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2025-11-22 - 07:57
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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 rack0slot7.osadl.org (updated Sat Nov 22, 2025 00:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3846534994210,420cyclictest0-21swapper/1523:40:047
3846534994210,420cyclictest0-21swapper/1523:40:047
3846534994150,414cyclictest85550irq/166-nvme0q820:32:057
3846534994150,414cyclictest0-21swapper/1523:55:067
3846534994150,414cyclictest0-21swapper/1523:50:437
3846534994150,414cyclictest0-21swapper/1523:48:497
3846534994150,414cyclictest0-21swapper/1523:36:547
3846534994150,414cyclictest0-21swapper/1523:34:017
3846534994150,414cyclictest0-21swapper/1523:26:407
3846534994150,414cyclictest0-21swapper/1520:39:447
3846534994150,414cyclictest0-21swapper/1520:28:577
3846534994150,414cyclictest0-21swapper/1520:19:027
3846534994140,413cyclictest0-21swapper/1523:21:117
384651099411406,3cyclictest323654-21Xorg23:30:5514
384652599397397,0cyclictest0-21swapper/1320:25:265
3846512993890,388cyclictest4143739-21daemon-init20:20:2815
384651299388386,2cyclictest4030413-21kworker/u64:0+events_unbound20:26:1815
384648199384384,0cyclictest0-21swapper/120:26:171
3846530993730,369cyclictest0-21swapper/1420:20:236
384653099356354,1cyclictest0-21swapper/1420:37:596
384649199353348,3cyclictest0-21swapper/423:30:5610
3846530993510,348cyclictest0-21swapper/1423:30:506
384653099350347,1cyclictest0-21swapper/1423:37:366
384649199345343,1cyclictest651806-21kworker/u64:3+events_unbound23:40:0410
384649199345343,1cyclictest651806-21kworker/u64:3+events_unbound23:40:0310
3846530993330,332cyclictest0-21swapper/1423:27:516
3846530993330,332cyclictest0-21swapper/1420:18:466
3846530993320,331cyclictest0-21swapper/1423:49:226
3846530993320,331cyclictest0-21swapper/1423:41:056
3846530993320,331cyclictest0-21swapper/1423:41:056
3846530993320,331cyclictest0-21swapper/1423:24:086
3846530993320,331cyclictest0-21swapper/1420:40:126
3846530993320,331cyclictest0-21swapper/1420:31:206
3846530993320,331cyclictest0-21swapper/1420:25:516
384652299312309,1cyclictest0-21swapper/1223:37:364
384652299302292,9cyclictest323654-21Xorg23:27:544
384651599301297,2cyclictest710128-21dd23:37:352
3846520993000,299cyclictest510805-21TaskCon~ller3
384652299298295,1cyclictest0-21swapper/1223:30:554
384649199298290,7cyclictest390842-21Renderer20:23:4110
384651599295291,3cyclictest390842-21Renderer20:20:402
384649199293289,3cyclictest323654-21Xorg20:29:1210
384649399292290,2cyclictest0-21swapper/523:29:0011
384652599291287,2cyclictest0-21swapper/1323:55:055
384652299290290,0cyclictest0-21swapper/1223:40:044
384652299290290,0cyclictest0-21swapper/1223:40:034
384647799290283,6cyclictest323654-21Xorg23:30:590
384652099289283,5cyclictest323654-21Xorg23:22:223
384652099289280,8cyclictest323654-21Xorg20:39:173
384651599289281,6cyclictest0-21swapper/1023:27:542
384651099289283,5cyclictest390842-21Renderer20:41:5214
3846493992890,283cyclictest0-21swapper/523:45:1311
384648199289282,6cyclictest323654-21Xorg23:42:191
384648199289282,6cyclictest323654-21Xorg23:42:191
384648199289282,6cyclictest323654-21Xorg23:20:261
3846477992890,4cyclictest0-21swapper/023:43:110
3846477992890,4cyclictest0-21swapper/023:43:100
384652599288282,5cyclictest323654-21Xorg23:42:025
384652599288282,5cyclictest323654-21Xorg23:42:025
384652099288282,5cyclictest323654-21Xorg23:54:123
384651099288284,2cyclictest0-21swapper/820:24:1414
384651099288283,4cyclictest323654-21Xorg20:39:0914
3846493992880,1cyclictest0-21swapper/523:20:1711
384647799288282,5cyclictest323654-21Xorg20:29:360
384652299287282,5cyclictest323654-21Xorg20:30:084
384652099287282,4cyclictest323925-21gnome-shell23:36:593
384651599287286,1cyclictest29450irq/128-xhci_hcd20:26:172
384651599287281,5cyclictest323654-21Xorg23:34:072
384651299287278,8cyclictest323654-21Xorg20:18:5015
384651099287281,5cyclictest323654-21Xorg23:51:5014
384650199287283,3cyclictest323654-21Xorg23:35:4512
384649399287281,5cyclictest323654-21Xorg20:27:0211
384648199287282,4cyclictest323654-21Xorg23:48:421
384652599286281,4cyclictest323654-21Xorg23:48:025
384652299286282,3cyclictest323654-21Xorg20:43:084
384652099286282,3cyclictest323654-21Xorg20:40:513
384652099286280,5cyclictest323654-21Xorg23:25:473
3846520992860,285cyclictest730145-21StreamT~3
3846520992860,285cyclictest730145-21StreamT~3
384650199286281,4cyclictest323654-21Xorg20:32:5712
384649199286282,3cyclictest323654-21Xorg23:46:3410
384649199286281,4cyclictest323654-21Xorg23:55:3110
384648799286282,3cyclictest323654-21Xorg23:20:349
3846483992860,285cyclictest0-21swapper/223:40:408
3846483992860,285cyclictest0-21swapper/223:40:398
3846483992860,285cyclictest0-21swapper/220:27:308
384652599285281,3cyclictest323654-21Xorg23:53:515
384652599285281,3cyclictest323654-21Xorg23:23:525
384652599285281,3cyclictest323654-21Xorg20:20:065
384652299285281,3cyclictest323925-21gnome-shell20:24:584
384652299285280,4cyclictest323654-21Xorg23:50:394
384651599285280,4cyclictest323654-21Xorg20:31:172
384651299285281,3cyclictest323654-21Xorg23:26:0715
384651299285280,4cyclictest323654-21Xorg23:43:3115
384651299285280,4cyclictest323654-21Xorg23:43:3015
384651299285280,4cyclictest323654-21Xorg20:36:5715
384651299285280,4cyclictest323654-21Xorg20:31:0015
3846512992850,284cyclictest0-21swapper/923:20:2515
3846512992850,283cyclictest0-21swapper/923:36:3315
384651099285280,4cyclictest323654-21Xorg23:24:4014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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