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2026-04-16 - 01:54
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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 all highest latencies:
System rackdslot2.osadl.org (updated Wed Apr 15, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289802233168,22sleep30-21swapper/307:08:583
288252228164,22sleep00-21swapper/007:07:010
288392205172,22sleep20-21swapper/207:07:112
287342204171,22sleep10-21swapper/107:05:511
2260321750,6sleep02935299cyclictest09:10:170
890321560,6sleep12935399cyclictest07:35:111
2349421500,6sleep12935399cyclictest11:25:251
1790821280,4sleep22935499cyclictest10:08:042
139291650,1ptp4l401ktimersoftd/310:40:153
139291640,1ptp4l401ktimersoftd/310:30:163
139291610,1ptp4l401ktimersoftd/311:02:443
145552600,4sleep3217-21systemd-journal08:54:593
305132590,1sleep00-21swapper/010:35:150
29354995720,7cyclictest33-21ksoftirqd/210:58:572
2935499545,7cyclictest22183-21grep12:30:252
29354995426,9cyclictest33-21ksoftirqd/207:50:122
29354995320,9cyclictest33-21ksoftirqd/207:45:182
29354995229,10cyclictest33-21ksoftirqd/210:30:252
41298500,19rtkit-daemon20198-21taskset10:11:221
2935499502,7cyclictest25553-21/usr/sbin/munin08:10:252
2935499500,5cyclictest0-21swapper/211:55:252
2935499498,5cyclictest33-21ksoftirqd/211:16:582
2935499491,44cyclictest25257-21dump-pmu-power10:24:592
29355994733,12cyclictest41-21ksoftirqd/311:25:113
29354994723,4cyclictest33-21ksoftirqd/209:45:322
29354994528,10cyclictest33-21ksoftirqd/209:35:002
2935499444,7cyclictest4863-21sed09:40:172
29354994337,3cyclictest217-21systemd-journal11:52:382
139291430,0ptp4l401ktimersoftd/312:21:113
139291430,0ptp4l401ktimersoftd/310:38:393
2935499424,9cyclictest33-21ksoftirqd/212:10:112
29354994225,10cyclictest33-21ksoftirqd/211:30:242
29354994120,8cyclictest33-21ksoftirqd/210:25:282
29354994114,9cyclictest33-21ksoftirqd/212:20:172
29353994135,3cyclictest21653-21cron11:25:001
139291410,0ptp4l401ktimersoftd/309:25:133
139291410,0ptp4l401ktimersoftd/308:15:103
2935499405,4cyclictest33-21ksoftirqd/211:03:492
29354994022,11cyclictest33-21ksoftirqd/212:15:172
29353994036,3cyclictest25-21ksoftirqd/109:35:011
29353994035,3cyclictest25-21ksoftirqd/108:35:011
139291400,0ptp4l401ktimersoftd/312:15:153
29355993935,2cyclictest26391-21cron11:35:013
29355993933,4cyclictest41-21ksoftirqd/311:59:343
29354993933,4cyclictest33-21ksoftirqd/207:23:412
29353993935,2cyclictest25-21ksoftirqd/110:35:001
29353993934,3cyclictest25-21ksoftirqd/111:45:191
29352993933,4cyclictest18136-21cron07:54:590
29355993833,3cyclictest41-21ksoftirqd/312:05:113
29355993832,4cyclictest41-21ksoftirqd/312:31:513
29355993832,4cyclictest41-21ksoftirqd/312:00:463
29355993832,4cyclictest41-21ksoftirqd/311:46:303
29355993832,4cyclictest41-21ksoftirqd/308:09:263
29355993832,4cyclictest41-21ksoftirqd/307:47:013
29355993832,4cyclictest41-21ksoftirqd/307:32:033
29355993832,4cyclictest41-21ksoftirqd/307:28:543
29355993832,4cyclictest41-21ksoftirqd/307:28:543
29355993831,5cyclictest41-21ksoftirqd/307:37:353
2935499384,5cyclictest33-21ksoftirqd/209:35:242
29354993832,4cyclictest33-21ksoftirqd/207:17:152
2935499382,3cyclictest33-21ksoftirqd/207:31:102
29354993820,8cyclictest33-21ksoftirqd/211:20:482
29353993834,2cyclictest25-21ksoftirqd/108:54:591
29353993833,3cyclictest25-21ksoftirqd/111:18:171
29353993833,3cyclictest25-21ksoftirqd/109:05:011
2935399382,3cyclictest121rcu_preempt08:45:191
