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2026-05-19 - 15:19
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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 Tue May 19, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591233166,22phc2sys0-21swapper/307:08:023
292572209175,22sleep20-21swapper/207:08:082
292042203170,21sleep10-21swapper/107:07:261
290822202168,22sleep00-21swapper/007:05:520
139291880,1ptp4l5043-21/usr/sbin/munin11:55:253
139291580,10ptp4l401ktimersoftd/308:19:433
139291540,1ptp4l401ktimersoftd/309:00:103
126572530,5sleep02970199cyclictest12:10:160
139291460,36ptp4l0-21swapper/307:10:003
139291450,8ptp4l401ktimersoftd/311:04:343
29704994330,10cyclictest41-21ksoftirqd/311:30:263
2970299431,39cyclictest1308-21runrttasks11:51:111
139291430,0ptp4l401ktimersoftd/307:50:213
29704994236,3cyclictest41-21ksoftirqd/311:40:003
139291420,0ptp4l401ktimersoftd/308:20:023
2970499411,4cyclictest121rcu_preempt10:50:193
139291410,1ptp4l25131-21apt-get09:15:143
139291410,0ptp4l401ktimersoftd/311:42:523
139291410,0ptp4l401ktimersoftd/308:46:533
29704994036,3cyclictest41-21ksoftirqd/311:00:003
29704994035,3cyclictest41-21ksoftirqd/309:45:003
29704994035,3cyclictest41-21ksoftirqd/308:30:013
29703994025,13cyclictest33-21ksoftirqd/210:03:462
29702994036,2cyclictest25-21ksoftirqd/111:05:001
29702994035,2cyclictest7790-21idleruntime-cro08:40:001
29702994034,3cyclictest25-21ksoftirqd/109:55:001
29704993933,4cyclictest41-21ksoftirqd/310:09:333
29704993928,9cyclictest41-21ksoftirqd/312:35:293
29704993834,2cyclictest41-21ksoftirqd/310:15:013
29703993832,4cyclictest33-21ksoftirqd/212:11:062
29703993832,4cyclictest33-21ksoftirqd/211:24:182
29703993832,4cyclictest33-21ksoftirqd/211:24:182
29703993832,4cyclictest33-21ksoftirqd/210:22:002
29701993832,4cyclictest9-21ksoftirqd/012:28:430
29701993831,4cyclictest9-21ksoftirqd/012:36:160
139291380,0ptp4l401ktimersoftd/309:10:203
29704993734,2cyclictest41-21ksoftirqd/309:50:003
29704993732,3cyclictest41-21ksoftirqd/310:35:133
29704993732,3cyclictest41-21ksoftirqd/308:44:593
29704993732,2cyclictest41-21ksoftirqd/311:10:273
29704993731,4cyclictest41-21ksoftirqd/312:03:013
29704993731,4cyclictest41-21ksoftirqd/307:56:343
29704993731,4cyclictest41-21ksoftirqd/307:42:133
29704993727,9cyclictest41-21ksoftirqd/311:50:253
29704993725,10cyclictest41-21ksoftirqd/312:05:273
2970499370,2cyclictest121rcu_preempt09:57:033
29703993732,3cyclictest33-21ksoftirqd/208:05:112
29703993731,4cyclictest33-21ksoftirqd/208:34:512
29703993731,3cyclictest33-21ksoftirqd/207:29:592
29702993733,3cyclictest25-21ksoftirqd/112:25:001
29702993733,3cyclictest25-21ksoftirqd/108:00:011
29702993732,3cyclictest25-21ksoftirqd/111:40:001
29702993732,3cyclictest25-21ksoftirqd/110:29:591
29702993731,4cyclictest25-21ksoftirqd/109:00:031
29702993731,3cyclictest25-21ksoftirqd/111:15:001
