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2025-12-10 - 14:20
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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 the highest latencies:
System rackdslot3.osadl.org (updated Wed Dec 10, 2025 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270372208141,22sleep10-21swapper/119:08:201
137191204169,23phc2sys0-21swapper/319:06:023
268352202169,22sleep20-21swapper/219:05:522
268382201167,23sleep00-21swapper/019:05:540
136991810,1ptp4l391rcuc/320:15:333
136991810,1ptp4l391rcuc/320:15:323
27459997532,6cyclictest25-21ksoftirqd/123:20:001
272312660,3sleep10-21swapper/120:15:231
272312660,3sleep10-21swapper/120:15:231
27459996525,4cyclictest25-21ksoftirqd/121:50:271
27459996419,6cyclictest25-21ksoftirqd/122:14:591
27459996328,4cyclictest25-21ksoftirqd/121:30:011
27459996324,7cyclictest25-21ksoftirqd/120:00:161
27459996128,7cyclictest25-21ksoftirqd/122:20:241
27458996131,4cyclictest9-21ksoftirqd/000:30:140
27459996027,10cyclictest25-21ksoftirqd/100:25:021
27459996025,7cyclictest25-21ksoftirqd/123:20:271
27459996025,7cyclictest25-21ksoftirqd/123:20:261
27459996024,6cyclictest25-21ksoftirqd/120:55:001
27459996021,7cyclictest25-21ksoftirqd/122:00:181
27461995910,11cyclictest13843-21sed20:55:213
27459995927,6cyclictest25-21ksoftirqd/122:55:281
27459995927,4cyclictest25-21ksoftirqd/119:35:141
27459995925,6cyclictest25-21ksoftirqd/100:15:001
27458995928,4cyclictest9-21ksoftirqd/020:50:170
27459995821,7cyclictest25-21ksoftirqd/120:40:251
258932580,3sleep30-21swapper/322:25:273
27461995710,11cyclictest32057-21sed20:25:223
27459995726,4cyclictest25-21ksoftirqd/119:30:191
27459995725,4cyclictest25-21ksoftirqd/123:44:591
27459995720,9cyclictest25-21ksoftirqd/123:54:411
27459995720,9cyclictest25-21ksoftirqd/123:54:401
27459995720,7cyclictest25-21ksoftirqd/121:10:001
27458995728,3cyclictest9-21ksoftirqd/020:00:250
27458995727,4cyclictest9-21ksoftirqd/022:45:160
27459995628,9cyclictest25-21ksoftirqd/123:30:221
27459995628,3cyclictest25-21ksoftirqd/121:55:281
27459995627,8cyclictest25-21ksoftirqd/120:10:301
27459995626,3cyclictest25-21ksoftirqd/100:35:201
27459995618,9cyclictest25-21ksoftirqd/120:05:501
27458995628,4cyclictest9-21ksoftirqd/021:45:150
27458995627,4cyclictest9-21ksoftirqd/000:20:170
27458995624,4cyclictest9-21ksoftirqd/019:20:230
27459995525,9cyclictest25-21ksoftirqd/122:05:151
27459995525,4cyclictest25-21ksoftirqd/119:45:191
27459995524,9cyclictest25-21ksoftirqd/121:30:211
27459995522,4cyclictest25-21ksoftirqd/122:50:011
27459995520,4cyclictest25-21ksoftirqd/122:53:281
27459995516,9cyclictest25-21ksoftirqd/121:40:261
27458995526,3cyclictest9-21ksoftirqd/019:10:250
27458995525,4cyclictest9-21ksoftirqd/023:45:190
27458995524,3cyclictest9-21ksoftirqd/023:05:180
27459995419,6cyclictest25-21ksoftirqd/122:27:561
