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2026-04-19 - 16:58
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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 rackeslot8.osadl.org (updated Sun Apr 19, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4130665992724,1cyclictest0-21swapper/312:24:593
4130665992416,6cyclictest403295-21sleep12:30:003
3221372240,3sleep134-21ksoftirqd/111:35:191
4130665992219,1cyclictest0-21swapper/309:20:023
413066599211,15cyclictest47340-21taskset08:30:233
3450202210,1sleep10-21swapper/111:50:181
413066599202,14cyclictest41689-21taskset08:28:033
413066599202,14cyclictest339293-21taskset11:45:233
4130665992017,1cyclictest0-21swapper/310:50:173
413066599201,15cyclictest208319-21taskset10:21:283
413066599192,13cyclictest4158315-21taskset07:27:373
4130665991916,1cyclictest0-21swapper/307:40:263
4130665991915,1cyclictest0-21swapper/311:30:293
413066599191,14cyclictest372306-21turbostat12:10:013
413066599191,14cyclictest3590-21chrt08:00:133
413066599191,14cyclictest228747-21taskset10:35:203
413066599191,14cyclictest155005-21taskset09:49:243
413066599191,14cyclictest131538-21taskset09:33:543
413066599191,13cyclictest22825-21chrt08:15:123
4130665991815,1cyclictest0-21swapper/312:00:003
4130665991815,1cyclictest0-21swapper/310:45:223
4130665991815,1cyclictest0-21swapper/310:25:183
4130665991815,1cyclictest0-21swapper/307:20:253
413066599181,14cyclictest333388-21taskset11:44:163
413066599181,13cyclictest99743-21taskset09:11:293
413066599181,13cyclictest73667-21taskset08:51:113
413066599181,13cyclictest4190141-21taskset07:50:273
413066599181,13cyclictest4183939-21taskset07:45:573
413066599181,13cyclictest4145657-21turbostat07:20:003
413066599181,13cyclictest410591-21taskset12:33:383
413066599181,13cyclictest381468-21taskset12:15:193
413066599181,13cyclictest378152-21taskset12:10:253
413066599181,13cyclictest35305-21taskset08:23:373
413066599181,13cyclictest347640-21taskset11:50:293
413066599181,13cyclictest301277-21taskset11:21:023
413066599181,13cyclictest285060-21taskset11:10:233
413066599181,13cyclictest266130-21taskset11:00:173
413066599181,13cyclictest233013-21taskset10:40:083
413066599181,13cyclictest20914-21taskset08:10:193
413066599181,13cyclictest200386-21taskset10:16:043
413066599181,13cyclictest169876-21taskset09:57:423
413066599181,12cyclictest306426-21chrt11:25:183
413066599172,12cyclictest325000-21taskset11:37:293
4130665991715,1cyclictest0-21swapper/310:10:003
4130665991714,1cyclictest0-21swapper/309:50:193
4130665991714,1cyclictest0-21swapper/308:05:203
4130665991713,1cyclictest0-21swapper/309:25:133
413066599171,13cyclictest4136833-21taskset07:12:333
413066599171,13cyclictest411390-21taskset12:35:083
413066599171,13cyclictest411390-21taskset12:35:073
413066599171,13cyclictest189468-21taskset10:10:183
413066599171,13cyclictest146224-21taskset09:41:243
413066599171,13cyclictest138482-21taskset09:36:293
413066599171,13cyclictest106512-21taskset09:15:213
413066599171,12cyclictest74225-21taskset08:55:053
413066599171,12cyclictest61392-21taskset08:45:113
413066599171,12cyclictest4190952-21taskset07:55:033
413066599171,12cyclictest4170504-21taskset07:35:223
413066599171,12cyclictest272088-21taskset11:05:153
413066599171,12cyclictest261866-21taskset10:55:253
413066599171,12cyclictest223511-21taskset10:30:343
413066599170,13cyclictest363311-21taskset12:01:163
1966332170,7sleep2196635-21kthreadcore10:15:182
413066599166,7cyclictest60842-21taskset08:41:253
4130665991613,1cyclictest0-21swapper/311:15:183
413066599161,12cyclictest48553-21taskset08:35:053
413066599161,12cyclictest4158793-21taskset07:30:023
413066599161,11cyclictest93275-21turbostat09:09:593
413066599160,12cyclictest86508-21taskset09:01:013
413066599160,12cyclictest170936-21taskset10:00:043
2559302165,5sleep2672-21dbus-daemon10:55:002
2384532151,11sleep1238486-21ntpq10:40:231
2076662151,2sleep10-21swapper/110:20:271
872832140,11sleep287415-21grep09:05:142
2705262141,9sleep0270532-21ssh11:01:560
2477162141,10sleep1247722-21ssh10:48:291
1841652141,10sleep2184200-21awk10:05:252
129998140,4rtkit-daemon216661-21ssh10:28:151
1006022141,9sleep2100608-21ssh09:14:012
41408552130,10sleep14142119-21tr07:15:171
3881892130,9sleep0388308-21diskstats12:20:130
3188562130,2sleep244-21ksoftirqd/211:35:162
2627322130,10sleep2262736-21ssh10:57:052
1762682131,9sleep2176317-21ld10:00:192
129998130,9rtkit-daemon223934-21ssh10:31:461
129998130,8rtkit-daemon380559-21ssh12:15:161
451012121,9sleep00-21swapper/008:30:220
41839632121,3sleep1222-21plymouthd07:46:161
41588432121,7sleep14158989-21df07:30:131
4114432121,7sleep1411440-21apt-get12:35:151
4114432121,7sleep1411440-21apt-get12:35:151
3560812121,8sleep2356087-21ssh11:57:472
3339262121,8sleep2333932-21ssh11:45:112
3288532120,9sleep2330590-21tr11:40:192
2245042121,1sleep00-21swapper/010:33:290
2150922121,8sleep0215137-21ntpq10:25:240
1666442127,2sleep00-21swapper/009:55:210
129998120,8rtkit-daemon253952-21ld10:50:251
129998120,8rtkit-daemon192820-21ssh10:11:330
129998120,8rtkit-daemon130626-21ssh09:31:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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