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2025-12-22 - 17:37
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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 Mon Dec 22, 2025 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591237170,22phc2sys0-21swapper/307:05:473
295602206173,22sleep00-21swapper/007:08:210
294072206172,23sleep20-21swapper/207:06:222
294062203168,23sleep10-21swapper/107:06:221
226602580,7sleep22998399cyclictest12:35:002
247482540,2sleep00-21swapper/010:20:200
102972530,4sleep341-21ksoftirqd/307:35:153
26122510,1sleep22615-21latency_hist09:35:012
139291500,1ptp4l401ktimersoftd/309:40:573
139291480,1ptp4l401ktimersoftd/307:19:003
2998399470,11cyclictest28062-21kworker/2:111:25:242
2998399440,42cyclictest0-21swapper/210:05:342
139291440,0ptp4l401ktimersoftd/311:00:543
139291440,0ptp4l401ktimersoftd/308:04:593
2998399430,41cyclictest0-21swapper/209:15:352
29982994316,26cyclictest0-21swapper/108:09:351
139291430,0ptp4l401ktimersoftd/311:06:033
139291430,0ptp4l401ktimersoftd/307:20:293
2998399421,39cyclictest0-21swapper/210:00:352
2998399420,41cyclictest0-21swapper/210:40:342
2998199426,2cyclictest9-21ksoftirqd/012:15:000
29981994213,3cyclictest9-21ksoftirqd/008:10:150
139291420,33ptp4l0-21swapper/307:10:013
139291420,0ptp4l401ktimersoftd/308:05:273
29984994136,3cyclictest41-21ksoftirqd/311:30:003
29981994137,2cyclictest9-21ksoftirqd/009:20:000
29981994131,4cyclictest9-21ksoftirqd/011:06:370
139291410,1ptp4l401ktimersoftd/309:47:103
139291410,0ptp4l401ktimersoftd/312:00:213
139291410,0ptp4l401ktimersoftd/310:05:213
29984994032,3cyclictest41-21ksoftirqd/309:34:283
2998199401,3cyclictest9-21ksoftirqd/010:25:250
41298390,2rtkit-daemon0-21swapper/007:10:220
29982993911,26cyclictest0-21swapper/108:35:551
29981993934,3cyclictest9-21ksoftirqd/009:10:230
29984993833,3cyclictest41-21ksoftirqd/309:20:003
29983993832,4cyclictest33-21ksoftirqd/211:44:412
2998399381,16cyclictest8308-21systemctl08:40:002
2998399381,16cyclictest2334-21cat07:20:012
2998399380,36cyclictest0-21swapper/208:00:252
29982993811,25cyclictest0-21swapper/109:15:551
2998199386,7cyclictest9-21ksoftirqd/011:50:000
29981993833,3cyclictest9-21ksoftirqd/007:20:000
29981993833,2cyclictest9-21ksoftirqd/011:45:000
29981993831,4cyclictest9-21ksoftirqd/012:27:330
29981993831,4cyclictest9-21ksoftirqd/012:27:320
29981993811,7cyclictest9-21ksoftirqd/011:00:140
41298370,5rtkit-daemon11610-21awk09:50:270
29984993733,3cyclictest41-21ksoftirqd/311:40:013
29984993733,3cyclictest41-21ksoftirqd/308:50:003
29984993732,3cyclictest41-21ksoftirqd/312:30:013
29984993732,3cyclictest41-21ksoftirqd/312:30:013
29984993732,3cyclictest41-21ksoftirqd/312:24:593
29984993732,3cyclictest41-21ksoftirqd/308:40:203
29984993731,4cyclictest41-21ksoftirqd/310:57:123
29984993731,4cyclictest41-21ksoftirqd/309:51:213
29984993731,4cyclictest41-21ksoftirqd/309:10:473
2998399372,16cyclictest22813-21cat11:25:002
29983993712,3cyclictest21636-21latency_hist08:00:002
2998399371,17cyclictest1008-21latency_hist10:40:012
29982993710,25cyclictest0-21swapper/108:50:351
2998199374,3cyclictest121rcu_preempt08:45:170
29981993733,2cyclictest9-21ksoftirqd/012:15:200
29981993732,3cyclictest9-21ksoftirqd/008:05:200
29981993732,3cyclictest9-21ksoftirqd/007:25:140
29981993731,3cyclictest9-21ksoftirqd/012:30:160
2998199371,3cyclictest121rcu_preempt10:35:250