27459995418,7cyclictest25-21ksoftirqd/119:57:041
27459995418,4cyclictest25-21ksoftirqd/120:38:481
136991540,1ptp4l391rcuc/320:06:593
27459995325,8cyclictest25-21ksoftirqd/121:45:141
27459995319,8cyclictest25-21ksoftirqd/123:03:531
27459995318,8cyclictest25-21ksoftirqd/123:13:051
27459995316,7cyclictest25-21ksoftirqd/123:09:431
27458995328,3cyclictest9-21ksoftirqd/021:15:130
27458995328,3cyclictest9-21ksoftirqd/021:15:120
27458995327,4cyclictest9-21ksoftirqd/020:40:150
27458995327,3cyclictest9-21ksoftirqd/021:35:190
27458995326,4cyclictest9-21ksoftirqd/020:55:280
2745999528,8cyclictest25-21ksoftirqd/100:03:591
27459995217,8cyclictest25-21ksoftirqd/119:41:551
27459995216,6cyclictest25-21ksoftirqd/119:21:051
27459995211,6cyclictest25-21ksoftirqd/122:40:071
27458995225,4cyclictest9-21ksoftirqd/022:00:260
27458995221,3cyclictest9-21ksoftirqd/022:39:590
27458995221,3cyclictest9-21ksoftirqd/022:30:240
2746199510,10cyclictest27314-21/usr/sbin/munin21:25:183
27459995134,2cyclictest25-21ksoftirqd/122:35:221
27459995129,10cyclictest25-21ksoftirqd/100:20:001
27458995126,3cyclictest9-21ksoftirqd/022:55:160
27458995125,4cyclictest9-21ksoftirqd/020:20:260
27458995120,3cyclictest9-21ksoftirqd/019:40:240
251892510,3sleep10-21swapper/121:20:141
27461995045,3cyclictest28906-21cron22:35:013
27459995023,8cyclictest25-21ksoftirqd/119:15:161
27459995019,9cyclictest25-21ksoftirqd/121:37:371
27459995018,8cyclictest25-21ksoftirqd/120:45:101
27458995023,3cyclictest9-21ksoftirqd/020:34:590
197122500,2sleep10-21swapper/100:30:141
27459994918,4cyclictest25-21ksoftirqd/120:28:141
27459994917,7cyclictest25-21ksoftirqd/123:35:221
27459994917,4cyclictest25-21ksoftirqd/120:24:531
27459994917,4cyclictest25-21ksoftirqd/119:11:521
2745899496,5cyclictest9-21ksoftirqd/022:10:180
27458994920,4cyclictest9-21ksoftirqd/019:35:220
27458994917,5cyclictest9-21ksoftirqd/021:35:000
2746199480,16cyclictest30143-21latency22:35:243
2745999486,6cyclictest25-21ksoftirqd/123:25:481
2745999485,6cyclictest25-21ksoftirqd/121:10:491
2745999484,7cyclictest25-21ksoftirqd/100:20:211
27459994824,4cyclictest25-21ksoftirqd/123:45:141
2745999480,6cyclictest241ktimersoftd/119:50:161
27458994820,4cyclictest9-21ksoftirqd/021:00:260
27458994816,8cyclictest9-21ksoftirqd/022:20:260
2746199479,17cyclictest23930-21/usr/sbin/munin20:10:273
27458994719,4cyclictest9-21ksoftirqd/021:20:250
27458994718,3cyclictest9-21ksoftirqd/020:10:260
2746199469,7cyclictest14817-21diskstats19:50:153
2745999465,3cyclictest25-21ksoftirqd/100:05:231
27459994614,4cyclictest25-21ksoftirqd/120:30:191
27459994613,7cyclictest25-21ksoftirqd/121:01:081
27459994612,9cyclictest25-21ksoftirqd/121:00:011
27458994621,4cyclictest9-21ksoftirqd/021:05:210
27458994621,4cyclictest9-21ksoftirqd/000:35:160
27458994620,4cyclictest9-21ksoftirqd/019:30:010
