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  1.  
  2. % sudo strace -ttT -f -p 10140
  3. strace: Process 10140 attached with 3 threads
  4. strace: [ Process PID=10140 runs in x32 mode. ]
  5. [pid 13143] 13:35:30.820722 read(8, <unfinished ...>
  6. [pid 10250] 13:35:30.823406 read(6, <unfinished ...>
  7. [pid 10140] 13:35:31.312294 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, 0x7fffffffcc20) = 0 <0.003788>
  8. strace: [ Process PID=10140 runs in 64 bit mode. ]
  9. [pid 10140] 13:35:31.318575 write(7, "\0", 1 <unfinished ...>
  10. [pid 10250] 13:35:31.323180 <... read resumed> "\0", 1) = 1 <0.499027>
  11. [pid 10250] 13:35:31.329065 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.001107>
  12. [pid 10250] 13:35:31.331693 read(6, <unfinished ...>
  13. [pid 10140] 13:35:31.332710 <... write resumed> ) = 1 <0.013977>
  14. [pid 10140] 13:35:33.188267 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3750, tv_nsec=112767576}) = 0 <0.001919>
  15. [pid 10140] 13:35:33.216968 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.001985>
  16. [pid 10140] 13:35:33.880663 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3750, tv_nsec=709946978}) = 0 <0.002838>
  17. [pid 10140] 13:35:33.886214 write(7, "\0", 1 <unfinished ...>
  18. [pid 10250] 13:35:33.888731 <... read resumed> "\0", 1) = 1 <2.556902>
  19. [pid 10140] 13:35:33.896634 <... write resumed> ) = 1 <0.010298>
  20. [pid 10140] 13:35:33.898213 futex(0x666de8, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
  21. [pid 10250] 13:35:33.921837 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
  22. [pid 10140] 13:35:33.925186 <... futex resumed> ) = 0 <0.026856>
  23. [pid 10140] 13:35:33.927785 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1) = 0 <0.001744>
  24. [pid 10250] 13:35:33.937726 <... futex resumed> ) = 1 <0.015789>
  25. [pid 10250] 13:35:33.942988 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.001089>
  26. [pid 10250] 13:35:33.944707 read(6, <unfinished ...>
  27. [pid 10140] 13:35:35.930090 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3752, tv_nsec=123380260}) = 0 <0.005528>
  28. [pid 10140] 13:35:35.977354 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.002024>
  29. [pid 10140] 13:35:36.644263 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3752, tv_nsec=725913247}) = 0 <0.001936>
  30. [pid 10140] 13:35:36.649385 write(7, "\0", 1 <unfinished ...>
  31. [pid 10250] 13:35:36.651716 <... read resumed> "\0", 1) = 1 <2.706890>
  32. [pid 10250] 13:35:36.655200 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.003290>
  33. [pid 10250] 13:35:36.659577 read(6, <unfinished ...>
  34. [pid 10140] 13:35:36.660170 <... write resumed> ) = 1 <0.010667>
  35. [pid 10140] 13:35:38.771468 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3754, tv_nsec=576919624}) = 0 <0.001902>
  36. [pid 10140] 13:35:38.800701 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.002017>
  37. [pid 10140] 13:35:39.455377 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3755, tv_nsec=180223034}) = 0 <0.001974>
  38. [pid 10140] 13:35:39.460071 write(7, "\0", 1 <unfinished ...>
  39. [pid 10250] 13:35:39.461727 <... read resumed> "\0", 1) = 1 <2.802029>
  40. [pid 10140] 13:35:39.472650 <... write resumed> ) = 1 <0.012421>
  41. [pid 10140] 13:35:39.475736 futex(0x7ffff7a7d240, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
  42. [pid 10250] 13:35:39.476840 futex(0x7ffff7a7d240, FUTEX_WAKE_PRIVATE, 1) = 1 <0.000875>
  43. [pid 10140] 13:35:39.478170 <... futex resumed> ) = 0 <0.002304>
  44. [pid 10140] 13:35:39.478280 futex(0x7ffff7a7d240, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000017>
  45. [pid 10140] 13:35:39.478521 futex(0x666de8, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
  46. [pid 10250] 13:35:39.494055 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
  47. [pid 10140] 13:35:39.496744 <... futex resumed> ) = 0 <0.018092>
