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realtime preempted linux kernel's HRT & TSC test result data

By: a guest on Jan 1st, 2012  |  syntax: None  |  size: 3.11 KB  |  hits: 43  |  expires: Never
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  1. ./timertest
  2. starting UHRT calibration...
  3. kernel reports High Resolution Timer resolution: 1 ns
  4. clock_gettime: actual resolution (nothing took): 1.118000000e-06 seconds
  5. gettimez: nothing took: 1.396983862e-06 seconds
  6. macro gettimez: nothing took: 1.118052751e-06 seconds
  7. timer value is: 525789.000380273 seconds
  8. timer value is: 525789.000391168 seconds
  9. usleep(+0.050000000 s) took: 0.050064185 seconds
  10. relative nanosleep(+0.050000000 s) took: 0.050059715 seconds
  11. absolute nanosleep(+0.050000000 s) took: 0.050058877 seconds
  12. polling 5us took: 5.867000000e-06 seconds
  13. polling 5ms took: 8.044038000e-03 seconds
  14. smartdelay 0 took: -1.000000000e-09 seconds
  15. smartdelay 3e-6 took: 3.072000000e-06 seconds
  16. smartdelay 1e-5 took: 8.940000000e-06 seconds
  17. smartdelay 5e-3 took: 4.999797000e-03 seconds
  18. smartdelay 0.1s took: 0.099999860 seconds
  19. smartdelay 1s took: 0.999999162 seconds
  20. Calibrating Ultra High Resolution Timing mode variables
  21. Calibrating UHRT mode variables (1.118e-05 s)...reached 75757 ppm accuracy.
  22. granularities: rdtsc->"44", gettime->"1859", smartdelay->"105"
  23. CPU clock speed is 2194901610.018 Hz +- 1.66279e+08 Hz
  24. UHRT resolution is 4.55601287746e-10 s
  25. Calibrating UHRT mode variables (0.0001118 s)...reached 7402.93 ppm accuracy.
  26. granularities: rdtsc->"31", gettime->"1812", smartdelay->"27"
  27. CPU clock speed is 2189338103.757 Hz +- 1.62075e+07 Hz
  28. UHRT resolution is 4.56759053471e-10 s
  29. Calibrating UHRT mode variables (0.001118 s)...reached 731.156 ppm accuracy.
  30. granularities: rdtsc->"47", gettime->"1796", smartdelay->"11"
  31. CPU clock speed is 2197122540.250 Hz +- 1.60644e+06 Hz
  32. UHRT resolution is 4.55140749631e-10 s
  33. Calibrating UHRT mode variables (0.1 s)...reached 9.73285 ppm accuracy.
  34. granularities: rdtsc->"46", gettime->"2141", smartdelay->"44"
  35. CPU clock speed is 2199767290.000 Hz +- 21410 Hz
  36. UHRT resolution is 4.5459354021e-10 s
  37. Calibrating UHRT mode variables (1 s)...reached 0.846911 ppm accuracy.
  38. granularities: rdtsc->"31", gettime->"1863", smartdelay->"245"
  39. CPU clock speed is 2199759903.000 Hz +- 1863 Hz
  40. UHRT resolution is 4.54595066778e-10 s
  41. tsc ticks: 6599313890
  42. hrt sessiontime: 3.000015086 s
  43. CPU clock speed is 2199760234.806 Hz +- 635.997 Hz
  44. UHRT: nothing took: 2.682110894e-08 seconds
  45. UHRT: a clock_gettime takes: 8.682765775e-07 seconds
  46. UHRT: 2 clock_gettime takes: 2.342073784e-06 seconds
  47. hrt_ticksync took: 1.92566470287e-06 s
  48. hrt_ticksync took: 1.94475769568e-06 s
  49. hrt_secsync took: 0.0999858133154 s
  50. hrt_secsync took: 0.899897835805 s
  51. hrt_secsync took: 0.49990098533 s
  52.  
  53.  
  54. # cat /proc/cpuinfo
  55. processor       : 0
  56. vendor_id       : AuthenticAMD
  57. cpu family      : 15
  58. model           : 47
  59. model name      : AMD Athlon(tm) 64 Processor 3500+
  60. stepping        : 2
  61. cpu MHz         : 2199.673
  62. cache size      : 512 KB
  63. fpu             : yes
  64. fpu_exception   : yes
  65. cpuid level     : 1
  66. wp              : yes
  67. flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow up rep_good nopl pni lahf_lm
  68. bogomips        : 4399.34
  69. TLB size        : 1024 4K pages
  70. clflush size    : 64
  71. cache_alignment : 64
  72. address sizes   : 40 bits physical, 48 bits virtual
  73. power management: ts fid vid ttp tm stc