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2026-06-08 - 11:24
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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 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5931682480,1sleep0221rcuc/023:05:180
256548993027,1cyclictest0-21swapper/321:20:013
256548992522,1cyclictest0-21swapper/319:40:013
256548992420,1cyclictest0-21swapper/323:00:073
256548992320,1cyclictest0-21swapper/323:20:013
256548992219,1cyclictest0-21swapper/322:30:243
256548992216,3cyclictest599255-21sleep23:10:003
25654899221,15cyclictest669324-21taskset23:55:003
256548992119,1cyclictest0-21swapper/322:40:013
256548992119,1cyclictest0-21swapper/320:20:013
256548992118,1cyclictest0-21swapper/322:00:013
256548992111,7cyclictest6380482sleep323:35:013
25654899211,16cyclictest723680-21chrt00:30:133
256548992017,1cyclictest0-21swapper/321:40:083
256548992017,1cyclictest0-21swapper/321:20:263
25654899201,14cyclictest504746-21taskset22:05:433
25654899201,14cyclictest380844-21turbostat20:45:003
256548991917,0cyclictest0-21swapper/300:05:193
256548991916,1cyclictest0-21swapper/323:40:103
256548991916,1cyclictest0-21swapper/322:50:173
256548991916,1cyclictest0-21swapper/321:10:123
256548991916,1cyclictest0-21swapper/300:20:053
256548991916,1cyclictest0-21swapper/300:20:053
256548991916,1cyclictest0-21swapper/300:00:093
25654899191,14cyclictest700339-21taskset00:15:003
25654899191,14cyclictest621814-21taskset23:22:363
25654899191,14cyclictest381134-21chrt20:45:133
25654899191,14cyclictest354919-21chrt20:22:313
25654899191,14cyclictest328503-21chrt20:00:263
25654899191,14cyclictest270405-21taskset19:15:203
25654899191,13cyclictest622848-21taskset23:25:013
25654899191,13cyclictest459740-21taskset21:40:013
25654899191,13cyclictest406774-21taskset21:05:003
25654899191,13cyclictest361828-21chrt20:30:133
6786182180,8sleep1679079-21kthreadcore00:00:211
25654899182,12cyclictest535834-21taskset22:26:043
256548991815,1cyclictest0-21swapper/321:32:043
25654899181,14cyclictest443211-21taskset21:27:423
25654899181,13cyclictest699326-21taskset00:12:483
25654899181,13cyclictest639482-21taskset23:35:163
25654899181,13cyclictest582306-21taskset22:55:393
25654899181,13cyclictest559271-21taskset22:41:153
25654899181,13cyclictest559271-21taskset22:41:153
25654899181,13cyclictest497264-21taskset22:01:453
25654899181,13cyclictest481239-21taskset21:50:283
25654899181,13cyclictest406256-21taskset21:01:483
25654899181,13cyclictest399831-21taskset20:56:513
25654899181,13cyclictest399831-21taskset20:56:513
25654899181,13cyclictest393350-21taskset20:51:143
25654899181,13cyclictest330024-21taskset20:05:143
25654899181,13cyclictest262888-21taskset19:14:563
6926842171,4sleep0692747-21sort00:10:140
6633942171,12sleep1665010-21grep23:50:181
256548991715,1cyclictest0-21swapper/319:25:193
256548991714,1cyclictest0-21swapper/323:45:193
256548991714,1cyclictest0-21swapper/322:20:073
256548991714,1cyclictest0-21swapper/320:35:193
256548991714,1cyclictest0-21swapper/319:45:183
25654899171,13cyclictest737618-21taskset00:36:263
25654899171,13cyclictest605204-21taskset23:10:253
25654899171,13cyclictest567682-21taskset22:48:133
25654899171,13cyclictest520122-21taskset22:15:293
25654899171,13cyclictest467559-21taskset21:45:023
25654899171,13cyclictest361383-21taskset20:28:133
25654899171,13cyclictest290722-21taskset19:33:563
25654899171,12cyclictest322598-21taskset19:55:283
25654899171,12cyclictest316426-21taskset19:53:493
25654899171,12cyclictest271776-21chrt19:20:133
6704782164,9sleep0671377-21kthreadcore23:55:180
3424662161,8sleep0342483-21basename20:15:120
256548991613,1cyclictest0-21swapper/300:25:233
25654899161,12cyclictest676423-21taskset23:58:533
25654899161,12cyclictest341505-21taskset20:10:253
25654899161,12cyclictest303355-21taskset19:40:503
25654899161,11cyclictest512384-21taskset22:10:313
7304622131,9sleep1730468-21ssh00:33:161
6825322131,9sleep0682569-21/usr/sbin/munin00:00:280
6610802131,9sleep2661084-21ssh23:49:152
6306062131,9sleep2630611-21/usr/sbin/munin23:30:112
6981962121,8sleep1698321-21sed00:10:271
6790822121,7sleep2680811-21kthreadcore00:00:222
6371692121,4sleep1637175-21ssh23:32:221
5243822120,8sleep2526062-21grep22:20:182
5196222120,9sleep2519727-21mailstats22:15:252
4959772121,8sleep1490919-21/usr/sbin/munin22:00:211
4266292120,8sleep2421029-21/usr/sbin/munin21:15:272
3872142120,8sleep1387235-21latency_hist20:50:011
6291702110,1sleep10-21swapper/123:26:371
5406332111,7sleep1542477-21cut22:30:201
5374612111,2sleep20-21swapper/222:30:132
5001402110,2sleep20-21swapper/222:05:192
4977672110,3sleep2497773-21ssh22:03:192
4745592110,8sleep0474565-21ssh21:48:330
7377072101,6sleep2737711-21ssh00:36:422
6763152100,2sleep10-21swapper/123:58:281
5855072100,7sleep0586690-21cut23:00:180
5297592101,5sleep0529762-21apt-get22:25:130
5136332100,3sleep1222-21plymouthd22:14:201
4905762100,6sleep1490606-21munin-run22:00:011
4523302100,1sleep20-21swapper/221:35:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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