29701993732,3cyclictest9-21ksoftirqd/011:15:010
29701993731,4cyclictest9-21ksoftirqd/011:51:160
29701993730,4cyclictest9-21ksoftirqd/011:28:090
29701993730,4cyclictest9-21ksoftirqd/009:00:030
41298360,2rtkit-daemon0-21swapper/112:26:231
29704993632,2cyclictest41-21ksoftirqd/310:34:593
29704993632,2cyclictest41-21ksoftirqd/308:40:003
29704993631,3cyclictest41-21ksoftirqd/312:33:183
29704993631,3cyclictest41-21ksoftirqd/312:24:113
29704993631,3cyclictest41-21ksoftirqd/311:08:533
29704993631,3cyclictest41-21ksoftirqd/310:42:373
29704993631,3cyclictest41-21ksoftirqd/310:23:533
29704993631,3cyclictest41-21ksoftirqd/310:17:303
29704993630,4cyclictest41-21ksoftirqd/311:17:203
29704993630,4cyclictest41-21ksoftirqd/308:53:103
29703993632,3cyclictest33-21ksoftirqd/210:20:002
29703993632,3cyclictest33-21ksoftirqd/207:40:012
29703993630,4cyclictest33-21ksoftirqd/211:18:322
29703993630,4cyclictest33-21ksoftirqd/207:47:052
29703993630,4cyclictest33-21ksoftirqd/207:41:452
29702993630,4cyclictest25-21ksoftirqd/112:11:021
29702993630,4cyclictest25-21ksoftirqd/109:25:051
29702993630,4cyclictest25-21ksoftirqd/109:25:051
29702993630,4cyclictest25-21ksoftirqd/107:41:311
29702993630,3cyclictest25-21ksoftirqd/110:20:171
29702993630,3cyclictest25-21ksoftirqd/109:15:201
29701993631,3cyclictest9-21ksoftirqd/008:23:030
29701993630,4cyclictest9-21ksoftirqd/010:22:260
29701993630,4cyclictest9-21ksoftirqd/009:35:550
2970199362,2cyclictest121rcu_preempt10:50:260
29704993531,3cyclictest41-21ksoftirqd/308:05:183
29704993531,2cyclictest41-21ksoftirqd/308:55:153
29704993531,2cyclictest41-21ksoftirqd/308:15:003
29704993530,3cyclictest41-21ksoftirqd/312:11:283
29704993530,3cyclictest41-21ksoftirqd/311:30:003
29704993530,3cyclictest41-21ksoftirqd/308:00:203
29704993530,3cyclictest41-21ksoftirqd/307:48:243
29704993529,4cyclictest41-21ksoftirqd/310:29:143
29704993529,4cyclictest41-21ksoftirqd/309:53:073
29704993529,4cyclictest41-21ksoftirqd/308:30:043
29704993529,3cyclictest41-21ksoftirqd/309:35:203
29704993522,4cyclictest41-21ksoftirqd/309:20:223
29704993522,4cyclictest41-21ksoftirqd/309:20:223
29704993521,3cyclictest41-21ksoftirqd/307:35:183
29703993530,3cyclictest33-21ksoftirqd/211:40:362
29703993530,3cyclictest33-21ksoftirqd/210:40:482
29703993530,3cyclictest33-21ksoftirqd/209:36:092
29703993530,3cyclictest33-21ksoftirqd/209:32:422
29703993530,3cyclictest33-21ksoftirqd/209:00:002
29703993529,4cyclictest33-21ksoftirqd/212:38:102
29703993529,4cyclictest33-21ksoftirqd/212:18:492
29703993529,4cyclictest33-21ksoftirqd/211:57:262
29703993529,4cyclictest33-21ksoftirqd/208:28:522
29703993529,4cyclictest33-21ksoftirqd/207:30:292
29703993529,4cyclictest33-21ksoftirqd/207:30:292
29703993528,5cyclictest33-21ksoftirqd/209:24:472
29703993528,5cyclictest33-21ksoftirqd/209:24:472
