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2026-03-14 - 13:59
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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 rackdslot2.osadl.org (updated Sat Mar 14, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57082244199,34sleep10-21swapper/119:06:591
139591234168,22phc2sys0-21swapper/319:07:533
59012227161,22sleep20-21swapper/219:09:292
38122209174,23sleep00-21swapper/019:05:090
6236996428,6cyclictest33-21ksoftirqd/220:04:592
6236996427,6cyclictest33-21ksoftirqd/222:00:002
6236996234,6cyclictest33-21ksoftirqd/200:25:262
233042620,6sleep0623499cyclictest19:45:120
6236995919,6cyclictest33-21ksoftirqd/220:15:002
6236995824,6cyclictest33-21ksoftirqd/220:40:002
6236995824,4cyclictest33-21ksoftirqd/220:15:232
6236995818,7cyclictest33-21ksoftirqd/221:45:262
623599581,2cyclictest5539-21ls21:20:241
139291580,1ptp4l401ktimersoftd/323:41:253
6236995727,7cyclictest33-21ksoftirqd/221:30:012
6236995727,7cyclictest33-21ksoftirqd/221:30:012
6236995723,5cyclictest33-21ksoftirqd/220:20:222
6236995721,4cyclictest33-21ksoftirqd/200:05:012
6236995624,5cyclictest33-21ksoftirqd/221:00:242
6236995623,5cyclictest33-21ksoftirqd/222:30:252
6236995522,4cyclictest33-21ksoftirqd/222:05:122
6236995522,4cyclictest33-21ksoftirqd/222:05:122
6236995522,3cyclictest33-21ksoftirqd/220:50:232
6236995424,3cyclictest33-21ksoftirqd/200:05:152
6236995424,3cyclictest33-21ksoftirqd/200:05:152
6236995422,7cyclictest33-21ksoftirqd/220:55:232
6236995422,6cyclictest33-21ksoftirqd/220:40:242
6236995422,5cyclictest33-21ksoftirqd/223:15:212
6236995421,4cyclictest33-21ksoftirqd/200:20:242
6236995421,3cyclictest33-21ksoftirqd/200:15:182
139291540,1ptp4l401ktimersoftd/300:05:163
139291540,1ptp4l401ktimersoftd/300:05:163
6236995333,13cyclictest33-21ksoftirqd/219:50:282
6236995323,7cyclictest33-21ksoftirqd/223:30:002
6236995323,3cyclictest33-21ksoftirqd/220:05:122
6236995317,8cyclictest33-21ksoftirqd/223:35:222
139291530,1ptp4l401ktimersoftd/320:29:303
6236995221,4cyclictest33-21ksoftirqd/222:50:262
623699518,6cyclictest33-21ksoftirqd/222:15:182
6236995123,6cyclictest33-21ksoftirqd/220:45:162
6236995122,7cyclictest33-21ksoftirqd/221:40:122
6236995121,3cyclictest33-21ksoftirqd/223:30:242
6236995120,3cyclictest33-21ksoftirqd/222:20:212
6236995117,6cyclictest33-21ksoftirqd/220:35:012
6236995022,3cyclictest33-21ksoftirqd/223:55:132
6236995020,7cyclictest33-21ksoftirqd/221:35:212
6236995020,4cyclictest33-21ksoftirqd/223:20:142
6236995015,7cyclictest33-21ksoftirqd/220:25:132
6236994925,4cyclictest33-21ksoftirqd/223:10:252
6236994915,7cyclictest33-21ksoftirqd/222:50:012
270602490,2sleep00-21swapper/022:05:210
270602490,2sleep00-21swapper/022:05:210
