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2025-11-07 - 10:06
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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 rackdslot4.osadl.org (updated Fri Nov 07, 2025 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94512214150,52sleep00-21swapper/019:08:590
93252212177,23sleep30-21swapper/319:07:213
92692202168,23sleep10-21swapper/119:06:471
95162199166,22sleep20-21swapper/219:09:492
272852720,1sleep00-21swapper/000:05:140
9823996527,7cyclictest9-21ksoftirqd/021:20:140
9823996326,4cyclictest9-21ksoftirqd/021:00:000
9823996225,5cyclictest9-21ksoftirqd/019:30:170
9823996224,6cyclictest9-21ksoftirqd/021:05:240
9823996223,6cyclictest9-21ksoftirqd/000:00:190
9823996223,5cyclictest9-21ksoftirqd/020:10:150
9823996222,7cyclictest9-21ksoftirqd/022:15:180
9823996130,6cyclictest9-21ksoftirqd/022:20:270
9823996130,6cyclictest9-21ksoftirqd/022:20:270
9823996129,6cyclictest9-21ksoftirqd/022:40:000
9823996127,6cyclictest9-21ksoftirqd/000:35:150
9823996124,5cyclictest9-21ksoftirqd/020:30:290
9823996124,5cyclictest9-21ksoftirqd/019:55:280
9823996122,6cyclictest9-21ksoftirqd/021:50:140
9823996028,7cyclictest9-21ksoftirqd/020:25:290
9823996026,6cyclictest9-21ksoftirqd/019:35:160
9823996025,7cyclictest9-21ksoftirqd/000:30:290
9823996023,7cyclictest9-21ksoftirqd/022:10:140
9823996022,7cyclictest9-21ksoftirqd/000:30:010
9823996022,6cyclictest9-21ksoftirqd/023:35:010
9823996021,6cyclictest9-21ksoftirqd/019:15:150
9823996020,6cyclictest9-21ksoftirqd/021:45:270
9826995916,10cyclictest41-21ksoftirqd/322:50:003
9823995928,4cyclictest9-21ksoftirqd/022:05:150
9823995924,6cyclictest9-21ksoftirqd/022:00:140
9823995923,5cyclictest9-21ksoftirqd/020:50:170
9823995923,5cyclictest9-21ksoftirqd/020:50:170
9823995923,5cyclictest9-21ksoftirqd/020:45:210
9823995923,5cyclictest9-21ksoftirqd/019:20:220
9823995922,8cyclictest9-21ksoftirqd/023:30:010
9823995922,5cyclictest9-21ksoftirqd/023:35:150
9823995922,5cyclictest9-21ksoftirqd/021:25:190
9823995828,8cyclictest9-21ksoftirqd/022:00:010
9823995825,6cyclictest9-21ksoftirqd/020:05:010
9823995824,4cyclictest9-21ksoftirqd/019:10:140
9823995822,5cyclictest9-21ksoftirqd/022:45:160
9823995821,6cyclictest9-21ksoftirqd/021:40:140
9823995820,6cyclictest9-21ksoftirqd/023:20:280
9823995820,6cyclictest9-21ksoftirqd/023:20:280
9823995727,4cyclictest9-21ksoftirqd/021:30:140
9823995723,8cyclictest9-21ksoftirqd/022:40:140
9823995723,5cyclictest9-21ksoftirqd/023:10:130
9823995722,7cyclictest9-21ksoftirqd/021:35:120
9823995722,5cyclictest9-21ksoftirqd/022:30:140
9823995721,6cyclictest9-21ksoftirqd/023:15:150
9823995627,7cyclictest9-21ksoftirqd/020:15:170
9823995625,3cyclictest9-21ksoftirqd/023:50:170
9823995625,3cyclictest9-21ksoftirqd/023:50:170
9823995622,5cyclictest9-21ksoftirqd/019:50:010
9823995622,5cyclictest9-21ksoftirqd/019:50:010