  48. [pid 10140] 13:35:39.499305 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000558>
  49. [pid 10250] 13:35:39.509786 <... futex resumed> ) = 1 <0.015555>
  50. [pid 10250] 13:35:39.511288 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.000654>
  51. [pid 10250] 13:35:39.513681 read(6, <unfinished ...>
  52. [pid 10140] 13:35:41.455881 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3756, tv_nsec=874570117}) = 0 <0.000030>
  53. [pid 10140] 13:35:41.485881 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.003415>
  54. [pid 10140] 13:35:42.167682 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3757, tv_nsec=513402255}) = 0 <0.001916>
  55. [pid 10140] 13:35:42.172439 write(7, "\0", 1 <unfinished ...>
  56. [pid 10250] 13:35:42.175071 <... read resumed> "\0", 1) = 1 <2.661221>
  57. [pid 10250] 13:35:42.178622 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.004853>
  58. [pid 10250] 13:35:42.184506 read(6, <unfinished ...>
  59. [pid 10140] 13:35:42.185165 <... write resumed> ) = 1 <0.012585>
  60. [pid 10140] 13:35:44.374100 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3759, tv_nsec=438187860}) = 0 <0.001942>
  61. [pid 10140] 13:35:44.404482 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.002011>
  62. [pid 10140] 13:35:45.094628 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3759, tv_nsec=993312116}) = 0 <0.001931>
  63. [pid 10140] 13:35:45.099942 write(7, "\0", 1 <unfinished ...>
  64. [pid 10250] 13:35:45.101717 <... read resumed> "\0", 1) = 1 <2.917065>
  65. [pid 10140] 13:35:45.111662 <... write resumed> ) = 1 <0.011597>
  66. [pid 10140] 13:35:45.112883 futex(0x666de8, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
  67. [pid 10250] 13:35:45.132981 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
  68. [pid 10140] 13:35:45.136329 <... futex resumed> ) = 0 <0.023304>
  69. [pid 10140] 13:35:45.139056 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1) = 0 <0.001001>
  70. [pid 10250] 13:35:45.150627 <... futex resumed> ) = 1 <0.017563>
  71. [pid 10250] 13:35:45.152451 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.000501>
  72. [pid 10250] 13:35:45.160726 read(6, <unfinished ...>
  73. [pid 10140] 13:35:47.090027 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3761, tv_nsec=717433848}) = 0 <0.002881>
  74. [pid 10140] 13:35:47.123052 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.002039>
  75. [pid 10140] 13:35:47.823930 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3762, tv_nsec=341071731}) = 0 <0.001943>
  76. [pid 10140] 13:35:47.828723 write(7, "\0", 1 <unfinished ...>
  77. [pid 10250] 13:35:47.831330 <... read resumed> "\0", 1) = 1 <2.670459>
  78. [pid 10250] 13:35:47.836839 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.000718>
  79. [pid 10250] 13:35:47.838269 read(6, <unfinished ...>
  80. [pid 10140] 13:35:47.838879 <... write resumed> ) = 1 <0.010040>
  81. [pid 10140] 13:35:50.178323 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3764, tv_nsec=353555080}) = 0 <0.001956>
  82. [pid 10140] 13:35:50.207095 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.002028>
  83. [pid 10140] 13:35:50.839987 clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {tv_sec=3764, tv_nsec=922150260}) = 0 <0.001959>
  84. [pid 10140] 13:35:50.844727 write(7, "\0", 1 <unfinished ...>
  85. [pid 10250] 13:35:50.846726 <... read resumed> "\0", 1) = 1 <3.008346>
  86. [pid 10140] 13:35:50.855629 <... write resumed> ) = 1 <0.010785>
  87. [pid 10140] 13:35:50.856737 futex(0x666de8, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
  88. [pid 10250] 13:35:50.896036 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
  89. [pid 10140] 13:35:50.899996 <... futex resumed> ) = 0 <0.043155>
  90. [pid 10140] 13:35:50.902434 futex(0x666de8, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000903>
  91. [pid 10250] 13:35:50.915637 <... futex resumed> ) = 1 <0.019519>
  92. [pid 10250] 13:35:50.916900 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 <0.000478>
  93.