29702993531,3cyclictest25-21ksoftirqd/107:55:011
29702993530,3cyclictest25-21ksoftirqd/111:46:291
29702993530,3cyclictest25-21ksoftirqd/111:20:001
29702993530,3cyclictest25-21ksoftirqd/108:10:131
29702993529,4cyclictest25-21ksoftirqd/110:34:371
29702993529,4cyclictest25-21ksoftirqd/108:49:511
29702993529,3cyclictest25-21ksoftirqd/109:45:191
2970299350,2cyclictest121rcu_preempt07:25:141
29701993530,3cyclictest9-21ksoftirqd/010:15:010
29701993530,3cyclictest9-21ksoftirqd/007:28:180
29701993529,4cyclictest9-21ksoftirqd/011:23:150
29701993529,4cyclictest9-21ksoftirqd/011:23:150
29701993529,4cyclictest9-21ksoftirqd/010:56:430
29701993529,4cyclictest9-21ksoftirqd/010:18:200
29701993529,4cyclictest9-21ksoftirqd/009:16:250
29701993529,4cyclictest9-21ksoftirqd/008:25:590
29701993529,4cyclictest9-21ksoftirqd/008:06:090
29701993528,4cyclictest9-21ksoftirqd/007:16:560
29704993431,2cyclictest41-21ksoftirqd/307:19:593
29704993430,3cyclictest41-21ksoftirqd/310:05:013
29704993430,3cyclictest41-21ksoftirqd/307:25:153
29704993429,3cyclictest41-21ksoftirqd/310:50:013
29704993429,3cyclictest41-21ksoftirqd/307:35:013
29704993429,3cyclictest41-21ksoftirqd/307:35:013
29703993429,3cyclictest33-21ksoftirqd/210:11:522
29703993429,3cyclictest33-21ksoftirqd/209:06:392
29703993429,3cyclictest33-21ksoftirqd/208:51:172
29703993429,3cyclictest33-21ksoftirqd/208:37:222
29703993428,4cyclictest33-21ksoftirqd/211:50:012
29703993428,4cyclictest33-21ksoftirqd/211:31:192
29703993428,4cyclictest33-21ksoftirqd/209:49:462
29703993428,4cyclictest33-21ksoftirqd/208:49:572
29703993428,4cyclictest33-21ksoftirqd/208:24:492
29702993429,3cyclictest25-21ksoftirqd/112:30:201
29702993429,3cyclictest25-21ksoftirqd/110:55:001
29702993429,3cyclictest25-21ksoftirqd/110:20:001
29702993429,3cyclictest25-21ksoftirqd/109:10:001
29702993429,3cyclictest25-21ksoftirqd/108:01:501
29702993429,3cyclictest25-21ksoftirqd/107:33:501
29702993429,3cyclictest25-21ksoftirqd/107:33:501
29702993428,4cyclictest25-21ksoftirqd/112:03:111
29702993428,4cyclictest25-21ksoftirqd/111:09:151
29702993428,4cyclictest25-21ksoftirqd/109:12:581
29702993428,4cyclictest25-21ksoftirqd/108:32:351
29702993427,4cyclictest25-21ksoftirqd/112:15:581
29701993429,3cyclictest9-21ksoftirqd/009:35:000
29701993428,4cyclictest9-21ksoftirqd/011:47:460
29701993428,4cyclictest9-21ksoftirqd/011:17:420
29701993428,4cyclictest9-21ksoftirqd/011:07:070
29701993428,4cyclictest9-21ksoftirqd/010:01:270
29701993428,4cyclictest9-21ksoftirqd/007:59:110
29701993428,4cyclictest9-21ksoftirqd/007:45:480
29701993428,4cyclictest9-21ksoftirqd/007:42:590
29704993329,3cyclictest41-21ksoftirqd/307:20:203
29704993328,3cyclictest41-21ksoftirqd/312:15:193
29704993328,2cyclictest41-21ksoftirqd/311:45:173
29704993327,4cyclictest41-21ksoftirqd/311:22:053
29704993327,4cyclictest41-21ksoftirqd/311:22:053
