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2026-07-20 - 04:48
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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 Mon Jul 20, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491240173,22phc2sys0-21swapper/319:08:103
295262230170,50sleep20-21swapper/219:07:022
294722205172,22sleep10-21swapper/119:06:191
296272202168,22sleep00-21swapper/019:07:470
139491163124,13phc2sys0-21swapper/319:10:003
1803121550,4sleep13008999cyclictest00:20:191
857621410,7sleep13008999cyclictest19:30:231
2853521340,7sleep03008899cyclictest23:35:160
30090997336,5cyclictest33-21ksoftirqd/222:45:002
139391710,1ptp4l391rcuc/321:45:183
3008999676,59cyclictest0-21swapper/123:25:531
3008999655,57cyclictest0-21swapper/122:05:531
30090996030,4cyclictest33-21ksoftirqd/220:25:182
271902590,5sleep227194-21irqrtprio20:10:192
44752580,3sleep20-21swapper/222:45:162
14292560,3sleep20-21swapper/223:45:212
139391560,1ptp4l401ktimersoftd/321:50:013
139391550,1ptp4l401ktimersoftd/323:31:193
30090995423,4cyclictest33-21ksoftirqd/219:15:012
30090995322,6cyclictest33-21ksoftirqd/221:45:212
30090995322,3cyclictest33-21ksoftirqd/221:05:272
30090995223,3cyclictest33-21ksoftirqd/221:20:282
300472520,2sleep20-21swapper/221:25:142
300472520,2sleep20-21swapper/221:25:132
30090995121,4cyclictest33-21ksoftirqd/222:30:222
139391510,1ptp4l401ktimersoftd/321:39:213
30090994920,4cyclictest33-21ksoftirqd/223:37:012
30090994920,4cyclictest33-21ksoftirqd/220:55:012
30090994919,4cyclictest33-21ksoftirqd/221:10:192
30090994918,4cyclictest33-21ksoftirqd/222:00:182
30090994818,4cyclictest33-21ksoftirqd/219:30:172
30090994817,4cyclictest33-21ksoftirqd/219:45:502
30090994811,6cyclictest33-21ksoftirqd/219:55:002
30090994811,4cyclictest33-21ksoftirqd/220:00:252
30090994719,3cyclictest33-21ksoftirqd/219:20:232
30090994717,3cyclictest33-21ksoftirqd/223:50:142
139391470,1ptp4l401ktimersoftd/300:38:293
30090994618,3cyclictest33-21ksoftirqd/220:35:002
30090994616,4cyclictest33-21ksoftirqd/223:25:542
30090994616,4cyclictest33-21ksoftirqd/219:15:102
30090994518,3cyclictest33-21ksoftirqd/223:45:012
30090994517,4cyclictest33-21ksoftirqd/200:07:142
30090994517,3cyclictest33-21ksoftirqd/222:55:212
30090994515,4cyclictest33-21ksoftirqd/200:40:012
30090994512,6cyclictest33-21ksoftirqd/220:20:262
30090994511,4cyclictest33-21ksoftirqd/200:25:162
30090994511,4cyclictest33-21ksoftirqd/200:25:162
30091994436,6cyclictest41-21ksoftirqd/320:40:003
30090994438,3cyclictest33-21ksoftirqd/221:20:002
30090994415,4cyclictest33-21ksoftirqd/220:15:172
30090994413,4cyclictest33-21ksoftirqd/222:10:152
30090994410,4cyclictest33-21ksoftirqd/219:35:192
30090994410,3cyclictest33-21ksoftirqd/221:30:232
139391440,1ptp4l401ktimersoftd/322:29:553
139391440,0ptp4l401ktimersoftd/322:15:143