29352993833,3cyclictest9-21ksoftirqd/011:40:000
29352993833,3cyclictest9-21ksoftirqd/011:20:000
29355993731,4cyclictest41-21ksoftirqd/312:29:503
29355993731,4cyclictest41-21ksoftirqd/311:21:143
29355993731,4cyclictest41-21ksoftirqd/309:56:373
29355993731,4cyclictest41-21ksoftirqd/309:56:373
29355993731,4cyclictest41-21ksoftirqd/309:09:533
2935499377,4cyclictest33-21ksoftirqd/210:40:252
2935499374,6cyclictest33-21ksoftirqd/208:50:312
29354993732,3cyclictest33-21ksoftirqd/208:15:122
29354993731,4cyclictest33-21ksoftirqd/209:00:002
29353993733,3cyclictest25-21ksoftirqd/111:15:011
29353993733,2cyclictest25-21ksoftirqd/109:49:591
29353993732,3cyclictest25-21ksoftirqd/112:15:181
29353993732,3cyclictest25-21ksoftirqd/112:00:011
29353993732,3cyclictest25-21ksoftirqd/110:35:251
29353993732,3cyclictest25-21ksoftirqd/108:40:011
29353993731,4cyclictest25-21ksoftirqd/109:21:131
29352993732,3cyclictest7350-21cron10:55:000
29352993731,4cyclictest9-21ksoftirqd/012:07:360
29352993731,4cyclictest9-21ksoftirqd/009:42:540
29355993630,4cyclictest41-21ksoftirqd/311:14:443
29355993630,4cyclictest41-21ksoftirqd/310:25:543
29355993630,4cyclictest41-21ksoftirqd/310:20:333
29355993630,4cyclictest41-21ksoftirqd/309:39:133
29355993630,4cyclictest41-21ksoftirqd/309:02:183
29355993630,4cyclictest41-21ksoftirqd/308:45:043
29355993630,4cyclictest41-21ksoftirqd/307:59:443
29355993629,4cyclictest41-21ksoftirqd/309:49:153
2935499364,5cyclictest33-21ksoftirqd/209:05:062
29354993620,9cyclictest33-21ksoftirqd/208:45:242
29354993619,10cyclictest33-21ksoftirqd/208:00:152
2935399366,3cyclictest25-21ksoftirqd/108:00:141
2935399363,7cyclictest25-21ksoftirqd/107:20:001
29353993632,3cyclictest25-21ksoftirqd/109:05:271
29353993632,2cyclictest25-21ksoftirqd/110:25:181
29353993632,2cyclictest25-21ksoftirqd/107:25:121
29353993632,2cyclictest25-21ksoftirqd/107:25:121
29353993631,3cyclictest25-21ksoftirqd/111:00:151
29353993631,3cyclictest25-21ksoftirqd/108:30:011
29353993630,4cyclictest25-21ksoftirqd/112:23:261
29353993630,4cyclictest25-21ksoftirqd/112:14:111
29353993630,4cyclictest25-21ksoftirqd/109:29:191
29353993630,4cyclictest25-21ksoftirqd/108:58:351
29353993629,5cyclictest25-21ksoftirqd/110:43:051
29352993631,3cyclictest9-21ksoftirqd/009:20:000
29352993630,4cyclictest9-21ksoftirqd/007:36:430
29352993630,4cyclictest9-21ksoftirqd/007:16:120
29355993530,3cyclictest41-21ksoftirqd/311:41:413
29355993529,4cyclictest41-21ksoftirqd/310:00:423
29355993529,4cyclictest41-21ksoftirqd/309:44:513
29355993529,4cyclictest41-21ksoftirqd/309:17:143
29355993529,4cyclictest41-21ksoftirqd/308:31:383
29355993529,4cyclictest41-21ksoftirqd/308:02:003
29355993529,4cyclictest41-21ksoftirqd/307:51:113
29354993532,2cyclictest33-21ksoftirqd/209:50:252
29354993532,2cyclictest311rcuc/210:54:022
29354993532,2cyclictest311rcuc/210:39:192
29354993532,2cyclictest311rcuc/210:17:152
29354993530,3cyclictest33-21ksoftirqd/209:15:122
29354993530,3cyclictest33-21ksoftirqd/208:25:002
29354993529,4cyclictest33-21ksoftirqd/207:29:512
29354993529,4cyclictest33-21ksoftirqd/207:29:512
2935499352,5cyclictest33-21ksoftirqd/211:08:242
29353993531,3cyclictest25-21ksoftirqd/110:55:181
29353993530,3cyclictest25-21ksoftirqd/112:05:011
29353993530,3cyclictest25-21ksoftirqd/111:50:271
29353993530,3cyclictest25-21ksoftirqd/111:05:111
29353993530,3cyclictest25-21ksoftirqd/110:10:011
29353993530,3cyclictest25-21ksoftirqd/110:00:001
29353993530,3cyclictest25-21ksoftirqd/109:50:201
