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2026-04-10 - 16:58
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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 100 highest latencies:
System rack3slot0.osadl.org (updated Fri Apr 10, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26220991350,134cyclictest3119-21kworker/2:009:25:222
26246999428,4cyclictest2207-21sshd09:25:235
256612880,1sleep773-21ksoftirqd/710:44:457
257452730,2sleep72626199cyclictest12:34:267
310052700,2sleep62625499cyclictest10:07:526
143522700,1sleep588050irq/26-em1-tx-009:39:075
214302540,0sleep50-21swapper/510:35:145
77572530,0sleep50-21swapper/511:46:505
209222530,0sleep120899-21sshd09:09:401
177142530,0sleep60-21swapper/609:43:016
56892520,0sleep70-21swapper/709:18:037
63222510,0sleep30-21swapper/310:43:373
2600325024,8sleep40-21swapper/407:05:084
266292490,0sleep40-21swapper/412:17:414
130672490,1sleep341-21ksoftirqd/312:26:133
55572480,1sleep449-21ksoftirqd/410:13:514
315922480,0sleep10-21swapper/109:51:131
26254994819,1cyclictest710-21nscd09:25:236
269412470,0sleep5551rcuc/511:57:165
210172470,0sleep40-21swapper/409:32:024
188232470,0sleep50-21swapper/511:28:565
171302470,0sleep60-21swapper/610:34:596
134932470,0sleep5551rcuc/510:51:245
269242460,0sleep30-21swapper/309:41:383
38462450,1sleep09-21ksoftirqd/010:41:340
295842450,1sleep773-21ksoftirqd/712:01:107
180472450,0sleep50-21swapper/510:03:265
170752450,1sleep01-21systemd12:07:520
155622450,2sleep42623899cyclictest10:51:314
71182440,1sleep67117-21bash12:27:446
97652430,0sleep10-21swapper/109:35:111
306522430,1sleep030642-21sshd10:11:300
2620499430,39cyclictest492-21systemd-journal09:25:230
2603724229,9sleep70-21swapper/707:05:367
249682420,0sleep50-21swapper/511:44:105
196572420,1sleep519656-21bash11:14:075
168262420,1sleep12621299cyclictest09:50:251
47612410,0sleep2311rcuc/209:44:092
114322410,0sleep10-21swapper/111:34:051
2585324028,8sleep60-21swapper/607:03:026
208712400,0sleep00-21swapper/012:17:210
102932400,0sleep60-21swapper/611:15:286
270792390,0sleep70-21swapper/710:15:067
2604523927,8sleep20-21swapper/207:05:392
2600423927,8sleep50-21swapper/507:05:095
2582023927,8sleep00-21swapper/007:02:320
2577423927,8sleep30-21swapper/307:01:553
2574523927,9sleep10-21swapper/107:01:291
304302380,0sleep20-21swapper/212:31:002
26212993836,2cyclictest30409-21kworker/1:009:25:231
226012380,0sleep70-21swapper/708:51:127
94032370,0sleep50-21swapper/511:22:485
30042370,0sleep60-21swapper/607:21:116
266162370,0sleep30-21swapper/309:50:593
125862370,1sleep7784-21runrttasks09:39:017
240952340,2sleep12621299cyclictest09:41:281
141232290,1sleep414120-21bash11:36:084
26204992821,7cyclictest9-21ksoftirqd/011:26:520
26204992620,5cyclictest30094-21kworker/0:209:50:280
26228992523,1cyclictest2130-21sshd09:25:233
26204992520,5cyclictest9-21ksoftirqd/010:08:060
2626199230,22cyclictest15067-21kworker/u16:109:25:237
26204992318,5cyclictest9-21ksoftirqd/009:31:280
26204992318,5cyclictest23725-21kworker/0:411:41:440
26204992311,5cyclictest9-21ksoftirqd/012:03:320
26204992212,9cyclictest9-21ksoftirqd/011:24:520
26204992116,2cyclictest9-21ksoftirqd/009:42:440
26254992018,1cyclictest65-21ksoftirqd/610:38:226
26254992015,4cyclictest65-21ksoftirqd/609:12:476
26254992013,4cyclictest65-21ksoftirqd/611:51:506
26220992017,1cyclictest33-21ksoftirqd/210:52:462
26204992016,2cyclictest9-21ksoftirqd/010:34:090
2623899190,2cyclictest2065-21grep09:25:234
2620499198,7cyclictest9-21ksoftirqd/010:55:240
26204991918,1cyclictest9-21ksoftirqd/012:31:180
26204991915,3cyclictest9-21ksoftirqd/009:37:290
26204991915,1cyclictest9-21ksoftirqd/010:16:190
26204991914,5cyclictest9-21ksoftirqd/011:00:540
26254991816,1cyclictest65-21ksoftirqd/610:21:406
26254991816,1cyclictest65-21ksoftirqd/609:39:446
26220991816,2cyclictest33-21ksoftirqd/209:39:372
26220991814,3cyclictest33-21ksoftirqd/212:27:052
2620499186,1cyclictest121rcu_preempt09:57:550
26204991816,1cyclictest9-21ksoftirqd/011:53:360
26204991816,1cyclictest9-21ksoftirqd/010:23:440
26204991815,3cyclictest9-21ksoftirqd/009:07:200
26204991813,5cyclictest9-21ksoftirqd/011:57:280
26204991812,5cyclictest9-21ksoftirqd/011:03:440
26204991812,1cyclictest9-21ksoftirqd/011:06:200
2620499180,6cyclictest0-21swapper/010:29:360
2620499180,6cyclictest0-21swapper/010:29:360
249802180,0sleep00-21swapper/009:52:400
89932170,0sleep20-21swapper/212:20:272
26254991716,1cyclictest65-21ksoftirqd/609:50:596
26254991715,1cyclictest65-21ksoftirqd/611:44:216
26254991715,1cyclictest65-21ksoftirqd/611:08:396
26254991715,1cyclictest65-21ksoftirqd/610:46:346
26254991715,1cyclictest65-21ksoftirqd/609:30:366
26254991714,2cyclictest65-21ksoftirqd/611:02:586
26254991714,1cyclictest65-21ksoftirqd/611:57:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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