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2026-06-10 - 12:10
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Wed Jun 10, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8872228199,19sleep00-21swapper/019:05:580
139491206173,22phc2sys0-21swapper/319:05:333
8892203171,21sleep20-21swapper/219:06:002
8682200168,21sleep10-21swapper/119:05:441
526321590,8sleep1151999cyclictest23:45:241
40092560,3sleep24015-21timerandwakeup22:35:252
139391550,1ptp4l401ktimersoftd/320:45:353
190312540,4sleep319026-21apt-config23:10:003
131862540,1sleep30-21swapper/322:55:243
301602500,2sleep130141-21apt-config00:40:001
139391500,1ptp4l401ktimersoftd/322:17:203
139391500,0ptp4l401ktimersoftd/320:57:393
139391470,0ptp4l401ktimersoftd/300:07:033
1519994440,2cyclictest25-21ksoftirqd/122:30:011
57898430,8rtkit-daemon0-21swapper/122:11:361
139391430,0ptp4l401ktimersoftd/323:00:023
139391420,0ptp4l401ktimersoftd/323:10:333
139391420,0ptp4l401ktimersoftd/322:40:173
1521994126,7cyclictest41-21ksoftirqd/319:50:153
1520994133,5cyclictest33-21ksoftirqd/200:15:142
1519994135,3cyclictest25-21ksoftirqd/119:25:001
139391410,0ptp4l401ktimersoftd/322:36:273
1520993935,3cyclictest35892irq/126-enp1s0-23:56:082
1519993935,2cyclictest25-21ksoftirqd/100:15:001
1519993930,6cyclictest25-21ksoftirqd/123:00:111
1519993834,2cyclictest25-21ksoftirqd/123:10:001
1519993833,3cyclictest25-21ksoftirqd/121:35:001
1519993833,3cyclictest25-21ksoftirqd/120:10:001
1519993831,3cyclictest25-21ksoftirqd/123:40:001
1518993822,5cyclictest9-21ksoftirqd/021:15:160
1521993731,4cyclictest41-21ksoftirqd/322:06:063
1519993732,3cyclictest25-21ksoftirqd/121:40:001
1519993732,3cyclictest25-21ksoftirqd/121:05:001
1519993732,3cyclictest25-21ksoftirqd/120:10:191
1519993731,4cyclictest25-21ksoftirqd/123:11:511
1519993731,3cyclictest25-21ksoftirqd/119:50:011
1519993730,5cyclictest25-21ksoftirqd/123:16:401
151999370,2cyclictest121rcu_preempt21:15:161
139391370,0ptp4l401ktimersoftd/320:35:243
139391370,0ptp4l401ktimersoftd/320:05:253
139391370,0ptp4l401ktimersoftd/300:20:163
1521993630,4cyclictest41-21ksoftirqd/319:12:073
1520993631,3cyclictest6982-21cron22:45:002
1520993631,3cyclictest33-21ksoftirqd/220:55:002
1520993630,4cyclictest33-21ksoftirqd/222:54:512
1520993630,4cyclictest33-21ksoftirqd/221:15:062
1519993631,3cyclictest25-21ksoftirqd/121:25:011
1519993631,3cyclictest25-21ksoftirqd/121:05:141
1519993631,3cyclictest25-21ksoftirqd/120:45:181
1519993630,4cyclictest25-21ksoftirqd/123:27:231
1519993630,4cyclictest25-21ksoftirqd/122:20:001
1519993630,4cyclictest25-21ksoftirqd/121:46:021
1519993630,4cyclictest25-21ksoftirqd/120:20:491
1519993630,4cyclictest25-21ksoftirqd/119:42:551
1519993630,4cyclictest25-21ksoftirqd/119:35:151
1519993630,4cyclictest25-21ksoftirqd/100:03:181
1518993631,3cyclictest9-21ksoftirqd/023:55:250
1518993631,3cyclictest9-21ksoftirqd/019:40:130
1518993631,3cyclictest9-21ksoftirqd/019:13:370
1518993630,4cyclictest9-21ksoftirqd/022:54:040
1518993630,4cyclictest9-21ksoftirqd/021:11:400
1518993630,4cyclictest9-21ksoftirqd/020:08:440
1518993630,3cyclictest9-21ksoftirqd/021:10:010
139391360,0ptp4l401ktimersoftd/320:40:183
139391360,0ptp4l401ktimersoftd/319:30:133
1521993530,3cyclictest41-21ksoftirqd/300:35:003
