verilator/test_regress/t/t_gantt_io.out

Verilator Gantt report

Argument settings:
  +verilator+prof+threads+start+2
  +verilator+prof+threads+window+2
  --threads 2

Thread gantt graph:
  Legend: One character width = 136 rdtsc ticks
  Legend: '&' = multiple mtasks in this period (character width)
     <-21875 rdtsc total-------------------------------------------------------------------------------------------------------------------------------------------->
  t:                    [19]                                                [19]                                       [19]                                         [19]
  t:                                         [10-] [10-]    [10----]    [10-]   [10---]                                                     [10-][10][10]   [10][10]

Analysis:
  Total threads             = 2
  Total mtasks              = 7
  Total cpus used           = 2
  Total yields              = 0
  Total eval time           = 21875 rdtsc ticks
  Longest mtask time        = 1190 rdtsc ticks
  All-thread mtask time     = 5495 rdtsc ticks
  Longest-thread efficiency = 5.4%
  All-thread efficiency     = 12.6%
  All-thread speedup        = 0.3

Prediction (what Verilator used for scheduling):
  All-thread efficiency     = 63.2%
  All-thread speedup        = 1.3

Statistics:
  min log(p2e) = -3.681  from mtask 5 (predict 30, elapsed 1190)
  max log(p2e) = -2.409  from mtask 8 (predict 107, elapsed 1190)
  mean = -2.992
  stddev = 0.459
  e ^ stddev = 1.583

CPUs:
  cpu 10: cpu_time=4725 socket=0 core=10  Test Ryzen 9 3950X 16-Core Processor
  cpu 19: cpu_time=770 socket=0 core=3  Test Ryzen 9 3950X 16-Core Processor

Writing profile_threads.vcd