-
Notifications
You must be signed in to change notification settings - Fork 0
/
funcgraph_example.txt
2177 lines (2141 loc) · 152 KB
/
funcgraph_example.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
Demonstrations of funcgraph, the Linux ftrace version.
I'll start by showing do_nanosleep(), since it's usually a low frequency
function that can be easily triggered (run "vmstat 1"):
# ./funcgraph do_nanosleep
Tracing "do_nanosleep"... Ctrl-C to end.
0) | do_nanosleep() {
0) | hrtimer_start_range_ns() {
0) | __hrtimer_start_range_ns() {
0) | lock_hrtimer_base.isra.24() {
0) 0.198 us | _raw_spin_lock_irqsave();
0) 0.908 us | }
0) 0.061 us | idle_cpu();
0) 0.117 us | ktime_get();
0) 0.371 us | enqueue_hrtimer();
0) 0.075 us | _raw_spin_unlock_irqrestore();
0) 3.447 us | }
0) 3.998 us | }
0) | schedule() {
0) | __schedule() {
0) 0.050 us | rcu_note_context_switch();
0) 0.055 us | _raw_spin_lock_irq();
0) | deactivate_task() {
0) | dequeue_task() {
0) 0.142 us | update_rq_clock();
0) | dequeue_task_fair() {
0) | dequeue_entity() {
0) | update_curr() {
0) 0.086 us | cpuacct_charge();
0) 0.757 us | }
0) 0.052 us | clear_buddies();
0) 0.103 us | update_cfs_load();
0) | update_cfs_shares() {
0) | reweight_entity() {
0) 0.077 us | update_curr();
0) 0.438 us | }
0) 0.794 us | }
0) 3.067 us | }
0) 0.064 us | set_next_buddy();
0) 0.066 us | update_cfs_load();
0) 0.085 us | update_cfs_shares();
0) | hrtick_update() {
0) 0.063 us | hrtick_start_fair();
0) 0.367 us | }
0) 5.188 us | }
0) 5.923 us | }
0) 6.228 us | }
0) | put_prev_task_fair() {
0) 0.078 us | put_prev_entity();
0) | put_prev_entity() {
0) 0.070 us | update_curr();
0) 0.074 us | __enqueue_entity();
0) 0.737 us | }
0) 1.367 us | }
0) | pick_next_task_fair() {
0) | pick_next_entity() {
0) 0.052 us | wakeup_preempt_entity.isra.95();
0) 0.070 us | clear_buddies();
0) 0.676 us | }
0) | set_next_entity() {
0) 0.052 us | update_stats_wait_end();
0) 0.435 us | }
0) | pick_next_entity() {
0) 0.065 us | clear_buddies();
0) 0.376 us | }
0) | set_next_entity() {
0) 0.067 us | update_stats_wait_end();
0) 0.374 us | }
0) 0.051 us | hrtick_start_fair();
0) 3.879 us | }
0) 0.057 us | paravirt_start_context_switch();
0) | xen_load_sp0() {
0) 0.050 us | paravirt_get_lazy_mode();
0) 0.057 us | __xen_mc_entry();
0) 0.056 us | paravirt_get_lazy_mode();
0) 1.441 us | }
0) | xen_load_tls() {
0) 0.049 us | paravirt_get_lazy_mode();
0) 0.051 us | paravirt_get_lazy_mode();
0) | load_TLS_descriptor() {
0) | arbitrary_virt_to_machine() {
0) 0.081 us | __virt_addr_valid();
0) 0.052 us | __phys_addr();
0) 0.084 us | get_phys_to_machine();
0) 1.115 us | }
0) 0.053 us | __xen_mc_entry();
0) 1.744 us | }
0) | load_TLS_descriptor() {
0) | arbitrary_virt_to_machine() {
0) 0.053 us | __virt_addr_valid();
0) 0.056 us | __phys_addr();
0) 0.057 us | get_phys_to_machine();
0) 0.990 us | }
0) 0.053 us | __xen_mc_entry();
0) 1.583 us | } /* load_TLS_descriptor */
0) | load_TLS_descriptor() {
0) | arbitrary_virt_to_machine() {
0) 0.057 us | __virt_addr_valid();
0) 0.051 us | __phys_addr();
0) 0.053 us | get_phys_to_machine();
0) 0.978 us | }
0) 0.052 us | __xen_mc_entry();
0) 1.586 us | }
0) 0.052 us | paravirt_get_lazy_mode();
0) 6.630 us | }
0) | xen_end_context_switch() {
0) 0.666 us | xen_mc_flush();
0) 0.050 us | paravirt_end_context_switch();
0) 1.286 us | }
0) 0.172 us | xen_write_msr_safe();
------------------------------------------
0) platfor-3210 => vmstat-2854
------------------------------------------
0) | do_nanosleep() {
0) | hrtimer_start_range_ns() {
0) | __hrtimer_start_range_ns() {
0) | lock_hrtimer_base.isra.24() {
0) 0.217 us | _raw_spin_lock_irqsave();
0) 0.831 us | }
0) 0.066 us | idle_cpu();
0) 0.123 us | ktime_get();
0) 1.172 us | enqueue_hrtimer();
0) 0.089 us | _raw_spin_unlock_irqrestore();
0) 4.050 us | }
0) 4.523 us | }
[...]
The default output shows the function call graph, including all child kernel
functions, along with the function duration times. These times are printed on
either the return line for the function ("}"), or for leaf functions, on the
same line.
The format of this output is documented in the function graph section of the
kernel source file Documentation/trace/ftrace.txt.
This particular example shows the workings of do_nanosleep, in the first dozen
lines, and then schedule() is called to sleep this thread and run another. The
inner workings of schedule() is included in the output.
This output is great for determining the behavior of a certain kernel function,
and to identify functions that can be studied in more details using other, lower
overhead, tools (eg, funccount(8), functrace(8), kprobe(8)). The overheads
of funcgraph are moderate, since all kernel functions are traced in case
they are executed, then included in the output if they are.
Now, if you want to start understanding the general behavior of the kernel,
without a certain kernel function in mind, you may be better to begin with
CPU stack profiling using perf and generating a flame graph. Such an approach
has low overhead, as you are in control of the frequency of event collection
(eg, gathering CPU stacks at 99 Hertz). For instructions, see:
http://www.brendangregg.com/perf.html#FlameGraphs
On newer Linux kernels, you can use the -m option to limit the function
depth. Eg, 3 levels only:
# ./funcgraph -m 3 do_nanosleep
Tracing "do_nanosleep"... Ctrl-C to end.
1) | do_nanosleep() {
1) | hrtimer_start_range_ns() {
1) 1.115 us | __hrtimer_start_range_ns();
1) 1.919 us | }
1) | schedule() {
1) | __schedule() {
1) 1000131 us | }
1) 11.006 us | xen_evtchn_do_upcall();
1) 1000149 us | }
1) | hrtimer_cancel() {
1) 0.212 us | hrtimer_try_to_cancel();
1) 0.699 us | }
1) 1000154 us | }
Neat.