2998199370,2cyclictest9-21ksoftirqd/010:30:280
2998199370,2cyclictest121rcu_preempt08:50:260
139291370,0ptp4l401ktimersoftd/309:35:193
29984993631,3cyclictest41-21ksoftirqd/312:13:313
29984993631,3cyclictest41-21ksoftirqd/310:00:003
29984993631,3cyclictest41-21ksoftirqd/309:00:203
29984993631,3cyclictest41-21ksoftirqd/307:50:003
29984993630,4cyclictest41-21ksoftirqd/312:31:493
29984993630,4cyclictest41-21ksoftirqd/312:19:363
29984993630,4cyclictest41-21ksoftirqd/311:43:433
29984993630,4cyclictest41-21ksoftirqd/310:12:453
29983993630,4cyclictest33-21ksoftirqd/208:43:182
29982993631,3cyclictest25-21ksoftirqd/110:58:071
29982993631,3cyclictest25-21ksoftirqd/109:06:511
29982993631,3cyclictest25-21ksoftirqd/108:57:131
29982993630,4cyclictest25-21ksoftirqd/111:22:151
2998299360,34cyclictest0-21swapper/111:41:151
2998199366,4cyclictest9-21ksoftirqd/011:32:040
29981993632,3cyclictest9-21ksoftirqd/011:39:590
29981993631,3cyclictest9-21ksoftirqd/011:20:170
29981993631,3cyclictest9-21ksoftirqd/010:55:000
29981993631,3cyclictest9-21ksoftirqd/010:10:010
29981993631,3cyclictest9-21ksoftirqd/010:00:010
29981993631,3cyclictest9-21ksoftirqd/009:35:140
29981993631,3cyclictest9-21ksoftirqd/007:35:230
29981993631,3cyclictest9-21ksoftirqd/007:30:270
29981993630,3cyclictest9-21ksoftirqd/012:00:140
139291360,0ptp4l401ktimersoftd/307:50:203
29984993530,3cyclictest41-21ksoftirqd/310:43:133
29984993530,3cyclictest41-21ksoftirqd/309:25:133
29984993530,3cyclictest41-21ksoftirqd/308:25:013
29984993529,4cyclictest41-21ksoftirqd/312:39:483
29984993529,4cyclictest41-21ksoftirqd/310:21:273
29984993529,4cyclictest41-21ksoftirqd/309:08:463
29984993529,4cyclictest41-21ksoftirqd/308:36:093
29984993529,4cyclictest41-21ksoftirqd/308:19:153
29984993529,4cyclictest41-21ksoftirqd/308:12:263
29983993530,3cyclictest33-21ksoftirqd/209:45:562
29983993530,3cyclictest33-21ksoftirqd/208:10:122
29983993530,3cyclictest33-21ksoftirqd/207:12:362
29983993529,4cyclictest33-21ksoftirqd/211:33:262
29983993529,4cyclictest33-21ksoftirqd/210:23:122
29983993529,4cyclictest33-21ksoftirqd/207:52:112
29983993513,3cyclictest8832-21df_inode10:55:162
29983993513,3cyclictest3732-21sed09:35:172
29982993530,3cyclictest25-21ksoftirqd/108:29:531
29982993529,4cyclictest25-21ksoftirqd/111:50:591
29982993529,4cyclictest25-21ksoftirqd/111:18:301
29982993529,4cyclictest25-21ksoftirqd/109:12:451
29982993529,4cyclictest25-21ksoftirqd/108:01:041
29982993529,4cyclictest25-21ksoftirqd/107:45:361
2998299350,34cyclictest0-21swapper/108:16:151
2998199356,3cyclictest9-21ksoftirqd/009:45:280
29981993531,2cyclictest9-21ksoftirqd/008:40:200
29981993530,3cyclictest9-21ksoftirqd/011:55:000
29981993530,3cyclictest9-21ksoftirqd/009:00:010
29981993529,4cyclictest9-21ksoftirqd/007:50:440
29981993529,3cyclictest9-21ksoftirqd/012:40:010
29981993528,3cyclictest9-21ksoftirqd/008:24:000
2998199352,2cyclictest9-21ksoftirqd/009:00:230
139291350,0ptp4l401ktimersoftd/307:40:143
29984993430,2cyclictest41-21ksoftirqd/311:15:003
29984993429,3cyclictest41-21ksoftirqd/310:15:193
29984993428,4cyclictest41-21ksoftirqd/312:07:593
29984993428,4cyclictest41-21ksoftirqd/310:47:273
2998399346,27cyclictest22834-21kworker/2:208:30:252
29983993429,3cyclictest33-21ksoftirqd/211:07:232
29983993429,3cyclictest33-21ksoftirqd/209:41:512
29983993429,3cyclictest33-21ksoftirqd/209:12:142