6236994834,11cyclictest33-21ksoftirqd/223:45:012
6236994812,10cyclictest33-21ksoftirqd/223:50:212
6236994811,4cyclictest33-21ksoftirqd/219:24:592
6236994810,5cyclictest33-21ksoftirqd/200:30:242
623599480,1cyclictest0-21swapper/121:25:251
623599480,1cyclictest0-21swapper/121:25:241
623799471,44cyclictest21858-21perf20:50:003
6236994734,3cyclictest33-21ksoftirqd/221:15:002
6236994715,9cyclictest33-21ksoftirqd/221:50:162
6236994714,4cyclictest33-21ksoftirqd/221:30:132
623699471,3cyclictest121rcu_preempt22:00:242
6236994713,11cyclictest33-21ksoftirqd/221:20:192
623699471,2cyclictest31395-21latency_hist21:10:002
6236994710,6cyclictest33-21ksoftirqd/222:10:152
6236994612,5cyclictest33-21ksoftirqd/219:10:132
6236994540,3cyclictest33-21ksoftirqd/223:50:012
6236994514,4cyclictest33-21ksoftirqd/219:15:252
623699451,2cyclictest121rcu_preempt19:40:002
623499455,3cyclictest9-21ksoftirqd/021:35:250
623699449,10cyclictest33-21ksoftirqd/219:20:162
6236994432,10cyclictest33-21ksoftirqd/222:55:242
6236994429,12cyclictest33-21ksoftirqd/219:50:012
6236994415,6cyclictest33-21ksoftirqd/222:25:182
6236994412,5cyclictest33-21ksoftirqd/219:30:162
135291440,7getstats623799cyclictest20:05:363
623699439,3cyclictest33-21ksoftirqd/200:35:252
623699436,8cyclictest33-21ksoftirqd/222:40:162
623599430,41cyclictest0-21swapper/119:31:351
139291430,0ptp4l401ktimersoftd/321:17:313
139291430,0ptp4l401ktimersoftd/320:58:213
139291430,0ptp4l401ktimersoftd/300:02:183
6236994211,5cyclictest33-21ksoftirqd/219:40:152
6236994135,3cyclictest33-21ksoftirqd/220:00:012
6236994112,11cyclictest33-21ksoftirqd/223:05:272
6234994136,3cyclictest18087-21cron19:35:000
139291410,0ptp4l401ktimersoftd/323:28:093
139291410,0ptp4l401ktimersoftd/322:05:153
139291410,0ptp4l401ktimersoftd/322:05:143
6237994034,4cyclictest41-21ksoftirqd/321:22:433
6236994034,3cyclictest33-21ksoftirqd/221:20:002
6234994035,2cyclictest9-21ksoftirqd/020:09:590
139291400,8ptp4l401ktimersoftd/322:54:043
6236993925,3cyclictest33-21ksoftirqd/200:10:262
6234993934,3cyclictest9-21ksoftirqd/022:40:000
6234993934,3cyclictest9-21ksoftirqd/019:43:200
6234993934,3cyclictest9-21ksoftirqd/000:29:590
6234993932,4cyclictest32599-21cron20:05:000
623499390,5cyclictest9-21ksoftirqd/023:10:200
6237993832,4cyclictest41-21ksoftirqd/320:33:363
623699381,2cyclictest121rcu_preempt22:35:182
623699380,2cyclictest121rcu_preempt23:00:242
6234993834,2cyclictest9-21ksoftirqd/022:30:170
6234993834,2cyclictest9-21ksoftirqd/019:25:000
6234993833,3cyclictest9-21ksoftirqd/023:05:010
6234993833,3cyclictest9-21ksoftirqd/022:20:010
6234993832,3cyclictest9-21ksoftirqd/021:45:260
6237993732,4cyclictest41-21ksoftirqd/323:39:213
6237993732,3cyclictest41-21ksoftirqd/319:40:113
6237993731,4cyclictest41-21ksoftirqd/322:57:063