29704993321,10cyclictest41-21ksoftirqd/309:30:253
29703993328,3cyclictest33-21ksoftirqd/211:37:582
29703993328,3cyclictest33-21ksoftirqd/211:02:392
29703993328,3cyclictest33-21ksoftirqd/209:27:032
29703993328,3cyclictest33-21ksoftirqd/209:27:022
29703993328,3cyclictest33-21ksoftirqd/208:41:482
29703993327,4cyclictest33-21ksoftirqd/212:21:052
29703993327,4cyclictest33-21ksoftirqd/211:53:582
29703993327,4cyclictest33-21ksoftirqd/210:54:402
29703993327,4cyclictest33-21ksoftirqd/209:04:322
29702993328,3cyclictest25-21ksoftirqd/112:05:121
29702993328,3cyclictest25-21ksoftirqd/111:55:211
29702993328,3cyclictest25-21ksoftirqd/110:06:191
29702993328,3cyclictest25-21ksoftirqd/107:39:431
29702993327,4cyclictest25-21ksoftirqd/112:37:491
29702993327,4cyclictest25-21ksoftirqd/111:41:331
29702993327,4cyclictest25-21ksoftirqd/111:34:151
29702993327,4cyclictest25-21ksoftirqd/109:30:111
29702993327,4cyclictest25-21ksoftirqd/108:44:331
29702993327,4cyclictest25-21ksoftirqd/108:06:431
29702993327,3cyclictest25-21ksoftirqd/107:15:191
29702993326,4cyclictest25-21ksoftirqd/109:55:341
29701993328,3cyclictest9-21ksoftirqd/009:40:040
29701993328,3cyclictest9-21ksoftirqd/009:06:570
29701993328,3cyclictest9-21ksoftirqd/008:57:530
29701993328,3cyclictest9-21ksoftirqd/008:34:290
29701993328,3cyclictest9-21ksoftirqd/008:16:250
29701993328,3cyclictest9-21ksoftirqd/008:02:240
29701993327,4cyclictest9-21ksoftirqd/011:41:560
29701993327,4cyclictest9-21ksoftirqd/010:26:150
29701993327,4cyclictest9-21ksoftirqd/009:52:090
29701993327,4cyclictest9-21ksoftirqd/009:22:200
29701993327,4cyclictest9-21ksoftirqd/009:22:190
29701993327,4cyclictest9-21ksoftirqd/008:49:430
29701993327,4cyclictest9-21ksoftirqd/007:23:010
29703993227,3cyclictest33-21ksoftirqd/211:10:122
29703993227,3cyclictest33-21ksoftirqd/210:28:362
29703993227,3cyclictest33-21ksoftirqd/209:55:012
29703993227,3cyclictest33-21ksoftirqd/208:02:442
29703993227,3cyclictest33-21ksoftirqd/207:52:232
29703993226,4cyclictest33-21ksoftirqd/212:27:522
29703993226,4cyclictest33-21ksoftirqd/210:45:462
29703993226,4cyclictest33-21ksoftirqd/209:56:042
2970399320,2cyclictest121rcu_preempt09:16:412
29702993227,3cyclictest25-21ksoftirqd/111:20:181
29702993227,3cyclictest25-21ksoftirqd/111:20:181
29702993227,3cyclictest25-21ksoftirqd/110:40:131
29702993227,3cyclictest25-21ksoftirqd/110:05:001
29702993227,3cyclictest25-21ksoftirqd/109:40:011
29702993227,3cyclictest25-21ksoftirqd/109:20:161
29702993227,3cyclictest25-21ksoftirqd/109:20:161
29702993226,4cyclictest25-21ksoftirqd/110:48:461
29702993226,4cyclictest25-21ksoftirqd/110:12:361
29702993226,4cyclictest25-21ksoftirqd/107:14:481
29701993227,3cyclictest9-21ksoftirqd/010:35:200
29701993227,3cyclictest9-21ksoftirqd/009:57:220
29701993227,3cyclictest9-21ksoftirqd/008:40:530
29701993226,4cyclictest9-21ksoftirqd/012:18:150