9823995621,7cyclictest9-21ksoftirqd/023:40:140
9823995621,7cyclictest9-21ksoftirqd/000:25:000
9823995621,7cyclictest9-21ksoftirqd/000:25:000
296382560,2sleep30-21swapper/320:55:003
296382560,2sleep30-21swapper/320:55:003
9823995524,7cyclictest9-21ksoftirqd/022:55:140
9823995522,4cyclictest9-21ksoftirqd/020:20:280
9823995520,6cyclictest9-21ksoftirqd/021:00:190
9823995520,5cyclictest9-21ksoftirqd/020:40:290
982399546,2cyclictest24251-21cat00:00:010
9823995427,6cyclictest9-21ksoftirqd/019:40:240
9823995420,6cyclictest9-21ksoftirqd/022:25:260
134991540,1ptp4l401ktimersoftd/300:15:203
982599538,5cyclictest33-21ksoftirqd/223:05:012
982399535,6cyclictest9-21ksoftirqd/021:10:240
9823995328,7cyclictest9-21ksoftirqd/023:00:210
9823995322,6cyclictest9-21ksoftirqd/019:25:250
245342530,2sleep10-21swapper/100:00:011
982399529,3cyclictest9-21ksoftirqd/020:05:310
9823995219,6cyclictest9-21ksoftirqd/020:35:160
9823995216,6cyclictest9-21ksoftirqd/019:45:190
982399516,3cyclictest9-21ksoftirqd/000:15:280
9823995114,8cyclictest9-21ksoftirqd/022:54:150
9823995114,8cyclictest9-21ksoftirqd/022:54:150
9826995018,9cyclictest41-21ksoftirqd/300:00:183
982699494,3cyclictest41-21ksoftirqd/322:45:003
9826994910,9cyclictest41-21ksoftirqd/321:55:133
982399498,5cyclictest9-21ksoftirqd/023:05:280
982399493,6cyclictest9-21ksoftirqd/023:45:140
982599485,8cyclictest33-21ksoftirqd/223:55:002
982599485,8cyclictest33-21ksoftirqd/223:55:002
982599485,5cyclictest33-21ksoftirqd/222:00:202
982599473,4cyclictest33-21ksoftirqd/222:35:302
982399477,6cyclictest9-21ksoftirqd/021:20:000
982399471,6cyclictest9-21ksoftirqd/000:10:240
9825994631,4cyclictest33-21ksoftirqd/221:15:212
55592460,2sleep10-21swapper/122:15:181
982699451,6cyclictest41-21ksoftirqd/300:21:533
982699451,6cyclictest41-21ksoftirqd/300:21:533
982599451,5cyclictest0-21swapper/200:35:142
134991450,0ptp4l401ktimersoftd/320:40:193
982699440,5cyclictest41-21ksoftirqd/321:24:403
982699440,5cyclictest41-21ksoftirqd/321:13:043
982599449,4cyclictest33-21ksoftirqd/222:55:242
982599443,4cyclictest33-21ksoftirqd/221:55:252
9825994426,3cyclictest33-21ksoftirqd/223:25:012
9825994426,3cyclictest33-21ksoftirqd/223:25:012
982599440,5cyclictest33-21ksoftirqd/220:40:282
134991440,1ptp4l0-21swapper/321:27:253
982699430,6cyclictest41-21ksoftirqd/319:12:173
9825994325,16cyclictest33-21ksoftirqd/220:10:002
982699426,3cyclictest41-21ksoftirqd/323:30:123
9826994227,4cyclictest41-21ksoftirqd/319:30:253
982699422,4cyclictest121rcu_preempt19:17:363
982699421,4cyclictest41-21ksoftirqd/323:51:133
982699421,4cyclictest41-21ksoftirqd/323:51:123
9826994212,3cyclictest41-21ksoftirqd/320:10:163
982699420,5cyclictest41-21ksoftirqd/321:38:443
9824994235,4cyclictest26863-21cron23:00:001
134991420,0ptp4l401ktimersoftd/319:55:273
982699414,5cyclictest41-21ksoftirqd/320:55:243
982699414,3cyclictest121rcu_preempt00:10:263
9826994128,3cyclictest41-21ksoftirqd/321:00:163
