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2026-07-22 - 19:31
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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 Wed Jul 22, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117652204170,23sleep10-21swapper/107:06:441
138591202169,22phc2sys0-21swapper/307:06:463
117142199166,22sleep20-21swapper/207:06:032
117022195161,23sleep00-21swapper/007:05:530
3269721720,6sleep21232199cyclictest08:55:162
2361021690,8sleep11232099cyclictest07:30:181
614621610,2sleep01231999cyclictest11:15:220
1385918764,12phc2sys0-21swapper/307:10:013
12321996428,4cyclictest33-21ksoftirqd/207:15:202
12320996411,13cyclictest5113-21cut10:10:121
12322996327,4cyclictest41-21ksoftirqd/307:35:193
12321996331,8cyclictest33-21ksoftirqd/212:35:162
12320996312,12cyclictest204822chrt11:45:151
12321996230,5cyclictest33-21ksoftirqd/209:15:152
12321996128,4cyclictest33-21ksoftirqd/208:25:202
12321996126,4cyclictest33-21ksoftirqd/210:15:132
12322996029,7cyclictest41-21ksoftirqd/311:40:003
12322996026,10cyclictest41-21ksoftirqd/308:05:013
12322996021,4cyclictest41-21ksoftirqd/312:00:193
12321996026,4cyclictest33-21ksoftirqd/207:55:282
12320996012,11cyclictest21739-21/usr/sbin/munin09:35:271
1231999605,7cyclictest27339-21ls07:40:000
229392590,4sleep01231999cyclictest10:45:170
12322995929,4cyclictest41-21ksoftirqd/310:05:013
12322995923,4cyclictest41-21ksoftirqd/311:00:273
12322995922,10cyclictest41-21ksoftirqd/310:35:143
12322995919,7cyclictest41-21ksoftirqd/310:55:003
12321995931,4cyclictest33-21ksoftirqd/210:20:172
12321995929,4cyclictest33-21ksoftirqd/212:30:002
12321995928,8cyclictest33-21ksoftirqd/207:50:212
12321995927,5cyclictest33-21ksoftirqd/211:05:002
12320995910,11cyclictest22336-21chrt07:29:371
12322995828,4cyclictest41-21ksoftirqd/310:35:013
12322995828,4cyclictest41-21ksoftirqd/310:35:003
12322995824,4cyclictest41-21ksoftirqd/311:50:233
12322995823,4cyclictest41-21ksoftirqd/312:15:243
12322995823,4cyclictest41-21ksoftirqd/312:15:243
12322995822,7cyclictest41-21ksoftirqd/311:45:133
12321995827,6cyclictest33-21ksoftirqd/211:20:162
12321995827,6cyclictest33-21ksoftirqd/211:05:172
12320995810,11cyclictest16158-21/usr/sbin/munin11:35:221
12322995733,6cyclictest41-21ksoftirqd/311:15:143
12322995729,4cyclictest41-21ksoftirqd/308:15:253
12322995727,4cyclictest41-21ksoftirqd/307:15:273
12322995726,4cyclictest41-21ksoftirqd/309:30:203
12322995724,5cyclictest41-21ksoftirqd/309:20:003
12322995723,7cyclictest41-21ksoftirqd/311:40:123
12322995723,10cyclictest41-21ksoftirqd/308:29:593
12322995720,5cyclictest41-21ksoftirqd/309:20:163
12321995723,6cyclictest33-21ksoftirqd/212:00:142
12322995628,4cyclictest41-21ksoftirqd/311:25:143
12322995627,4cyclictest41-21ksoftirqd/310:25:263
12322995627,4cyclictest41-21ksoftirqd/309:35:143
12322995626,4cyclictest41-21ksoftirqd/312:25:133
12322995626,4cyclictest41-21ksoftirqd/311:10:193
12322995626,4cyclictest41-21ksoftirqd/310:05:133
12322995624,3cyclictest41-21ksoftirqd/310:15:243
12322995620,4cyclictest41-21ksoftirqd/311:20:213
12322995620,14cyclictest41-21ksoftirqd/312:20:153
12322995619,8cyclictest41-21ksoftirqd/310:55:163
12322995619,4cyclictest41-21ksoftirqd/310:40:143
12321995627,6cyclictest33-21ksoftirqd/210:00:142
12321995624,6cyclictest33-21ksoftirqd/207:25:142
12321995621,5cyclictest33-21ksoftirqd/209:55:242
12322995527,4cyclictest41-21ksoftirqd/310:10:103
12322995527,4cyclictest41-21ksoftirqd/309:50:103
12322995525,4cyclictest41-21ksoftirqd/308:10:193
12322995524,4cyclictest41-21ksoftirqd/309:45:143
12322995524,4cyclictest41-21ksoftirqd/308:50:213
12322995523,5cyclictest41-21ksoftirqd/309:10:113
12322995523,4cyclictest41-21ksoftirqd/310:20:233
12322995523,4cyclictest41-21ksoftirqd/307:25:233
12322995522,5cyclictest41-21ksoftirqd/309:00:003
12322995520,4cyclictest41-21ksoftirqd/307:20:223
12322995519,4cyclictest41-21ksoftirqd/312:05:163
12322995518,5cyclictest41-21ksoftirqd/308:35:293
12322995518,4cyclictest41-21ksoftirqd/308:40:243
12322995517,8cyclictest41-21ksoftirqd/312:10:133
12321995523,5cyclictest33-21ksoftirqd/208:35:142
12321995517,9cyclictest33-21ksoftirqd/211:35:112
1232099558,10cyclictest12157-21latency_hist12:35:011
138491540,1ptp4l401ktimersoftd/307:58:463
12322995429,4cyclictest41-21ksoftirqd/308:45:173
12322995419,4cyclictest41-21ksoftirqd/307:30:213
12322995418,4cyclictest41-21ksoftirqd/309:05:293
12321995417,5cyclictest33-21ksoftirqd/209:05:242
12320995411,12cyclictest18706-21awk11:40:211
12320995410,9cyclictest31758-21chrt11:03:351
12320995410,11cyclictest2692-21df_inode11:10:141
1231999544,5cyclictest4466-21ls11:15:000
1231999543,7cyclictest27005-21sed10:55:000
97752530,4sleep233-21ksoftirqd/208:07:252
12322995319,6cyclictest41-21ksoftirqd/309:25:173
12322995317,10cyclictest41-21ksoftirqd/312:35:133
12322995316,5cyclictest41-21ksoftirqd/312:30:223
1232199539,6cyclictest33-21ksoftirqd/210:55:262
12321995327,5cyclictest33-21ksoftirqd/212:30:222
12321995310,5cyclictest33-21ksoftirqd/208:10:262
1232099539,9cyclictest13328-21meminfo12:35:191
12320995311,11cyclictest16834-21seq10:32:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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