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2026-06-08 - 06:40
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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 all highest latencies:
System rackdslot4.osadl.org (updated Mon Jun 08, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205170,23phc2sys0-21swapper/319:08:503
46842202168,23sleep10-21swapper/119:08:551
46832202168,22sleep00-21swapper/019:08:540
46902201169,21sleep20-21swapper/219:09:002
1882121520,1sleep10-21swapper/123:55:211
138591133107,14phc2sys0-21swapper/319:10:013
5063996927,7cyclictest33-21ksoftirqd/221:11:432
5063996927,7cyclictest33-21ksoftirqd/221:11:432
5064996231,4cyclictest41-21ksoftirqd/322:35:163
5064996228,4cyclictest41-21ksoftirqd/300:25:013
5063996229,8cyclictest33-21ksoftirqd/222:40:002
5064996130,3cyclictest41-21ksoftirqd/320:25:003
5064996030,4cyclictest41-21ksoftirqd/321:10:243
5064996030,4cyclictest41-21ksoftirqd/321:10:243
5064996030,3cyclictest41-21ksoftirqd/322:40:143
5064996029,4cyclictest41-21ksoftirqd/320:55:273
5063996019,8cyclictest33-21ksoftirqd/221:30:272
5064995933,4cyclictest41-21ksoftirqd/323:35:233
5064995932,4cyclictest41-21ksoftirqd/321:20:223
5064995930,3cyclictest41-21ksoftirqd/322:45:273
5064995929,4cyclictest41-21ksoftirqd/320:30:243
5064995927,4cyclictest41-21ksoftirqd/321:30:003
5064995926,3cyclictest41-21ksoftirqd/321:55:013
5063995929,4cyclictest33-21ksoftirqd/220:35:202
5063995929,3cyclictest33-21ksoftirqd/223:10:232
232652590,2sleep10-21swapper/121:55:181
5064995828,4cyclictest41-21ksoftirqd/321:40:273
5064995828,4cyclictest41-21ksoftirqd/319:35:163
5064995825,6cyclictest41-21ksoftirqd/320:25:193
5064995824,7cyclictest41-21ksoftirqd/323:55:013
5064995824,7cyclictest41-21ksoftirqd/323:55:003
5063995833,10cyclictest33-21ksoftirqd/220:20:002
5063995820,4cyclictest33-21ksoftirqd/222:50:002
5063995820,4cyclictest33-21ksoftirqd/221:15:182
226762580,3sleep2506399cyclictest20:50:002
5064995728,3cyclictest41-21ksoftirqd/322:20:183
5064995727,4cyclictest41-21ksoftirqd/323:05:223
5064995727,4cyclictest41-21ksoftirqd/321:35:203
5064995726,4cyclictest41-21ksoftirqd/319:45:153
5064995725,4cyclictest41-21ksoftirqd/319:30:183
5064995724,4cyclictest41-21ksoftirqd/323:50:003
5063995729,4cyclictest33-21ksoftirqd/223:20:262
5063995729,4cyclictest33-21ksoftirqd/223:20:262
5064995629,3cyclictest41-21ksoftirqd/300:25:193
5064995628,3cyclictest41-21ksoftirqd/321:30:153
5064995627,3cyclictest41-21ksoftirqd/300:10:163
5063995625,9cyclictest33-21ksoftirqd/223:39:592
5063995623,9cyclictest33-21ksoftirqd/221:45:242
5063995620,4cyclictest33-21ksoftirqd/219:59:232
5064995528,3cyclictest41-21ksoftirqd/323:20:273
5064995528,3cyclictest41-21ksoftirqd/323:20:273
5064995526,4cyclictest41-21ksoftirqd/320:14:553
5064995526,4cyclictest41-21ksoftirqd/320:14:553
5064995525,3cyclictest41-21ksoftirqd/300:00:313
