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2026-07-28 - 16:36
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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 rackdslot4.osadl.org (updated Tue Jul 28, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288592205170,23sleep30-21swapper/307:06:053
291062203170,22sleep00-21swapper/007:09:120
288312202169,22sleep20-21swapper/207:05:442
291652201167,23sleep10-21swapper/107:09:571
138591164124,14phc2sys0-21swapper/307:10:013
138591164124,14phc2sys0-21swapper/307:10:013
116212830,5sleep2223-21systemd-journal09:50:002
106352710,3sleep30-21swapper/308:40:253
29464997023,7cyclictest41-21ksoftirqd/311:52:073
224012650,4sleep2321ktimersoftd/210:10:182
20912580,6sleep12946299cyclictest09:30:131
29464995620,4cyclictest41-21ksoftirqd/311:50:003
29461995511,16cyclictest16718-21/usr/sbin/munin11:05:250
29461995511,16cyclictest16718-21/usr/sbin/munin11:05:250
29464995323,4cyclictest41-21ksoftirqd/311:15:143
307482520,4sleep230750-21needreboot07:10:212
307482520,4sleep230750-21needreboot07:10:212
2946199520,3cyclictest31294-21runrttasks10:29:100
201222520,2sleep30-21swapper/307:55:193
50772510,2sleep30-21swapper/309:35:203
138491510,0ptp4l401ktimersoftd/309:31:053
29464994917,5cyclictest41-21ksoftirqd/311:20:223
29464994917,4cyclictest41-21ksoftirqd/310:30:143
29464994913,8cyclictest41-21ksoftirqd/309:55:143
29464994818,4cyclictest41-21ksoftirqd/312:15:213
29464994816,4cyclictest41-21ksoftirqd/310:35:143
29464994716,8cyclictest41-21ksoftirqd/308:20:103
2946199478,17cyclictest1303-21runrttasks07:16:370
29464994619,7cyclictest41-21ksoftirqd/307:15:143
29464994617,4cyclictest41-21ksoftirqd/310:15:013
29464994617,4cyclictest41-21ksoftirqd/309:40:243
29464994611,8cyclictest41-21ksoftirqd/308:45:273
29464994538,4cyclictest41-21ksoftirqd/312:30:003
29464994525,17cyclictest41-21ksoftirqd/312:35:013
29464994525,17cyclictest41-21ksoftirqd/312:35:003
29464994519,6cyclictest41-21ksoftirqd/312:20:183
29464994514,4cyclictest41-21ksoftirqd/308:35:003
29464994513,4cyclictest41-21ksoftirqd/310:50:143
29464994429,12cyclictest41-21ksoftirqd/307:25:013
29464994416,7cyclictest41-21ksoftirqd/309:10:003
29464994415,7cyclictest41-21ksoftirqd/309:45:193
29464994414,8cyclictest41-21ksoftirqd/311:30:003
29464994413,4cyclictest41-21ksoftirqd/310:29:593
2946499440,3cyclictest121rcu_preempt12:00:253
29462994431,4cyclictest25-21ksoftirqd/111:52:071
29464994315,7cyclictest41-21ksoftirqd/310:55:263
29464994314,3cyclictest41-21ksoftirqd/311:30:143
29464994314,3cyclictest41-21ksoftirqd/311:10:173
29464994313,4cyclictest41-21ksoftirqd/312:00:003
29464994313,4cyclictest41-21ksoftirqd/312:00:003
29464994312,7cyclictest41-21ksoftirqd/312:40:003
29464994312,7cyclictest41-21ksoftirqd/311:40:193
29463994337,3cyclictest1423-21cron10:35:002
29464994216,7cyclictest41-21ksoftirqd/310:40:143