30091994338,3cyclictest41-21ksoftirqd/323:20:003
30091994338,3cyclictest41-21ksoftirqd/323:19:593
30090994337,3cyclictest33-21ksoftirqd/200:00:012
30090994328,12cyclictest33-21ksoftirqd/200:10:132
30090994310,4cyclictest33-21ksoftirqd/219:25:142
139391430,0ptp4l401ktimersoftd/320:14:223
139391430,0ptp4l401ktimersoftd/319:32:433
139391430,0ptp4l401ktimersoftd/319:18:343
3009099427,6cyclictest33-21ksoftirqd/200:25:002
3009099427,2cyclictest121rcu_preempt22:05:182
30090994237,3cyclictest33-21ksoftirqd/221:45:002
30090994237,3cyclictest33-21ksoftirqd/220:00:002
139391420,0ptp4l401ktimersoftd/323:58:593
139391420,0ptp4l401ktimersoftd/322:58:423
139391420,0ptp4l401ktimersoftd/322:01:293
30090994136,3cyclictest33-21ksoftirqd/221:05:002
30090994135,3cyclictest33-21ksoftirqd/219:45:012
30090994135,3cyclictest33-21ksoftirqd/219:45:012
30090994133,2cyclictest33-21ksoftirqd/221:50:222
3009099410,5cyclictest33-21ksoftirqd/220:05:212
139391410,0ptp4l401ktimersoftd/320:15:313
3009099407,4cyclictest33-21ksoftirqd/223:16:202
3009099407,4cyclictest33-21ksoftirqd/223:16:202
30090994036,2cyclictest321ktimersoftd/222:35:162
30090994035,2cyclictest33-21ksoftirqd/221:40:002
30090994029,9cyclictest33-21ksoftirqd/222:25:272
30090994010,5cyclictest33-21ksoftirqd/223:10:142
139391400,1ptp4l401ktimersoftd/300:01:393
139391400,0ptp4l401ktimersoftd/322:20:153
3009099394,3cyclictest33-21ksoftirqd/200:15:182
3009099394,2cyclictest121rcu_preempt22:15:012
3009099393,3cyclictest121rcu_preempt20:40:252
30090993933,3cyclictest33-21ksoftirqd/223:20:272
3009099392,2cyclictest121rcu_preempt21:00:002
30090993912,3cyclictest33-21ksoftirqd/220:50:002
3009099384,3cyclictest121rcu_preempt00:00:142
30090993834,2cyclictest33-21ksoftirqd/222:00:002
30090993834,2cyclictest33-21ksoftirqd/200:35:012
30090993833,3cyclictest33-21ksoftirqd/223:05:002
30089993832,4cyclictest25-21ksoftirqd/123:20:451
57898370,5rtkit-daemon16094-21/usr/sbin/munin00:15:233
3009099379,9cyclictest33-21ksoftirqd/223:30:262
30090993731,3cyclictest33-21ksoftirqd/220:39:592
30091993630,3cyclictest41-21ksoftirqd/323:05:233
3009099365,3cyclictest33-21ksoftirqd/223:05:122
30089993630,4cyclictest25-21ksoftirqd/122:10:541
30089993630,4cyclictest25-21ksoftirqd/121:55:081
30089993630,4cyclictest25-21ksoftirqd/120:50:381
30089993630,4cyclictest25-21ksoftirqd/120:10:101
30089993630,4cyclictest25-21ksoftirqd/119:18:351
30089993630,4cyclictest25-21ksoftirqd/119:12:571
30089993616,19cyclictest0-21swapper/122:31:231
30088993629,5cyclictest9-21ksoftirqd/022:36:230
30091993530,3cyclictest41-21ksoftirqd/319:25:123
30091993530,3cyclictest41-21ksoftirqd/319:25:013
30091993529,4cyclictest41-21ksoftirqd/322:12:403
30091993529,4cyclictest41-21ksoftirqd/320:49:553
3009199351,31cyclictest4539-21kworker/3:022:00:003