27458994620,4cyclictest9-21ksoftirqd/000:10:350
27459994533,3cyclictest25-21ksoftirqd/122:15:131
27459994514,9cyclictest25-21ksoftirqd/119:25:321
27458994517,3cyclictest9-21ksoftirqd/020:05:260
27458994513,5cyclictest9-21ksoftirqd/020:15:310
27458994513,5cyclictest9-21ksoftirqd/020:15:310
136991450,0ptp4l401ktimersoftd/320:46:523
27458994435,3cyclictest9-21ksoftirqd/022:50:230
27458994431,4cyclictest9-21ksoftirqd/019:55:260
27458994430,5cyclictest9-21ksoftirqd/022:05:140
27458994430,4cyclictest9-21ksoftirqd/023:40:170
27458994416,5cyclictest9-21ksoftirqd/020:25:180
136991440,0ptp4l401ktimersoftd/321:00:173
27460994338,3cyclictest10720-21anacron23:02:522
2745899438,10cyclictest9-21ksoftirqd/019:50:140
2745899431,5cyclictest121rcu_preempt00:10:000
2745899431,3cyclictest121rcu_preempt19:50:000
27458994312,4cyclictest9-21ksoftirqd/022:15:190
2745999426,6cyclictest121rcu_preempt22:30:171
2745999422,2cyclictest121rcu_preempt21:15:251
2745999422,2cyclictest121rcu_preempt21:15:251
2745899424,3cyclictest121rcu_preempt19:30:270
27458994212,3cyclictest9-21ksoftirqd/022:25:280
2745899420,3cyclictest121rcu_preempt23:30:010
2745899420,3cyclictest121rcu_preempt21:50:150
2745899420,3cyclictest121rcu_preempt00:00:140
2745899420,2cyclictest121rcu_preempt20:35:160
136991420,0ptp4l401ktimersoftd/320:02:593
136991420,0ptp4l401ktimersoftd/300:34:423
2745999417,2cyclictest25-21ksoftirqd/123:57:381
2745899413,3cyclictest121rcu_preempt23:20:260
2745899413,3cyclictest121rcu_preempt23:20:260
27458994128,3cyclictest9-21ksoftirqd/023:05:010
2745899411,5cyclictest121rcu_preempt23:35:250
2745899411,2cyclictest121rcu_preempt23:55:300
2745899410,3cyclictest121rcu_preempt21:55:200
2745899410,2cyclictest121rcu_preempt00:15:240
136991410,0ptp4l401ktimersoftd/323:53:383
136991410,0ptp4l401ktimersoftd/323:53:373
59298400,9rtkit-daemon0-21swapper/221:26:562
2746199400,8cyclictest6315-21diskstats20:40:163
27458994031,2cyclictest9-21ksoftirqd/023:35:010
27458994026,4cyclictest9-21ksoftirqd/023:15:140
27458994026,4cyclictest9-21ksoftirqd/000:25:250
27458994025,4cyclictest9-21ksoftirqd/021:25:280
104352400,3sleep010440-21sh20:50:000
59298390,8rtkit-daemon0-21swapper/221:40:362
59298390,2rtkit-daemon0-21swapper/221:30:132
2746199393,7cyclictest27457-21cyclictest23:35:183
27461993922,5cyclictest41-21ksoftirqd/322:05:363
2746199390,7cyclictest8320-21meminfo19:35:213
2746199390,7cyclictest32668-21diskstats21:35:173
27460993933,4cyclictest33-21ksoftirqd/222:20:012
2745899394,2cyclictest121rcu_preempt21:10:230
27458993930,3cyclictest9-21ksoftirqd/022:44:590
27458993927,3cyclictest9-21ksoftirqd/021:40:250
27458993926,3cyclictest9-21ksoftirqd/019:15:210
2746199380,8cyclictest8364-21meminfo21:50:213
27458993825,6cyclictest9-21ksoftirqd/023:50:170
27458993825,6cyclictest9-21ksoftirqd/023:50:160
