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2026-08-09 - 11:26
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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 Sun Aug 09, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17000382990,1sleep71700040-21tr22:13:447
1296110997169,2cyclictest1484118-21kworker/u16:0+events_unbound22:13:516
20313602610,1sleep72031363-21cut00:33:377
129564525443,8sleep40-21swapper/419:05:434
129564525443,8sleep40-21swapper/419:05:434
129579225319,29sleep70-21swapper/719:07:467
129579225319,29sleep70-21swapper/719:07:467
1296104995048,2cyclictest614225-21kworker/u16:6+events_unbound20:43:484
1296104995048,2cyclictest1484118-21kworker/u16:0+events_unbound21:38:524
1296110994947,2cyclictest1799085-21kworker/u16:2+events_unbound00:03:556
1296104994947,2cyclictest1945984-21kworker/u16:4+events_unbound00:28:504
1296104994947,2cyclictest1232262-21kworker/u16:1+flush-8:019:33:494
1296104994947,1cyclictest1847425-21kworker/u16:0+events_unbound23:48:344
1296104994846,2cyclictest1329470-21kworker/u16:3+events_unbound19:28:494
1296104994744,2cyclictest1884422-21kworker/u16:1+events_unbound23:33:514
1296110994644,2cyclictest1232262-21kworker/u16:1+flush-8:019:48:486
1296108994644,2cyclictest1847425-21kworker/u16:0+events_unbound00:08:465
1296104994643,2cyclictest1484118-21kworker/u16:0+events_unbound21:03:324
129553224621,7sleep50-21swapper/519:04:075
129553224621,7sleep50-21swapper/519:04:075
1296110994543,2cyclictest2003279-21kworker/u16:1+events_unbound00:33:456
1296110994543,2cyclictest1764024-21kworker/u16:0+events_unbound23:03:476
1296110994542,2cyclictest1688972-21kworker/u16:1+events_unbound22:18:356
1296110994442,2cyclictest1688972-21kworker/u16:1+events_unbound22:23:346
1296110994442,2cyclictest1523346-21kworker/u16:3+events_unbound22:28:506
1296108994442,2cyclictest1368256-21kworker/u16:0+events_unbound19:43:445
1296104994442,2cyclictest1484118-21kworker/u16:0+events_unbound22:13:414
1296115994337,5cyclictest1763604-21latency_hist22:43:197
1296108994341,2cyclictest1847425-21kworker/u16:0+events_unbound23:38:465
1296108994340,2cyclictest1523346-21kworker/u16:3+events_unbound22:38:345
1296108994340,2cyclictest1445753-21kworker/u16:2+flush-8:020:33:365
1296104994341,2cyclictest1847425-21kworker/u16:0+events_unbound00:18:504
1296104994341,2cyclictest1688972-21kworker/u16:1+flush-8:022:28:334
1296110994240,2cyclictest1426132-21kworker/u16:1+flush-8:020:38:476
1296104994240,2cyclictest1847425-21kworker/u16:0+events_unbound23:43:514
1296110994139,2cyclictest614225-21kworker/u16:6+events_unbound20:08:516
1296110994139,2cyclictest1523346-21kworker/u16:3+flush-8:021:43:346
1296108994139,2cyclictest1688972-21kworker/u16:1+events_unbound23:18:325
1296108994138,2cyclictest614225-21kworker/u16:6+flush-8:020:48:335
1296104994139,2cyclictest1504046-21kworker/u16:1+events_unbound21:08:334
1296104994139,2cyclictest1368256-21kworker/u16:0+flush-8:020:03:444
17274572400,0sleep71727458-21systemd-run22:28:187
1296108994038,2cyclictest1426132-21kworker/u16:1+flush-8:020:28:345
1296108994038,2cyclictest1276574-21kworker/u16:0+flush-8:019:13:435
1296108994036,3cyclictest1799085-21kworker/u16:2+flush-8:023:43:495
1296104994038,2cyclictest1368256-21kworker/u16:0+events_unbound20:13:484
1296104994038,2cyclictest1368256-21kworker/u16:0+events_unbound20:13:484
1296110993937,2cyclictest1945984-21kworker/u16:4+flush-8:000:13:556
1296110993937,2cyclictest1688972-21kworker/u16:1+flush-8:022:43:446
1296104993937,2cyclictest614225-21kworker/u16:6+flush-8:019:23:494
