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2026-05-11 - 21:14
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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 rackdslot4.osadl.org (updated Mon May 11, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182162207174,22sleep10-21swapper/107:09:311
138591205171,23phc2sys0-21swapper/307:09:203
182172202169,22sleep20-21swapper/207:09:312
181652202168,22sleep00-21swapper/007:08:490
863521430,3sleep30-21swapper/312:15:133
38392710,2sleep30-21swapper/308:50:133
14412670,6sleep11855899cyclictest10:55:191
138491660,1ptp4l401ktimersoftd/311:50:273
18559996416,5cyclictest33-21ksoftirqd/209:55:132
247392620,9sleep21855999cyclictest11:40:262
18559996115,4cyclictest33-21ksoftirqd/212:30:132
18559995820,9cyclictest33-21ksoftirqd/207:35:122
18559995820,9cyclictest33-21ksoftirqd/207:35:122
18559995819,5cyclictest33-21ksoftirqd/211:04:572
18559995817,8cyclictest33-21ksoftirqd/211:15:152
18559995815,8cyclictest33-21ksoftirqd/211:39:442
18559995717,8cyclictest33-21ksoftirqd/210:55:152
18559995715,9cyclictest33-21ksoftirqd/209:30:132
18559995712,10cyclictest33-21ksoftirqd/212:35:162
18559995616,4cyclictest33-21ksoftirqd/208:38:512
24582550,4sleep341-21ksoftirqd/309:50:273
18560995521,6cyclictest41-21ksoftirqd/310:05:013
18559995524,7cyclictest33-21ksoftirqd/208:10:172
18559995513,8cyclictest33-21ksoftirqd/208:25:142
18559995512,9cyclictest33-21ksoftirqd/210:20:142
18560995422,6cyclictest41-21ksoftirqd/307:15:223
18559995423,4cyclictest33-21ksoftirqd/208:45:012
18559995420,10cyclictest33-21ksoftirqd/210:00:152
18559995416,3cyclictest33-21ksoftirqd/208:55:122
226682530,2sleep30-21swapper/309:25:273
18559995339,3cyclictest33-21ksoftirqd/212:25:012
18559995319,8cyclictest33-21ksoftirqd/210:40:122
18559995316,5cyclictest33-21ksoftirqd/207:55:122
18559995312,9cyclictest33-21ksoftirqd/207:45:152
18559995312,8cyclictest33-21ksoftirqd/210:39:182
18557995327,4cyclictest9-21ksoftirqd/008:25:000
18560995223,3cyclictest41-21ksoftirqd/308:35:013
1855999523,8cyclictest33-21ksoftirqd/212:30:012
18559995221,7cyclictest33-21ksoftirqd/208:20:212
18559995216,4cyclictest33-21ksoftirqd/209:44:332
18559995211,9cyclictest33-21ksoftirqd/209:35:222
1855999518,5cyclictest33-21ksoftirqd/210:15:002
18559995113,8cyclictest33-21ksoftirqd/208:30:162
18559995112,9cyclictest33-21ksoftirqd/211:30:162
18560995030,17cyclictest41-21ksoftirqd/309:05:013
18560995020,6cyclictest41-21ksoftirqd/308:45:263
18560995020,3cyclictest41-21ksoftirqd/308:05:143
18560995019,6cyclictest41-21ksoftirqd/311:55:263
18559995035,3cyclictest33-21ksoftirqd/212:15:162
18559995029,9cyclictest33-21ksoftirqd/208:05:152
1855999502,3cyclictest33-21ksoftirqd/209:00:222
18559995020,10cyclictest33-21ksoftirqd/207:20:002
18557995036,3cyclictest9-21ksoftirqd/012:05:220
18560994917,3cyclictest41-21ksoftirqd/309:35:013
18560994915,8cyclictest41-21ksoftirqd/307:40:213
18560994910,7cyclictest41-21ksoftirqd/311:10:133
1855999497,2cyclictest33-21ksoftirqd/211:55:272
1855999496,7cyclictest33-21ksoftirqd/208:00:272
1855999496,2cyclictest33-21ksoftirqd/209:45:202
18559994923,4cyclictest33-21ksoftirqd/209:25:142
18559994911,4cyclictest33-21ksoftirqd/212:00:232
18560994817,3cyclictest41-21ksoftirqd/307:50:003
18560994816,7cyclictest41-21ksoftirqd/307:25:223
18560994816,4cyclictest41-21ksoftirqd/312:10:243
18560994815,7cyclictest41-21ksoftirqd/311:44:593
18560994815,7cyclictest41-21ksoftirqd/307:50:223
18560994814,7cyclictest41-21ksoftirqd/311:35:193
1855999488,6cyclictest33-21ksoftirqd/210:05:172
1855999486,3cyclictest33-21ksoftirqd/210:25:182
1855999486,3cyclictest33-21ksoftirqd/208:20:002
18559994833,11cyclictest33-21ksoftirqd/212:10:282
18559994830,9cyclictest33-21ksoftirqd/210:18:072
18559994829,3cyclictest33-21ksoftirqd/211:09:592
18559994815,9cyclictest33-21ksoftirqd/209:50:242
18558994831,3cyclictest25-21ksoftirqd/111:10:111
141412480,2sleep10-21swapper/112:25:181
18560994718,8cyclictest41-21ksoftirqd/311:45:183
18560994715,7cyclictest41-21ksoftirqd/311:05:253
18560994715,4cyclictest41-21ksoftirqd/309:15:163
18560994715,3cyclictest41-21ksoftirqd/307:20:243
18560994714,9cyclictest41-21ksoftirqd/309:35:213
18560994714,8cyclictest41-21ksoftirqd/312:25:173
18560994713,7cyclictest41-21ksoftirqd/309:05:273
1855999475,2cyclictest121rcu_preempt10:30:242
1855999474,3cyclictest121rcu_preempt08:50:182
18559994716,10cyclictest33-21ksoftirqd/211:25:142
18559994715,8cyclictest33-21ksoftirqd/212:05:142
18557994737,3cyclictest9-21ksoftirqd/012:10:130
18560994618,6cyclictest41-21ksoftirqd/307:57:413
18560994617,8cyclictest41-21ksoftirqd/308:55:173
18560994615,4cyclictest41-21ksoftirqd/310:55:203
18560994614,7cyclictest41-21ksoftirqd/312:20:273
18560994613,7cyclictest41-21ksoftirqd/310:15:003
18560994613,4cyclictest41-21ksoftirqd/310:30:013
18560994610,4cyclictest41-21ksoftirqd/310:35:193
18559994630,5cyclictest33-21ksoftirqd/210:50:242
18559994630,3cyclictest33-21ksoftirqd/207:50:192
18559994615,8cyclictest33-21ksoftirqd/210:46:512
1855999461,2cyclictest121rcu_preempt09:20:262
18559994611,8cyclictest33-21ksoftirqd/209:05:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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