29464994215,7cyclictest41-21ksoftirqd/311:10:013
29464994215,7cyclictest41-21ksoftirqd/311:10:013
2946499421,38cyclictest8963-21cron08:40:003
29464994213,3cyclictest41-21ksoftirqd/312:10:143
29464994210,3cyclictest41-21ksoftirqd/307:40:243
2946499420,3cyclictest121rcu_preempt09:15:003
138491420,0ptp4l401ktimersoftd/311:35:303
2946499419,8cyclictest41-21ksoftirqd/308:00:143
2946499419,7cyclictest41-21ksoftirqd/310:45:133
2946499418,4cyclictest41-21ksoftirqd/307:50:253
2946499411,4cyclictest41-21ksoftirqd/311:00:563
29464994112,4cyclictest41-21ksoftirqd/307:30:133
29463994135,3cyclictest33-21ksoftirqd/210:20:002
2946499409,7cyclictest41-21ksoftirqd/307:25:133
2946499406,4cyclictest41-21ksoftirqd/308:55:203
29464994015,6cyclictest41-21ksoftirqd/307:35:183
29464994013,7cyclictest41-21ksoftirqd/309:20:243
29464994011,7cyclictest41-21ksoftirqd/309:00:153
29464994011,6cyclictest41-21ksoftirqd/308:15:163
29464994010,3cyclictest41-21ksoftirqd/308:05:213
29462994036,3cyclictest25-21ksoftirqd/109:40:001
29461994012,17cyclictest24264-21/usr/sbin/munin08:05:210
2946499399,8cyclictest41-21ksoftirqd/308:25:193
2946499397,3cyclictest41-21ksoftirqd/310:20:143
29464993911,7cyclictest41-21ksoftirqd/309:25:143
29464993910,7cyclictest41-21ksoftirqd/310:00:163
29462993934,3cyclictest25-21ksoftirqd/107:50:001
2946499389,7cyclictest41-21ksoftirqd/309:15:213
29464993833,3cyclictest41-21ksoftirqd/307:50:003
29462993833,3cyclictest25-21ksoftirqd/110:59:591
29462993831,4cyclictest25-21ksoftirqd/107:34:391
2946199386,17cyclictest8313-21cat09:40:260
2946199380,3cyclictest6790-21seq07:29:570
29464993733,2cyclictest41-21ksoftirqd/310:15:143
2946499371,5cyclictest121rcu_preempt08:10:273
29463993731,4cyclictest33-21ksoftirqd/208:53:192
29463993731,4cyclictest33-21ksoftirqd/207:17:072
29463993730,4cyclictest33-21ksoftirqd/207:56:272
29462993733,3cyclictest25-21ksoftirqd/108:35:181
29462993732,3cyclictest25-21ksoftirqd/112:10:141
29462993732,3cyclictest25-21ksoftirqd/111:50:011
29462993732,3cyclictest25-21ksoftirqd/111:05:201
29462993732,3cyclictest25-21ksoftirqd/111:05:191
29462993732,3cyclictest25-21ksoftirqd/108:55:001
29462993730,5cyclictest25-21ksoftirqd/109:53:401
2946199373,3cyclictest6868-21/usr/sbin/munin10:45:180
29461993722,12cyclictest9-21ksoftirqd/008:35:110
29461993710,16cyclictest1303-21runrttasks09:18:190
29464993630,3cyclictest41-21ksoftirqd/312:05:273
29464993630,3cyclictest41-21ksoftirqd/309:50:143
29464993610,7cyclictest41-21ksoftirqd/310:05:153
29463993630,4cyclictest33-21ksoftirqd/210:39:592
29463993630,4cyclictest33-21ksoftirqd/210:08:462
29462993633,2cyclictest25-21ksoftirqd/107:20:001
29462993632,2cyclictest25-21ksoftirqd/110:15:011
29462993631,3cyclictest25-21ksoftirqd/111:20:181
29462993630,4cyclictest25-21ksoftirqd/112:28:371
29461993631,3cyclictest9-21ksoftirqd/009:45:110