Now do_sys_open() to 3 levels:
0) | do_sys_open() {
0) | getname() {
0) 0.296 us | getname_flags();
0) 0.768 us | }
0) | get_unused_fd_flags() {
0) 0.397 us | __alloc_fd();
0) 0.827 us | }
0) | do_filp_open() {
0) 4.166 us | path_openat();
0) 4.617 us | }
0) | __fsnotify_parent() {
0) 0.083 us | dget_parent();
0) 0.063 us | dput();
0) 0.883 us | }
0) 0.058 us | fsnotify();
0) | fd_install() {
0) 0.133 us | __fd_install();
0) 0.525 us | }
0) | putname() {
0) 0.198 us | final_putname();
0) 0.512 us | }
0) 10.777 us | }
[...]
I can then pick the highest latency child function, then run funcgraph again
using it as the target.
Without timestamps (-D to elide duration):
# ./funcgraph -Dm 3 do_sys_open
Tracing "do_sys_open"... Ctrl-C to end.
1) do_sys_open() {
1) getname() {
1) getname_flags();
1) }
1) get_unused_fd_flags() {
1) __alloc_fd();
1) }
1) do_filp_open() {
1) path_openat();
1) }
1) __fsnotify_parent();
1) fsnotify();
1) fd_install() {
1) __fd_install();
1) }
1) putname() {
1) final_putname();
1) }
1) }
Beautiful.
I could elide the CPU column as well, but I want to leave it: if it changes
half-way through some output, you know the CPU buffer has switched, and the
output may be shuffled.
For this example, I trace vfs_read() calls by process ID 5363: which is a bash
shell. I also include headers (-H) and absolute timestamps (-t). While
tracing, in that bash shell, I typed the word "hello":
# ./funcgraph -Htp 5363 vfs_read
Tracing "vfs_read" for PID 5363... Ctrl-C to end.
# tracer: function_graph
#
# TIME CPU DURATION FUNCTION CALLS
# | | | | | | | |
7238523.638008 | 0) | finish_task_switch() {
7238523.638012 | 0) | xen_evtchn_do_upcall() {
7238523.638012 | 0) | irq_enter() {
7238523.638013 | 0) 0.153 us | rcu_irq_enter();
7238523.638014 | 0) 1.144 us | }
7238523.638014 | 0) 0.056 us | exit_idle();
7238523.638014 | 0) | __xen_evtchn_do_upcall() {
7238523.638015 | 0) | evtchn_2l_handle_events() {
7238523.638015 | 0) 0.057 us | irq_from_virq();
7238523.638015 | 0) | evtchn_from_irq() {
7238523.638015 | 0) | irq_get_irq_data() {
7238523.638016 | 0) 0.058 us | irq_to_desc();
7238523.638016 | 0) 0.565 us | }
7238523.638016 | 0) 0.966 us | }
7238523.638016 | 0) | get_evtchn_to_irq() {
7238523.638017 | 0) 0.050 us | evtchn_2l_max_channels();
7238523.638017 | 0) 0.386 us | }
7238523.638017 | 0) | generic_handle_irq() {
7238523.638017 | 0) 0.058 us | irq_to_desc();
7238523.638018 | 0) | handle_percpu_irq() {
7238523.638018 | 0) | ack_dynirq() {
7238523.638018 | 0) | evtchn_from_irq() {
7238523.638018 | 0) | irq_get_irq_data() {
7238523.638019 | 0) 0.049 us | irq_to_desc();
7238523.638019 | 0) 0.441 us | }
7238523.638019 | 0) 0.772 us | }
7238523.638019 | 0) 0.049 us | irq_move_irq();
7238523.638020 | 0) 0.060 us | evtchn_2l_clear_pending();
7238523.638020 | 0) 1.810 us | }
7238523.638020 | 0) | handle_irq_event_percpu() {
7238523.638020 | 0) | xen_irq_work_interrupt() {
7238523.638021 | 0) | irq_enter() {
7238523.638021 | 0) 0.056 us | rcu_irq_enter();
7238523.638021 | 0) 0.384 us | }
7238523.638021 | 0) | __wake_up() {
7238523.638022 | 0) 0.059 us | _raw_spin_lock_irqsave();
7238523.638022 | 0) | __wake_up_common() {
7238523.638022 | 0) | autoremove_wake_function() {
7238523.638023 | 0) | default_wake_function() {
7238523.638023 | 0) | try_to_wake_up() {
7238523.638023 | 0) 0.220 us | _raw_spin_lock_irqsave();
7238523.638024 | 0) 0.270 us | task_waking_fair();
7238523.638024 | 0) | select_task_rq_fair() {
7238523.638025 | 0) 0.055 us | source_load();
7238523.638025 | 0) 0.056 us | target_load();
7238523.638025 | 0) 0.060 us | idle_cpu();
7238523.638026 | 0) 0.054 us | cpus_share_cache();
7238523.638026 | 0) 0.083 us | idle_cpu();
7238523.638026 | 0) 2.060 us | }
7238523.638027 | 0) 0.051 us | _raw_spin_lock();
7238523.638027 | 0) | ttwu_do_activate.constprop.124() {
7238523.638027 | 0) | activate_task() {
7238523.638027 | 0) | enqueue_task() {
7238523.638028 | 0) 0.120 us | update_rq_clock();
7238523.638028 | 0) | enqueue_task_fair() {
7238523.638028 | 0) | enqueue_entity() {
7238523.638028 | 0) 0.147 us | update_curr();
7238523.638029 | 0) 0.055 us | __compute_runnable_contrib.part.51();
7238523.638029 | 0) 0.066 us | __update_entity_load_avg_contrib();
7238523.638029 | 0) 0.141 us | update_cfs_rq_blocked_load();
7238523.638030 | 0) 0.068 us | account_entity_enqueue();
7238523.638030 | 0) 0.351 us | update_cfs_shares();
7238523.638031 | 0) 0.053 us | place_entity();
7238523.638031 | 0) 0.082 us | __enqueue_entity();
7238523.638032 | 0) 0.050 us | update_cfs_rq_blocked_load();
7238523.638032 | 0) 3.922 us | }
7238523.638032 | 0) | enqueue_entity() {
7238523.638033 | 0) 0.058 us | update_curr();
7238523.638033 | 0) 0.056 us | __compute_runnable_contrib.part.51();
7238523.638033 | 0) 0.078 us | __update_entity_load_avg_contrib();
7238523.638034 | 0) 0.055 us | update_cfs_rq_blocked_load();
7238523.638034 | 0) 0.064 us | account_entity_enqueue();
7238523.638034 | 0) 0.059 us | update_cfs_shares();