29983993428,4cyclictest33-21ksoftirqd/212:03:032
29983993428,4cyclictest33-21ksoftirqd/211:35:512
29983993428,4cyclictest33-21ksoftirqd/210:28:002
29983993428,4cyclictest33-21ksoftirqd/210:16:092
29983993428,4cyclictest33-21ksoftirqd/210:13:322
29983993428,4cyclictest33-21ksoftirqd/209:21:012
29983993428,4cyclictest33-21ksoftirqd/209:06:242
29982993429,3cyclictest25-21ksoftirqd/109:31:591
29982993429,3cyclictest25-21ksoftirqd/108:13:091
29982993429,3cyclictest25-21ksoftirqd/107:33:281
29982993428,4cyclictest25-21ksoftirqd/109:55:381
2998199345,4cyclictest9-21ksoftirqd/008:30:040
2998199344,3cyclictest121rcu_preempt07:40:230
2998199343,2cyclictest121rcu_preempt10:00:210
29981993429,3cyclictest9-21ksoftirqd/011:29:590
29981993429,3cyclictest9-21ksoftirqd/009:30:220
29981993429,3cyclictest9-21ksoftirqd/008:40:000
29981993428,4cyclictest9-21ksoftirqd/007:45:310
29981993428,4cyclictest9-21ksoftirqd/007:22:040
29981993428,3cyclictest9-21ksoftirqd/010:20:000
29981993428,3cyclictest9-21ksoftirqd/009:20:060
29981993428,3cyclictest9-21ksoftirqd/008:30:010
29981993428,3cyclictest9-21ksoftirqd/008:00:200
29981993427,4cyclictest9-21ksoftirqd/009:26:120
2998199341,2cyclictest121rcu_preempt11:15:160
2998199341,2cyclictest121rcu_preempt10:55:270
2998199340,8cyclictest9-21ksoftirqd/010:10:210
2998199340,5cyclictest9-21ksoftirqd/012:20:220
29984993328,3cyclictest41-21ksoftirqd/308:56:433
29984993327,4cyclictest41-21ksoftirqd/311:51:173
29984993327,4cyclictest41-21ksoftirqd/308:33:523
29984993327,4cyclictest41-21ksoftirqd/308:28:183
29983993327,4cyclictest33-21ksoftirqd/212:24:382
29983993327,4cyclictest33-21ksoftirqd/211:17:292
29983993327,4cyclictest33-21ksoftirqd/211:11:282
29983993327,4cyclictest33-21ksoftirqd/208:19:512
29983993326,4cyclictest33-21ksoftirqd/211:58:492
29982993328,3cyclictest25-21ksoftirqd/111:47:091
29982993328,3cyclictest25-21ksoftirqd/110:45:131
29982993328,3cyclictest25-21ksoftirqd/109:46:551
29982993328,3cyclictest25-21ksoftirqd/109:41:091
29982993328,3cyclictest25-21ksoftirqd/107:51:221
29982993327,4cyclictest25-21ksoftirqd/111:59:051
29982993327,4cyclictest25-21ksoftirqd/111:03:201
29982993327,4cyclictest25-21ksoftirqd/110:33:331
29982993327,4cyclictest25-21ksoftirqd/109:29:061
29982993327,4cyclictest25-21ksoftirqd/109:01:021
2998199335,2cyclictest9-21ksoftirqd/010:40:280
2998199333,3cyclictest9-21ksoftirqd/007:55:190
29981993329,3cyclictest9-21ksoftirqd/009:10:010
29981993329,2cyclictest9-21ksoftirqd/009:40:150
29981993328,3cyclictest9-21ksoftirqd/011:55:090
2998199330,4cyclictest9-21ksoftirqd/011:10:280
29984993227,3cyclictest41-21ksoftirqd/311:57:163
29984993227,3cyclictest41-21ksoftirqd/311:30:483
29984993227,3cyclictest41-21ksoftirqd/310:33:533
29984993227,3cyclictest41-21ksoftirqd/310:04:403
29984993227,3cyclictest41-21ksoftirqd/308:53:063
29984993226,4cyclictest41-21ksoftirqd/310:51:043
29984993226,4cyclictest41-21ksoftirqd/309:21:263
29983993227,3cyclictest33-21ksoftirqd/210:48:152
29983993227,3cyclictest33-21ksoftirqd/208:55:252
29983993227,3cyclictest33-21ksoftirqd/208:45:122
29983993226,4cyclictest33-21ksoftirqd/212:15:112
29983993226,4cyclictest33-21ksoftirqd/211:04:062
2998399320,30cyclictest0-21swapper/207:42:552
29982993227,3cyclictest25-21ksoftirqd/112:30:151
29982993227,3cyclictest25-21ksoftirqd/112:14:251
29982993227,3cyclictest25-21ksoftirqd/110:12:021