982699411,8cyclictest41-21ksoftirqd/320:25:003
982699411,3cyclictest41-21ksoftirqd/322:19:523
982599413,3cyclictest33-21ksoftirqd/222:05:192
982599413,3cyclictest33-21ksoftirqd/221:10:252
982599411,6cyclictest33-21ksoftirqd/220:55:182
982599410,4cyclictest0-21swapper/219:40:242
134991410,1ptp4l401ktimersoftd/320:07:533
134991410,0ptp4l401ktimersoftd/319:46:533
982699406,3cyclictest121rcu_preempt22:10:233
982699405,3cyclictest121rcu_preempt22:20:273
982699405,3cyclictest121rcu_preempt22:20:273
9826994036,2cyclictest41-21ksoftirqd/323:20:003
982699401,3cyclictest41-21ksoftirqd/323:07:383
982699401,3cyclictest41-21ksoftirqd/319:53:583
982699401,3cyclictest41-21ksoftirqd/319:53:573
982699400,4cyclictest41-21ksoftirqd/300:26:423
982599404,9cyclictest33-21ksoftirqd/220:00:132
982599403,4cyclictest33-21ksoftirqd/219:50:202
982599403,4cyclictest33-21ksoftirqd/219:50:202
982599403,3cyclictest33-21ksoftirqd/200:30:292
9825994023,3cyclictest33-21ksoftirqd/200:05:262
9825994013,2cyclictest121rcu_preempt22:15:182
9824994035,3cyclictest25-21ksoftirqd/100:20:001
134991400,0ptp4l401ktimersoftd/300:35:153
982699397,4cyclictest41-21ksoftirqd/320:00:263
9826993935,2cyclictest41-21ksoftirqd/321:10:003
9826993932,4cyclictest41-21ksoftirqd/300:05:133
9826993925,3cyclictest41-21ksoftirqd/323:00:193
982699391,5cyclictest41-21ksoftirqd/323:21:313
982699391,5cyclictest41-21ksoftirqd/323:21:313
982699391,3cyclictest41-21ksoftirqd/321:42:333
9825993935,2cyclictest33-21ksoftirqd/219:40:002
9825993934,3cyclictest33-21ksoftirqd/222:45:002
9825993924,4cyclictest33-21ksoftirqd/223:45:262
9825993923,4cyclictest33-21ksoftirqd/222:45:222
9825993923,4cyclictest33-21ksoftirqd/221:00:162
9826993833,3cyclictest41-21ksoftirqd/320:35:243
9826993832,4cyclictest41-21ksoftirqd/322:33:253
982699380,5cyclictest41-21ksoftirqd/323:14:533
982599386,2cyclictest121rcu_preempt19:35:012
9825993834,2cyclictest33-21ksoftirqd/221:25:182
9825993822,4cyclictest33-21ksoftirqd/220:15:162
9825993818,6cyclictest33-21ksoftirqd/223:07:172
982599381,3cyclictest121rcu_preempt22:20:132
982599381,3cyclictest121rcu_preempt22:20:132
982599380,5cyclictest33-21ksoftirqd/220:50:212
982599380,5cyclictest33-21ksoftirqd/220:50:212
9824993831,4cyclictest29365-21sh23:05:011
9824993831,4cyclictest25-21ksoftirqd/119:58:091
134991380,0ptp4l401ktimersoftd/320:15:193
9826993733,2cyclictest41-21ksoftirqd/323:45:233
9826993730,4cyclictest41-21ksoftirqd/322:00:153
9826993730,4cyclictest41-21ksoftirqd/321:50:493
9826993725,9cyclictest41-21ksoftirqd/300:30:333
982599378,9cyclictest33-21ksoftirqd/200:10:292
9825993733,3cyclictest33-21ksoftirqd/223:14:592
9825993732,3cyclictest33-21ksoftirqd/223:20:002
9825993732,3cyclictest33-21ksoftirqd/220:30:162
9825993732,3cyclictest33-21ksoftirqd/219:50:002
9825993732,3cyclictest33-21ksoftirqd/200:05:012
9825993724,3cyclictest33-21ksoftirqd/221:35:242