7238523.638035 | 0) 0.050 us | place_entity();
7238523.638036 | 0) 0.057 us | __enqueue_entity();
7238523.638036 | 0) 3.829 us | }
7238523.638037 | 0) 0.057 us | hrtick_update();
7238523.638037 | 0) 8.876 us | }
7238523.638037 | 0) 9.698 us | }
7238523.638037 | 0) 10.113 us | }
7238523.638038 | 0) | ttwu_do_wakeup() {
7238523.638038 | 0) | check_preempt_curr() {
7238523.638038 | 0) | resched_task() {
7238523.638038 | 0) | xen_smp_send_reschedule() {
7238523.638038 | 0) | xen_send_IPI_one() {
7238523.638039 | 0) | notify_remote_via_irq() {
7238523.638039 | 0) | evtchn_from_irq() {
7238523.638039 | 0) | irq_get_irq_data() {
7238523.638039 | 0) 0.051 us | irq_to_desc();
7238523.638039 | 0) 0.518 us | }
7238523.638040 | 0) 0.955 us | }
7238523.638041 | 0) 2.001 us | }
7238523.638041 | 0) 2.391 us | }
7238523.638041 | 0) 2.745 us | }
7238523.638041 | 0) 3.183 us | }
7238523.638042 | 0) 3.663 us | }
7238523.638042 | 0) 4.621 us | }
7238523.638043 | 0) 15.443 us | }
7238523.638043 | 0) 0.067 us | _raw_spin_unlock();
7238523.638043 | 0) 0.167 us | ttwu_stat();
7238523.638044 | 0) 0.087 us | _raw_spin_unlock_irqrestore();
7238523.638044 | 0) 21.447 us | }
7238523.638045 | 0) 21.940 us | }
7238523.638045 | 0) 22.406 us | }
7238523.638045 | 0) 23.071 us | }
7238523.638045 | 0) 0.073 us | _raw_spin_unlock_irqrestore();
7238523.638046 | 0) 24.382 us | }
7238523.638046 | 0) | irq_exit() {
7238523.638047 | 0) 0.085 us | idle_cpu();
7238523.638047 | 0) 0.093 us | rcu_irq_exit();
7238523.638048 | 0) 1.242 us | }
7238523.638048 | 0) 27.410 us | }
7238523.638049 | 0) 0.139 us | add_interrupt_randomness();
7238523.638049 | 0) 0.089 us | note_interrupt();
7238523.638050 | 0) 29.582 us | }
7238523.638050 | 0) 32.112 us | }
7238523.638050 | 0) 32.951 us | }
7238523.638051 | 0) 35.765 us | }
7238523.638051 | 0) 36.170 us | }
7238523.638051 | 0) | irq_exit() {
7238523.638051 | 0) 0.082 us | idle_cpu();
7238523.638052 | 0) 0.071 us | rcu_irq_exit();
7238523.638053 | 0) 1.328 us | }
7238523.638053 | 0) 40.563 us | }
7238523.638054 | 0) | __mmdrop() {
7238523.638054 | 0) | pgd_free() {
7238523.638055 | 0) 0.151 us | _raw_spin_lock();
7238523.638055 | 0) 0.069 us | _raw_spin_unlock();
7238523.638056 | 0) | xen_pgd_free() {
7238523.638056 | 0) 0.067 us | xen_get_user_pgd();
7238523.638057 | 0) | free_pages() {
7238523.638057 | 0) | __free_pages() {
7238523.638057 | 0) | free_hot_cold_page() {
7238523.638058 | 0) 0.080 us | free_pages_prepare();
7238523.638058 | 0) 0.363 us | get_pfnblock_flags_mask();
7238523.638059 | 0) 1.626 us | }
7238523.638059 | 0) 2.317 us | }
7238523.638060 | 0) 2.847 us | }
7238523.638060 | 0) 3.908 us | }
7238523.638060 | 0) | free_pages() {
7238523.638060 | 0) | __free_pages() {
7238523.638061 | 0) | free_hot_cold_page() {
7238523.638061 | 0) 0.083 us | free_pages_prepare();
7238523.638061 | 0) 0.139 us | get_pfnblock_flags_mask();
7238523.638062 | 0) 1.062 us | }
7238523.638062 | 0) 1.534 us | }
7238523.638062 | 0) 2.038 us | }
7238523.638063 | 0) 8.268 us | }
7238523.638064 | 0) 0.160 us | destroy_context();
7238523.638065 | 0) 0.384 us | kmem_cache_free();
7238523.638066 | 0) 11.433 us | }
7238523.638066 | 0) 54.448 us | }
7238523.638066 | 0) 19354026 us | } /* __schedule */
7238523.638067 | 0) 19354026 us | } /* schedule */
7238523.638067 | 0) 19354027 us | } /* schedule_timeout */
7238523.638067 | 0) 0.121 us | down_read();
7238523.638068 | 0) | copy_from_read_buf() {
7238523.638069 | 0) | tty_audit_add_data() {
7238523.638070 | 0) 0.220 us | _raw_spin_lock_irqsave();
7238523.638071 | 0) 0.097 us | _raw_spin_unlock_irqrestore();
7238523.638071 | 0) 0.078 us | _raw_spin_lock_irqsave();
7238523.638072 | 0) 0.077 us | _raw_spin_unlock_irqrestore();
7238523.638072 | 0) 2.795 us | }
7238523.638073 | 0) 4.183 us | }
7238523.638073 | 0) 0.084 us | copy_from_read_buf();
7238523.638074 | 0) 0.078 us | n_tty_set_room();
7238523.638074 | 0) 0.082 us | n_tty_write_wakeup();
7238523.638075 | 0) | __wake_up() {
7238523.638075 | 0) 0.084 us | _raw_spin_lock_irqsave();
7238523.638076 | 0) | __wake_up_common() {
7238523.638076 | 0) 0.095 us | pollwake();
7238523.638077 | 0) 0.819 us | }
7238523.638077 | 0) 0.074 us | _raw_spin_unlock_irqrestore();
7238523.638078 | 0) 2.463 us | }
7238523.638078 | 0) 0.071 us | n_tty_set_room();
7238523.638078 | 0) 0.082 us | up_read();
7238523.638079 | 0) | remove_wait_queue() {
7238523.638079 | 0) 0.082 us | _raw_spin_lock_irqsave();
7238523.638080 | 0) 0.086 us | _raw_spin_unlock_irqrestore();
7238523.638080 | 0) 1.239 us | }
7238523.638081 | 0) 0.142 us | mutex_unlock();
7238523.638081 | 0) 19354047 us | } /* n_tty_read */
7238523.638082 | 0) | tty_ldisc_deref() {
7238523.638082 | 0) 0.064 us | ldsem_up_read();
7238523.638082 | 0) 0.554 us | }
7238523.638083 | 0) 0.074 us | get_seconds();
7238523.638083 | 0) 19354052 us | } /* tty_read */
7238523.638084 | 0) 0.352 us | __fsnotify_parent();
7238523.638085 | 0) 0.178 us | fsnotify();
7238523.638085 | 0) 19354058 us | } /* vfs_read */
7238523.638156 | 0) | vfs_read() {