27458993825,3cyclictest9-21ksoftirqd/023:10:140
27460993730,4cyclictest9697-21cron00:10:002
27460993730,4cyclictest16837-21cron00:25:002
59298360,6rtkit-daemon0-21swapper/223:12:262
59298360,4rtkit-daemon41-21ksoftirqd/322:03:463
27461993630,4cyclictest41-21ksoftirqd/321:12:023
27461993611,12cyclictest3722-21latency_hist22:50:003
27460993630,4cyclictest33-21ksoftirqd/222:10:542
27460993630,4cyclictest33-21ksoftirqd/220:58:212
27460993630,4cyclictest33-21ksoftirqd/200:19:262
27461993529,4cyclictest41-21ksoftirqd/321:19:443
27461993529,4cyclictest41-21ksoftirqd/321:19:443
27461993529,4cyclictest41-21ksoftirqd/300:07:443
27460993529,4cyclictest33-21ksoftirqd/222:58:162
27460993529,4cyclictest33-21ksoftirqd/222:08:252
27460993529,4cyclictest33-21ksoftirqd/220:48:502
27460993527,5cyclictest33-21ksoftirqd/200:02:192
59298340,7rtkit-daemon0-21swapper/221:18:262
59298340,7rtkit-daemon0-21swapper/221:18:262
27461993428,4cyclictest41-21ksoftirqd/323:24:043
27461993428,4cyclictest41-21ksoftirqd/323:24:033
27461993428,4cyclictest41-21ksoftirqd/322:21:223
27461993428,4cyclictest41-21ksoftirqd/322:16:153
27461993427,4cyclictest41-21ksoftirqd/321:45:073
27461993411,9cyclictest16377-21tune2fs23:15:173
27460993429,3cyclictest33-21ksoftirqd/223:55:592
27460993428,4cyclictest33-21ksoftirqd/222:39:012
27460993428,4cyclictest33-21ksoftirqd/221:58:452
27460993428,4cyclictest33-21ksoftirqd/221:05:422
27460993428,4cyclictest33-21ksoftirqd/221:02:462
27460993428,4cyclictest33-21ksoftirqd/219:48:002
27460993428,4cyclictest33-21ksoftirqd/200:26:162
2746199337,15cyclictest20633-21/usr/sbin/munin23:25:243
27461993328,3cyclictest41-21ksoftirqd/319:18:423
27461993327,4cyclictest41-21ksoftirqd/323:33:423
27461993327,4cyclictest41-21ksoftirqd/322:40:073
27461993327,3cyclictest41-21ksoftirqd/323:44:463
27460993328,3cyclictest33-21ksoftirqd/223:42:132
27460993328,3cyclictest33-21ksoftirqd/220:42:042
27460993328,3cyclictest33-21ksoftirqd/220:20:472
27460993327,4cyclictest33-21ksoftirqd/222:42:142
27460993327,4cyclictest33-21ksoftirqd/222:28:192
27460993327,4cyclictest33-21ksoftirqd/219:29:472
27460993327,4cyclictest33-21ksoftirqd/219:22:252
27460993326,4cyclictest33-21ksoftirqd/219:31:272
27461993226,4cyclictest41-21ksoftirqd/322:57:073
27461993226,4cyclictest41-21ksoftirqd/322:54:553
27461993226,4cyclictest41-21ksoftirqd/321:22:493
27461993226,4cyclictest41-21ksoftirqd/320:22:313
27461993226,4cyclictest41-21ksoftirqd/319:44:483
27461993226,4cyclictest41-21ksoftirqd/319:33:213
27460993227,3cyclictest33-21ksoftirqd/223:52:412
27460993227,3cyclictest33-21ksoftirqd/223:52:412
27460993227,3cyclictest33-21ksoftirqd/220:19:492
27460993227,3cyclictest33-21ksoftirqd/220:19:492
27460993226,4cyclictest33-21ksoftirqd/223:27:162
27460993226,4cyclictest33-21ksoftirqd/222:52:502
27461993126,3cyclictest41-21ksoftirqd/320:51:543