29353993530,3cyclictest25-21ksoftirqd/108:20:261
29353993529,4cyclictest25-21ksoftirqd/107:15:001
29352993529,4cyclictest9-21ksoftirqd/008:38:440
29355993429,3cyclictest41-21ksoftirqd/311:38:263
29355993429,3cyclictest41-21ksoftirqd/311:15:573
29355993429,3cyclictest41-21ksoftirqd/310:57:123
29355993428,4cyclictest41-21ksoftirqd/312:38:053
29355993428,4cyclictest41-21ksoftirqd/311:07:463
29355993428,4cyclictest41-21ksoftirqd/308:57:413
2935499347,7cyclictest33-21ksoftirqd/211:35:172
29354993430,3cyclictest33-21ksoftirqd/207:10:222
29354993429,3cyclictest33-21ksoftirqd/212:29:342
29354993429,3cyclictest33-21ksoftirqd/211:10:182
29354993429,3cyclictest33-21ksoftirqd/207:37:362
29354993428,4cyclictest33-21ksoftirqd/208:35:092
29354993428,4cyclictest33-21ksoftirqd/208:26:462
2935399345,3cyclictest25-21ksoftirqd/107:20:181
2935399343,3cyclictest121rcu_preempt12:30:231
29353993429,3cyclictest25-21ksoftirqd/112:05:191
29353993429,3cyclictest25-21ksoftirqd/110:52:531
29353993429,3cyclictest25-21ksoftirqd/110:20:221
29353993429,3cyclictest25-21ksoftirqd/109:40:061
29353993429,3cyclictest25-21ksoftirqd/107:35:001
29353993428,4cyclictest25-21ksoftirqd/110:19:431
29353993428,4cyclictest25-21ksoftirqd/109:10:591
29353993428,4cyclictest25-21ksoftirqd/108:08:561
29353993423,9cyclictest25-21ksoftirqd/112:25:251
2935399340,3cyclictest121rcu_preempt09:15:141
29352993430,2cyclictest9-21ksoftirqd/010:19:590
29352993429,3cyclictest9-21ksoftirqd/012:12:500
29352993429,3cyclictest9-21ksoftirqd/011:45:180
29352993429,3cyclictest9-21ksoftirqd/010:02:490
29352993429,2cyclictest9-21ksoftirqd/008:45:130
29352993428,4cyclictest9-21ksoftirqd/012:19:360
29352993428,4cyclictest9-21ksoftirqd/012:01:550
29352993428,4cyclictest9-21ksoftirqd/011:52:520
29352993428,4cyclictest9-21ksoftirqd/010:09:380
29352993428,4cyclictest9-21ksoftirqd/009:55:310
29352993428,4cyclictest9-21ksoftirqd/009:55:310
29352993428,4cyclictest9-21ksoftirqd/009:47:560
29352993428,4cyclictest9-21ksoftirqd/009:31:440
29352993428,4cyclictest9-21ksoftirqd/008:09:440
29355993327,4cyclictest41-21ksoftirqd/309:53:123
29355993327,4cyclictest41-21ksoftirqd/309:13:373
29355993326,4cyclictest41-21ksoftirqd/310:10:343
2935499336,5cyclictest33-21ksoftirqd/209:00:142
29354993328,3cyclictest33-21ksoftirqd/211:28:152
29354993327,4cyclictest33-21ksoftirqd/212:02:252
29354993327,4cyclictest33-21ksoftirqd/209:26:332
2935499331,5cyclictest33-21ksoftirqd/207:40:242
2935399334,3cyclictest25-21ksoftirqd/110:45:271
29353993330,2cyclictest25-21ksoftirqd/108:44:591
29353993329,2cyclictest25-21ksoftirqd/111:30:151
29353993328,3cyclictest25-21ksoftirqd/112:40:001
29353993328,3cyclictest25-21ksoftirqd/111:35:191
29353993327,4cyclictest25-21ksoftirqd/109:55:511
29353993327,4cyclictest25-21ksoftirqd/109:55:511
29353993327,4cyclictest25-21ksoftirqd/107:49:031
29353993327,4cyclictest25-21ksoftirqd/107:43:091
29352993329,2cyclictest9-21ksoftirqd/011:10:000
29352993328,3cyclictest9-21ksoftirqd/011:03:020
29352993328,3cyclictest9-21ksoftirqd/010:45:000
29352993328,3cyclictest9-21ksoftirqd/009:30:000
29352993328,3cyclictest9-21ksoftirqd/009:00:010
29352993328,3cyclictest9-21ksoftirqd/008:40:590
29352993328,3cyclictest9-21ksoftirqd/008:30:290
29352993327,4cyclictest9-21ksoftirqd/011:40:450
29352993327,4cyclictest9-21ksoftirqd/011:20:100
29352993327,4cyclictest9-21ksoftirqd/007:47:250
29352993327,4cyclictest9-21ksoftirqd/007:34:220