7238523.638157 | 0) | rw_verify_area() {
7238523.638157 | 0) | security_file_permission() {
7238523.638158 | 0) | apparmor_file_permission() {
7238523.638158 | 0) 0.183 us | common_file_perm();
7238523.638159 | 0) 0.778 us | }
7238523.638159 | 0) 0.081 us | __fsnotify_parent();
7238523.638160 | 0) 0.104 us | fsnotify();
7238523.638160 | 0) 2.662 us | }
7238523.638161 | 0) 3.337 us | }
7238523.638161 | 0) | tty_read() {
7238523.638161 | 0) 0.067 us | tty_paranoia_check();
7238523.638162 | 0) | tty_ldisc_ref_wait() {
7238523.638162 | 0) 0.080 us | } /* ldsem_down_read */
7238523.638163 | 0) 0.637 us | }
7238523.638163 | 0) | n_tty_read() {
7238523.638164 | 0) 0.078 us | _raw_spin_lock_irq();
7238523.638164 | 0) 0.090 us | mutex_lock_interruptible();
7238523.638165 | 0) 0.078 us | down_read();
7238523.638165 | 0) | add_wait_queue() {
7238523.638166 | 0) 0.070 us | _raw_spin_lock_irqsave();
7238523.638166 | 0) 0.084 us | _raw_spin_unlock_irqrestore();
7238523.638167 | 0) 1.111 us | }
7238523.638167 | 0) 0.083 us | tty_hung_up_p();
7238523.638168 | 0) 0.080 us | n_tty_set_room();
7238523.638169 | 0) 0.068 us | up_read();
7238523.638169 | 0) | schedule_timeout() {
7238523.638170 | 0) | schedule() {
7238523.638170 | 0) | __schedule() {
7238523.638171 | 0) 0.078 us | rcu_note_context_switch();
7238523.638171 | 0) 0.081 us | _raw_spin_lock_irq();
7238523.638172 | 0) | deactivate_task() {
7238523.638172 | 0) | dequeue_task() {
7238523.638172 | 0) 0.181 us | update_rq_clock();
7238523.638173 | 0) | dequeue_task_fair() {
7238523.638174 | 0) | dequeue_entity() {
7238523.638174 | 0) | update_curr() {
7238523.638174 | 0) 0.257 us | cpuacct_charge();
7238523.638175 | 0) 0.982 us | }
7238523.638175 | 0) 0.079 us | update_cfs_rq_blocked_load();
7238523.638176 | 0) 0.080 us | clear_buddies();
7238523.638177 | 0) 0.096 us | account_entity_dequeue();
7238523.638177 | 0) | update_cfs_shares() {
7238523.638178 | 0) 0.113 us | update_curr();
7238523.638178 | 0) 0.087 us | account_entity_dequeue();
7238523.638179 | 0) 0.073 us | account_entity_enqueue();
7238523.638179 | 0) 1.948 us | }
7238523.638180 | 0) 5.913 us | }
7238523.638180 | 0) | dequeue_entity() {
7238523.638180 | 0) 0.086 us | update_curr();
7238523.638181 | 0) 0.079 us | update_cfs_rq_blocked_load();
7238523.638182 | 0) 0.076 us | clear_buddies();
7238523.638182 | 0) 0.076 us | account_entity_dequeue();
7238523.638183 | 0) 0.104 us | update_cfs_shares();
7238523.638183 | 0) 3.171 us | }
7238523.638184 | 0) 0.076 us | hrtick_update();
7238523.638184 | 0) 10.785 us | }
7238523.638184 | 0) 12.057 us | }
7238523.638185 | 0) 12.704 us | }
7238523.638185 | 0) | pick_next_task_fair() {
7238523.638185 | 0) 0.074 us | check_cfs_rq_runtime();
7238523.638186 | 0) | pick_next_entity() {
7238523.638186 | 0) 0.067 us | clear_buddies();
7238523.638187 | 0) 0.544 us | }
7238523.638187 | 0) | put_prev_entity() {
7238523.638187 | 0) 0.079 us | check_cfs_rq_runtime();
7238523.638188 | 0) 0.612 us | }
7238523.638188 | 0) | put_prev_entity() {
7238523.638188 | 0) 0.076 us | check_cfs_rq_runtime();
7238523.638189 | 0) 0.618 us | }
7238523.638189 | 0) | set_next_entity() {
7238523.638190 | 0) 0.078 us | update_stats_wait_end();
7238523.638190 | 0) 0.712 us | }
7238523.638190 | 0) 5.023 us | }
7238523.638191 | 0) 0.086 us | paravirt_start_context_switch();
7238523.638192 | 0) 0.070 us | xen_read_cr0();
7238523.638193 | 0) | xen_write_cr0() {
7238523.638193 | 0) 0.085 us | paravirt_get_lazy_mode();
7238523.638194 | 0) 0.085 us | __xen_mc_entry();
7238523.638194 | 0) 0.077 us | paravirt_get_lazy_mode();
7238523.638195 | 0) 1.822 us | }
7238523.638195 | 0) | xen_load_sp0() {
7238523.638195 | 0) 0.074 us | paravirt_get_lazy_mode();
7238523.638196 | 0) 0.085 us | __xen_mc_entry();
7238523.638196 | 0) 0.078 us | paravirt_get_lazy_mode();
7238523.638197 | 0) 1.754 us | }
7238523.638197 | 0) | xen_load_tls() {
7238523.638198 | 0) 0.069 us | paravirt_get_lazy_mode();
7238523.638198 | 0) 0.082 us | paravirt_get_lazy_mode();
7238523.638199 | 0) 0.127 us | load_TLS_descriptor();
7238523.638199 | 0) 0.080 us | load_TLS_descriptor();
7238523.638200 | 0) 0.094 us | load_TLS_descriptor();
7238523.638201 | 0) 0.081 us | paravirt_get_lazy_mode();
7238523.638202 | 0) 4.155 us | }
7238523.638202 | 0) | xen_end_context_switch() {
7238523.638202 | 0) 0.699 us | xen_mc_flush();
7238523.638204 | 0) 0.089 us | paravirt_end_context_switch();
7238523.638204 | 0) 1.915 us | }
7238523.797630 | 0) | finish_task_switch() {
7238523.797634 | 0) | xen_evtchn_do_upcall() {
7238523.797634 | 0) | irq_enter() {
7238523.797634 | 0) 0.134 us | rcu_irq_enter();
7238523.797635 | 0) 0.688 us | }
7238523.797635 | 0) 0.055 us | exit_idle();
7238523.797635 | 0) | __xen_evtchn_do_upcall() {
7238523.797636 | 0) | evtchn_2l_handle_events() {
7238523.797636 | 0) 0.048 us | irq_from_virq();
7238523.797636 | 0) | evtchn_from_irq() {
7238523.797636 | 0) | irq_get_irq_data() {
7238523.797637 | 0) 0.061 us | irq_to_desc();
