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2026-05-24 - 00:04
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Sat May 23, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591229164,20phc2sys0-21swapper/307:05:473
139591229164,20phc2sys0-21swapper/307:05:463
280312209175,23sleep20-21swapper/207:09:512
280312209175,23sleep20-21swapper/207:09:512
278102206173,22sleep00-21swapper/007:07:000
278102206173,22sleep00-21swapper/007:07:000
277762205173,21sleep10-21swapper/107:06:331
277762205173,21sleep10-21swapper/107:06:321
1587221810,5sleep12833999cyclictest12:20:181
260952820,5sleep32834199cyclictest11:35:163
2833899640,22cyclictest9087-21cat08:45:000
2833899640,20cyclictest24010-21cat08:05:280
2833899620,20cyclictest2097-21netstat07:20:240
2833899612,17cyclictest0-21swapper/010:35:260
2833899606,17cyclictest4379-21latency07:25:200
206802600,2sleep30-21swapper/312:30:203
28338995812,19cyclictest5479-21cut09:45:000
2833899581,19cyclictest12543-21cat11:05:210
161452550,2sleep10-21swapper/111:15:001
139291550,1ptp4l401ktimersoftd/312:10:163
2833899540,21cyclictest12904-21taskset07:45:090
2833899540,19cyclictest4060-21awk11:55:230
2833899540,19cyclictest4060-21awk11:55:230
139291540,1ptp4l401ktimersoftd/311:40:273
2833899530,27cyclictest29862-21ssh09:25:270
2833899530,19cyclictest6699-21seq12:00:240
2833899520,19cyclictest29192-21seq08:19:000
55032510,1sleep30-21swapper/309:45:003
320882500,2sleep00-21swapper/010:40:130
2833899500,21cyclictest12066-21seq09:55:360
2833899500,20cyclictest19731-21seq07:59:340
300832470,2sleep10-21swapper/110:35:201
2833899450,22cyclictest17447-21awk07:55:010
139291430,0ptp4l401ktimersoftd/309:50:173
28339994238,2cyclictest25-21ksoftirqd/108:50:001
28339994236,3cyclictest25-21ksoftirqd/108:40:011
28339994136,3cyclictest25-21ksoftirqd/108:15:001
28339994135,3cyclictest25-21ksoftirqd/112:19:591
139291410,1ptp4l401ktimersoftd/308:48:533
28339994036,3cyclictest25-21ksoftirqd/112:00:001
28339994036,3cyclictest25-21ksoftirqd/111:59:591
139291400,0ptp4l401ktimersoftd/310:38:063
28339993934,3cyclictest25-21ksoftirqd/108:25:001
642023833,2sleep341-21ksoftirqd/307:30:193
28341993833,3cyclictest41-21ksoftirqd/311:05:033
28341993833,3cyclictest41-21ksoftirqd/310:58:503
28341993832,4cyclictest41-21ksoftirqd/312:02:363
28341993831,4cyclictest41-21ksoftirqd/307:47:543
28340993831,4cyclictest33-21ksoftirqd/210:38:392
2833999385,8cyclictest25-21ksoftirqd/109:00:001
28339993835,2cyclictest25-21ksoftirqd/112:40:011
28339993834,3cyclictest25-21ksoftirqd/108:05:001
28339993834,3cyclictest25-21ksoftirqd/107:35:001
28339993833,2cyclictest25-21ksoftirqd/108:10:011
28339993832,4cyclictest25-21ksoftirqd/109:34:551
28339993832,3cyclictest25-21ksoftirqd/111:10:011
28339993831,4cyclictest25-21ksoftirqd/107:58:151
28341993732,3cyclictest41-21ksoftirqd/312:38:423
28341993732,3cyclictest41-21ksoftirqd/311:20:133
28341993732,3cyclictest41-21ksoftirqd/310:05:243
28341993731,4cyclictest41-21ksoftirqd/310:14:133
28341993731,4cyclictest41-21ksoftirqd/309:32:443
28341993731,4cyclictest41-21ksoftirqd/308:41:543
28341993731,4cyclictest41-21ksoftirqd/308:36:203
28341993731,4cyclictest41-21ksoftirqd/307:20:063
28340993732,3cyclictest33-21ksoftirqd/211:40:012
28340993731,4cyclictest33-21ksoftirqd/211:34:262
28340993731,4cyclictest33-21ksoftirqd/210:30:322
28340993730,4cyclictest33-21ksoftirqd/208:13:062
28339993733,3cyclictest25-21ksoftirqd/111:05:011