982599372,3cyclictest121rcu_preempt19:25:222
982599370,2cyclictest121rcu_preempt21:30:212
9824993732,3cyclictest25-21ksoftirqd/123:20:201
9824993732,3cyclictest25-21ksoftirqd/123:20:201
9824993731,4cyclictest25-21ksoftirqd/119:52:001
9824993731,4cyclictest25-21ksoftirqd/119:52:001
9824993731,4cyclictest25-21ksoftirqd/100:37:161
9824993731,3cyclictest25-21ksoftirqd/120:35:241
9824993731,3cyclictest25-21ksoftirqd/119:45:001
9824993730,5cyclictest25-21ksoftirqd/100:30:011
9824993730,4cyclictest25-21ksoftirqd/122:49:521
9824993730,4cyclictest25-21ksoftirqd/122:35:561
9824993730,4cyclictest25-21ksoftirqd/121:00:081
9826993632,3cyclictest41-21ksoftirqd/320:25:293
9826993632,2cyclictest41-21ksoftirqd/321:17:393
9826993631,3cyclictest41-21ksoftirqd/319:40:243
9826993630,4cyclictest41-21ksoftirqd/322:28:203
9826993630,4cyclictest41-21ksoftirqd/321:46:273
9826993630,3cyclictest41-21ksoftirqd/321:35:013
9826993630,3cyclictest41-21ksoftirqd/319:20:293
982699362,3cyclictest121rcu_preempt22:09:053
982699361,5cyclictest41-21ksoftirqd/322:35:303
982599364,6cyclictest33-21ksoftirqd/220:36:092
9825993632,2cyclictest33-21ksoftirqd/223:30:192
9825993631,3cyclictest33-21ksoftirqd/221:45:002
9825993631,3cyclictest33-21ksoftirqd/221:05:132
9825993631,3cyclictest33-21ksoftirqd/220:15:012
9825993631,3cyclictest33-21ksoftirqd/200:25:142
9825993631,3cyclictest33-21ksoftirqd/200:25:002
9825993631,3cyclictest33-21ksoftirqd/200:24:592
9825993630,4cyclictest33-21ksoftirqd/222:30:142
982599362,4cyclictest121rcu_preempt23:25:252
9825993622,3cyclictest33-21ksoftirqd/219:10:132
9824993630,4cyclictest25-21ksoftirqd/123:38:101
9824993630,4cyclictest25-21ksoftirqd/122:43:541
9824993630,4cyclictest25-21ksoftirqd/121:52:311
9824993630,4cyclictest25-21ksoftirqd/120:54:181
9824993630,4cyclictest25-21ksoftirqd/120:54:181
9824993630,3cyclictest25-21ksoftirqd/123:50:201
9824993630,3cyclictest25-21ksoftirqd/123:50:201
9824993629,4cyclictest25-21ksoftirqd/123:50:001
9824993629,4cyclictest25-21ksoftirqd/122:54:051
9824993629,4cyclictest25-21ksoftirqd/122:54:051
9824993629,4cyclictest25-21ksoftirqd/122:22:121
9824993629,4cyclictest25-21ksoftirqd/122:22:121
9824993629,4cyclictest25-21ksoftirqd/122:10:371
9824993629,4cyclictest25-21ksoftirqd/121:56:081
9824993629,4cyclictest25-21ksoftirqd/120:15:421
9826993531,2cyclictest41-21ksoftirqd/322:55:013
9826993531,2cyclictest41-21ksoftirqd/322:55:013
9826993530,3cyclictest41-21ksoftirqd/322:55:163
9826993529,3cyclictest41-21ksoftirqd/323:35:273
982699352,3cyclictest41-21ksoftirqd/323:25:243
982699351,3cyclictest41-21ksoftirqd/319:37:283
982599353,4cyclictest33-21ksoftirqd/220:25:152
9825993530,3cyclictest33-21ksoftirqd/219:55:152
9825993530,3cyclictest33-21ksoftirqd/219:15:112
9825993529,4cyclictest33-21ksoftirqd/223:41:452
9825993529,4cyclictest33-21ksoftirqd/200:19:112
9825993521,3cyclictest33-21ksoftirqd/221:20:272
