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2026-06-22 - 14:50
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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 rack0slot5.osadl.org (updated Mon Jun 22, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39591199954423,520cyclictest0-21swapper/1421:44:026
395907899542542,0cyclictest0-21swapper/421:43:0210
39591199953613,522cyclictest0-21swapper/1421:50:026
39591149953630,505cyclictest0-21swapper/1221:35:024
39590729953431,503cyclictest0-21swapper/223:01:028
39590919951623,492cyclictest0-21swapper/719:28:0213
39590639951221,29cyclictest0-21swapper/021:33:020
395907899495495,0cyclictest4028060-21kworker/4:4+i915-unordered21:35:0210
395908699494492,2cyclictest4072407-21kworker/6:1+i915-unordered21:44:0212
39590639949030,459cyclictest0-21swapper/023:01:020
395911699486485,1cyclictest4116664-21kworker/13:2+i915-unordered22:38:025
395908699486484,2cyclictest4088371-21kworker/6:0+i915-unordered21:50:0212
395909799485484,1cyclictest0-21swapper/922:34:0215
39590639948421,462cyclictest0-21swapper/020:54:020
395911699482481,1cyclictest0-21swapper/1320:54:025
39590639948118,462cyclictest0-21swapper/021:44:020
39590919947729,28cyclictest0-21swapper/723:07:2413
39590639947727,29cyclictest0-21swapper/019:42:250
395911699473471,2cyclictest4077210-21kworker/13:1+i915-unordered21:36:025
39590919947223,31cyclictest0-21swapper/722:10:4513
3959063994728,463cyclictest0-21swapper/021:50:020
39590919947122,30cyclictest0-21swapper/721:56:4813
39590919946920,30cyclictest0-21swapper/721:03:2313
39590919946920,30cyclictest0-21swapper/721:03:2313
39590919946824,28cyclictest0-21swapper/720:38:4713
39590919946720,30cyclictest0-21swapper/721:59:4613
39591099946621,31cyclictest0-21swapper/1123:37:473
39590919946619,30cyclictest0-21swapper/720:16:2513
39590919946518,29cyclictest0-21swapper/723:20:2513
39590919946518,29cyclictest0-21swapper/721:30:2513
39590919946517,29cyclictest0-21swapper/720:44:4513
39590919946517,29cyclictest0-21swapper/700:36:4313
39591099946413,30cyclictest0-21swapper/1122:55:443
39590979946421,30cyclictest0-21swapper/922:49:0215
39590919946418,28cyclictest0-21swapper/722:33:4513
39590919946417,28cyclictest0-21swapper/721:40:4713
39590919946416,29cyclictest0-21swapper/723:51:2513
39590919946416,29cyclictest0-21swapper/723:51:2513
39590919946415,30cyclictest0-21swapper/700:30:2513
3959102994630,3cyclictest0-21swapper/1022:15:132
39590919946317,29cyclictest0-21swapper/723:05:2513
39590919946214,30cyclictest0-21swapper/721:16:2513
39590919946214,29cyclictest0-21swapper/722:03:4613
3959063994620,461cyclictest0-21swapper/022:34:020
39591199945740,0cyclictest0-21swapper/1419:16:026
395906399457455,2cyclictest0-21swapper/022:38:020
3959072994534,30cyclictest0-21swapper/219:17:258
3959072994534,28cyclictest0-21swapper/222:52:258
3959086994529,442cyclictest0-21swapper/620:11:0212
395912499451448,2cyclictest4092302-21kworker/u64:13+events_unbound22:29:027
395909399451450,1cyclictest69750irq/159-i91522:38:0214
3959091994507,30cyclictest0-21swapper/723:31:5713
39590639945013,436cyclictest0-21swapper/019:28:020
3959124994496,28cyclictest0-21swapper/1520:06:027
39591029944924,424cyclictest0-21swapper/1022:11:252
3959102994490,448cyclictest0-21swapper/1022:20:472
39591149944825,422cyclictest0-21swapper/1219:58:254
39590789944811,30cyclictest0-21swapper/421:13:0210
39591149944726,420cyclictest0-21swapper/1220:40:484
3959091994470,446cyclictest0-21swapper/719:34:0213
39590729944725,421cyclictest0-21swapper/219:47:468
395906799447446,1cyclictest0-21swapper/121:29:021
395906399447446,1cyclictest4116813-21kworker/0:2+pm23:32:570
39590919944626,419cyclictest0-21swapper/721:36:4713
39590919944625,420cyclictest0-21swapper/721:26:2513
39590919944625,420cyclictest0-21swapper/720:36:4613
39590729944625,420cyclictest0-21swapper/200:17:238
39590729944624,421cyclictest0-21swapper/223:39:238
39591199944516,28cyclictest0-21swapper/1400:31:576
39591099944522,422cyclictest0-21swapper/1121:01:463
39590919944523,421cyclictest0-21swapper/719:20:2313
39590789944525,29cyclictest0-21swapper/423:19:0210
39590729944525,419cyclictest0-21swapper/222:22:268
39590679944525,419cyclictest0-21swapper/122:15:231
39590679944524,420cyclictest0-21swapper/123:14:241
39590639944523,421cyclictest0-21swapper/022:02:250
39590639944522,420cyclictest0-21swapper/023:46:460
39590639944522,420cyclictest0-21swapper/023:46:460
395909199444444,0cyclictest0-21swapper/721:50:4513
39590919944426,417cyclictest0-21swapper/720:54:4513
39590919944424,419cyclictest0-21swapper/720:08:2313
39590919944423,420cyclictest0-21swapper/721:45:4613
39590679944425,418cyclictest0-21swapper/100:12:251
39590679944424,419cyclictest0-21swapper/120:18:261
39591149944322,420cyclictest0-21swapper/1219:37:484
39590919944318,29cyclictest0-21swapper/722:31:2313
39590919944318,29cyclictest0-21swapper/719:41:2313
395908299443442,1cyclictest4032084-21kworker/5:0+i915-unordered20:54:0211
39590729944323,419cyclictest0-21swapper/223:13:238
39590639944322,420cyclictest0-21swapper/021:12:250
39591149944219,422cyclictest0-21swapper/1222:59:254
39591099944219,422cyclictest0-21swapper/1123:11:243
39591099944219,420cyclictest0-21swapper/1123:18:243
39590919944223,417cyclictest0-21swapper/721:19:2413
39590919944223,417cyclictest0-21swapper/720:48:4613
3959074994421,29cyclictest0-21swapper/323:10:029
39590729944221,420cyclictest0-21swapper/220:52:458
39590639944223,417cyclictest0-21swapper/019:34:240
39590639944220,421cyclictest0-21swapper/023:09:450
39591169944123,417cyclictest0-21swapper/1320:04:465
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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