1521993529,4cyclictest41-21ksoftirqd/321:58:153
1521993529,4cyclictest41-21ksoftirqd/319:29:363
1520993531,2cyclictest33-21ksoftirqd/223:30:002
1520993530,3cyclictest33-21ksoftirqd/223:50:592
1520993529,4cyclictest33-21ksoftirqd/223:49:062
1520993529,4cyclictest33-21ksoftirqd/220:30:092
1520993518,9cyclictest33-21ksoftirqd/200:30:122
152099350,2cyclictest121rcu_preempt19:50:142
1519993531,3cyclictest25-21ksoftirqd/100:00:011
1519993531,2cyclictest25-21ksoftirqd/122:40:001
1519993529,4cyclictest25-21ksoftirqd/122:03:391
1519993529,4cyclictest25-21ksoftirqd/121:56:411
1519993529,4cyclictest25-21ksoftirqd/120:56:031
1519993529,4cyclictest25-21ksoftirqd/100:17:061
1519993529,3cyclictest25-21ksoftirqd/120:00:201
1518993531,3cyclictest9-21ksoftirqd/022:40:000
1518993530,3cyclictest9-21ksoftirqd/019:40:000
1518993530,3cyclictest9-21ksoftirqd/000:20:010
1518993529,4cyclictest9-21ksoftirqd/000:31:050
1521993429,3cyclictest41-21ksoftirqd/321:50:183
1521993429,3cyclictest41-21ksoftirqd/320:20:583
1521993428,4cyclictest41-21ksoftirqd/323:50:363
1521993428,4cyclictest41-21ksoftirqd/322:23:103
1521993428,4cyclictest41-21ksoftirqd/321:05:443
1521993428,4cyclictest41-21ksoftirqd/321:04:443
1520993430,3cyclictest33-21ksoftirqd/200:37:122
1520993429,3cyclictest33-21ksoftirqd/220:20:012
1520993429,3cyclictest33-21ksoftirqd/200:10:132
1520993428,4cyclictest33-21ksoftirqd/220:10:362
1520993428,4cyclictest33-21ksoftirqd/219:18:412
1519993429,3cyclictest25-21ksoftirqd/122:56:521
1519993429,3cyclictest25-21ksoftirqd/122:24:491
1519993429,3cyclictest25-21ksoftirqd/120:35:201
1519993429,3cyclictest25-21ksoftirqd/119:25:121
1519993428,4cyclictest25-21ksoftirqd/123:23:021
1519993428,3cyclictest25-21ksoftirqd/122:30:141
1519993427,5cyclictest25-21ksoftirqd/100:26:201
151999341,3cyclictest121rcu_preempt22:50:181
1518993430,3cyclictest9-21ksoftirqd/023:25:010
1518993430,3cyclictest9-21ksoftirqd/020:40:000
1518993430,2cyclictest9-21ksoftirqd/021:55:010
1518993428,4cyclictest9-21ksoftirqd/023:26:420
1518993428,4cyclictest9-21ksoftirqd/022:42:570
1518993428,4cyclictest9-21ksoftirqd/021:34:450
1518993428,3cyclictest9-21ksoftirqd/021:30:000
1521993328,3cyclictest41-21ksoftirqd/319:50:013
1521993328,3cyclictest41-21ksoftirqd/300:39:183
1521993327,4cyclictest41-21ksoftirqd/323:34:033
1521993327,4cyclictest41-21ksoftirqd/321:49:333
1521993327,4cyclictest41-21ksoftirqd/321:39:023
1521993327,4cyclictest41-21ksoftirqd/320:32:593
1521993327,4cyclictest41-21ksoftirqd/319:59:013
1521993326,5cyclictest41-21ksoftirqd/323:56:083
1520993329,3cyclictest33-21ksoftirqd/222:25:132
1520993329,3cyclictest33-21ksoftirqd/222:16:442
1520993328,3cyclictest33-21ksoftirqd/221:55:002
1520993328,3cyclictest33-21ksoftirqd/221:32:572
1520993328,3cyclictest33-21ksoftirqd/220:37:582
1520993327,4cyclictest33-21ksoftirqd/223:25:002
1520993327,4cyclictest33-21ksoftirqd/221:36:522
1520993327,4cyclictest33-21ksoftirqd/221:00:062
1520993327,4cyclictest33-21ksoftirqd/219:38:502
1520993326,5cyclictest33-21ksoftirqd/223:08:312
1520993326,4cyclictest33-21ksoftirqd/200:07:162
1519993329,3cyclictest25-21ksoftirqd/119:16:101
1519993328,3cyclictest25-21ksoftirqd/123:35:001
1519993327,4cyclictest25-21ksoftirqd/122:48:361
