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2026-04-12 - 21:31
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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 Sun Apr 12, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4369221240,1sleep1321rcuc/110:20:181
3975172992825,1cyclictest0-21swapper/309:20:013
3975172992825,1cyclictest0-21swapper/307:15:013
3975172992421,1cyclictest0-21swapper/309:25:253
3975172992421,1cyclictest0-21swapper/307:20:153
3975172992320,1cyclictest0-21swapper/312:20:013
3975172992320,1cyclictest0-21swapper/308:40:013
41487152210,1sleep10-21swapper/109:20:161
397517299212,15cyclictest14739-21taskset10:00:113
3975172992118,1cyclictest0-21swapper/312:05:003
3975172992117,2cyclictest0-21swapper/312:25:193
3975172992017,1cyclictest0-21swapper/311:20:013
3975172992017,1cyclictest0-21swapper/311:10:163
3975172992017,1cyclictest0-21swapper/309:10:173
3975172992017,1cyclictest0-21swapper/308:45:163
3975172992017,1cyclictest0-21swapper/308:22:163
397517299201,14cyclictest95409-21taskset11:00:023
397517299201,14cyclictest39343-21chrt10:15:243
397517299201,14cyclictest131048-21chrt11:25:113
397517299192,13cyclictest172698-21taskset11:52:173
3975172991916,1cyclictest0-21swapper/312:15:003
397517299191,14cyclictest93571-21taskset10:55:203
397517299191,14cyclictest4049851-21taskset08:05:183
397517299191,14cyclictest4027813-21chrt07:45:223
397517299191,14cyclictest3078-21taskset09:50:173
397517299191,14cyclictest151823-21taskset11:39:103
397517299191,14cyclictest102586-21taskset11:05:103
397517299191,13cyclictest4131486-21taskset09:09:563
397517299191,13cyclictest14374-21taskset09:59:553
397517299190,14cyclictest3990189-21taskset07:19:553
397517299182,12cyclictest214921-21taskset12:20:393
3975172991815,1cyclictest0-21swapper/307:50:183
3975172991815,1cyclictest0-21swapper/307:35:013
397517299181,14cyclictest4154625-21taskset09:24:393
397517299181,13cyclictest59421-21taskset10:33:113
397517299181,13cyclictest4184781-21taskset09:42:073
397517299181,13cyclictest4124723-21taskset09:00:313
397517299181,13cyclictest4099356-21chrt08:44:193
397517299181,13cyclictest40475-21taskset10:20:083
397517299181,13cyclictest4015880-21taskset07:39:563
397517299181,13cyclictest4003025-21taskset07:29:413
397517299181,13cyclictest232153-21taskset12:35:193
397517299181,13cyclictest194080-21taskset12:07:453
397517299181,12cyclictest4060838-21taskset08:14:563
397517299178,6cyclictest40406492sleep307:55:213
397517299176,8cyclictest4067312-21turbostat08:20:003
3975172991714,1cyclictest0-21swapper/311:45:003
3975172991714,1cyclictest0-21swapper/310:05:143
3975172991714,1cyclictest0-21swapper/310:05:133
3975172991714,1cyclictest0-21swapper/308:25:153
397517299171,13cyclictest66670-21taskset10:39:373
397517299171,13cyclictest4186111-21chrt09:45:133
397517299171,13cyclictest4177671-21taskset09:39:083
397517299171,13cyclictest4022007-21taskset07:40:403
397517299171,13cyclictest229381-21taskset12:31:343
397517299171,13cyclictest165555-21taskset11:46:523
397517299171,12cyclictest87544-21taskset10:52:353
397517299171,12cyclictest52804-21taskset10:26:303
397517299171,12cyclictest4080432-21taskset08:30:083
397517299171,12cyclictest4041940-21taskset08:00:123
397517299171,12cyclictest33442-21taskset10:11:103
397517299170,13cyclictest79156-21chrt10:45:183
397517299170,13cyclictest72954-21taskset10:40:333
397517299170,13cyclictest176054-21chrt11:55:193
397517299161,12cyclictest4118451-21taskset08:57:013
397517299161,12cyclictest4106089-21taskset08:50:043
397517299161,12cyclictest143980-21taskset11:30:323
397517299161,12cyclictest123902-21taskset11:20:113
397517299161,11cyclictest4164839-21chrt09:30:173
39688912150,2sleep30-21swapper/307:05:053
40862702142,8sleep1222-21plymouthd08:30:591
2000642141,4sleep1200107-21ntpq12:10:201
535702131,9sleep253638-21/usr/sbin/munin10:30:142
41623002130,9sleep14162308-21ssh09:29:201
41396292131,9sleep24139624-21apt-get09:15:142
39918872138,3sleep03992944-21kthreadcore07:20:170
39841922131,8sleep10-21swapper/107:15:131
886942121,8sleep188824-21/usr/sbin/munin10:55:151
41253812120,3sleep1222-21plymouthd09:05:151
40084912120,8sleep14008532-21ntpq07:30:211
39929462120,3sleep1321rcuc/107:20:171
129998120,8rtkit-daemon4192369-21ssh09:46:410
129998120,4rtkit-daemon703-21mta-sts-daemon10:46:251
129998120,3rtkit-daemon222-21plymouthd12:29:270
41860632112,5sleep14186098-21apt-get09:45:111
41090922111,7sleep14110993-21kthreadcore08:50:181
41014922116,2sleep24103240-21grep08:45:182
40294952111,7sleep04030378-21irqrtprio07:50:160
2360832110,4sleep0236272-21users12:35:290
1535142111,2sleep10-21swapper/111:40:171
1433472111,7sleep1143383-21ntpq11:30:191
129998110,8rtkit-daemon151588-21ssh11:38:042
129998110,6rtkit-daemon2195379-21ntpd11:08:052
129998110,3rtkit-daemon222-21plymouthd09:03:070
936152100,2sleep093664-21ntp_states10:55:220
814772100,7sleep281660-21sed10:50:162
805772100,7sleep280579-21ssh10:48:022
39689352101,4sleep20-21swapper/207:05:122
328042101,6sleep132843-21ntpq10:10:211
1808992101,6sleep10-21swapper/112:00:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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