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2026-06-22 - 00:32
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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 Sun Jun 21, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591231168,51phc2sys0-21swapper/307:08:233
192232204169,24sleep10-21swapper/107:07:211
194182201169,21sleep20-21swapper/207:09:472
192892200167,22sleep00-21swapper/007:08:120
138491690,11ptp4l401ktimersoftd/309:25:183
185092590,7sleep11972899cyclictest12:30:261
78612580,3sleep00-21swapper/008:55:150
138491560,1ptp4l401ktimersoftd/311:43:183
138491490,1ptp4l401ktimersoftd/309:40:203
19729994638,5cyclictest4253-21cron11:00:002
19729994638,5cyclictest4253-21cron11:00:002
19729994331,10cyclictest33-21ksoftirqd/208:35:192
19729994231,9cyclictest33-21ksoftirqd/208:50:232
19729994230,10cyclictest33-21ksoftirqd/209:10:152
138491420,0ptp4l401ktimersoftd/311:24:553
135191420,7getstats1973099cyclictest08:24:363
19729994128,10cyclictest33-21ksoftirqd/208:55:162
19728994036,3cyclictest25-21ksoftirqd/110:00:011
19729993927,10cyclictest33-21ksoftirqd/210:10:192
19728993934,3cyclictest25-21ksoftirqd/112:40:001
138491390,1ptp4l401ktimersoftd/311:02:303
19730993833,3cyclictest41-21ksoftirqd/307:40:003
19729993831,4cyclictest26961-21sh07:25:012
19729993827,9cyclictest33-21ksoftirqd/210:00:222
19729993827,9cyclictest33-21ksoftirqd/209:50:252
19730993732,3cyclictest41-21ksoftirqd/307:24:023
19730993731,4cyclictest41-21ksoftirqd/311:30:113
19729993732,3cyclictest33-21ksoftirqd/211:45:172
19729993732,3cyclictest33-21ksoftirqd/211:29:592
19729993732,3cyclictest33-21ksoftirqd/210:35:002
19729993732,3cyclictest33-21ksoftirqd/209:15:162
19729993731,3cyclictest33-21ksoftirqd/210:25:002
19729993730,5cyclictest33-21ksoftirqd/207:49:092
19729993725,10cyclictest33-21ksoftirqd/210:35:272
19727993731,4cyclictest9-21ksoftirqd/012:19:590
19730993630,4cyclictest41-21ksoftirqd/311:51:413
19730993630,4cyclictest41-21ksoftirqd/308:01:273
19730993630,3cyclictest41-21ksoftirqd/312:35:183
19730993630,3cyclictest41-21ksoftirqd/310:27:223
19730993629,4cyclictest41-21ksoftirqd/311:26:183
19729993632,3cyclictest33-21ksoftirqd/207:45:012
19729993631,3cyclictest33-21ksoftirqd/212:00:552
19729993631,3cyclictest33-21ksoftirqd/209:30:192
19729993631,3cyclictest33-21ksoftirqd/209:30:002
19729993630,4cyclictest33-21ksoftirqd/211:24:322
19729993630,4cyclictest33-21ksoftirqd/209:49:082
19729993629,5cyclictest33-21ksoftirqd/212:21:572
19729993625,9cyclictest33-21ksoftirqd/210:05:292
19729993624,10cyclictest33-21ksoftirqd/208:45:212
19728993631,3cyclictest25-21ksoftirqd/109:55:001
19728993630,4cyclictest25-21ksoftirqd/111:34:421
19728993630,4cyclictest25-21ksoftirqd/111:13:121
19728993630,4cyclictest25-21ksoftirqd/110:27:321
19728993630,4cyclictest25-21ksoftirqd/110:22:331
19728993630,4cyclictest25-21ksoftirqd/109:02:111
19727993630,4cyclictest9-21ksoftirqd/010:58:070
19727993630,4cyclictest9-21ksoftirqd/010:58:070
19727993630,4cyclictest9-21ksoftirqd/010:04:430
19730993531,2cyclictest41-21ksoftirqd/310:40:003
19730993530,3cyclictest41-21ksoftirqd/312:00:003
19730993530,3cyclictest41-21ksoftirqd/310:35:003
19730993530,3cyclictest41-21ksoftirqd/307:15:193
19730993529,4cyclictest41-21ksoftirqd/312:05:543
19730993529,4cyclictest41-21ksoftirqd/308:17:023
19730993529,4cyclictest41-21ksoftirqd/308:17:023
19730993529,3cyclictest41-21ksoftirqd/311:18:413
19730993529,3cyclictest41-21ksoftirqd/309:55:023
19730993529,3cyclictest41-21ksoftirqd/307:42:003
19730993528,4cyclictest41-21ksoftirqd/311:11:463
19730993528,4cyclictest41-21ksoftirqd/310:17:223
19730993524,9cyclictest41-21ksoftirqd/309:45:213
19729993531,3cyclictest33-21ksoftirqd/211:00:192
19729993530,3cyclictest33-21ksoftirqd/209:40:112
19729993530,3cyclictest33-21ksoftirqd/208:30:112
19729993529,4cyclictest33-21ksoftirqd/212:27:032
19729993529,4cyclictest33-21ksoftirqd/212:17:002
19729993529,4cyclictest33-21ksoftirqd/211:30:022
19729993529,4cyclictest33-21ksoftirqd/209:39:432
19729993529,4cyclictest33-21ksoftirqd/208:03:132
19729993529,3cyclictest33-21ksoftirqd/211:15:192
19729993529,3cyclictest33-21ksoftirqd/207:15:152
19728993530,3cyclictest25-21ksoftirqd/111:45:001
19728993530,3cyclictest25-21ksoftirqd/110:49:481
19728993530,3cyclictest25-21ksoftirqd/107:50:001
19728993530,3cyclictest25-21ksoftirqd/107:30:201
19728993529,4cyclictest25-21ksoftirqd/111:16:131
19728993529,4cyclictest25-21ksoftirqd/110:41:391
19728993529,4cyclictest25-21ksoftirqd/107:22:241
19727993530,3cyclictest9-21ksoftirqd/012:35:100
19727993529,4cyclictest9-21ksoftirqd/011:09:580
19727993529,4cyclictest9-21ksoftirqd/010:24:330
19727993529,4cyclictest9-21ksoftirqd/009:11:480
19727993529,4cyclictest9-21ksoftirqd/008:54:300
19727993529,4cyclictest9-21ksoftirqd/008:29:470
19727993529,4cyclictest9-21ksoftirqd/008:08:490
19727993529,4cyclictest9-21ksoftirqd/007:44:180
138491350,0ptp4l401ktimersoftd/308:08:293
50798340,9rtkit-daemon0-21swapper/012:04:190
19730993428,4cyclictest41-21ksoftirqd/307:25:323
19730993428,3cyclictest41-21ksoftirqd/310:51:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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