1519993327,4cyclictest25-21ksoftirqd/121:41:121
1519993327,4cyclictest25-21ksoftirqd/100:24:561
1519993323,9cyclictest25-21ksoftirqd/120:30:261
1518993330,2cyclictest9-21ksoftirqd/021:25:000
1518993328,3cyclictest9-21ksoftirqd/023:30:090
1518993328,3cyclictest9-21ksoftirqd/022:50:000
1518993328,3cyclictest9-21ksoftirqd/021:43:440
1518993328,3cyclictest9-21ksoftirqd/020:55:190
1518993328,3cyclictest9-21ksoftirqd/020:35:000
1518993327,4cyclictest9-21ksoftirqd/023:18:070
1518993327,4cyclictest9-21ksoftirqd/022:34:150
1518993327,4cyclictest9-21ksoftirqd/021:35:500
1518993327,4cyclictest9-21ksoftirqd/020:53:050
1518993327,4cyclictest9-21ksoftirqd/020:03:510
1518993327,4cyclictest9-21ksoftirqd/019:55:570
1518993327,3cyclictest9-21ksoftirqd/023:10:000
1518993327,3cyclictest9-21ksoftirqd/022:00:200
1521993227,3cyclictest41-21ksoftirqd/322:54:523
1521993227,3cyclictest41-21ksoftirqd/322:30:013
1521993227,3cyclictest41-21ksoftirqd/300:00:113
1521993226,4cyclictest41-21ksoftirqd/323:27:133
1521993226,4cyclictest41-21ksoftirqd/323:24:483
152099323,6cyclictest121rcu_preempt22:20:282
1520993228,3cyclictest33-21ksoftirqd/219:10:222
1520993227,3cyclictest33-21ksoftirqd/222:05:002
1520993226,4cyclictest33-21ksoftirqd/223:15:572
1520993226,4cyclictest33-21ksoftirqd/222:46:562
1520993226,4cyclictest33-21ksoftirqd/219:47:482
1520993225,4cyclictest33-21ksoftirqd/219:59:582
1520993225,4cyclictest33-21ksoftirqd/219:41:582
1520993220,11cyclictest33-21ksoftirqd/221:30:002
1519993228,3cyclictest25-21ksoftirqd/120:25:261
1519993227,3cyclictest3448-21cron21:29:591
1519993227,3cyclictest25-21ksoftirqd/121:55:011
1519993227,3cyclictest25-21ksoftirqd/120:19:141
1519993227,3cyclictest25-21ksoftirqd/100:09:591
1519993226,4cyclictest25-21ksoftirqd/120:44:531
1519993226,4cyclictest25-21ksoftirqd/100:30:541
1518993227,3cyclictest9-21ksoftirqd/022:15:000
1518993227,3cyclictest9-21ksoftirqd/020:45:180
1518993227,3cyclictest9-21ksoftirqd/020:40:180
1518993226,4cyclictest9-21ksoftirqd/023:52:010
151899320,5cyclictest121rcu_preempt21:05:010
139391320,0ptp4l401ktimersoftd/320:11:323
1521993126,3cyclictest41-21ksoftirqd/320:25:133
1521993125,4cyclictest41-21ksoftirqd/323:44:223
1521993125,4cyclictest41-21ksoftirqd/322:49:303
1521993125,4cyclictest41-21ksoftirqd/320:18:263
1520993126,3cyclictest5856-21uname20:25:182
1520993126,3cyclictest33-21ksoftirqd/221:10:012
1520993126,3cyclictest33-21ksoftirqd/220:23:192
1520993126,3cyclictest33-21ksoftirqd/219:25:012
1520993125,4cyclictest33-21ksoftirqd/221:55:052
1520993125,4cyclictest33-21ksoftirqd/221:44:152
1520993125,4cyclictest33-21ksoftirqd/220:45:092
1519993127,2cyclictest25-21ksoftirqd/123:40:191
1519993126,3cyclictest25-21ksoftirqd/123:50:581
1519993126,3cyclictest25-21ksoftirqd/120:50:211
1519993126,3cyclictest25-21ksoftirqd/119:55:011
1519993124,4cyclictest25-21ksoftirqd/120:00:021
1518993127,3cyclictest9-21ksoftirqd/021:45:200
1518993127,3cyclictest9-21ksoftirqd/019:31:290
1518993126,3cyclictest9-21ksoftirqd/019:50:180
1518993126,3cyclictest9-21ksoftirqd/019:47:280
1518993126,3cyclictest9-21ksoftirqd/019:22:170
1518993125,4cyclictest9-21ksoftirqd/023:45:350
1518993125,4cyclictest9-21ksoftirqd/000:20:300
1518993125,3cyclictest9-21ksoftirqd/023:45:000
1518993124,4cyclictest9-21ksoftirqd/020:25:180