29352993327,4cyclictest9-21ksoftirqd/007:26:560
29352993327,4cyclictest9-21ksoftirqd/007:26:560
29352993327,3cyclictest9-21ksoftirqd/008:00:130
29355993227,3cyclictest41-21ksoftirqd/310:19:333
29355993227,3cyclictest41-21ksoftirqd/307:16:593
29355993226,4cyclictest41-21ksoftirqd/309:24:043
29355993226,4cyclictest41-21ksoftirqd/308:29:293
29355993224,5cyclictest41-21ksoftirqd/308:40:013
2935499324,7cyclictest33-21ksoftirqd/210:45:142
29354993226,4cyclictest33-21ksoftirqd/209:25:002
29354993214,8cyclictest33-21ksoftirqd/208:05:042
2935499320,5cyclictest33-21ksoftirqd/208:33:222
2935399325,2cyclictest121rcu_preempt08:10:121
29353993227,3cyclictest25-21ksoftirqd/107:58:491
29353993227,2cyclictest25-21ksoftirqd/108:15:011
29352993228,2cyclictest9-21ksoftirqd/010:20:160
29352993227,3cyclictest9-21ksoftirqd/011:30:000
29352993227,3cyclictest9-21ksoftirqd/010:33:420
29352993227,3cyclictest9-21ksoftirqd/010:10:100
29352993227,3cyclictest9-21ksoftirqd/009:08:240
29352993227,3cyclictest9-21ksoftirqd/007:45:000
29352993227,2cyclictest9-21ksoftirqd/007:20:210
29352993226,4cyclictest9-21ksoftirqd/011:56:450
29352993226,4cyclictest9-21ksoftirqd/010:26:030
29352993225,4cyclictest9-21ksoftirqd/009:37:010
29352993224,2cyclictest9-21ksoftirqd/010:55:200
29355993126,3cyclictest41-21ksoftirqd/307:42:563
29355993126,3cyclictest41-21ksoftirqd/307:12:433
29355993125,4cyclictest41-21ksoftirqd/310:47:413
29355993125,3cyclictest41-21ksoftirqd/309:30:243
29354993127,3cyclictest33-21ksoftirqd/211:45:152
29354993127,3cyclictest33-21ksoftirqd/210:10:132
29354993127,3cyclictest33-21ksoftirqd/210:00:112
29354993127,3cyclictest33-21ksoftirqd/209:13:112
29353993127,3cyclictest25-21ksoftirqd/109:40:011
29353993126,3cyclictest25-21ksoftirqd/111:40:271
29352993126,3cyclictest9-21ksoftirqd/012:25:280
29352993126,3cyclictest9-21ksoftirqd/011:30:420
29352993126,3cyclictest9-21ksoftirqd/010:45:190
29352993126,3cyclictest9-21ksoftirqd/009:23:210
29352993126,3cyclictest9-21ksoftirqd/008:25:190
29352993125,4cyclictest9-21ksoftirqd/009:52:220
29352993125,4cyclictest9-21ksoftirqd/008:18:230
29355993025,3cyclictest41-21ksoftirqd/310:05:143
29355993025,3cyclictest41-21ksoftirqd/308:22:243
29355993025,3cyclictest41-21ksoftirqd/307:24:183
29354993027,2cyclictest33-21ksoftirqd/209:55:212
29354993027,2cyclictest33-21ksoftirqd/209:55:212
29354993023,4cyclictest33-21ksoftirqd/208:42:082
29354993014,9cyclictest33-21ksoftirqd/212:05:182
29353993025,3cyclictest25-21ksoftirqd/107:54:401
29352993025,3cyclictest9-21ksoftirqd/012:36:050
29352993025,3cyclictest9-21ksoftirqd/009:01:060
29352993024,3cyclictest9-21ksoftirqd/012:30:070
29355992924,3cyclictest41-21ksoftirqd/312:14:363
29355992924,3cyclictest41-21ksoftirqd/311:53:093
29355992923,4cyclictest41-21ksoftirqd/310:51:183
29354992914,8cyclictest33-21ksoftirqd/211:40:282
29352992924,3cyclictest9-21ksoftirqd/012:22:180
29352992924,3cyclictest9-21ksoftirqd/007:57:200
29352992923,4cyclictest9-21ksoftirqd/008:50:560
29352992923,4cyclictest9-21ksoftirqd/008:14:380
29352992923,3cyclictest9-21ksoftirqd/008:20:190
29352992824,2cyclictest9-21ksoftirqd/007:10:180
29355992721,4cyclictest41-21ksoftirqd/308:10:383
29354992711,8cyclictest33-21ksoftirqd/212:35:312
29352992722,3cyclictest9-21ksoftirqd/011:10:190
29354992622,3cyclictest33-21ksoftirqd/207:55:242
139291240,0ptp4l401ktimersoftd/308:40:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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