6237993731,3cyclictest41-21ksoftirqd/300:20:003
6235993731,4cyclictest25-21ksoftirqd/120:48:441
6235993731,4cyclictest25-21ksoftirqd/119:14:201
6234993733,2cyclictest9-21ksoftirqd/000:40:000
6234993732,3cyclictest9-21ksoftirqd/023:00:010
6234993731,3cyclictest9-21ksoftirqd/020:35:260
139291370,0ptp4l401ktimersoftd/300:22:103
6237993631,3cyclictest41-21ksoftirqd/320:18:213
6237993631,3cyclictest41-21ksoftirqd/319:54:233
6237993631,3cyclictest41-21ksoftirqd/300:14:253
6237993630,4cyclictest41-21ksoftirqd/319:56:063
6237993630,4cyclictest41-21ksoftirqd/319:29:313
6237993630,4cyclictest41-21ksoftirqd/319:21:453
6235993630,4cyclictest25-21ksoftirqd/123:06:081
6235993630,4cyclictest25-21ksoftirqd/122:01:081
6235993630,4cyclictest25-21ksoftirqd/119:41:041
6234993631,3cyclictest9-21ksoftirqd/023:25:270
6234993631,3cyclictest9-21ksoftirqd/020:50:110
6234993631,3cyclictest9-21ksoftirqd/020:50:000
6234993631,3cyclictest9-21ksoftirqd/019:15:260
6234993631,3cyclictest9-21ksoftirqd/000:05:010
6234993631,2cyclictest9-21ksoftirqd/022:20:240
6234993630,4cyclictest9-21ksoftirqd/021:28:340
6234993630,4cyclictest9-21ksoftirqd/021:28:340
6237993530,3cyclictest41-21ksoftirqd/323:31:423
6237993530,3cyclictest41-21ksoftirqd/323:05:013
6237993530,3cyclictest41-21ksoftirqd/322:13:223
6237993530,3cyclictest41-21ksoftirqd/320:14:213
6237993529,4cyclictest41-21ksoftirqd/319:33:403
6237993529,4cyclictest41-21ksoftirqd/319:11:303
6235993530,3cyclictest25-21ksoftirqd/122:20:111
6235993529,4cyclictest25-21ksoftirqd/122:43:321
6235993529,4cyclictest25-21ksoftirqd/120:08:201
623499353,2cyclictest121rcu_preempt20:25:000
6234993531,2cyclictest9-21ksoftirqd/022:10:180
6234993531,2cyclictest9-21ksoftirqd/021:55:250
6234993531,2cyclictest9-21ksoftirqd/021:15:000
6234993531,2cyclictest9-21ksoftirqd/021:00:000
6234993530,3cyclictest9-21ksoftirqd/023:15:160
6234993530,3cyclictest9-21ksoftirqd/000:08:330
6234993530,3cyclictest9-21ksoftirqd/000:08:330
6234993530,2cyclictest9-21ksoftirqd/022:40:190
6234993529,4cyclictest9-21ksoftirqd/000:33:590
6234993529,4cyclictest9-21ksoftirqd/000:22:520
139291350,0ptp4l401ktimersoftd/321:25:243
139291350,0ptp4l401ktimersoftd/321:25:233
6237993429,3cyclictest41-21ksoftirqd/320:43:003
6237993428,4cyclictest41-21ksoftirqd/323:16:293
6237993428,4cyclictest41-21ksoftirqd/322:24:503
6237993428,4cyclictest41-21ksoftirqd/321:04:213
6237993428,4cyclictest41-21ksoftirqd/319:35:123
6237993428,4cyclictest41-21ksoftirqd/300:31:593
6237993427,4cyclictest41-21ksoftirqd/323:45:013
6235993429,3cyclictest25-21ksoftirqd/123:42:291
6235993429,3cyclictest25-21ksoftirqd/122:36:061
6235993429,3cyclictest25-21ksoftirqd/120:44:331
6235993429,3cyclictest25-21ksoftirqd/119:17:051