1518993118,4cyclictest9-21ksoftirqd/020:15:010
139391310,0ptp4l401ktimersoftd/321:11:003
139391310,0ptp4l401ktimersoftd/300:25:283
139391310,0ptp4l401ktimersoftd/300:12:303
1521993025,3cyclictest41-21ksoftirqd/321:27:193
1521993024,4cyclictest41-21ksoftirqd/323:38:483
1521993024,4cyclictest41-21ksoftirqd/322:12:193
1521993024,4cyclictest41-21ksoftirqd/321:18:173
1521993024,4cyclictest41-21ksoftirqd/320:54:213
1521993024,3cyclictest41-21ksoftirqd/321:40:133
1521993023,4cyclictest41-21ksoftirqd/319:41:163
1520993027,2cyclictest33-21ksoftirqd/220:40:182
1520993025,3cyclictest33-21ksoftirqd/223:30:502
1520993025,3cyclictest33-21ksoftirqd/221:10:182
1520993025,3cyclictest33-21ksoftirqd/220:07:012
1520993024,4cyclictest33-21ksoftirqd/222:10:022
1520993024,4cyclictest33-21ksoftirqd/222:09:212
1520993024,4cyclictest33-21ksoftirqd/200:22:082
1519993025,3cyclictest25-21ksoftirqd/122:10:011
1518993026,2cyclictest9-21ksoftirqd/023:35:190
1518993026,2cyclictest9-21ksoftirqd/023:00:010
1518993025,3cyclictest9-21ksoftirqd/000:06:560
1518993024,4cyclictest9-21ksoftirqd/022:27:370
1518993024,4cyclictest9-21ksoftirqd/020:17:480
1518993024,4cyclictest9-21ksoftirqd/000:37:220
1518993024,3cyclictest9-21ksoftirqd/023:15:000
139391300,0ptp4l401ktimersoftd/300:16:313
1521992924,3cyclictest41-21ksoftirqd/323:15:123
1521992924,3cyclictest41-21ksoftirqd/322:30:193
1521992923,4cyclictest41-21ksoftirqd/320:02:053
1520992926,2cyclictest33-21ksoftirqd/223:00:012
1520992924,3cyclictest33-21ksoftirqd/223:14:042
1520992924,3cyclictest33-21ksoftirqd/221:20:212
1520992924,3cyclictest33-21ksoftirqd/220:00:242
1520992924,3cyclictest33-21ksoftirqd/200:28:242
1520992923,4cyclictest33-21ksoftirqd/222:31:492
1520992923,4cyclictest33-21ksoftirqd/221:46:482
1520992918,9cyclictest33-21ksoftirqd/220:55:132
1519992924,3cyclictest25-21ksoftirqd/121:10:011
1519992924,3cyclictest25-21ksoftirqd/119:15:001
1519992923,4cyclictest25-21ksoftirqd/119:32:471
1518992924,3cyclictest9-21ksoftirqd/019:15:130
1518992924,3cyclictest9-21ksoftirqd/000:10:310
1518992923,4cyclictest9-21ksoftirqd/020:20:530
139391290,0ptp4l401ktimersoftd/319:38:533
1521992823,3cyclictest41-21ksoftirqd/323:45:333
1521992822,4cyclictest41-21ksoftirqd/319:19:333
1520992823,3cyclictest33-21ksoftirqd/223:43:502
1520992823,3cyclictest33-21ksoftirqd/219:28:242
1518992823,3cyclictest9-21ksoftirqd/022:20:000
1518992823,3cyclictest9-21ksoftirqd/021:59:290
1518992822,4cyclictest9-21ksoftirqd/022:06:390
1518992822,4cyclictest9-21ksoftirqd/000:02:120
139391280,0ptp4l401ktimersoftd/321:30:053
139391280,0ptp4l401ktimersoftd/319:21:453
1520992722,3cyclictest33-21ksoftirqd/223:38:562
1520992722,3cyclictest33-21ksoftirqd/223:00:182
1519992723,2cyclictest25-21ksoftirqd/122:40:121
1518992722,3cyclictest9-21ksoftirqd/019:25:170
1521992621,3cyclictest41-21ksoftirqd/322:05:003
1520992621,3cyclictest33-21ksoftirqd/219:34:162
1518992621,3cyclictest9-21ksoftirqd/023:01:550
151899254,4cyclictest9-21ksoftirqd/000:25:160
1518992519,4cyclictest9-21ksoftirqd/022:23:520
1520992319,3cyclictest33-21ksoftirqd/200:00:262
139391230,0ptp4l401ktimersoftd/321:20:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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