5063995527,3cyclictest33-21ksoftirqd/223:30:012
5063995527,3cyclictest33-21ksoftirqd/222:15:142
5063995526,4cyclictest33-21ksoftirqd/223:00:212
5063995526,4cyclictest33-21ksoftirqd/220:55:022
5063995523,10cyclictest33-21ksoftirqd/221:10:002
138491550,1ptp4l401ktimersoftd/319:24:363
113932550,3sleep111397-21missed_timers19:20:211
5064995427,3cyclictest41-21ksoftirqd/320:45:193
5064995425,3cyclictest41-21ksoftirqd/323:55:193
5064995424,4cyclictest41-21ksoftirqd/300:35:253
5064995424,3cyclictest41-21ksoftirqd/322:00:003
5064995423,4cyclictest41-21ksoftirqd/320:15:193
5064995421,4cyclictest41-21ksoftirqd/323:30:183
5064995421,4cyclictest41-21ksoftirqd/300:35:013
5064995418,4cyclictest41-21ksoftirqd/320:05:253
5063995421,9cyclictest33-21ksoftirqd/223:05:152
5063995419,4cyclictest33-21ksoftirqd/220:42:192
5063995419,4cyclictest33-21ksoftirqd/220:42:192
138491540,1ptp4l401ktimersoftd/323:04:243
5064995325,4cyclictest41-21ksoftirqd/319:27:003
5064995324,4cyclictest41-21ksoftirqd/321:15:143
5064995322,8cyclictest41-21ksoftirqd/323:20:003
5063995317,4cyclictest33-21ksoftirqd/200:00:302
5063995314,4cyclictest33-21ksoftirqd/221:35:232
138491530,1ptp4l401ktimersoftd/322:12:373
5064995222,4cyclictest41-21ksoftirqd/322:05:003
5064995222,4cyclictest41-21ksoftirqd/319:55:013
5064995222,3cyclictest41-21ksoftirqd/320:40:253
5064995222,3cyclictest41-21ksoftirqd/320:40:253
5064995216,4cyclictest41-21ksoftirqd/319:55:203
5063995215,8cyclictest33-21ksoftirqd/221:40:142
5063995215,7cyclictest33-21ksoftirqd/222:20:262
93172510,2sleep20-21swapper/219:15:252
5064995120,4cyclictest41-21ksoftirqd/322:30:233
5063995132,10cyclictest33-21ksoftirqd/219:35:172
5063995120,11cyclictest33-21ksoftirqd/221:00:002
5063995113,8cyclictest33-21ksoftirqd/220:02:282
5064995022,4cyclictest41-21ksoftirqd/300:15:143
5064995021,3cyclictest41-21ksoftirqd/320:00:153
5063995015,5cyclictest33-21ksoftirqd/223:55:292
5064994921,3cyclictest41-21ksoftirqd/323:25:143
5064994920,4cyclictest41-21ksoftirqd/321:45:243
5064994912,4cyclictest41-21ksoftirqd/320:39:303
5063994927,10cyclictest33-21ksoftirqd/222:50:172
5063994927,10cyclictest33-21ksoftirqd/222:50:172
5063994921,8cyclictest33-21ksoftirqd/200:07:322
5063994918,4cyclictest33-21ksoftirqd/223:30:142
5064994819,8cyclictest41-21ksoftirqd/322:05:223
5064994812,5cyclictest41-21ksoftirqd/323:11:213
5064994811,4cyclictest41-21ksoftirqd/322:54:533
5064994811,4cyclictest41-21ksoftirqd/322:54:523
5063994821,3cyclictest33-21ksoftirqd/221:20:342
5063994817,10cyclictest33-21ksoftirqd/200:10:262
5064994710,10cyclictest41-21ksoftirqd/322:15:573
5063994732,4cyclictest33-21ksoftirqd/219:10:242
5063994731,3cyclictest33-21ksoftirqd/200:15:132
5063994730,2cyclictest33-21ksoftirqd/220:20:162
5063994723,3cyclictest33-21ksoftirqd/222:55:172
5063994722,4cyclictest33-21ksoftirqd/220:09:562
506399471,2cyclictest121rcu_preempt21:50:122