29461993630,4cyclictest9-21ksoftirqd/012:10:510
29461993630,4cyclictest9-21ksoftirqd/009:57:150
2946499352,3cyclictest121rcu_preempt08:50:133
29463993530,3cyclictest33-21ksoftirqd/211:30:062
29463993529,4cyclictest33-21ksoftirqd/211:39:592
29463993529,4cyclictest33-21ksoftirqd/209:32:072
29463993529,4cyclictest33-21ksoftirqd/207:53:422
29463993529,3cyclictest33-21ksoftirqd/208:45:002
29463993528,4cyclictest33-21ksoftirqd/209:04:592
29462993530,3cyclictest25-21ksoftirqd/110:30:181
29462993529,4cyclictest25-21ksoftirqd/111:15:041
29462993529,4cyclictest25-21ksoftirqd/109:57:251
29462993529,4cyclictest25-21ksoftirqd/108:48:091
29462993528,4cyclictest25-21ksoftirqd/110:42:111
29462993528,4cyclictest25-21ksoftirqd/108:01:541
29462993525,9cyclictest25-21ksoftirqd/109:20:221
29461993529,4cyclictest9-21ksoftirqd/012:16:580
29461993529,4cyclictest9-21ksoftirqd/010:59:070
29461993529,4cyclictest9-21ksoftirqd/008:00:420
29461993529,4cyclictest9-21ksoftirqd/007:58:010
2946199350,3cyclictest31055-21runrttasks09:20:420
2946199350,3cyclictest28581-21runrttasks10:21:390
29463993428,4cyclictest33-21ksoftirqd/211:52:432
29463993428,4cyclictest33-21ksoftirqd/211:11:122
29463993428,4cyclictest33-21ksoftirqd/210:44:352
29463993428,4cyclictest33-21ksoftirqd/210:29:522
29463993428,4cyclictest33-21ksoftirqd/209:50:472
29463993428,4cyclictest33-21ksoftirqd/208:46:382
29463993428,4cyclictest33-21ksoftirqd/208:09:102
29463993428,4cyclictest33-21ksoftirqd/207:30:432
29463993427,4cyclictest33-21ksoftirqd/207:36:492
29462993428,4cyclictest25-21ksoftirqd/112:10:011
29462993428,4cyclictest25-21ksoftirqd/111:38:391
29462993428,4cyclictest25-21ksoftirqd/111:04:081
29462993428,4cyclictest25-21ksoftirqd/107:14:131
29462993428,4cyclictest25-21ksoftirqd/107:14:131
29462993427,5cyclictest25-21ksoftirqd/109:40:431
29462993427,4cyclictest25-21ksoftirqd/111:26:121
29462993422,9cyclictest25-21ksoftirqd/110:50:281
2946199348,22cyclictest31808-21expr10:30:140
29461993429,3cyclictest9-21ksoftirqd/010:38:290
29461993428,4cyclictest9-21ksoftirqd/012:37:280
29461993428,4cyclictest9-21ksoftirqd/011:22:170
29461993428,4cyclictest9-21ksoftirqd/011:19:010
29461993428,4cyclictest9-21ksoftirqd/007:31:170
2946199340,3cyclictest1475-21seq11:38:570
29463993328,3cyclictest33-21ksoftirqd/211:22:142
29463993327,4cyclictest33-21ksoftirqd/212:24:582
29463993327,4cyclictest33-21ksoftirqd/211:01:412
29463993327,4cyclictest33-21ksoftirqd/210:46:082
29463993327,4cyclictest33-21ksoftirqd/210:03:442
29463993327,4cyclictest33-21ksoftirqd/208:20:422
29463993327,4cyclictest33-21ksoftirqd/208:11:502
29463993327,4cyclictest33-21ksoftirqd/207:25:382
29462993328,3cyclictest25-21ksoftirqd/108:55:191
29462993327,4cyclictest25-21ksoftirqd/110:27:101
29462993327,4cyclictest25-21ksoftirqd/108:28:221
29462993327,4cyclictest25-21ksoftirqd/108:18:321