7238523.797637 | 0) 0.564 us | }
7238523.797637 | 0) 0.954 us | }
7238523.797638 | 0) | get_evtchn_to_irq() {
7238523.797638 | 0) 0.057 us | evtchn_2l_max_channels();
7238523.797638 | 0) 0.409 us | }
7238523.797638 | 0) | generic_handle_irq() {
7238523.797638 | 0) 0.052 us | irq_to_desc();
7238523.797639 | 0) | handle_percpu_irq() {
7238523.797639 | 0) | ack_dynirq() {
7238523.797639 | 0) | evtchn_from_irq() {
7238523.797639 | 0) | irq_get_irq_data() {
7238523.797640 | 0) 0.057 us | irq_to_desc();
7238523.797640 | 0) 0.440 us | }
7238523.797640 | 0) 0.746 us | }
7238523.797640 | 0) 0.056 us | irq_move_irq();
7238523.797641 | 0) 0.058 us | evtchn_2l_clear_pending();
7238523.797641 | 0) 1.729 us | }
7238523.797641 | 0) | handle_irq_event_percpu() {
7238523.797641 | 0) | xen_irq_work_interrupt() {
7238523.797642 | 0) | irq_enter() {
7238523.797642 | 0) 0.053 us | rcu_irq_enter();
7238523.797642 | 0) 0.396 us | }
7238523.797642 | 0) | __wake_up() {
7238523.797643 | 0) 0.053 us | _raw_spin_lock_irqsave();
7238523.797643 | 0) | __wake_up_common() {
7238523.797643 | 0) | autoremove_wake_function() {
7238523.797644 | 0) | default_wake_function() {
7238523.797644 | 0) | try_to_wake_up() {
7238523.797644 | 0) 0.228 us | _raw_spin_lock_irqsave();
7238523.797645 | 0) 0.194 us | task_waking_fair();
7238523.797645 | 0) | select_task_rq_fair() {
7238523.797645 | 0) 0.051 us | source_load();
7238523.797646 | 0) 0.050 us | target_load();
7238523.797646 | 0) 0.067 us | idle_cpu();
7238523.797647 | 0) 0.050 us | cpus_share_cache();
7238523.797647 | 0) 0.068 us | idle_cpu();
7238523.797647 | 0) 1.983 us | }
7238523.797648 | 0) 0.051 us | _raw_spin_lock();
7238523.797648 | 0) | ttwu_do_activate.constprop.124() {
7238523.797648 | 0) | activate_task() {
7238523.797648 | 0) | enqueue_task() {
7238523.797648 | 0) 0.135 us | update_rq_clock();
7238523.797649 | 0) | enqueue_task_fair() {
7238523.797649 | 0) | enqueue_entity() {
7238523.797649 | 0) 0.059 us | update_curr();
7238523.797650 | 0) 0.073 us | __compute_runnable_contrib.part.51();
7238523.797650 | 0) 0.066 us | __update_entity_load_avg_contrib();
7238523.797650 | 0) 0.059 us | update_cfs_rq_blocked_load();
7238523.797651 | 0) 0.064 us | account_entity_enqueue();
7238523.797651 | 0) 0.137 us | update_cfs_shares();
7238523.797651 | 0) 0.054 us | place_entity();
7238523.797652 | 0) 0.074 us | __enqueue_entity();
7238523.797652 | 0) 3.085 us | }
7238523.797652 | 0) | enqueue_entity() {
7238523.797653 | 0) 0.058 us | update_curr();
7238523.797654 | 0) 0.049 us | update_cfs_rq_blocked_load();
7238523.797654 | 0) 0.057 us | account_entity_enqueue();
7238523.797655 | 0) 0.066 us | update_cfs_shares();
7238523.797655 | 0) 0.049 us | place_entity();
7238523.797655 | 0) 0.051 us | __enqueue_entity();
7238523.797656 | 0) 3.432 us | }
7238523.797656 | 0) 0.049 us | hrtick_update();
7238523.797657 | 0) 7.552 us | }
7238523.797657 | 0) 8.414 us | }
7238523.797657 | 0) 8.753 us | }
7238523.797657 | 0) | ttwu_do_wakeup() {
7238523.797657 | 0) | check_preempt_curr() {
7238523.797657 | 0) | resched_task() {
7238523.797658 | 0) | xen_smp_send_reschedule() {
7238523.797658 | 0) | xen_send_IPI_one() {
7238523.797658 | 0) | notify_remote_via_irq() {
7238523.797658 | 0) | evtchn_from_irq() {
7238523.797658 | 0) | irq_get_irq_data() {
7238523.797659 | 0) 0.069 us | irq_to_desc();
7238523.797659 | 0) 0.504 us | }
7238523.797659 | 0) 0.869 us | }
7238523.797660 | 0) 1.940 us | } /* notify_remote_via_irq */
7238523.797660 | 0) 2.319 us | }
7238523.797660 | 0) 2.712 us | }
7238523.797661 | 0) 3.147 us | }
7238523.797661 | 0) 3.625 us | }
7238523.797662 | 0) 4.525 us | }
7238523.797662 | 0) 13.961 us | }
7238523.797662 | 0) 0.069 us | _raw_spin_unlock();
7238523.797663 | 0) 0.168 us | ttwu_stat();
7238523.797663 | 0) 0.076 us | _raw_spin_unlock_irqrestore();
7238523.797664 | 0) 19.821 us | }
7238523.797664 | 0) 20.301 us | }
7238523.797664 | 0) 20.796 us | }
7238523.797664 | 0) 21.367 us | }
7238523.797665 | 0) 0.071 us | _raw_spin_unlock_irqrestore();
7238523.797665 | 0) 22.621 us | }
7238523.797666 | 0) | irq_exit() {
7238523.797666 | 0) 0.085 us | idle_cpu();
7238523.797666 | 0) 0.106 us | rcu_irq_exit();
7238523.797667 | 0) 1.220 us | }
7238523.797667 | 0) 25.712 us | }
7238523.797668 | 0) 0.138 us | add_interrupt_randomness();
7238523.797668 | 0) 0.092 us | note_interrupt();
7238523.797669 | 0) 27.713 us | }
7238523.797669 | 0) 30.163 us | }
7238523.797669 | 0) 31.017 us | }
7238523.797670 | 0) 33.953 us | }
7238523.797670 | 0) 34.384 us | }
7238523.797670 | 0) | irq_exit() {
7238523.797671 | 0) 0.079 us | idle_cpu();
7238523.797671 | 0) 0.072 us | rcu_irq_exit();
7238523.797672 | 0) 1.023 us | }
7238523.797672 | 0) 37.789 us | }
7238523.797672 | 0) 39.298 us | }
7238523.797673 | 0) 159502.1 us | }
7238523.797673 | 0) 159502.8 us | }
7238523.797673 | 0) 159503.5 us | }
7238523.797674 | 0) 0.112 us | down_read();
7238523.797675 | 0) | copy_from_read_buf() {
7238523.797676 | 0) | tty_audit_add_data() {
