736 0.229327556   
   
 Performance counter stats for './target/release/planets':   
   
  932.85 msec task-clock:u  #  1.000 CPUs utilized   
  0  context-switches:u  #  0.000 K/sec
  0  cpu-migrations:u  #  0.000 K/sec
  58,736  page-faults:u  # 63021.459 M/sec
  2,359,158,230  cycles:u  # 2531285.655 GHz  (50.03%)
  172,093,151  stalled-cycles-frontend:u #  7.29% frontend cycles idle  (50.16%)
  320,107,898  stalled-cycles-backend:u  #  13.57% backend cycles idle  (50.16%)
  4,363,022,210  instructions:u  #  1.85  insn per cycle
  #  0.07  stalled cycles per insn  (50.16%)
  614,853,409  branches:u  # 659713958.155 M/sec  (50.16%)
  16,103,220  branch-misses:u  #  2.62% of all branches  (49.97%)
  2,299,157,179  L1-dcache-loads:u  # 2466906844.421 M/sec  (49.84%)
  291,790  L1-dcache-load-misses:u  #  0.01% of all L1-dcache hits  (49.84%)
  0  LLC-loads:u  #  0.000 K/sec  (49.84%)
  0  LLC-load-misses:u  #  0.00% of all LL-cache hits  (49.84%)

  0.933219096 seconds time elapsed

LLC je 0, i neke vrednosti nemaju smisla, jer koristi neko ovo na Ryzen-u i zna
li ocemu se radi i kako srediti ovo da prikazuje smislene vrednosti?