5063994711,4cyclictest33-21ksoftirqd/222:25:242
5064994630,4cyclictest41-21ksoftirqd/322:25:173
5064994610,4cyclictest41-21ksoftirqd/323:41:023
5063994634,9cyclictest33-21ksoftirqd/219:35:012
5063994630,4cyclictest33-21ksoftirqd/222:40:142
5063994630,3cyclictest33-21ksoftirqd/221:25:242
5063994613,8cyclictest33-21ksoftirqd/219:45:212
287442460,2sleep00-21swapper/023:10:190
5064994529,4cyclictest41-21ksoftirqd/319:15:193
506399457,3cyclictest33-21ksoftirqd/221:55:232
506399455,3cyclictest33-21ksoftirqd/200:20:262
5063994532,4cyclictest33-21ksoftirqd/222:30:132
5063994526,9cyclictest33-21ksoftirqd/219:40:182
5063994524,9cyclictest33-21ksoftirqd/223:40:192
5063994518,4cyclictest33-21ksoftirqd/200:30:132
5064994429,4cyclictest41-21ksoftirqd/321:00:273
5064994429,4cyclictest41-21ksoftirqd/300:05:243
5063994430,4cyclictest33-21ksoftirqd/219:25:202
5063994429,2cyclictest33-21ksoftirqd/220:25:242
5063994424,2cyclictest33-21ksoftirqd/223:18:102
5064994328,4cyclictest41-21ksoftirqd/319:40:153
5063994333,2cyclictest33-21ksoftirqd/200:25:112
5063994328,3cyclictest33-21ksoftirqd/219:50:172
5063994324,4cyclictest33-21ksoftirqd/220:30:242
506399431,3cyclictest121rcu_preempt22:00:172
5064994228,4cyclictest41-21ksoftirqd/320:50:163
5064994227,4cyclictest41-21ksoftirqd/322:55:293
5063994225,5cyclictest33-21ksoftirqd/223:50:002
5063994224,10cyclictest33-21ksoftirqd/200:38:532
5063994211,8cyclictest33-21ksoftirqd/222:14:192
506199426,21cyclictest2315-21gnome-shell00:30:250
5063994130,4cyclictest33-21ksoftirqd/219:20:132
506399412,4cyclictest33-21ksoftirqd/221:05:002
5063994124,10cyclictest33-21ksoftirqd/223:50:242
5063994124,10cyclictest33-21ksoftirqd/223:50:242
506399410,2cyclictest121rcu_preempt20:10:122
506399410,2cyclictest121rcu_preempt20:10:122
506199417,21cyclictest24316-21switchtime19:45:240
17262410,2sleep10-21swapper/120:05:221
506499401,2cyclictest41-21ksoftirqd/321:05:123
5063994034,3cyclictest33-21ksoftirqd/222:05:222
506199409,18cyclictest1303-21runrttasks23:28:050
506299389,27cyclictest0-21swapper/100:38:021
5061993812,17cyclictest1303-21runrttasks23:09:210
506299379,26cyclictest0-21swapper/123:21:231
506299379,26cyclictest0-21swapper/123:21:231
5062993631,3cyclictest25-21ksoftirqd/123:35:041
5062993631,3cyclictest223-21systemd-journal20:24:551
5062993630,4cyclictest25-21ksoftirqd/122:06:101
5062993630,4cyclictest25-21ksoftirqd/122:03:531
5062993630,4cyclictest25-21ksoftirqd/121:22:251
5062993630,4cyclictest25-21ksoftirqd/120:17:301
5062993630,3cyclictest25-21ksoftirqd/122:55:001
5062993630,3cyclictest25-21ksoftirqd/122:55:001
5062993629,5cyclictest25-21ksoftirqd/122:41:281
5062993614,4cyclictest3916-21irqrtprio20:10:171
5062993614,4cyclictest3916-21irqrtprio20:10:171
5061993630,4cyclictest9-21ksoftirqd/023:58:580
5061993630,4cyclictest9-21ksoftirqd/022:30:400
5061993630,4cyclictest9-21ksoftirqd/021:58:460