7238523.797676 | 0) 0.226 us | _raw_spin_lock_irqsave();
7238523.797677 | 0) 0.075 us | _raw_spin_unlock_irqrestore();
7238523.797677 | 0) 0.101 us | _raw_spin_lock_irqsave();
7238523.797678 | 0) 0.068 us | _raw_spin_unlock_irqrestore();
7238523.797679 | 0) 2.656 us | }
7238523.797679 | 0) 3.762 us | }
7238523.797679 | 0) 0.145 us | copy_from_read_buf();
7238523.797680 | 0) 0.068 us | n_tty_set_room();
7238523.797680 | 0) 0.058 us | n_tty_write_wakeup();
7238523.797681 | 0) | __wake_up() {
7238523.797682 | 0) 0.060 us | _raw_spin_lock_irqsave();
7238523.797682 | 0) | __wake_up_common() {
7238523.797683 | 0) 0.083 us | pollwake();
7238523.797683 | 0) 0.739 us | }
7238523.797683 | 0) 0.069 us | _raw_spin_unlock_irqrestore();
7238523.797684 | 0) 2.745 us | }
7238523.797684 | 0) 0.061 us | n_tty_set_room();
7238523.797685 | 0) 0.074 us | up_read();
7238523.797685 | 0) | remove_wait_queue() {
7238523.797685 | 0) 0.075 us | _raw_spin_lock_irqsave();
7238523.797686 | 0) 0.070 us | _raw_spin_unlock_irqrestore();
7238523.797686 | 0) 1.110 us | }
7238523.797687 | 0) 0.146 us | mutex_unlock();
7238523.797687 | 0) 159524.0 us | }
7238523.797688 | 0) | tty_ldisc_deref() {
7238523.797688 | 0) 0.070 us | ldsem_up_read();
7238523.797689 | 0) 0.739 us | }
7238523.797689 | 0) 0.066 us | get_seconds();
7238523.797690 | 0) 159528.3 us | }
7238523.797690 | 0) 0.298 us | __fsnotify_parent();
7238523.797691 | 0) 0.179 us | fsnotify();
7238523.797692 | 0) 159534.6 us | }
7238523.797762 | 0) | vfs_read() {
7238523.797763 | 0) | rw_verify_area() {
7238523.797763 | 0) | security_file_permission() {
7238523.797764 | 0) | apparmor_file_permission() {
7238523.797764 | 0) 0.165 us | common_file_perm();
7238523.797765 | 0) 0.732 us | }
7238523.797765 | 0) 0.081 us | __fsnotify_parent();
7238523.797766 | 0) 0.094 us | fsnotify();
7238523.797766 | 0) 2.711 us | }
7238523.797767 | 0) 3.386 us | }
7238523.797767 | 0) | tty_read() {
7238523.797767 | 0) 0.077 us | tty_paranoia_check();
7238523.797768 | 0) | tty_ldisc_ref_wait() {
7238523.797768 | 0) 0.083 us | ldsem_down_read();
7238523.797769 | 0) 0.686 us | }
7238523.797769 | 0) | n_tty_read() {
7238523.797770 | 0) 0.071 us | _raw_spin_lock_irq();
7238523.797770 | 0) 0.111 us | mutex_lock_interruptible();
7238523.797771 | 0) 0.072 us | down_read();
7238523.797771 | 0) | add_wait_queue() {
7238523.797772 | 0) 0.083 us | _raw_spin_lock_irqsave();
7238523.797772 | 0) 0.085 us | _raw_spin_unlock_irqrestore();
7238523.797773 | 0) 1.124 us | }
7238523.797773 | 0) 0.066 us | tty_hung_up_p();
7238523.797774 | 0) 0.090 us | n_tty_set_room();
7238523.797774 | 0) 0.064 us | up_read();
7238523.797775 | 0) | schedule_timeout() {
7238523.797775 | 0) | schedule() {
7238523.797775 | 0) | __schedule() {
7238523.797776 | 0) 0.083 us | rcu_note_context_switch();
7238523.797776 | 0) 0.078 us | _raw_spin_lock_irq();
7238523.797777 | 0) | deactivate_task() {
7238523.797777 | 0) | dequeue_task() {
7238523.797777 | 0) 0.191 us | update_rq_clock();
7238523.797778 | 0) | dequeue_task_fair() {
7238523.797778 | 0) | dequeue_entity() {
7238523.797779 | 0) | update_curr() {
7238523.797779 | 0) 0.179 us | cpuacct_charge();
7238523.797780 | 0) 0.902 us | }
7238523.797780 | 0) 0.070 us | __update_entity_load_avg_contrib();
7238523.797781 | 0) 0.152 us | update_cfs_rq_blocked_load();
7238523.797781 | 0) 0.073 us | clear_buddies();
7238523.797782 | 0) 0.074 us | account_entity_dequeue();
7238523.797783 | 0) | update_cfs_shares() {
7238523.797783 | 0) 0.111 us | update_curr();
7238523.797783 | 0) 0.082 us | account_entity_dequeue();
7238523.797784 | 0) 0.081 us | account_entity_enqueue();
7238523.797785 | 0) 2.330 us | }
7238523.797785 | 0) 6.633 us | } /* dequeue_entity */
7238523.797786 | 0) | dequeue_entity() {
7238523.797786 | 0) 0.078 us | update_curr();
7238523.797787 | 0) 0.086 us | update_cfs_rq_blocked_load();
7238523.797787 | 0) 0.076 us | clear_buddies();
7238523.797788 | 0) 0.079 us | account_entity_dequeue();
7238523.797789 | 0) 0.074 us | update_cfs_shares();
7238523.797789 | 0) 3.287 us | }
7238523.797789 | 0) 0.074 us | hrtick_update();
7238523.797790 | 0) 11.606 us | }
7238523.797790 | 0) 12.879 us | }
7238523.797790 | 0) 13.406 us | }
7238523.797791 | 0) | pick_next_task_fair() {
7238523.797791 | 0) 0.073 us | check_cfs_rq_runtime();
7238523.797792 | 0) | pick_next_entity() {
7238523.797792 | 0) 0.076 us | clear_buddies();
7238523.797793 | 0) 0.663 us | }
7238523.797793 | 0) | put_prev_entity() {
7238523.797793 | 0) 0.076 us | check_cfs_rq_runtime();
7238523.797794 | 0) 0.598 us | }
7238523.797794 | 0) | put_prev_entity() {
7238523.797794 | 0) 0.078 us | check_cfs_rq_runtime();
7238523.797795 | 0) 0.618 us | }
7238523.797795 | 0) | set_next_entity() {
7238523.797795 | 0) 0.096 us | update_stats_wait_end();
7238523.797796 | 0) 0.738 us | }
7238523.797796 | 0) 5.222 us | }
7238523.797797 | 0) 0.078 us | paravirt_start_context_switch();
7238523.797798 | 0) 0.071 us | xen_read_cr0();
7238523.797799 | 0) | xen_write_cr0() {
