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2025-12-05 - 23:58
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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 rackdslot3.osadl.org (updated Fri Dec 05, 2025 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191237171,22phc2sys0-21swapper/307:07:313
98592202170,21sleep00-21swapper/007:07:190
100492202168,22sleep10-21swapper/107:09:371
98612201168,22sleep20-21swapper/207:07:212
294852650,2sleep00-21swapper/008:25:170
1037499590,3cyclictest26470-21taskset12:04:413
1037499580,2cyclictest0-21swapper/310:19:163
1037499513,23cyclictest0-21swapper/311:02:343
1037499513,23cyclictest0-21swapper/307:36:383
1037499512,26cyclictest0-21swapper/312:07:323
1037299515,42cyclictest223-21systemd-journal11:25:001
10373994919,3cyclictest33-21ksoftirqd/209:20:002
10373994816,5cyclictest33-21ksoftirqd/210:05:132
1037499463,25cyclictest0-21swapper/308:39:073
10373994618,4cyclictest33-21ksoftirqd/208:55:112
10373994615,7cyclictest33-21ksoftirqd/210:40:252
10371994640,3cyclictest6267-21dump-pmu-power12:30:000
136991450,0ptp4l401ktimersoftd/308:04:353
10373994414,4cyclictest33-21ksoftirqd/209:45:192
10373994325,16cyclictest33-21ksoftirqd/212:39:592
10373994312,5cyclictest33-21ksoftirqd/211:41:152
1037499428,21cyclictest20398-21seq10:41:243
1037499420,3cyclictest26900-21/usr/sbin/munin09:50:223
10373994213,4cyclictest33-21ksoftirqd/211:23:132
10373994212,4cyclictest33-21ksoftirqd/210:32:272
136991410,32ptp4l0-21swapper/307:10:003
1037499415,23cyclictest16903-21taskset07:33:443
1037499415,22cyclictest12043-21taskset11:33:343
1037499410,3cyclictest17885-21/usr/sbin/munin07:40:133
1037399418,4cyclictest33-21ksoftirqd/210:55:142
1037399418,4cyclictest33-21ksoftirqd/210:55:142
10373994136,3cyclictest33-21ksoftirqd/209:55:012
10373994116,7cyclictest33-21ksoftirqd/211:25:162
10373994116,7cyclictest33-21ksoftirqd/211:25:162
10372994135,4cyclictest2651-21cron11:15:001
1037399403,5cyclictest33-21ksoftirqd/209:30:212
1037399403,5cyclictest33-21ksoftirqd/209:30:212
10373994035,3cyclictest33-21ksoftirqd/209:43:572
10373994035,2cyclictest33-21ksoftirqd/210:20:012
10373994029,2cyclictest121rcu_preempt12:20:182
10373994013,3cyclictest33-21ksoftirqd/211:10:012
10373994012,7cyclictest33-21ksoftirqd/211:55:222
10373994012,4cyclictest33-21ksoftirqd/211:09:042
10373994012,4cyclictest33-21ksoftirqd/211:02:092
10373994012,4cyclictest33-21ksoftirqd/210:29:182
10373994012,4cyclictest33-21ksoftirqd/209:08:282
10373994011,4cyclictest33-21ksoftirqd/210:23:562
136991390,0ptp4l401ktimersoftd/312:25:173
1037399398,5cyclictest33-21ksoftirqd/212:00:132
1037399397,4cyclictest33-21ksoftirqd/208:10:232
1037399395,2cyclictest33-21ksoftirqd/211:45:232
10373993934,3cyclictest33-21ksoftirqd/211:35:002
10373993934,3cyclictest33-21ksoftirqd/209:55:142
10373993934,3cyclictest33-21ksoftirqd/209:10:222
10373993933,3cyclictest33-21ksoftirqd/208:20:012
10373993926,10cyclictest33-21ksoftirqd/209:35:142
10373993921,3cyclictest33-21ksoftirqd/207:29:592
10373993913,4cyclictest33-21ksoftirqd/208:46:122
10373993913,4cyclictest33-21ksoftirqd/208:36:492
10373993913,3cyclictest33-21ksoftirqd/208:42:072
10373993911,4cyclictest33-21ksoftirqd/210:54:412
10373993911,3cyclictest33-21ksoftirqd/210:47:272
10373993910,4cyclictest33-21ksoftirqd/207:38:322
1037399389,4cyclictest33-21ksoftirqd/208:32:002
1037399385,3cyclictest121rcu_preempt08:00:012
10373993831,4cyclictest33-21ksoftirqd/211:18:132
1037399382,7cyclictest33-21ksoftirqd/209:25:252
10373993827,9cyclictest33-21ksoftirqd/211:50:172
1037399382,6cyclictest33-21ksoftirqd/210:10:092
10373993811,4cyclictest33-21ksoftirqd/208:01:392
10373993732,3cyclictest33-21ksoftirqd/210:40:012
10373993731,3cyclictest33-21ksoftirqd/212:34:592
10373993731,3cyclictest1422-21uname10:04:592
1037399371,5cyclictest33-21ksoftirqd/207:10:122
10373993712,3cyclictest33-21ksoftirqd/209:02:522
10372993730,4cyclictest25-21ksoftirqd/111:30:011
10372993730,4cyclictest25-21ksoftirqd/111:30:011
10374993630,4cyclictest41-21ksoftirqd/310:59:023
10374993630,4cyclictest41-21ksoftirqd/310:59:023
10373993631,3cyclictest33-21ksoftirqd/212:15:142
10373993631,3cyclictest33-21ksoftirqd/212:10:152
10373993631,3cyclictest33-21ksoftirqd/207:32:062
10373993629,4cyclictest33-21ksoftirqd/207:50:002
10373993629,4cyclictest33-21ksoftirqd/207:50:002
10373993628,5cyclictest33-21ksoftirqd/207:54:142
10372993631,2cyclictest25-21ksoftirqd/107:59:591
10371993631,3cyclictest9-21ksoftirqd/012:05:000
10374993529,4cyclictest41-21ksoftirqd/311:44:453
10374993529,4cyclictest41-21ksoftirqd/308:53:523
10374993529,4cyclictest41-21ksoftirqd/307:52:593
10374993529,4cyclictest41-21ksoftirqd/307:27:113
10374993528,5cyclictest41-21ksoftirqd/311:58:413
10374993528,5cyclictest41-21ksoftirqd/309:58:073
10374993528,4cyclictest41-21ksoftirqd/312:39:103
10373993530,3cyclictest33-21ksoftirqd/211:35:222
10373993529,3cyclictest33-21ksoftirqd/208:30:012
10373993528,4cyclictest33-21ksoftirqd/209:22:072
10373993527,6cyclictest33-21ksoftirqd/212:30:002
10373993525,3cyclictest33-21ksoftirqd/212:05:212
10372993530,3cyclictest25-21ksoftirqd/111:49:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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