5061993630,4cyclictest9-21ksoftirqd/020:41:160
5061993630,4cyclictest9-21ksoftirqd/020:41:160
506299356,27cyclictest0-21swapper/100:20:431
5062993529,4cyclictest25-21ksoftirqd/121:01:591
5062993529,4cyclictest25-21ksoftirqd/120:59:501
5062993529,4cyclictest25-21ksoftirqd/100:14:351
5062993528,4cyclictest25-21ksoftirqd/122:11:031
5062993513,4cyclictest5139-21sh21:20:001
5062993513,20cyclictest0-21swapper/119:36:531
5061993530,3cyclictest9-21ksoftirqd/020:05:110
5061993529,4cyclictest9-21ksoftirqd/023:00:370
5061993529,4cyclictest9-21ksoftirqd/022:28:190
5061993529,4cyclictest9-21ksoftirqd/022:06:170
5061993529,4cyclictest9-21ksoftirqd/022:04:440
5061993529,4cyclictest9-21ksoftirqd/021:50:280
5061993529,4cyclictest9-21ksoftirqd/020:47:500
5061993529,4cyclictest9-21ksoftirqd/020:34:420
5061993529,4cyclictest9-21ksoftirqd/019:15:550
5062993429,3cyclictest25-21ksoftirqd/119:56:371
5062993428,4cyclictest25-21ksoftirqd/123:52:011
5062993428,4cyclictest25-21ksoftirqd/123:52:001
5062993428,4cyclictest25-21ksoftirqd/120:49:391
5062993428,4cyclictest25-21ksoftirqd/120:04:471
5062993428,4cyclictest25-21ksoftirqd/100:30:401
5062993428,4cyclictest25-21ksoftirqd/100:04:161
5061993429,3cyclictest9-21ksoftirqd/021:00:000
5061993428,4cyclictest9-21ksoftirqd/022:38:020
5061993428,4cyclictest9-21ksoftirqd/000:17:380
5061993428,4cyclictest9-21ksoftirqd/000:07:160
5061993421,4cyclictest9-21ksoftirqd/019:30:110
5061993416,15cyclictest672-21gdbus19:55:240
5061993411,20cyclictest223-21systemd-journal20:05:000
506299332,8cyclictest17971-21chrt20:40:131
506299332,8cyclictest17971-21chrt20:40:121
5062993328,3cyclictest25-21ksoftirqd/122:26:271
5062993327,4cyclictest25-21ksoftirqd/122:19:381
5062993327,4cyclictest25-21ksoftirqd/120:31:141
5061993328,3cyclictest9-21ksoftirqd/023:43:560
5061993328,3cyclictest9-21ksoftirqd/022:40:140
5061993328,3cyclictest9-21ksoftirqd/020:10:590
5061993328,3cyclictest9-21ksoftirqd/020:10:590
5061993327,4cyclictest9-21ksoftirqd/021:09:200
5061993327,4cyclictest9-21ksoftirqd/021:02:300
5061993327,4cyclictest9-21ksoftirqd/020:22:300
5061993327,4cyclictest9-21ksoftirqd/020:18:170
5061993327,4cyclictest9-21ksoftirqd/000:37:090
5061993327,4cyclictest9-21ksoftirqd/000:04:150
5062993227,3cyclictest25-21ksoftirqd/121:46:241
5062993227,3cyclictest25-21ksoftirqd/119:10:081
5062993226,4cyclictest25-21ksoftirqd/122:59:481
5062993226,4cyclictest25-21ksoftirqd/100:19:571
5061993227,3cyclictest9-21ksoftirqd/021:14:210
5061993227,3cyclictest9-21ksoftirqd/021:14:210
5061993227,3cyclictest9-21ksoftirqd/020:52:350
5061993227,3cyclictest9-21ksoftirqd/020:27:190
5061993227,3cyclictest9-21ksoftirqd/019:50:100
5061993227,3cyclictest9-21ksoftirqd/019:20:380
5061993226,4cyclictest9-21ksoftirqd/023:15:370
5061993226,4cyclictest9-21ksoftirqd/022:18:350
5061993226,4cyclictest9-21ksoftirqd/022:12:010