7238523.797799 | 0) 0.078 us | paravirt_get_lazy_mode();
7238523.797800 | 0) 0.084 us | __xen_mc_entry();
7238523.797800 | 0) 0.076 us | paravirt_get_lazy_mode();
7238523.797801 | 0) 1.798 us | }
7238523.797801 | 0) | xen_load_sp0() {
7238523.797801 | 0) 0.080 us | paravirt_get_lazy_mode();
7238523.797802 | 0) 0.076 us | __xen_mc_entry();
7238523.797802 | 0) 0.073 us | paravirt_get_lazy_mode();
7238523.797803 | 0) 1.623 us | }
7238523.797803 | 0) | xen_load_tls() {
7238523.797803 | 0) 0.082 us | paravirt_get_lazy_mode();
7238523.797804 | 0) 0.084 us | paravirt_get_lazy_mode();
7238523.797804 | 0) 0.136 us | load_TLS_descriptor();
7238523.797805 | 0) 0.072 us | load_TLS_descriptor();
7238523.797806 | 0) 0.080 us | load_TLS_descriptor();
7238523.797806 | 0) 0.088 us | paravirt_get_lazy_mode();
7238523.797807 | 0) 3.360 us | }
7238523.797807 | 0) | xen_end_context_switch() {
7238523.797807 | 0) 0.601 us | xen_mc_flush();
7238523.797808 | 0) 0.098 us | paravirt_end_context_switch();
7238523.797809 | 0) 1.902 us | }
7238524.005649 | 0) | finish_task_switch() {
7238524.005653 | 0) | xen_evtchn_do_upcall() {
7238524.005653 | 0) | irq_enter() {
7238524.005653 | 0) 0.138 us | rcu_irq_enter();
7238524.005654 | 0) 0.753 us | }
7238524.005654 | 0) 0.056 us | exit_idle();
7238524.005655 | 0) | __xen_evtchn_do_upcall() {
7238524.005655 | 0) | evtchn_2l_handle_events() {
7238524.005655 | 0) 0.057 us | irq_from_virq();
7238524.005656 | 0) | evtchn_from_irq() {
7238524.005656 | 0) | irq_get_irq_data() {
7238524.005656 | 0) 0.050 us | irq_to_desc();
7238524.005656 | 0) 0.499 us | }
7238524.005657 | 0) 0.958 us | }
7238524.005657 | 0) | get_evtchn_to_irq() {
7238524.005657 | 0) 0.057 us | evtchn_2l_max_channels();
7238524.005658 | 0) 0.400 us | }
7238524.005659 | 0) | generic_handle_irq() {
7238524.005659 | 0) 0.052 us | irq_to_desc();
7238524.005659 | 0) | handle_percpu_irq() {
7238524.005659 | 0) | ack_dynirq() {
7238524.005659 | 0) | evtchn_from_irq() {
7238524.005660 | 0) | irq_get_irq_data() {
7238524.005660 | 0) 0.056 us | irq_to_desc();
7238524.005660 | 0) 0.439 us | }
7238524.005660 | 0) 0.739 us | }
7238524.005661 | 0) 0.051 us | irq_move_irq();
7238524.005661 | 0) 0.051 us | evtchn_2l_clear_pending();
7238524.005661 | 0) 1.963 us | }
7238524.005662 | 0) | handle_irq_event_percpu() {
7238524.005662 | 0) | xen_irq_work_interrupt() {
7238524.005662 | 0) | irq_enter() {
7238524.005662 | 0) 0.053 us | rcu_irq_enter();
7238524.005663 | 0) 0.392 us | }
7238524.005663 | 0) | __wake_up() {
7238524.005663 | 0) 0.058 us | _raw_spin_lock_irqsave();
7238524.005664 | 0) | __wake_up_common() {
7238524.005664 | 0) | autoremove_wake_function() {
7238524.005664 | 0) | default_wake_function() {
7238524.005665 | 0) | try_to_wake_up() {
7238524.005665 | 0) 0.226 us | _raw_spin_lock_irqsave();
7238524.005665 | 0) 0.392 us | task_waking_fair();
7238524.005666 | 0) | select_task_rq_fair() {
7238524.005666 | 0) 0.067 us | source_load();
7238524.005667 | 0) 0.057 us | target_load();
7238524.005667 | 0) 0.065 us | idle_cpu();
7238524.005668 | 0) 0.050 us | cpus_share_cache();
7238524.005668 | 0) 0.080 us | idle_cpu();
7238524.005668 | 0) 2.053 us | }
7238524.005669 | 0) 0.051 us | _raw_spin_lock();
7238524.005669 | 0) | ttwu_do_activate.constprop.124() {
7238524.005669 | 0) | activate_task() {
7238524.005669 | 0) | enqueue_task() {
7238524.005669 | 0) 0.165 us | update_rq_clock();
7238524.005670 | 0) | enqueue_task_fair() {
7238524.005670 | 0) | enqueue_entity() {
7238524.005670 | 0) 0.065 us | update_curr();
7238524.005671 | 0) 0.078 us | __compute_runnable_contrib.part.51();
7238524.005671 | 0) 0.070 us | __update_entity_load_avg_contrib();
7238524.005671 | 0) 0.051 us | update_cfs_rq_blocked_load();
7238524.005672 | 0) 0.069 us | account_entity_enqueue();
7238524.005672 | 0) 0.132 us | update_cfs_shares();
7238524.005673 | 0) 0.054 us | place_entity();
7238524.005673 | 0) 0.081 us | __enqueue_entity();
7238524.005673 | 0) 3.111 us | }
7238524.005673 | 0) | enqueue_entity() {
7238524.005674 | 0) 0.059 us | update_curr();
7238524.005674 | 0) 0.057 us | update_cfs_rq_blocked_load();
7238524.005674 | 0) 0.067 us | account_entity_enqueue();
7238524.005675 | 0) 0.082 us | update_cfs_shares();
7238524.005675 | 0) 0.120 us | place_entity();
7238524.005675 | 0) 0.051 us | __enqueue_entity();
7238524.005676 | 0) 2.075 us | }
7238524.005676 | 0) 0.049 us | hrtick_update();
7238524.005676 | 0) 6.167 us | }
7238524.005676 | 0) 6.979 us | }
7238524.005676 | 0) 7.317 us | }
7238524.005677 | 0) | ttwu_do_wakeup() {
7238524.005677 | 0) | check_preempt_curr() {
7238524.005677 | 0) | resched_task() {
7238524.005677 | 0) | xen_smp_send_reschedule() {
7238524.005677 | 0) | xen_send_IPI_one() {
7238524.005678 | 0) | notify_remote_via_irq() {
7238524.005678 | 0) | evtchn_from_irq() {
7238524.005678 | 0) | irq_get_irq_data() {
7238524.005678 | 0) 0.051 us | irq_to_desc();
7238524.005679 | 0) 0.545 us | }
7238524.005679 | 0) 0.910 us | }