1296104993937,2cyclictest1523346-21kworker/u16:3+flush-8:021:13:484
1296104993937,2cyclictest1523346-21kworker/u16:3+events_unbound22:38:094
1296104993937,2cyclictest1386941-21kworker/u16:2+flush-8:019:53:374
1296115993836,1cyclictest1533027-21diskmemload22:13:187
1296110993836,2cyclictest1822071-21kworker/u16:3+events_unbound23:10:206
1296110993836,2cyclictest1799085-21kworker/u16:2+events_unbound23:43:356
1296110993836,2cyclictest1305978-21kworker/u16:2+events_unbound19:18:356
1296104993835,2cyclictest1764024-21kworker/u16:0+events_unbound22:46:574
129560723828,7sleep60-21swapper/619:05:136
129560723828,7sleep60-21swapper/619:05:136
1296110993735,2cyclictest614225-21kworker/u16:6+flush-8:019:28:426
1296110993735,2cyclictest1884422-21kworker/u16:1+events_unbound23:37:126
1296110993735,2cyclictest1523346-21kworker/u16:3+flush-8:021:29:206
1296108993736,1cyclictest1822071-21kworker/u16:3+events_unbound23:13:535
1296108993735,2cyclictest1523346-21kworker/u16:3+flush-8:022:13:365
1296108993735,2cyclictest1523346-21kworker/u16:3+events_unbound21:38:485
1296108993734,2cyclictest614225-21kworker/u16:6+flush-8:020:53:205
1296104993735,2cyclictest2003279-21kworker/u16:1+events_unbound00:23:474
1296104993735,2cyclictest1484118-21kworker/u16:0+events_unbound22:10:404
1296115993634,1cyclictest0-21swapper/719:13:347
1296115993630,5cyclictest1445573-21latency_hist20:23:197
1296110993634,2cyclictest1557508-21kworker/u16:4+events_unbound21:20:576
1296108993634,2cyclictest1847425-21kworker/u16:0+events_unbound00:13:455
1296108993634,2cyclictest1799085-21kworker/u16:2+events_unbound00:29:565
1296108993634,2cyclictest1523346-21kworker/u16:3+events_unbound22:26:085
1296104993634,2cyclictest1799085-21kworker/u16:2+events_unbound23:42:524
1296104993634,2cyclictest1688972-21kworker/u16:1+flush-8:023:14:014
1296104993634,2cyclictest1484118-21kworker/u16:0+events_unbound21:52:044
1296104993634,2cyclictest1426132-21kworker/u16:1+flush-8:020:38:434
1296104993634,2cyclictest1305978-21kworker/u16:2+events_unbound19:13:484
1296104993633,2cyclictest1688972-21kworker/u16:1+events_unbound22:38:504
1296110993533,2cyclictest1764024-21kworker/u16:0+events_unbound22:53:356
1296110993533,2cyclictest1688972-21kworker/u16:1+events_unbound23:24:246
1296110993533,2cyclictest1445753-21kworker/u16:2+events_unbound20:43:536
1296110993532,2cyclictest614225-21kworker/u16:6+events_unbound20:58:336
1296110993532,2cyclictest614225-21kworker/u16:6+events_unbound20:58:336
1296110993532,2cyclictest1484118-21kworker/u16:0+flush-8:021:33:516
1296110993532,2cyclictest1386941-21kworker/u16:2+flush-8:019:53:206
1296108993533,2cyclictest1799085-21kworker/u16:2+flush-8:023:23:345
1296108993533,2cyclictest1643005-21kworker/u16:5+events_unbound21:58:485
1296108993533,2cyclictest1523346-21kworker/u16:3+events_unbound22:19:495
1296108993533,2cyclictest1523346-21kworker/u16:3+events_unbound22:03:575
1296108993533,2cyclictest1504046-21kworker/u16:1+flush-8:021:18:455
1296108993533,2cyclictest1484118-21kworker/u16:0+events_unbound21:03:495
1296108993533,2cyclictest1368256-21kworker/u16:0+flush-8:020:03:405
1296108993532,2cyclictest1884422-21kworker/u16:1+events_unbound23:33:205
1296104993533,2cyclictest1847425-21kworker/u16:0+events_unbound23:21:014
1296104993533,2cyclictest1523346-21kworker/u16:3+flush-8:021:34:384
1296104993532,2cyclictest1945984-21kworker/u16:4+events_unbound00:13:254
18847022340,1chrt1884459-21latency_hist23:33:187
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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