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2026-03-26 - 19:40
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot2.osadl.org (updated Thu Mar 26, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21292121040,0sleep40-21swapper/409:23:384
5911662970,1sleep7591167-21tr12:03:227
5715772970,0sleep50-21swapper/511:53:265
4439322780,1sleep7443933-21ssh11:03:037
4115091995553,2cyclictest395620-21kworker/u16:5+events_unbound10:53:325
4115091995553,2cyclictest3415691-21kworker/u16:5+flush-8:007:18:185
4115091995351,2cyclictest335520-21kworker/u16:3+events_unbound10:23:325
411509999520,50cyclictest635476-21latency_hist12:23:027
4115091995149,2cyclictest585448-21kworker/u16:0+flush-8:012:08:325
4115091995149,2cyclictest383629-21kworker/u16:1+flush-8:010:43:325
4115099995049,0cyclictest0-21swapper/707:30:507
4115099995049,0cyclictest0-21swapper/707:30:507
4115091995049,1cyclictest395620-21kworker/u16:5+events_unbound11:06:315
4115091995048,2cyclictest177026-21kworker/u16:4+flush-8:009:13:345
4115099994944,4cyclictest515695-21latency_hist11:33:027
4115091994947,2cyclictest383629-21kworker/u16:1+flush-8:010:58:355
4115091994947,2cyclictest238384-21kworker/u16:2+flush-8:009:43:175
4115091994846,2cyclictest4166519-21kworker/u16:3+events_unbound09:08:315
411478224838,7sleep50-21swapper/507:02:375
4115091994745,2cyclictest441574-21kworker/u16:0+events_unbound11:27:535
4115091994745,2cyclictest395620-21kworker/u16:5+events_unbound12:28:365
4115091994745,2cyclictest261960-21kworker/u16:0+events_unbound09:52:255
4115091994644,2cyclictest261960-21kworker/u16:0+events_unbound10:53:005
4115091994644,2cyclictest261960-21kworker/u16:0+events_unbound10:28:295
4115091994644,2cyclictest238384-21kworker/u16:2+events_unbound10:40:365
4115096994542,2cyclictest3405491-21kworker/u16:4+events_unbound07:08:066
4115091994543,2cyclictest585448-21kworker/u16:0+events_unbound12:05:525
4115091994543,2cyclictest395620-21kworker/u16:5+events_unbound11:44:535
4115091994543,2cyclictest177026-21kworker/u16:4+events_unbound09:41:095
4115091994442,2cyclictest275476-21kworker/u16:1+events_unbound10:07:055
4115091994341,2cyclictest146014-21kworker/u16:1+events_unbound09:25:295
4115091994340,2cyclictest146014-21kworker/u16:1+events_unbound09:28:135
4115089994341,2cyclictest238384-21kworker/u16:2+events_unbound10:38:194
4115091994240,2cyclictest467802-21kworker/u16:2+events_unbound11:15:015
4115091994240,2cyclictest261960-21kworker/u16:0+flush-8:010:13:345
4115091994240,2cyclictest261960-21kworker/u16:0+flush-8:010:13:345
4115091994139,2cyclictest68851-21kworker/u16:2+flush-8:008:28:275
4115091994139,2cyclictest395620-21kworker/u16:5+flush-8:011:33:415
4115091994139,2cyclictest395620-21kworker/u16:5+flush-8:011:33:415
4115091994139,2cyclictest395620-21kworker/u16:5+events_unbound11:48:155
4115091994139,2cyclictest395620-21kworker/u16:5+events_unbound11:40:455
4115091994139,2cyclictest238384-21kworker/u16:2+events_unbound10:01:015
4115091994139,2cyclictest238384-21kworker/u16:2+events_unbound09:36:455
4115091994038,2cyclictest585448-21kworker/u16:0+events_unbound12:18:345
4115091994038,2cyclictest467802-21kworker/u16:2+events_unbound11:20:165
4115091994038,2cyclictest395620-21kworker/u16:5+events_unbound12:26:005
4115091994038,2cyclictest395620-21kworker/u16:5+events_unbound12:02:255
4115091994037,2cyclictest4177880-21kworker/u16:4+events_unbound07:48:165