6235993429,3cyclictest25-21ksoftirqd/100:32:571
6235993429,3cyclictest25-21ksoftirqd/100:19:041
6235993429,3cyclictest25-21ksoftirqd/100:12:541
6235993428,4cyclictest25-21ksoftirqd/123:31:551
6235993428,4cyclictest25-21ksoftirqd/121:49:291
6235993428,4cyclictest25-21ksoftirqd/121:41:111
6235993428,4cyclictest25-21ksoftirqd/121:00:391
6235993428,4cyclictest25-21ksoftirqd/120:56:061
6235993428,4cyclictest25-21ksoftirqd/120:28:061
6235993428,4cyclictest25-21ksoftirqd/119:54:121
6235993428,4cyclictest25-21ksoftirqd/119:36:391
6235993427,5cyclictest25-21ksoftirqd/122:06:301
6235993427,5cyclictest25-21ksoftirqd/122:06:291
6234993430,2cyclictest9-21ksoftirqd/023:45:010
6234993429,3cyclictest9-21ksoftirqd/021:55:000
6234993429,3cyclictest9-21ksoftirqd/021:40:250
6234993429,3cyclictest9-21ksoftirqd/020:00:010
6234993429,3cyclictest9-21ksoftirqd/019:55:010
6234993429,3cyclictest9-21ksoftirqd/000:00:010
6234993428,4cyclictest9-21ksoftirqd/023:45:220
6237993328,3cyclictest41-21ksoftirqd/323:00:103
6237993328,3cyclictest41-21ksoftirqd/322:38:523
6237993327,4cyclictest41-21ksoftirqd/322:03:233
6237993327,4cyclictest41-21ksoftirqd/320:54:563
6235993328,3cyclictest25-21ksoftirqd/123:25:571
6235993328,3cyclictest25-21ksoftirqd/123:23:571
6235993328,3cyclictest25-21ksoftirqd/123:18:151
6235993328,3cyclictest25-21ksoftirqd/119:25:391
6235993327,4cyclictest25-21ksoftirqd/123:47:391
6235993327,4cyclictest25-21ksoftirqd/122:18:101
6235993327,4cyclictest25-21ksoftirqd/119:48:211
623499334,6cyclictest121rcu_preempt21:05:010
6234993330,2cyclictest9-21ksoftirqd/000:15:110
6234993329,3cyclictest9-21ksoftirqd/022:50:000
6234993329,2cyclictest9-21ksoftirqd/023:24:590
6234993328,3cyclictest9-21ksoftirqd/021:25:000
6234993328,3cyclictest9-21ksoftirqd/021:20:000
6234993327,3cyclictest9-21ksoftirqd/020:10:130
6237993227,3cyclictest41-21ksoftirqd/321:45:593
6237993227,3cyclictest41-21ksoftirqd/321:05:433
6237993226,4cyclictest41-21ksoftirqd/322:28:353
6237993226,4cyclictest41-21ksoftirqd/321:43:503
6237993226,4cyclictest41-21ksoftirqd/300:26:213
6237993225,5cyclictest41-21ksoftirqd/322:17:243
6237993225,4cyclictest41-21ksoftirqd/321:57:263
6235993227,3cyclictest25-21ksoftirqd/120:14:291
6235993227,3cyclictest25-21ksoftirqd/120:03:311
6235993227,3cyclictest25-21ksoftirqd/119:59:291
6235993227,3cyclictest25-21ksoftirqd/100:26:031
6235993227,3cyclictest25-21ksoftirqd/100:01:591
6235993226,4cyclictest25-21ksoftirqd/121:06:451
6235993226,4cyclictest25-21ksoftirqd/120:32:301
6234993229,2cyclictest9-21ksoftirqd/023:54:210
6234993228,2cyclictest9-21ksoftirqd/020:30:010
6234993227,3cyclictest9-21ksoftirqd/023:35:000
6234993227,3cyclictest9-21ksoftirqd/021:33:360
6234993227,3cyclictest9-21ksoftirqd/020:30:120