28339993733,2cyclictest25-21ksoftirqd/110:35:011
28339993732,3cyclictest25-21ksoftirqd/110:00:001
28339993732,3cyclictest25-21ksoftirqd/109:45:191
28339993732,3cyclictest25-21ksoftirqd/108:15:191
28339993732,3cyclictest25-21ksoftirqd/107:10:191
28338993732,3cyclictest9-21ksoftirqd/009:50:230
2833899372,19cyclictest27226-21grep10:30:150
139291370,0ptp4l401ktimersoftd/309:20:043
28341993631,3cyclictest41-21ksoftirqd/311:58:233
28341993631,3cyclictest41-21ksoftirqd/311:58:223
28341993631,3cyclictest41-21ksoftirqd/307:39:173
28341993631,3cyclictest41-21ksoftirqd/307:10:113
28341993630,4cyclictest41-21ksoftirqd/312:05:373
28341993630,4cyclictest41-21ksoftirqd/310:22:473
28341993630,4cyclictest41-21ksoftirqd/309:39:273
28341993630,4cyclictest41-21ksoftirqd/309:18:083
28341993630,4cyclictest41-21ksoftirqd/309:02:113
28341993630,4cyclictest41-21ksoftirqd/308:30:253
28341993630,4cyclictest41-21ksoftirqd/307:54:483
28340993632,3cyclictest33-21ksoftirqd/207:20:002
28340993630,5cyclictest33-21ksoftirqd/211:20:132
28340993630,4cyclictest33-21ksoftirqd/209:34:362
28340993630,4cyclictest33-21ksoftirqd/208:36:032
28340993625,9cyclictest33-21ksoftirqd/210:15:272
2833999366,3cyclictest25-21ksoftirqd/107:25:001
28339993632,3cyclictest25-21ksoftirqd/107:40:141
28339993632,2cyclictest25-21ksoftirqd/110:20:151
28339993632,2cyclictest25-21ksoftirqd/108:35:001
28339993631,3cyclictest25-21ksoftirqd/112:25:181
28339993631,3cyclictest25-21ksoftirqd/112:00:131
28339993631,3cyclictest25-21ksoftirqd/108:25:191
28339993630,4cyclictest25-21ksoftirqd/110:26:421
28339993630,4cyclictest25-21ksoftirqd/109:37:231
28339993630,3cyclictest25-21ksoftirqd/109:25:001
28338993630,4cyclictest9-21ksoftirqd/008:58:240
2833899361,22cyclictest1308-21runrttasks11:35:040
28341993530,3cyclictest41-21ksoftirqd/311:50:113
28341993530,3cyclictest41-21ksoftirqd/308:24:533
28341993529,4cyclictest41-21ksoftirqd/312:26:233
28341993529,4cyclictest41-21ksoftirqd/312:18:403
28341993529,4cyclictest41-21ksoftirqd/310:17:543
28341993529,4cyclictest41-21ksoftirqd/307:28:533
28340993531,3cyclictest33-21ksoftirqd/210:51:072
28340993530,3cyclictest33-21ksoftirqd/211:45:432
28340993530,3cyclictest33-21ksoftirqd/209:51:122
28340993529,4cyclictest33-21ksoftirqd/212:33:192
28340993529,4cyclictest33-21ksoftirqd/212:16:272
28340993529,4cyclictest33-21ksoftirqd/211:50:512
28340993529,4cyclictest33-21ksoftirqd/210:13:522
28340993529,4cyclictest33-21ksoftirqd/210:01:522
28339993531,3cyclictest25-21ksoftirqd/111:45:191
28339993531,2cyclictest25-21ksoftirqd/110:45:281
28339993531,2cyclictest25-21ksoftirqd/109:25:281
28339993531,2cyclictest25-21ksoftirqd/109:20:001
28339993531,2cyclictest25-21ksoftirqd/107:30:001
28339993530,3cyclictest25-21ksoftirqd/111:40:011
28339993530,3cyclictest25-21ksoftirqd/111:30:001
28339993530,3cyclictest25-21ksoftirqd/111:30:001
28339993530,3cyclictest25-21ksoftirqd/109:10:121
28339993530,3cyclictest25-21ksoftirqd/108:40:191
28339993530,3cyclictest25-21ksoftirqd/107:45:141
28339993530,2cyclictest25-21ksoftirqd/110:15:001
28339993529,4cyclictest25-21ksoftirqd/111:31:571
28339993529,4cyclictest25-21ksoftirqd/110:09:281
28339993528,4cyclictest25-21ksoftirqd/110:54:381
28338993529,4cyclictest9-21ksoftirqd/011:48:570
28338993529,4cyclictest9-21ksoftirqd/011:43:480
28338993529,4cyclictest9-21ksoftirqd/010:47:230
28338993529,4cyclictest9-21ksoftirqd/008:39:460
28338993529,4cyclictest9-21ksoftirqd/007:18:140