4115099993934,4cyclictest440837-21switchtime10:58:417
4115096993935,3cyclictest383629-21kworker/u16:1+flush-8:010:43:036
4115091993937,2cyclictest395620-21kworker/u16:5+flush-8:012:13:205
4115091993937,2cyclictest395620-21kworker/u16:5+events_unbound11:30:495
4115091993937,2cyclictest383629-21kworker/u16:1+events_unbound11:10:415
4115091993937,2cyclictest335520-21kworker/u16:3+events_unbound10:20:535
4115091993937,2cyclictest261960-21kworker/u16:0+flush-8:009:54:095
4115091993937,2cyclictest238384-21kworker/u16:2+events_unbound10:10:405
4115091993936,2cyclictest335520-21kworker/u16:3+events_unbound10:33:065
4115089993936,2cyclictest395620-21kworker/u16:5+flush-8:011:48:184
411481123929,7sleep40-21swapper/407:03:004
4115091993836,2cyclictest68851-21kworker/u16:2+flush-8:008:23:325
4115091993835,2cyclictest68851-21kworker/u16:2+events_unbound08:18:175
41145692383,31sleep70-21swapper/706:59:347
4115096993734,2cyclictest585448-21kworker/u16:0+flush-8:012:17:576
4115091993735,2cyclictest146014-21kworker/u16:1+events_unbound09:04:345
4115091993735,2cyclictest11766-21kworker/u16:0+events_unbound08:48:335
4115089993735,2cyclictest467802-21kworker/u16:2+flush-8:011:43:314
4115099993635,0cyclictest0-21swapper/709:32:557
4115089993634,2cyclictest4177879-21kworker/u16:1+events_unbound07:33:304
4115089993634,2cyclictest146014-21kworker/u16:1+events_unbound08:58:274
4115091993533,2cyclictest3405491-21kworker/u16:4+events_unbound07:13:345
4115089993533,2cyclictest4177880-21kworker/u16:4+events_unbound07:39:534
4115089993533,2cyclictest177026-21kworker/u16:4+events_unbound09:13:444
4115099993433,0cyclictest0-21swapper/708:07:547
411509999340,33cyclictest1033-21rs:main7
4115091993432,2cyclictest4166519-21kworker/u16:3+flush-8:007:58:265
4115089993432,2cyclictest383629-21kworker/u16:1+events_unbound11:02:394
411470923424,7sleep60-21swapper/607:01:346
4115099993330,2cyclictest108248-21df08:38:157
4115096993331,2cyclictest395620-21kworker/u16:5+flush-8:011:48:306
4115091993331,2cyclictest177026-21kworker/u16:4+events_unbound09:21:015
4115089993331,2cyclictest238384-21kworker/u16:2+events_unbound10:37:464
4115089993331,2cyclictest238384-21kworker/u16:2+events_unbound10:15:434
4115089993331,2cyclictest238384-21kworker/u16:2+events_unbound10:15:434
4115089993331,2cyclictest146014-21kworker/u16:1+events_unbound09:03:464
4115089993330,2cyclictest261960-21kworker/u16:0+events_unbound10:43:104
4115099993229,2cyclictest393267-21ssh10:38:517
4115099993227,4cyclictest611573-21latency_hist12:13:027
4115089993230,2cyclictest261960-21kworker/u16:0+events_unbound10:49:044
2688962320,1chrt268897-21kthreadcore09:48:257
4115099993128,2cyclictest525416-21ssh11:33:477
4115099993128,2cyclictest525416-21ssh11:33:477
4115091993129,2cyclictest146014-21kworker/u16:1+flush-8:008:58:265
4115089993129,2cyclictest68851-21kworker/u16:2+events_unbound08:19:534
4115089993129,2cyclictest3405491-21kworker/u16:4+events_unbound07:15:494
4115089993129,2cyclictest3405491-21kworker/u16:4+events_unbound07:05:534
4115089993129,2cyclictest275476-21kworker/u16:1+events_unbound10:03:434
4115089993129,2cyclictest146014-21kworker/u16:1+flush-8:009:18:364
4115099993029,0cyclictest0-21swapper/708:28:357
4115099993029,0cyclictest0-21swapper/707:11:417
4115099993025,4cyclictest563610-21latency_hist11:53:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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