29462993327,3cyclictest25-21ksoftirqd/108:05:181
29462993326,4cyclictest25-21ksoftirqd/109:30:011
29461993328,3cyclictest9-21ksoftirqd/012:25:120
29461993328,3cyclictest9-21ksoftirqd/011:50:050
29461993328,3cyclictest9-21ksoftirqd/011:12:340
29461993327,4cyclictest9-21ksoftirqd/011:59:370
29461993327,4cyclictest9-21ksoftirqd/011:59:370
29461993327,4cyclictest9-21ksoftirqd/011:33:000
29461993327,4cyclictest9-21ksoftirqd/009:28:230
29461993327,3cyclictest9-21ksoftirqd/010:53:030
29461993326,4cyclictest9-21ksoftirqd/007:44:590
29463993227,3cyclictest33-21ksoftirqd/212:12:502
29463993226,4cyclictest33-21ksoftirqd/212:34:162
29463993226,4cyclictest33-21ksoftirqd/212:34:162
29463993226,4cyclictest33-21ksoftirqd/212:18:082
29463993226,4cyclictest33-21ksoftirqd/209:23:202
29463993225,5cyclictest33-21ksoftirqd/210:59:252
29462993228,3cyclictest25-21ksoftirqd/109:10:011
29462993227,3cyclictest25-21ksoftirqd/109:15:111
29462993227,3cyclictest25-21ksoftirqd/107:20:181
29462993226,4cyclictest25-21ksoftirqd/108:34:121
29462993226,4cyclictest25-21ksoftirqd/108:20:331
29462993226,4cyclictest25-21ksoftirqd/107:52:571
29461993227,3cyclictest9-21ksoftirqd/011:01:230
29461993227,3cyclictest9-21ksoftirqd/010:41:210
29461993226,4cyclictest9-21ksoftirqd/010:15:450
29461993226,3cyclictest9-21ksoftirqd/008:17:220
29461993225,5cyclictest9-21ksoftirqd/012:07:340
29461993213,17cyclictest3741-21seq09:32:130
2946199320,4cyclictest999-21/usr/sbin/munin08:20:250
2946199320,4cyclictest22275-21tr09:05:210
2946199320,3cyclictest21494-21idleruntime-cro10:10:010
2946199320,2cyclictest14421-21/usr/sbin/munin07:45:180
29463993126,3cyclictest33-21ksoftirqd/212:28:482
29463993125,4cyclictest33-21ksoftirqd/209:37:082
29462993127,2cyclictest25-21ksoftirqd/110:10:001
29462993126,3cyclictest25-21ksoftirqd/112:33:031
29462993126,3cyclictest25-21ksoftirqd/112:33:031
29462993126,3cyclictest25-21ksoftirqd/112:16:531
29462993125,4cyclictest25-21ksoftirqd/111:55:591
29462993125,4cyclictest25-21ksoftirqd/111:55:591
29461993126,3cyclictest9-21ksoftirqd/012:24:400
29461993126,3cyclictest9-21ksoftirqd/008:31:490
29461993125,4cyclictest9-21ksoftirqd/011:48:560
29461993125,4cyclictest9-21ksoftirqd/011:41:340
29461993125,4cyclictest9-21ksoftirqd/009:51:260
29461993125,4cyclictest9-21ksoftirqd/008:50:570
29461993125,4cyclictest9-21ksoftirqd/008:28:020
29461993125,4cyclictest9-21ksoftirqd/007:10:100
29461993125,4cyclictest9-21ksoftirqd/007:10:100
29461993115,13cyclictest4817-21hwlatdetect09:35:190
29463993025,3cyclictest33-21ksoftirqd/211:26:582
29463993024,4cyclictest33-21ksoftirqd/211:46:102
29462993025,3cyclictest25-21ksoftirqd/111:11:151
29462993025,3cyclictest25-21ksoftirqd/110:16:431
29462993025,3cyclictest25-21ksoftirqd/107:44:251
29462993024,4cyclictest25-21ksoftirqd/109:48:031
29462993024,4cyclictest25-21ksoftirqd/107:57:261