9824993529,4cyclictest25-21ksoftirqd/123:18:011
9824993529,4cyclictest25-21ksoftirqd/119:47:591
9824993528,4cyclictest25-21ksoftirqd/121:23:471
9826993430,3cyclictest41-21ksoftirqd/320:50:003
9826993430,2cyclictest41-21ksoftirqd/319:25:263
9825993431,2cyclictest33-21ksoftirqd/222:10:192
9825993430,2cyclictest33-21ksoftirqd/223:35:152
9825993429,3cyclictest33-21ksoftirqd/222:50:142
9825993429,3cyclictest33-21ksoftirqd/222:50:142
9825993429,3cyclictest33-21ksoftirqd/220:20:282
9825993429,3cyclictest33-21ksoftirqd/219:20:212
9825993420,3cyclictest33-21ksoftirqd/220:46:082
9824993429,3cyclictest25-21ksoftirqd/122:03:211
9824993428,4cyclictest25-21ksoftirqd/123:12:591
9824993428,4cyclictest25-21ksoftirqd/123:09:541
9824993428,4cyclictest25-21ksoftirqd/122:31:421
9824993428,3cyclictest25-21ksoftirqd/121:33:431
9824993427,4cyclictest25-21ksoftirqd/121:38:591
9824993427,4cyclictest25-21ksoftirqd/121:05:451
9824993427,4cyclictest25-21ksoftirqd/100:20:151
9824993427,4cyclictest25-21ksoftirqd/100:20:151
9826993329,2cyclictest41-21ksoftirqd/323:55:183
9826993328,3cyclictest41-21ksoftirqd/320:30:183
9825993328,3cyclictest33-21ksoftirqd/223:55:152
9825993328,3cyclictest33-21ksoftirqd/222:25:132
9825993328,3cyclictest33-21ksoftirqd/221:50:282
9825993327,4cyclictest33-21ksoftirqd/221:47:272
9824993329,2cyclictest25-21ksoftirqd/120:09:591
9824993328,3cyclictest25-21ksoftirqd/121:15:221
9824993328,3cyclictest25-21ksoftirqd/119:30:141
9824993328,2cyclictest25-21ksoftirqd/100:00:001
9824993327,4cyclictest25-21ksoftirqd/120:44:401
9824993326,4cyclictest25-21ksoftirqd/119:39:481
982699324,3cyclictest121rcu_preempt23:40:203
9824993227,3cyclictest25-21ksoftirqd/123:30:341
9824993227,3cyclictest25-21ksoftirqd/119:26:551
9824993227,3cyclictest25-21ksoftirqd/119:18:531
9824993226,4cyclictest25-21ksoftirqd/121:27:281
9824993226,4cyclictest25-21ksoftirqd/120:45:391
9824993226,3cyclictest25-21ksoftirqd/121:00:001
9824993226,3cyclictest25-21ksoftirqd/119:20:581
9824993225,4cyclictest25-21ksoftirqd/123:40:421
9824993225,4cyclictest25-21ksoftirqd/123:25:031
9824993220,9cyclictest25-21ksoftirqd/122:05:131
9824993126,3cyclictest25-21ksoftirqd/120:32:421
9824993125,3cyclictest25-21ksoftirqd/120:12:051
9824993120,9cyclictest25-21ksoftirqd/121:40:141
9824993025,3cyclictest25-21ksoftirqd/100:30:481
9824992924,3cyclictest25-21ksoftirqd/100:10:281
9824992923,3cyclictest25-21ksoftirqd/121:10:191
9824992923,3cyclictest25-21ksoftirqd/119:10:521
9824992823,3cyclictest25-21ksoftirqd/120:04:251
9824992822,4cyclictest25-21ksoftirqd/122:27:541
9824992722,3cyclictest25-21ksoftirqd/121:45:441
9824992721,4cyclictest25-21ksoftirqd/100:07:551
9824992418,4cyclictest25-21ksoftirqd/120:26:261
9824992115,3cyclictest25-21ksoftirqd/120:20:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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