5061993226,4cyclictest9-21ksoftirqd/021:15:380
5061993210,20cyclictest3090-21cat22:20:130
5061993210,19cyclictest8141-21expr23:35:130
5062993125,4cyclictest25-21ksoftirqd/123:04:351
5062993125,4cyclictest25-21ksoftirqd/122:47:371
5062993125,4cyclictest25-21ksoftirqd/100:07:491
5062993124,4cyclictest25-21ksoftirqd/122:21:541
5061993126,3cyclictest9-21ksoftirqd/022:50:110
5061993126,3cyclictest9-21ksoftirqd/022:50:110
5061993126,3cyclictest9-21ksoftirqd/019:27:220
5061993126,3cyclictest9-21ksoftirqd/000:23:180
5061993125,4cyclictest9-21ksoftirqd/021:41:050
5061993125,4cyclictest9-21ksoftirqd/021:32:030
5061993125,4cyclictest9-21ksoftirqd/021:29:060
5061993125,4cyclictest9-21ksoftirqd/021:21:320
5061993110,19cyclictest25695-21expr00:10:140
5061993110,18cyclictest7753-21cut23:35:010
506199310,3cyclictest13494-21/usr/sbin/munin23:45:160
5062993025,3cyclictest25-21ksoftirqd/122:36:411
5062993025,3cyclictest25-21ksoftirqd/121:11:261
5062993025,3cyclictest25-21ksoftirqd/121:11:261
5062993025,3cyclictest25-21ksoftirqd/119:48:331
5062993025,3cyclictest25-21ksoftirqd/119:28:541
5062993024,4cyclictest25-21ksoftirqd/123:48:321
5062993024,4cyclictest25-21ksoftirqd/122:30:411
5061993025,3cyclictest9-21ksoftirqd/019:35:130
5061993025,3cyclictest9-21ksoftirqd/019:13:020
5061993024,4cyclictest9-21ksoftirqd/023:52:360
5061993024,4cyclictest9-21ksoftirqd/023:52:360
5061993024,4cyclictest9-21ksoftirqd/022:47:290
5062992924,3cyclictest25-21ksoftirqd/120:50:101
5062992924,3cyclictest25-21ksoftirqd/119:50:091
5062992924,3cyclictest25-21ksoftirqd/100:26:141
5062992923,4cyclictest25-21ksoftirqd/119:33:051
5062992817,10cyclictest25-21ksoftirqd/121:30:121
506199280,3cyclictest18773-21memory21:45:200
5062992722,3cyclictest25-21ksoftirqd/123:13:591
5062992722,3cyclictest25-21ksoftirqd/121:28:421
5062992721,4cyclictest25-21ksoftirqd/123:19:501
506199279,16cyclictest1303-21runrttasks20:38:370
5061992721,4cyclictest9-21ksoftirqd/019:43:150
5062992622,3cyclictest25-21ksoftirqd/121:50:181
5062992621,3cyclictest25-21ksoftirqd/120:35:021
5062992620,4cyclictest25-21ksoftirqd/121:41:021
5062992620,4cyclictest25-21ksoftirqd/119:18:481
5061992621,3cyclictest9-21ksoftirqd/022:58:110
5061992610,14cyclictest775-21cstates00:25:130
5062992520,3cyclictest25-21ksoftirqd/123:33:311
5062992520,3cyclictest25-21ksoftirqd/121:05:451
5062992519,4cyclictest25-21ksoftirqd/120:27:251
5062992418,3cyclictest25-21ksoftirqd/123:05:111
506199241,4cyclictest1058-21/usr/sbin/munin23:20:180
506199241,4cyclictest1058-21/usr/sbin/munin23:20:180
5062992317,4cyclictest25-21ksoftirqd/123:40:131
506199231,4cyclictest13181-21sed21:35:140
5062992217,3cyclictest25-21ksoftirqd/121:38:501
5062992015,3cyclictest25-21ksoftirqd/123:25:081
5062991914,3cyclictest25-21ksoftirqd/119:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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