29462993024,4cyclictest25-21ksoftirqd/107:37:081
29461993025,3cyclictest9-21ksoftirqd/012:04:570
29461993025,3cyclictest9-21ksoftirqd/011:29:590
29461993025,3cyclictest9-21ksoftirqd/010:13:480
29461993025,3cyclictest9-21ksoftirqd/009:02:350
29461993025,3cyclictest9-21ksoftirqd/008:14:230
29461993024,4cyclictest9-21ksoftirqd/010:04:260
29461993024,4cyclictest9-21ksoftirqd/007:39:360
29461993013,14cyclictest9830-21hwlatdetect08:40:180
29463992924,3cyclictest33-21ksoftirqd/212:07:482
29463992924,3cyclictest33-21ksoftirqd/208:27:472
29463992924,3cyclictest33-21ksoftirqd/207:48:212
29463992923,4cyclictest33-21ksoftirqd/211:42:282
29463992923,4cyclictest33-21ksoftirqd/210:23:582
29463992923,4cyclictest33-21ksoftirqd/209:57:252
29463992923,4cyclictest33-21ksoftirqd/208:19:302
29463992923,4cyclictest33-21ksoftirqd/207:22:172
29462992924,3cyclictest25-21ksoftirqd/111:40:151
29462992923,4cyclictest25-21ksoftirqd/110:49:211
29462992923,4cyclictest25-21ksoftirqd/110:20:361
29461992924,3cyclictest9-21ksoftirqd/008:49:480
29461992923,4cyclictest9-21ksoftirqd/012:30:490
29461992923,4cyclictest9-21ksoftirqd/012:30:490
2946199290,2cyclictest16890-21apt-get07:50:110
29463992823,3cyclictest33-21ksoftirqd/211:15:402
29463992823,3cyclictest33-21ksoftirqd/209:13:172
29463992816,10cyclictest33-21ksoftirqd/209:15:262
29462992824,3cyclictest25-21ksoftirqd/108:10:191
29462992823,3cyclictest25-21ksoftirqd/111:35:001
29462992823,3cyclictest25-21ksoftirqd/110:03:151
29462992822,4cyclictest25-21ksoftirqd/112:02:301
29462992822,4cyclictest25-21ksoftirqd/110:38:011
29462992822,4cyclictest25-21ksoftirqd/109:12:591
29461992811,14cyclictest24753-21fschecks_time09:10:170
29463992722,3cyclictest33-21ksoftirqd/211:58:292
29463992722,3cyclictest33-21ksoftirqd/211:58:292
29463992722,3cyclictest33-21ksoftirqd/209:28:032
29463992721,4cyclictest33-21ksoftirqd/207:44:472
29463992720,4cyclictest33-21ksoftirqd/208:30:532
29462992722,3cyclictest25-21ksoftirqd/112:23:351
29462992722,3cyclictest25-21ksoftirqd/107:30:001
2946199277,17cyclictest3779-21timerandwakeup07:20:260
2946199271,4cyclictest18394-21grep08:55:270
29463992621,3cyclictest33-21ksoftirqd/212:05:002
29463992621,3cyclictest33-21ksoftirqd/208:37:402
29462992620,4cyclictest25-21ksoftirqd/112:39:161
29463992520,3cyclictest33-21ksoftirqd/209:05:142
29463992519,4cyclictest33-21ksoftirqd/211:05:552
29463992519,4cyclictest33-21ksoftirqd/211:05:552
29463992519,3cyclictest33-21ksoftirqd/212:38:072
29462992520,3cyclictest25-21ksoftirqd/108:40:121
29463992419,3cyclictest33-21ksoftirqd/210:52:062
29463992418,4cyclictest33-21ksoftirqd/208:04:532
29462992420,3cyclictest25-21ksoftirqd/109:00:231
29463991914,3cyclictest33-21ksoftirqd/209:43:552
29463991711,4cyclictest18708-21seq08:58:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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