30090993531,2cyclictest33-21ksoftirqd/222:50:232
30090993530,2cyclictest33-21ksoftirqd/222:20:192
30089993530,3cyclictest25-21ksoftirqd/122:26:581
30089993529,4cyclictest25-21ksoftirqd/120:35:061
30089993529,4cyclictest25-21ksoftirqd/120:00:481
30089993528,4cyclictest25-21ksoftirqd/123:59:241
30088993530,3cyclictest9-21ksoftirqd/023:58:590
30088993529,4cyclictest9-21ksoftirqd/020:44:310
30088993529,4cyclictest9-21ksoftirqd/019:30:570
30091993430,2cyclictest41-21ksoftirqd/300:30:193
30091993428,4cyclictest41-21ksoftirqd/322:49:063
30091993428,4cyclictest41-21ksoftirqd/322:44:053
30091993428,4cyclictest41-21ksoftirqd/319:56:173
30091993427,5cyclictest41-21ksoftirqd/300:25:543
30091993427,5cyclictest41-21ksoftirqd/300:25:533
30089993429,3cyclictest25-21ksoftirqd/120:09:011
30089993428,4cyclictest25-21ksoftirqd/123:09:301
30089993428,4cyclictest25-21ksoftirqd/122:54:581
30089993428,4cyclictest25-21ksoftirqd/121:54:121
30089993428,4cyclictest25-21ksoftirqd/119:59:561
30089993428,4cyclictest25-21ksoftirqd/119:48:521
30089993428,4cyclictest25-21ksoftirqd/100:28:531
30089993428,4cyclictest25-21ksoftirqd/100:28:521
30089993413,3cyclictest29686-21sed21:25:001
30088993429,3cyclictest9-21ksoftirqd/000:13:380
30088993428,4cyclictest9-21ksoftirqd/023:28:590
30088993428,4cyclictest9-21ksoftirqd/022:20:390
30088993428,4cyclictest9-21ksoftirqd/022:12:080
30088993428,4cyclictest9-21ksoftirqd/021:07:290
3008899340,2cyclictest121rcu_preempt00:08:360
139391340,9ptp4l0-21swapper/320:50:233
30091993329,3cyclictest41-21ksoftirqd/322:30:143
30091993329,2cyclictest41-21ksoftirqd/322:35:453
30091993328,3cyclictest41-21ksoftirqd/323:23:293
30091993327,3cyclictest41-21ksoftirqd/323:42:273
30091993327,3cyclictest41-21ksoftirqd/321:41:393
30089993328,3cyclictest25-21ksoftirqd/123:40:591
30089993328,3cyclictest25-21ksoftirqd/120:47:031
30089993327,4cyclictest25-21ksoftirqd/122:41:501
30089993327,4cyclictest25-21ksoftirqd/121:29:411
30089993327,4cyclictest25-21ksoftirqd/121:29:411
30089993314,3cyclictest24264-21sshd00:33:361
30088993327,4cyclictest9-21ksoftirqd/023:19:240
30088993327,4cyclictest9-21ksoftirqd/023:19:240
30088993327,4cyclictest9-21ksoftirqd/021:21:050
30088993327,4cyclictest9-21ksoftirqd/019:10:490
30091993227,3cyclictest41-21ksoftirqd/323:47:283
30091993227,3cyclictest41-21ksoftirqd/320:30:193
30091993227,3cyclictest41-21ksoftirqd/320:20:103
30091993227,3cyclictest41-21ksoftirqd/320:05:423
30091993227,3cyclictest41-21ksoftirqd/300:10:143
30091993226,4cyclictest41-21ksoftirqd/321:34:123
30091993226,4cyclictest41-21ksoftirqd/319:50:353
30089993227,3cyclictest25-21ksoftirqd/122:02:581
30089993227,3cyclictest25-21ksoftirqd/120:58:351
30089993227,3cyclictest25-21ksoftirqd/119:53:331
30089993226,4cyclictest25-21ksoftirqd/123:18:251
30089993226,4cyclictest25-21ksoftirqd/123:18:241