28338993528,4cyclictest9-21ksoftirqd/009:13:360
2833899350,25cyclictest0-21swapper/012:18:460
2833899350,21cyclictest16379-21grep09:00:130
1395913529,3phc2sys41-21ksoftirqd/310:25:203
28341993429,3cyclictest41-21ksoftirqd/311:33:043
28341993429,3cyclictest41-21ksoftirqd/308:14:033
28341993429,3cyclictest41-21ksoftirqd/307:15:213
28341993428,4cyclictest41-21ksoftirqd/310:00:373
28341993428,4cyclictest41-21ksoftirqd/309:07:533
28340993429,3cyclictest33-21ksoftirqd/209:55:582
28340993429,3cyclictest33-21ksoftirqd/208:45:232
28340993429,3cyclictest33-21ksoftirqd/207:37:362
28340993428,4cyclictest33-21ksoftirqd/209:18:352
28340993428,4cyclictest33-21ksoftirqd/209:14:422
28340993428,4cyclictest33-21ksoftirqd/208:41:172
28339993430,3cyclictest25-21ksoftirqd/111:25:001
28339993430,3cyclictest25-21ksoftirqd/110:55:141
28339993429,3cyclictest25-21ksoftirqd/110:05:011
28339993429,3cyclictest25-21ksoftirqd/109:02:061
28339993428,4cyclictest25-21ksoftirqd/112:34:471
28339993428,4cyclictest25-21ksoftirqd/111:42:241
28339993428,4cyclictest25-21ksoftirqd/110:42:311
28339993428,4cyclictest25-21ksoftirqd/107:19:001
28339993427,4cyclictest25-21ksoftirqd/109:53:041
2833999342,3cyclictest25-21ksoftirqd/110:15:281
2833999340,3cyclictest25-21ksoftirqd/111:15:231
28338993429,3cyclictest9-21ksoftirqd/008:25:540
28338993428,4cyclictest9-21ksoftirqd/010:23:070
28338993428,4cyclictest9-21ksoftirqd/010:11:490
28338993428,4cyclictest9-21ksoftirqd/007:14:580
2833899340,20cyclictest1308-21runrttasks08:34:000
2833899340,19cyclictest1308-21runrttasks11:50:420
2833899340,16cyclictest0-21swapper/009:20:250
28341993328,3cyclictest41-21ksoftirqd/311:27:063
28341993328,3cyclictest41-21ksoftirqd/311:27:063
28341993328,3cyclictest41-21ksoftirqd/309:49:053
28341993328,3cyclictest41-21ksoftirqd/309:13:303
28341993326,4cyclictest41-21ksoftirqd/309:59:083
28340993328,3cyclictest33-21ksoftirqd/212:25:182
28340993328,3cyclictest33-21ksoftirqd/211:42:012
28340993328,3cyclictest33-21ksoftirqd/209:46:482
28340993328,3cyclictest33-21ksoftirqd/209:24:232
28340993328,3cyclictest33-21ksoftirqd/208:06:062
28340993327,4cyclictest33-21ksoftirqd/211:14:012
28340993327,4cyclictest33-21ksoftirqd/210:41:442
28340993327,4cyclictest33-21ksoftirqd/209:29:272
28340993327,4cyclictest33-21ksoftirqd/208:52:322
28340993327,4cyclictest33-21ksoftirqd/208:24:562
28340993327,4cyclictest33-21ksoftirqd/207:45:532
28340993327,4cyclictest33-21ksoftirqd/207:40:512
28340993326,4cyclictest33-21ksoftirqd/210:58:082
28339993329,3cyclictest25-21ksoftirqd/107:40:001
28339993328,3cyclictest25-21ksoftirqd/112:11:411
28339993328,3cyclictest25-21ksoftirqd/112:06:341
28339993328,3cyclictest25-21ksoftirqd/107:50:191
28339993327,4cyclictest25-21ksoftirqd/111:54:111
28339993327,4cyclictest25-21ksoftirqd/109:41:411
28338993329,3cyclictest9-21ksoftirqd/012:30:490
28338993328,3cyclictest9-21ksoftirqd/012:09:420
28338993328,3cyclictest9-21ksoftirqd/008:10:120
28338993327,4cyclictest9-21ksoftirqd/012:36:420
28338993327,4cyclictest9-21ksoftirqd/010:07:480
28338993327,4cyclictest9-21ksoftirqd/009:47:380
28338993327,4cyclictest9-21ksoftirqd/008:45:320
28338993327,4cyclictest9-21ksoftirqd/008:21:570
28338993326,4cyclictest9-21ksoftirqd/007:38:520
28341993228,3cyclictest41-21ksoftirqd/310:45:143
28341993227,3cyclictest41-21ksoftirqd/311:04:193
28341993227,3cyclictest41-21ksoftirqd/310:30:573
28341993227,3cyclictest41-21ksoftirqd/309:25:233
28341993227,3cyclictest41-21ksoftirqd/307:56:163