29701993226,4cyclictest9-21ksoftirqd/012:04:260
29701993226,4cyclictest9-21ksoftirqd/011:33:090
29701993226,4cyclictest9-21ksoftirqd/010:49:000
29701993226,4cyclictest9-21ksoftirqd/008:54:120
29701993226,4cyclictest9-21ksoftirqd/007:35:130
29704993126,3cyclictest41-21ksoftirqd/312:25:183
29704993126,3cyclictest41-21ksoftirqd/309:30:013
29704993126,3cyclictest41-21ksoftirqd/309:30:003
29704993125,3cyclictest41-21ksoftirqd/309:10:013
29703993127,3cyclictest33-21ksoftirqd/209:45:002
29703993126,3cyclictest33-21ksoftirqd/212:06:372
29703993126,3cyclictest33-21ksoftirqd/209:12:502
29703993126,3cyclictest33-21ksoftirqd/208:15:392
29703993126,3cyclictest33-21ksoftirqd/207:59:492
29703993125,4cyclictest33-21ksoftirqd/210:39:482
29703993125,4cyclictest33-21ksoftirqd/207:11:202
29702993128,2cyclictest25-21ksoftirqd/111:30:001
29702993127,2cyclictest25-21ksoftirqd/111:00:001
29702993126,3cyclictest25-21ksoftirqd/108:16:411
29702993126,3cyclictest25-21ksoftirqd/107:23:331
29702993125,4cyclictest25-21ksoftirqd/109:44:191
29702993125,4cyclictest25-21ksoftirqd/108:25:491
29701993126,3cyclictest9-21ksoftirqd/010:41:020
29701993126,3cyclictest9-21ksoftirqd/009:25:190
29701993126,3cyclictest9-21ksoftirqd/009:25:190
29701993126,3cyclictest9-21ksoftirqd/007:13:150
29701993125,4cyclictest9-21ksoftirqd/009:45:300
29701993125,4cyclictest9-21ksoftirqd/009:10:360
29703993025,3cyclictest33-21ksoftirqd/212:30:132
29703993024,4cyclictest33-21ksoftirqd/211:06:122
29703993024,4cyclictest33-21ksoftirqd/210:56:542
29703993024,3cyclictest33-21ksoftirqd/208:11:032
29702993025,3cyclictest25-21ksoftirqd/108:55:201
29701993025,3cyclictest9-21ksoftirqd/011:00:050
29701993024,4cyclictest9-21ksoftirqd/012:08:160
29701993024,4cyclictest9-21ksoftirqd/007:32:310
29701993024,4cyclictest9-21ksoftirqd/007:32:310
29703992924,3cyclictest33-21ksoftirqd/212:00:122
29702992924,3cyclictest25-21ksoftirqd/108:54:591
29702992923,4cyclictest25-21ksoftirqd/107:49:171
29701992924,3cyclictest9-21ksoftirqd/007:50:410
29701992923,4cyclictest9-21ksoftirqd/011:37:020
29703992823,3cyclictest33-21ksoftirqd/210:33:512
29703992823,3cyclictest33-21ksoftirqd/210:06:342
29703992823,3cyclictest33-21ksoftirqd/207:17:382
29702992823,3cyclictest25-21ksoftirqd/108:20:261
29701992823,3cyclictest9-21ksoftirqd/012:24:290
29701992822,4cyclictest9-21ksoftirqd/008:14:080
29701992722,3cyclictest9-21ksoftirqd/012:00:000
29703992621,3cyclictest33-21ksoftirqd/211:25:322
29701992520,3cyclictest9-21ksoftirqd/010:05:200
29702992419,3cyclictest25-21ksoftirqd/110:36:411
29701992419,3cyclictest9-21ksoftirqd/010:31:490
29701992419,3cyclictest9-21ksoftirqd/008:35:130
29701992318,3cyclictest9-21ksoftirqd/012:34:580
29703992218,3cyclictest33-21ksoftirqd/207:20:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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