30089993226,4cyclictest25-21ksoftirqd/123:04:361
30089993226,4cyclictest25-21ksoftirqd/121:47:581
30089993226,4cyclictest25-21ksoftirqd/121:40:091
30089993226,4cyclictest25-21ksoftirqd/121:19:221
30089993226,4cyclictest25-21ksoftirqd/120:22:171
30089993226,4cyclictest25-21ksoftirqd/119:43:461
30089993226,4cyclictest25-21ksoftirqd/119:43:461
30089993225,4cyclictest25-21ksoftirqd/121:32:581
30088993227,3cyclictest9-21ksoftirqd/021:50:460
30088993226,4cyclictest9-21ksoftirqd/022:48:070
30088993226,4cyclictest9-21ksoftirqd/022:06:150
30088993226,4cyclictest9-21ksoftirqd/022:03:540
30088993226,4cyclictest9-21ksoftirqd/019:36:150
30088993226,4cyclictest9-21ksoftirqd/000:36:100
30091993126,3cyclictest41-21ksoftirqd/323:54:263
30091993126,3cyclictest41-21ksoftirqd/322:50:503
30091993126,3cyclictest41-21ksoftirqd/319:43:013
30091993126,3cyclictest41-21ksoftirqd/319:43:013
30091993126,3cyclictest41-21ksoftirqd/319:35:143
30091993126,3cyclictest139391ptp4l20:25:173
30091993125,4cyclictest41-21ksoftirqd/321:17:313
30089993126,3cyclictest25-21ksoftirqd/123:47:201
30089993126,3cyclictest25-21ksoftirqd/122:38:281
30089993126,3cyclictest25-21ksoftirqd/121:37:551
30089993125,4cyclictest25-21ksoftirqd/123:33:411
30089993125,4cyclictest25-21ksoftirqd/119:36:001
30089993125,4cyclictest25-21ksoftirqd/100:07:311
30089993112,2cyclictest2993-21fschecks_time19:20:171
30088993126,3cyclictest9-21ksoftirqd/023:45:270
30088993125,4cyclictest9-21ksoftirqd/023:31:070
30088993125,4cyclictest9-21ksoftirqd/022:40:570
30088993125,4cyclictest9-21ksoftirqd/020:45:270
30088993125,4cyclictest9-21ksoftirqd/019:40:170
30088993125,4cyclictest9-21ksoftirqd/019:40:170
30088993125,4cyclictest9-21ksoftirqd/019:27:160
139391310,0ptp4l401ktimersoftd/321:09:423
30091993026,3cyclictest41-21ksoftirqd/321:20:303
30091993025,3cyclictest41-21ksoftirqd/323:26:413
30091993025,3cyclictest41-21ksoftirqd/321:00:003
30091993025,3cyclictest41-21ksoftirqd/320:43:293
30091993025,3cyclictest41-21ksoftirqd/319:45:163
30091993025,3cyclictest41-21ksoftirqd/300:21:063
30091993025,3cyclictest41-21ksoftirqd/300:06:013
30091993024,4cyclictest41-21ksoftirqd/323:11:333
30089993025,3cyclictest25-21ksoftirqd/120:33:461
30089993025,3cyclictest25-21ksoftirqd/119:28:311
30089993024,4cyclictest25-21ksoftirqd/100:00:571
30089993024,3cyclictest25-21ksoftirqd/122:57:381
30088993025,3cyclictest9-21ksoftirqd/023:01:530
30088993025,3cyclictest9-21ksoftirqd/022:30:120
30088993025,3cyclictest9-21ksoftirqd/020:54:390
30088993024,4cyclictest9-21ksoftirqd/022:19:140
30088993024,4cyclictest9-21ksoftirqd/021:38:340
30088993024,4cyclictest9-21ksoftirqd/000:23:020
3008899300,2cyclictest121rcu_preempt21:45:140
139391300,0ptp4l401ktimersoftd/321:11:333
30091992924,3cyclictest41-21ksoftirqd/323:35:133