28341993226,4cyclictest41-21ksoftirqd/310:54:483
28341993226,4cyclictest41-21ksoftirqd/307:44:293
28340993228,3cyclictest33-21ksoftirqd/207:55:132
28340993227,3cyclictest33-21ksoftirqd/211:19:112
28340993227,3cyclictest33-21ksoftirqd/211:03:452
28340993227,3cyclictest33-21ksoftirqd/208:33:482
28340993227,3cyclictest33-21ksoftirqd/208:04:422
28340993226,4cyclictest33-21ksoftirqd/212:00:292
28340993226,4cyclictest33-21ksoftirqd/211:59:302
28340993226,4cyclictest33-21ksoftirqd/211:59:302
28340993226,4cyclictest33-21ksoftirqd/209:44:312
28340993226,3cyclictest33-21ksoftirqd/212:21:532
28340993226,3cyclictest33-21ksoftirqd/207:30:002
28340993221,9cyclictest33-21ksoftirqd/212:10:122
28340993221,9cyclictest33-21ksoftirqd/210:20:262
2833999324,3cyclictest121rcu_preempt08:50:131
28339993227,3cyclictest25-21ksoftirqd/109:05:221
28338993226,4cyclictest9-21ksoftirqd/012:27:280
28338993226,4cyclictest9-21ksoftirqd/012:10:470
28338993226,4cyclictest9-21ksoftirqd/010:50:120
28338993226,4cyclictest9-21ksoftirqd/010:16:420
28338993226,4cyclictest9-21ksoftirqd/009:36:110
28338993226,4cyclictest9-21ksoftirqd/008:04:560
139291320,0ptp4l401ktimersoftd/308:25:193
28341993126,3cyclictest41-21ksoftirqd/310:43:383
28338993126,3cyclictest9-21ksoftirqd/007:40:530
28338993125,4cyclictest9-21ksoftirqd/011:28:420
28338993125,4cyclictest9-21ksoftirqd/011:28:420
28338993125,4cyclictest9-21ksoftirqd/011:12:140
28338993125,4cyclictest9-21ksoftirqd/010:25:410
28338993125,4cyclictest9-21ksoftirqd/007:32:550
2833899310,18cyclictest0-21swapper/009:08:180
28341993024,3cyclictest41-21ksoftirqd/308:59:203
28340993026,3cyclictest33-21ksoftirqd/209:00:062
28340993025,3cyclictest33-21ksoftirqd/208:18:482
28340993024,4cyclictest33-21ksoftirqd/208:55:532
28340993024,4cyclictest33-21ksoftirqd/207:10:112
28340993024,3cyclictest33-21ksoftirqd/210:25:142
28340993019,9cyclictest33-21ksoftirqd/207:20:272
28338993025,3cyclictest9-21ksoftirqd/011:03:200
28338993025,3cyclictest9-21ksoftirqd/010:55:120
2833899301,16cyclictest0-21swapper/011:15:160
2833899300,1cyclictest0-21swapper/009:18:450
139291300,0ptp4l401ktimersoftd/312:20:153
139291300,0ptp4l401ktimersoftd/311:49:423
139291300,0ptp4l401ktimersoftd/311:17:383
139291300,0ptp4l401ktimersoftd/308:19:163
28341992924,3cyclictest41-21ksoftirqd/311:11:063
28340992926,2cyclictest33-21ksoftirqd/209:40:012
28340992924,3cyclictest33-21ksoftirqd/210:45:162
28340992924,3cyclictest33-21ksoftirqd/210:06:062
28340992924,3cyclictest33-21ksoftirqd/209:05:132
28340992923,4cyclictest33-21ksoftirqd/212:07:112
28338992924,3cyclictest9-21ksoftirqd/010:04:190
28338992923,4cyclictest9-21ksoftirqd/011:32:470
139291290,0ptp4l401ktimersoftd/308:00:063
28341992823,3cyclictest41-21ksoftirqd/308:06:123
28340992823,3cyclictest33-21ksoftirqd/208:26:242
28338992812,14cyclictest19065-21grep11:20:150
28341992721,4cyclictest41-21ksoftirqd/308:52:213
28340992723,2cyclictest33-21ksoftirqd/207:30:232
28340992722,3cyclictest33-21ksoftirqd/212:36:502
28340992722,3cyclictest33-21ksoftirqd/211:27:312
28340992722,3cyclictest33-21ksoftirqd/211:27:312
28340992716,9cyclictest33-21ksoftirqd/207:50:272
28340992715,11cyclictest33-21ksoftirqd/211:10:002
2833899269,14cyclictest30839-21cpuspeed_turbos09:30:130
2833899269,14cyclictest15657-21irqrtprio12:20:190
2833899251,21cyclictest13685-21awk08:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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