7238524.005680 | 0) 1.962 us | } /* notify_remote_via_irq */
7238524.005680 | 0) 2.332 us | }
7238524.005680 | 0) 2.684 us | }
7238524.005681 | 0) 3.606 us | }
7238524.005681 | 0) 4.064 us | }
7238524.005682 | 0) 5.129 us | }
7238524.005682 | 0) 13.194 us | }
7238524.005683 | 0) 0.066 us | _raw_spin_unlock();
7238524.005683 | 0) 0.165 us | ttwu_stat();
7238524.005684 | 0) 0.070 us | _raw_spin_unlock_irqrestore();
7238524.005684 | 0) 19.634 us | }
7238524.005685 | 0) 20.080 us | }
7238524.005685 | 0) 20.608 us | }
7238524.005685 | 0) 21.348 us | }
7238524.005685 | 0) 0.084 us | _raw_spin_unlock_irqrestore();
7238524.005686 | 0) 22.728 us | }
7238524.005686 | 0) | irq_exit() {
7238524.005687 | 0) 0.077 us | idle_cpu();
7238524.005687 | 0) 0.093 us | rcu_irq_exit();
7238524.005688 | 0) 1.101 us | }
7238524.005688 | 0) 25.644 us | }
7238524.005688 | 0) 0.138 us | add_interrupt_randomness();
7238524.005689 | 0) 0.083 us | note_interrupt();
7238524.005689 | 0) 27.672 us | }
7238524.005690 | 0) 30.410 us | }
7238524.005690 | 0) 31.458 us | }
7238524.005690 | 0) 35.276 us | }
7238524.005691 | 0) 35.797 us | }
7238524.005691 | 0) | irq_exit() {
7238524.005691 | 0) 0.066 us | idle_cpu();
7238524.005692 | 0) 0.080 us | rcu_irq_exit();
7238524.005692 | 0) 1.110 us | }
7238524.005693 | 0) 39.440 us | }
7238524.005693 | 0) 41.142 us | }
7238524.005694 | 0) 207918.1 us | }
7238524.005694 | 0) 207918.7 us | }
7238524.005694 | 0) 207919.4 us | }
7238524.005695 | 0) 0.068 us | down_read();
7238524.005696 | 0) | copy_from_read_buf() {
7238524.005697 | 0) | tty_audit_add_data() {
7238524.005697 | 0) 0.233 us | _raw_spin_lock_irqsave();
7238524.005698 | 0) 0.076 us | _raw_spin_unlock_irqrestore();
7238524.005699 | 0) 0.076 us | _raw_spin_lock_irqsave();
7238524.005699 | 0) 0.078 us | _raw_spin_unlock_irqrestore();
7238524.005700 | 0) 2.696 us | }
7238524.005700 | 0) 4.335 us | }
7238524.005701 | 0) 0.086 us | copy_from_read_buf();
7238524.005701 | 0) 0.074 us | n_tty_set_room();
7238524.005702 | 0) 0.085 us | n_tty_write_wakeup();
7238524.005702 | 0) | __wake_up() {
7238524.005703 | 0) 0.061 us | _raw_spin_lock_irqsave();
7238524.005703 | 0) | __wake_up_common() {
7238524.005703 | 0) 0.080 us | pollwake();
7238524.005704 | 0) 0.687 us | }
7238524.005704 | 0) 0.063 us | _raw_spin_unlock_irqrestore();
7238524.005705 | 0) 2.040 us | }
7238524.005705 | 0) 0.071 us | n_tty_set_room();
7238524.005706 | 0) 0.074 us | up_read();
7238524.005706 | 0) | remove_wait_queue() {
7238524.005706 | 0) 0.074 us | _raw_spin_lock_irqsave();
7238524.005707 | 0) 0.069 us | _raw_spin_unlock_irqrestore();
7238524.005707 | 0) 1.076 us | }
7238524.005708 | 0) 0.139 us | mutex_unlock();
7238524.005708 | 0) 207939.0 us | }
7238524.005709 | 0) | tty_ldisc_deref() {
7238524.005709 | 0) 0.077 us | ldsem_up_read();
7238524.005710 | 0) 0.702 us | }
7238524.005710 | 0) 0.068 us | get_seconds();
7238524.005711 | 0) 207943.4 us | }
7238524.005712 | 0) 0.301 us | __fsnotify_parent();
7238524.005713 | 0) 0.157 us | fsnotify();
7238524.005713 | 0) 207950.3 us | }
7238524.005783 | 0) | vfs_read() {
7238524.005784 | 0) | rw_verify_area() {
7238524.005784 | 0) | security_file_permission() {
7238524.005785 | 0) | apparmor_file_permission() {
7238524.005785 | 0) 0.164 us | common_file_perm();
7238524.005786 | 0) 0.790 us | }
7238524.005786 | 0) 0.080 us | __fsnotify_parent();
7238524.005787 | 0) 0.094 us | fsnotify();
7238524.005787 | 0) 2.683 us | }
7238524.005788 | 0) 3.313 us | }
7238524.005788 | 0) | tty_read() {
7238524.005788 | 0) 0.087 us | tty_paranoia_check();
7238524.005789 | 0) | tty_ldisc_ref_wait() {
7238524.005789 | 0) 0.080 us | ldsem_down_read();
7238524.005790 | 0) 0.683 us | }
7238524.005790 | 0) | n_tty_read() {
7238524.005791 | 0) 0.080 us | _raw_spin_lock_irq();
7238524.005791 | 0) 0.104 us | mutex_lock_interruptible();
7238524.005792 | 0) 0.070 us | down_read();
7238524.005792 | 0) | add_wait_queue() {
7238524.005793 | 0) 0.079 us | _raw_spin_lock_irqsave();
7238524.005793 | 0) 0.087 us | _raw_spin_unlock_irqrestore();
7238524.005794 | 0) 1.147 us | }
7238524.005794 | 0) 0.078 us | tty_hung_up_p();
7238524.005795 | 0) 0.071 us | n_tty_set_room();
7238524.005795 | 0) 0.077 us | up_read();
7238524.005796 | 0) | schedule_timeout() {
7238524.005796 | 0) | schedule() {
7238524.005796 | 0) | __schedule() {
7238524.005797 | 0) 0.087 us | rcu_note_context_switch();
7238524.005797 | 0) 0.075 us | _raw_spin_lock_irq();
7238524.005798 | 0) | deactivate_task() {
7238524.005798 | 0) | dequeue_task() {
7238524.005798 | 0) 0.177 us | update_rq_clock();
7238524.005799 | 0) | dequeue_task_fair() {
7238524.005799 | 0) | dequeue_entity() {
7238524.005800 | 0) | update_curr() {
7238524.005800 | 0) 0.334 us | cpuacct_charge();
7238524.005801 | 0) 1.199 us | }
7238524.005802 | 0) 0.081 us | __update_entity_load_avg_contrib();
7238524.005802 | 0) 0.064 us | update_cfs_rq_blocked_load();
7238524.005803 | 0) 0.076 us | clear_buddies();
7238524.005803 | 0) 0.079 us | account_entity_dequeue();