30091992924,3cyclictest41-21ksoftirqd/323:04:073
30091992924,3cyclictest41-21ksoftirqd/322:06:373
30091992924,3cyclictest41-21ksoftirqd/321:25:183
30091992924,3cyclictest41-21ksoftirqd/321:25:183
30089992923,4cyclictest25-21ksoftirqd/100:36:271
30089992923,3cyclictest25-21ksoftirqd/123:53:351
30088992924,3cyclictest9-21ksoftirqd/020:20:110
30088992924,3cyclictest9-21ksoftirqd/020:09:290
30088992924,3cyclictest9-21ksoftirqd/000:04:170
30088992923,4cyclictest9-21ksoftirqd/022:59:220
30088992923,4cyclictest9-21ksoftirqd/021:57:570
30088992923,4cyclictest9-21ksoftirqd/021:41:070
30088992923,4cyclictest9-21ksoftirqd/020:37:010
139391290,0ptp4l401ktimersoftd/321:00:253
30089992822,4cyclictest25-21ksoftirqd/122:21:481
30089992822,4cyclictest25-21ksoftirqd/120:25:341
30089992810,4cyclictest19222-21proc_pri21:00:261
30088992823,3cyclictest9-21ksoftirqd/023:54:210
30088992823,3cyclictest9-21ksoftirqd/023:24:300
30088992823,3cyclictest9-21ksoftirqd/021:12:550
30088992823,3cyclictest9-21ksoftirqd/020:56:480
30088992822,4cyclictest9-21ksoftirqd/000:30:280
139391280,0ptp4l401ktimersoftd/320:02:453
30089992722,3cyclictest25-21ksoftirqd/122:49:521
30089992722,3cyclictest25-21ksoftirqd/100:10:081
30089992721,4cyclictest25-21ksoftirqd/123:35:251
30089992721,4cyclictest25-21ksoftirqd/121:13:371
30089992721,4cyclictest25-21ksoftirqd/121:07:111
30088992722,3cyclictest9-21ksoftirqd/022:50:070
30088992722,3cyclictest9-21ksoftirqd/022:26:000
30088992722,3cyclictest9-21ksoftirqd/021:25:130
30088992722,3cyclictest9-21ksoftirqd/021:25:130
30088992722,3cyclictest9-21ksoftirqd/020:02:020
30088992722,3cyclictest9-21ksoftirqd/019:59:360
30088992721,4cyclictest9-21ksoftirqd/023:07:040
30088992721,4cyclictest9-21ksoftirqd/019:17:550
262972270,4sleep09-21ksoftirqd/021:15:240
30089992621,3cyclictest25-21ksoftirqd/122:17:001
30088992621,3cyclictest9-21ksoftirqd/019:51:230
30088992620,4cyclictest9-21ksoftirqd/023:13:380
30088992620,4cyclictest9-21ksoftirqd/020:14:420
30088992620,4cyclictest9-21ksoftirqd/000:26:110
30088992620,4cyclictest9-21ksoftirqd/000:26:110
30088992520,3cyclictest9-21ksoftirqd/020:18:120
30088992519,4cyclictest9-21ksoftirqd/023:43:310
30088992519,4cyclictest9-21ksoftirqd/020:34:440
30089992419,3cyclictest17043-21cron00:20:001
30089992318,3cyclictest25-21ksoftirqd/123:14:551
30089992318,3cyclictest25-21ksoftirqd/120:15:021
30088992316,4cyclictest9-21ksoftirqd/019:20:100
30088992216,4cyclictest9-21ksoftirqd/021:30:040
30088992216,4cyclictest9-21ksoftirqd/020:28:030
30088992216,4cyclictest9-21ksoftirqd/019:45:430
30088992116,3cyclictest9-21ksoftirqd/000:18:410
30088991914,3cyclictest19410-21swap21:00:280
30089991712,3cyclictest8888-21forks20:40:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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