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2026-06-22 - 08:31
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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 Mon Jun 22, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4160242320,1sleep10-21swapper/119:25:261
388719992724,1cyclictest0-21swapper/323:05:173
388719992724,1cyclictest0-21swapper/321:40:083
388719992623,1cyclictest0-21swapper/319:15:273
388719992523,1cyclictest0-21swapper/300:35:003
388719992523,0cyclictest0-21swapper/323:40:003
388719992320,1cyclictest0-21swapper/323:35:003
38871999223,14cyclictest486774-21taskset20:23:133
388719992219,1cyclictest0-21swapper/323:20:123
388719992219,1cyclictest0-21swapper/319:30:013
38871999221,17cyclictest472177-21taskset20:10:193
388719992118,1cyclictest0-21swapper/322:58:403
388719992118,1cyclictest0-21swapper/321:40:003
388719992118,1cyclictest0-21swapper/320:05:143
38871999211,15cyclictest394895-21taskset19:12:423
388719992017,1cyclictest0-21swapper/323:25:143
388719992017,1cyclictest0-21swapper/322:00:253
388719992017,1cyclictest0-21swapper/321:50:173
388719992017,1cyclictest0-21swapper/320:00:123
38871999201,15cyclictest698533-21turbostat22:50:003
38871999201,14cyclictest837366-21turbostat00:20:003
38871999200,16cyclictest775826-21taskset23:40:073
38871999200,10cyclictest666906-21taskset22:28:063
38871999199,1cyclictest0-21swapper/321:08:133
38871999198,1cyclictest0-21swapper/321:00:113
38871999198,1cyclictest0-21swapper/300:25:193
38871999197,1cyclictest0-21swapper/319:52:433
388719991917,1cyclictest0-21swapper/300:00:183
388719991916,1cyclictest0-21swapper/322:30:273
388719991916,1cyclictest0-21swapper/322:20:123
388719991916,1cyclictest0-21swapper/320:40:093
38871999191,15cyclictest6752992sleep322:35:013
38871999191,14cyclictest744618-21taskset23:19:463
38871999191,14cyclictest642411-21chrt22:10:223
38871999191,14cyclictest642411-21chrt22:10:223
38871999191,14cyclictest567323-21taskset21:23:553
38871999191,14cyclictest452897-21taskset19:55:193
38871999191,14cyclictest429563-21taskset19:40:043
38871999191,14cyclictest419931-21taskset19:30:183
38871999191,13cyclictest798751-21turbostat23:55:003
38871999191,13cyclictest736897-21taskset23:14:413
38871999191,13cyclictest689621-21chrt22:41:293
38871999191,13cyclictest598655-21chrt21:45:123
388719991910,6cyclictest0-21swapper/300:24:293
388719991910,0cyclictest0-21swapper/319:21:123
38871999189,1cyclictest0-21swapper/323:57:483
38871999189,1cyclictest0-21swapper/320:38:243
38871999189,1cyclictest0-21swapper/320:33:103
388719991815,1cyclictest0-21swapper/322:55:013
388719991815,1cyclictest0-21swapper/322:20:013
388719991815,1cyclictest0-21swapper/320:55:133
38871999181,13cyclictest866900-21taskset00:36:123
38871999181,13cyclictest814880-21taskset00:05:173
38871999181,13cyclictest635875-21taskset22:07:173
38871999181,13cyclictest620518-21taskset21:57:273
38871999181,13cyclictest575611-21taskset21:30:093
38871999181,13cyclictest558716-21taskset21:16:303
38871999181,13cyclictest442077-21turbostat19:50:003
388719991810,1cyclictest0-21swapper/321:12:083
38871999172,11cyclictest524429-21taskset20:50:243
388719991713,2cyclictest0-21swapper/320:25:203
38871999171,13cyclictest824238-21taskset00:10:183
38871999171,13cyclictest720167-21taskset23:00:383
38871999171,13cyclictest567991-21taskset21:25:043
38871999171,13cyclictest518569-21taskset20:45:513
38871999170,12cyclictest474442-21chrt20:15:123
4873702161,5sleep1487415-21/usr/sbin/munin20:25:171
38871999161,11cyclictest789515-21taskset23:45:323
8439512153,4sleep00-21swapper/000:21:390
388719991513,1cyclictest0-21swapper/319:35:203
8362592140,6sleep1836265-21ssh00:16:471
8663442131,9sleep0866545-21cat00:35:260
8583342131,9sleep1858373-21ssh00:30:221
7357032130,10sleep1735707-21ssh23:10:591
7205042131,4sleep1720510-21ssh23:01:411
51806921310,1sleep20-21swapper/220:45:222
4684772130,10sleep0469378-21irqrtprio20:10:170
4604182131,8sleep0460462-21ntpq20:00:220
7043832121,8sleep20-21swapper/222:50:272
6598722120,9sleep1659947-21sort22:25:011
5739402121,8sleep2222-21plymouthd21:25:402
4460222120,9sleep0447384-21load19:50:200
8067142111,8sleep00-21swapper/000:00:060
7655852110,4sleep2765729-21awk23:30:212
7370102111,7sleep2737265-21latency_hist23:15:012
6601942112,5sleep0222-21plymouthd22:25:120
6368042110,2sleep0222-21plymouthd22:10:000
6039232110,8sleep1603966-21ntp_states21:45:231
5920342110,8sleep1592957-21cut21:40:181
5680032110,8sleep1568007-21ssh21:25:111
5513882111,3sleep1222-21plymouthd21:12:361
4613572111,7sleep1461374-21latency_hist20:05:001
8527702101,6sleep0852786-21latency_hist00:30:010
7987252100,3sleep0798975-21latency_hist23:55:010
7910102101,6sleep1791028-21latency_hist23:50:001
7660432101,2sleep00-21swapper/023:30:270
7600142100,1sleep10-21swapper/123:29:401
6915432101,6sleep0692168-21irqrtprio22:45:160
6734652100,7sleep2673599-21sed22:30:272
6547072100,8sleep0656355-21cut22:20:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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