27461993125,4cyclictest41-21ksoftirqd/321:33:473
27461993125,4cyclictest41-21ksoftirqd/321:08:533
27461993125,4cyclictest41-21ksoftirqd/300:25:063
27460993126,3cyclictest33-21ksoftirqd/223:09:412
27460993126,3cyclictest33-21ksoftirqd/222:23:392
27460993126,3cyclictest33-21ksoftirqd/220:38:582
27460993126,3cyclictest33-21ksoftirqd/219:43:092
27460993125,4cyclictest33-21ksoftirqd/221:39:532
27460993125,4cyclictest33-21ksoftirqd/221:22:482
2746199309,7cyclictest1285-21snmpd19:55:313
27461993025,3cyclictest41-21ksoftirqd/300:04:583
27461993024,4cyclictest41-21ksoftirqd/321:44:553
27461993024,4cyclictest41-21ksoftirqd/320:37:363
27461993024,4cyclictest41-21ksoftirqd/300:37:303
27461993023,4cyclictest41-21ksoftirqd/323:05:143
27460993025,3cyclictest33-21ksoftirqd/223:37:122
27460993025,3cyclictest33-21ksoftirqd/223:31:312
27460993025,3cyclictest33-21ksoftirqd/222:04:342
27460993025,3cyclictest33-21ksoftirqd/221:47:122
27460993024,4cyclictest33-21ksoftirqd/223:16:482
27460993024,4cyclictest33-21ksoftirqd/220:33:512
27460993024,4cyclictest33-21ksoftirqd/220:10:112
27460993024,4cyclictest33-21ksoftirqd/200:33:062
27461992924,3cyclictest41-21ksoftirqd/323:48:553
2746199290,16cyclictest32255-21apt-get19:20:123
27460992924,3cyclictest33-21ksoftirqd/222:48:222
27460992924,3cyclictest33-21ksoftirqd/219:35:512
27460992923,4cyclictest33-21ksoftirqd/221:52:172
27461992823,3cyclictest41-21ksoftirqd/323:55:593
27461992823,3cyclictest41-21ksoftirqd/323:11:543
27461992823,3cyclictest41-21ksoftirqd/321:56:363
27461992822,4cyclictest41-21ksoftirqd/300:23:343
27460992825,2cyclictest33-21ksoftirqd/200:35:272
27460992823,3cyclictest33-21ksoftirqd/219:16:472
27460992823,3cyclictest33-21ksoftirqd/219:12:032
27460992822,4cyclictest33-21ksoftirqd/220:51:232
27460992822,4cyclictest33-21ksoftirqd/220:09:302
27460992822,4cyclictest33-21ksoftirqd/200:10:372
27460992822,3cyclictest33-21ksoftirqd/220:00:042
27461992722,3cyclictest41-21ksoftirqd/319:30:013
27461992720,4cyclictest41-21ksoftirqd/300:10:333
27460992721,4cyclictest33-21ksoftirqd/222:30:062
27460992721,4cyclictest33-21ksoftirqd/221:12:322
27460992721,4cyclictest33-21ksoftirqd/219:52:012
27461992621,3cyclictest41-21ksoftirqd/319:10:523
27461992620,4cyclictest41-21ksoftirqd/320:34:033
27460992621,3cyclictest33-21ksoftirqd/220:25:452
27460992621,3cyclictest33-21ksoftirqd/219:57:402
27461992519,4cyclictest41-21ksoftirqd/322:12:583
27461992519,4cyclictest41-21ksoftirqd/300:19:203
27461992514,9cyclictest10472-21grep23:00:273
27460992520,3cyclictest33-21ksoftirqd/223:22:422
27460992520,3cyclictest33-21ksoftirqd/223:22:422
27461992414,8cyclictest14215-21grep19:50:003
27460992419,3cyclictest33-21ksoftirqd/223:45:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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