29982993227,3cyclictest25-21ksoftirqd/110:04:551
29982993227,3cyclictest25-21ksoftirqd/109:39:481
29982993226,4cyclictest25-21ksoftirqd/112:20:471
29982993226,4cyclictest25-21ksoftirqd/110:15:111
29982993226,4cyclictest25-21ksoftirqd/108:48:261
29982993226,3cyclictest25-21ksoftirqd/110:24:461
29984993127,2cyclictest41-21ksoftirqd/307:35:003
29984993126,3cyclictest41-21ksoftirqd/310:25:563
29984993126,3cyclictest41-21ksoftirqd/307:29:443
29983993126,3cyclictest33-21ksoftirqd/211:53:442
29983993126,3cyclictest33-21ksoftirqd/208:21:212
29983993126,3cyclictest33-21ksoftirqd/207:36:442
29983993126,3cyclictest33-21ksoftirqd/207:21:182
29983993125,4cyclictest33-21ksoftirqd/211:46:542
29983993125,4cyclictest33-21ksoftirqd/207:28:412
29982993126,3cyclictest25-21ksoftirqd/111:26:041
29982993126,3cyclictest25-21ksoftirqd/110:25:121
29982993125,4cyclictest25-21ksoftirqd/111:11:201
29982993125,4cyclictest25-21ksoftirqd/111:07:551
29982993125,4cyclictest25-21ksoftirqd/110:08:491
29982993125,4cyclictest25-21ksoftirqd/107:17:401
29982993124,4cyclictest25-21ksoftirqd/110:41:591
29981993127,2cyclictest9-21ksoftirqd/012:06:130
29981993126,3cyclictest9-21ksoftirqd/010:45:140
2998199310,2cyclictest121rcu_preempt08:15:270
29984993025,3cyclictest41-21ksoftirqd/311:20:073
29984993025,3cyclictest41-21ksoftirqd/311:15:583
29983993025,3cyclictest33-21ksoftirqd/212:28:392
29983993025,3cyclictest33-21ksoftirqd/212:28:382
29983993025,3cyclictest33-21ksoftirqd/208:25:112
29983993024,4cyclictest33-21ksoftirqd/210:53:312
29983993024,4cyclictest33-21ksoftirqd/207:46:572
29983993024,4cyclictest33-21ksoftirqd/207:32:012
29982993025,3cyclictest25-21ksoftirqd/107:21:591
29982993024,4cyclictest25-21ksoftirqd/112:18:101
139291300,1ptp4l401ktimersoftd/307:59:573
139291300,0ptp4l401ktimersoftd/311:48:573
29984992925,3cyclictest41-21ksoftirqd/310:35:193
2998399297,20cyclictest1051-21kworker/2:109:55:132
29983992924,3cyclictest33-21ksoftirqd/212:35:552
29983992923,4cyclictest33-21ksoftirqd/212:09:492
29982992924,3cyclictest25-21ksoftirqd/109:23:091
29982992923,4cyclictest25-21ksoftirqd/107:14:151
29983992823,3cyclictest33-21ksoftirqd/210:31:202
29983992823,3cyclictest33-21ksoftirqd/208:54:472
29983992823,3cyclictest33-21ksoftirqd/208:07:152
29983992822,3cyclictest33-21ksoftirqd/209:00:032
29982992823,3cyclictest25-21ksoftirqd/111:38:391
29982992823,3cyclictest25-21ksoftirqd/107:56:101
29982992823,3cyclictest25-21ksoftirqd/107:37:431
29982992822,4cyclictest25-21ksoftirqd/107:29:351
41298270,2rtkit-daemon0-21swapper/108:32:311
29983992722,3cyclictest33-21ksoftirqd/209:53:062
29982992722,3cyclictest25-21ksoftirqd/112:37:301
29982992721,4cyclictest25-21ksoftirqd/108:22:231
29983992621,3cyclictest33-21ksoftirqd/212:13:022
29983992621,3cyclictest33-21ksoftirqd/209:25:442
29982992621,3cyclictest25-21ksoftirqd/110:37:261
29982992614,11cyclictest0-21swapper/108:40:551
29982992520,3cyclictest25-21ksoftirqd/112:00:101
29982992520,3cyclictest25-21ksoftirqd/111:32:221
29982992519,4cyclictest25-21ksoftirqd/112:28:101
29982992519,4cyclictest25-21ksoftirqd/112:28:101
29982992419,3cyclictest25-21ksoftirqd/109:51:451
29982992217,3cyclictest25-21ksoftirqd/107:43:311
2998299202,15cyclictest6739-21tr10:50:191
29982992015,3cyclictest25-21ksoftirqd/112:06:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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