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  1. WITHOUT PATCH
  2.  
  3.  
  4. perf stat ./zstd -b silesia/*
  5. 3# 12 files : 211938580 -> 66670873 (3.179), 196.4 MB/s , 938.1 MB/s
  6.  
  7. Performance counter stats for './zstd -b silesia/dickens silesia/mozilla silesia/mr silesia/nci silesia/ooffice silesia/osdb silesia/reymont silesia/samba silesia/sao silesia/webster silesia/xml silesia/x-ray':
  8.  
  9. 8 075,57 msec task-clock # 1,000 CPUs utilized
  10. 10 context-switches # 0,001 K/sec
  11. 0 cpu-migrations # 0,000 K/sec
  12. 155 826 page-faults # 0,019 M/sec
  13. 27 480 485 995 cycles # 3,403 GHz
  14. 58 080 440 706 instructions # 2,11 insn per cycle
  15. 6 521 154 724 branches # 807,516 M/sec
  16. 151 553 447 branch-misses # 2,32% of all branches
  17.  
  18. 8,075930116 seconds time elapsed
  19.  
  20. 7,871783000 seconds user
  21. 0,203994000 seconds sys
  22.  
  23. perf stat ./zstd -b silesia/*
  24. 3# 12 files : 211938580 -> 66670873 (3.179), 194.0 MB/s , 929.1 MB/s
  25.  
  26. Performance counter stats for './zstd -b silesia/dickens silesia/mozilla silesia/mr silesia/nci silesia/ooffice silesia/osdb silesia/reymont silesia/samba silesia/sao silesia/webster silesia/xml silesia/x-ray':
  27.  
  28. 8 047,22 msec task-clock # 1,000 CPUs utilized
  29. 18 context-switches # 0,002 K/sec
  30. 0 cpu-migrations # 0,000 K/sec
  31. 155 825 page-faults # 0,019 M/sec
  32. 27 665 612 223 cycles # 3,438 GHz
  33. 58 091 565 944 instructions # 2,10 insn per cycle
  34. 6 523 276 050 branches # 810,625 M/sec
  35. 151 562 467 branch-misses # 2,32% of all branches
  36.  
  37. 8,047877012 seconds time elapsed
  38.  
  39. 7,815618000 seconds user
  40. 0,231988000 seconds sys
  41.  
  42.  
  43. AFTER PATCH
  44.  
  45.  
  46. perf stat ./zstd -b silesia/*
  47. 3# 12 files : 211938580 -> 66670873 (3.179), 196.3 MB/s , 980.2 MB/s
  48.  
  49. Performance counter stats for './zstd -b silesia/dickens silesia/mozilla silesia/mr silesia/nci silesia/ooffice silesia/osdb silesia/reymont silesia/samba silesia/sao silesia/webster silesia/xml silesia/x-ray':
  50.  
  51. 7 667,27 msec task-clock # 1,000 CPUs utilized
  52. 26 context-switches # 0,003 K/sec
  53. 0 cpu-migrations # 0,000 K/sec
  54. 155 826 page-faults # 0,020 M/sec
  55. 27 099 818 524 cycles # 3,534 GHz
  56. 56 887 105 199 instructions # 2,10 insn per cycle
  57. 6 546 121 505 branches # 853,775 M/sec
  58. 151 747 904 branch-misses # 2,32% of all branches
  59.  
  60. 7,668226615 seconds time elapsed
  61.  
  62. 7,427678000 seconds user
  63. 0,239989000 seconds sys
  64.  
  65. perf stat ./zstd -b silesia/*
  66. 3# 12 files : 211938580 -> 66670873 (3.179), 196.7 MB/s , 982.5 MB/s
  67.  
  68. Performance counter stats for './zstd -b silesia/dickens silesia/mozilla silesia/mr silesia/nci silesia/ooffice silesia/osdb silesia/reymont silesia/samba silesia/sao silesia/webster silesia/xml silesia/x-ray':
  69.  
  70. 7 718,32 msec task-clock # 1,000 CPUs utilized
  71. 17 context-switches # 0,002 K/sec
  72. 0 cpu-migrations # 0,000 K/sec
  73. 155 826 page-faults # 0,020 M/sec
  74. 27 311 037 836 cycles # 3,538 GHz
  75. 56 888 763 699 instructions # 2,08 insn per cycle
  76. 6 546 414 069 branches # 848,166 M/sec
  77. 151 767 511 branch-misses # 2,32% of all branches
  78.  
  79. 7,718980167 seconds time elapsed
  80.  
  81. 7,502608000 seconds user
  82. 0,216075000 seconds sys
  83.  
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