6234993226,4cyclictest9-21ksoftirqd/023:05:180
6234993226,4cyclictest9-21ksoftirqd/019:39:430
6237993126,3cyclictest41-21ksoftirqd/323:56:033
6237993126,3cyclictest41-21ksoftirqd/323:50:103
6237993126,3cyclictest41-21ksoftirqd/321:52:503
6237993125,4cyclictest41-21ksoftirqd/323:10:313
6237993125,4cyclictest41-21ksoftirqd/321:35:033
6237993125,4cyclictest41-21ksoftirqd/321:31:183
6237993125,4cyclictest41-21ksoftirqd/321:12:253
6235993126,3cyclictest25-21ksoftirqd/122:49:211
6235993126,3cyclictest25-21ksoftirqd/122:25:481
6235993126,3cyclictest25-21ksoftirqd/121:12:541
6235993126,3cyclictest25-21ksoftirqd/120:20:561
6235993126,3cyclictest25-21ksoftirqd/100:37:581
6235993126,3cyclictest25-21ksoftirqd/100:05:081
6235993126,3cyclictest25-21ksoftirqd/100:05:081
6234993127,3cyclictest9-21ksoftirqd/020:15:180
6234993127,2cyclictest9-21ksoftirqd/020:45:000
6234993127,2cyclictest9-21ksoftirqd/019:10:130
6234993126,3cyclictest9-21ksoftirqd/022:55:010
6234993125,3cyclictest9-21ksoftirqd/019:25:190
6237993024,4cyclictest41-21ksoftirqd/322:33:203
6235993025,3cyclictest25-21ksoftirqd/121:55:351
6235993025,3cyclictest25-21ksoftirqd/121:18:271
6235993025,3cyclictest25-21ksoftirqd/120:35:181
6235993025,3cyclictest25-21ksoftirqd/120:17:431
6235993024,4cyclictest25-21ksoftirqd/120:54:371
6235993024,3cyclictest25-21ksoftirqd/122:13:201
6234993027,2cyclictest9-21ksoftirqd/022:00:130
6234993014,10cyclictest9-21ksoftirqd/000:10:260
623499301,2cyclictest121rcu_preempt22:25:140
139291300,0ptp4l401ktimersoftd/319:45:053
6237992923,4cyclictest41-21ksoftirqd/323:20:463
6237992922,5cyclictest41-21ksoftirqd/322:45:073
6235992925,3cyclictest25-21ksoftirqd/123:35:261
6235992924,3cyclictest25-21ksoftirqd/123:56:351
6235992924,3cyclictest25-21ksoftirqd/121:35:111
6235992924,3cyclictest25-21ksoftirqd/121:31:241
6235992924,3cyclictest25-21ksoftirqd/100:22:481
6234992924,3cyclictest9-21ksoftirqd/021:05:250
6237992823,3cyclictest41-21ksoftirqd/322:42:063
6237992823,3cyclictest41-21ksoftirqd/320:04:253
6237992822,4cyclictest41-21ksoftirqd/320:21:463
6235992823,3cyclictest25-21ksoftirqd/123:03:421
6235992823,3cyclictest25-21ksoftirqd/119:20:301
6234992824,3cyclictest9-21ksoftirqd/023:35:190
6237992722,3cyclictest41-21ksoftirqd/320:37:373
6237992722,3cyclictest41-21ksoftirqd/319:17:003
6237992722,3cyclictest41-21ksoftirqd/300:37:323
6235992722,3cyclictest25-21ksoftirqd/123:50:431
6235992621,3cyclictest25-21ksoftirqd/122:56:241
6235992621,3cyclictest25-21ksoftirqd/122:31:051
6235992519,4cyclictest25-21ksoftirqd/123:13:181
6235992419,3cyclictest25-21ksoftirqd/122:54:541
6235992217,3cyclictest25-21ksoftirqd/121:50:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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