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2026-07-20 - 16:37
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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
Characteristics of the 792 highest latencies:
System rack6slot5.osadl.org (updated Mon Jul 20, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2510299100885212,4865cyclictest10639-21kworker/0:207:16:040
251029998715190,4667cyclictest1976-21kworker/0:107:55:530
251029997675161,4602cyclictest1976-21kworker/0:108:02:300
251029996864987,4648cyclictest1976-21kworker/0:108:41:280
251029990874508,4556cyclictest6568-21kworker/0:110:20:010
251029989394558,4370cyclictest10639-21kworker/0:207:28:020
251029988674378,4476cyclictest1976-21kworker/0:107:47:200
251029987584327,4389cyclictest1976-21kworker/0:107:53:070
251029986714494,4167cyclictest1701-21kworker/0:008:57:330
251029985864383,4193cyclictest1976-21kworker/0:107:32:470
251029984844199,4235cyclictest1976-21kworker/0:108:13:530
251029982624396,3853cyclictest10639-21kworker/0:207:14:180
251029978793893,3944cyclictest3947-21kworker/0:109:03:140
251029977454218,3477cyclictest1976-21kworker/0:107:36:360
251029977324109,3609cyclictest31199-21kworker/0:010:02:380
251029973853741,3594cyclictest3947-21kworker/0:109:09:350
251029972913903,3374cyclictest18835-21kworker/0:009:50:120
251029972763882,3344cyclictest1976-21kworker/0:108:48:250
251029972633895,3354cyclictest13221-21kworker/0:210:42:030
251029971253830,3282cyclictest10639-21kworker/0:207:22:090
251029970003863,3115cyclictest3947-21kworker/0:109:25:300
251029969683725,3192cyclictest1976-21kworker/0:108:34:140
251029968513719,3128cyclictest1976-21kworker/0:108:35:490
251029967353676,3018cyclictest18835-21kworker/0:009:37:370
251029967223620,3089cyclictest1976-21kworker/0:108:27:430
251029966523620,3021cyclictest1976-21kworker/0:108:08:540
251029966503576,3061cyclictest1976-21kworker/0:107:41:500
251029965543536,3005cyclictest1976-21kworker/0:108:20:480
251029963963440,2914cyclictest13221-21kworker/0:210:39:150
251029961733380,2789cyclictest1976-21kworker/0:108:50:010
251029945952387,2198cyclictest1976-21kworker/0:108:15:270
244692782185,204sleep00-21swapper07:05:550
251029950135,453cyclictest0-21swapper10:32:200
251029949034,442cyclictest5189-21munin-node11:20:460
251029948834,440cyclictest19554-21ssh11:53:180
251029948832,442cyclictest12-21rcu_preempt10:24:020
251029948734,439cyclictest29335-21ssh11:01:390
251029948733,440cyclictest6207-21diskmemload11:42:410
251029948733,440cyclictest24388-21ssh09:43:460
251029948733,440cyclictest17539-21ssh11:49:180
251029948634,438cyclictest6207-21diskmemload11:34:280
251029948633,439cyclictest6207-21diskmemload12:30:090
251029948533,439cyclictest32478-21ssh12:21:310
251029948533,438cyclictest6207-21diskmemload09:48:020
251029948532,440cyclictest3948-21ssh11:18:200
251029948531,440cyclictest6207-21diskmemload09:30:270
251029947431,430cyclictest6207-21diskmemload12:01:370
251029946432,372cyclictest12-21rcu_preempt12:19:390
251029944131,350cyclictest28240-21ssh12:12:170
251029943453,320cyclictest7027-21expr11:25:290
251029942951,319cyclictest6207-21diskmemload12:29:250
251029942253,308cyclictest21858-21sendmail-mta11:58:450
251029941853,305cyclictest26696-21python10:56:100
251029941755,348cyclictest6207-21diskmemload12:36:020
251029941753,303cyclictest24259-21ssh10:50:500
251029941650,352cyclictest25963-21ssh12:07:000
251029941456,346cyclictest30201-21awk09:55:360
251029940874,321cyclictest4305-21snmpd11:35:580
251029940720,374cyclictest4285-21lldpd10:27:550
251029940654,293cyclictest6207-21diskmemload10:47:160
251029940633,359cyclictest5945-21ssh10:11:440
251029940432,358cyclictest3829-21ssh10:07:300
251029940353,168cyclictest31927-21kworker/u2:211:11:130
251029938953,156cyclictest6207-21diskmemload11:08:120
251029927726,59cyclictest0-21swapper09:21:450
251029926523,214cyclictest4924-21runrttasks09:17:110
251029922429,180cyclictest6300-21ssh09:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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