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2025-12-21 - 12:12
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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 rack6slot0.osadl.org (updated Sun Dec 21, 2025 01:00:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149299923320,14cyclictest0-21swapper/1121:35:083
149299923320,14cyclictest0-21swapper/1121:35:083
1493999212205,5cyclictest0-21swapper/1923:05:2011
1493999212205,5cyclictest0-21swapper/1923:05:1911
1493199212206,5cyclictest0-21swapper/1300:06:575
1493199212206,5cyclictest0-21swapper/1300:06:575
1493199212206,5cyclictest0-21swapper/1300:06:565
1493199210204,4cyclictest0-21swapper/1323:14:045
1493199210204,4cyclictest0-21swapper/1323:14:045
1493199210204,4cyclictest0-21swapper/1323:14:045
1492899208199,4cyclictest0-21swapper/1023:33:002
1492899208199,4cyclictest0-21swapper/1023:33:002
1493399207201,4cyclictest0-21swapper/1523:51:247
1493399207201,4cyclictest0-21swapper/1523:51:247
1493399207201,4cyclictest0-21swapper/1523:51:247
1493999204197,5cyclictest0-21swapper/1900:19:3911
1493999204197,5cyclictest0-21swapper/1900:19:3911
1493999204197,5cyclictest0-21swapper/1900:19:3911
1492899204199,4cyclictest0-21swapper/1019:17:312
14923992022,18cyclictest755-21systemd-journal00:07:0936
14923992022,18cyclictest755-21systemd-journal00:07:0936
14923992022,18cyclictest755-21systemd-journal00:07:0936
1493399201194,5cyclictest0-21swapper/1521:15:397
1493399201194,5cyclictest0-21swapper/1521:15:397
1493399200192,6cyclictest0-21swapper/1500:18:167
1493399200192,6cyclictest0-21swapper/1500:18:157
1493399200192,6cyclictest0-21swapper/1500:18:157
1493399199193,5cyclictest0-21swapper/1519:35:237
1493399199193,5cyclictest0-21swapper/1519:35:237
1493399199193,4cyclictest0-21swapper/1521:25:357
1493399199193,4cyclictest0-21swapper/1521:25:357
1493399199192,5cyclictest0-21swapper/1523:20:217
1493399199192,5cyclictest0-21swapper/1523:20:217
1493399199192,5cyclictest0-21swapper/1523:20:217
1493399199181,16cyclictest0-21swapper/1523:45:197
1493399199181,16cyclictest0-21swapper/1523:45:197
1493399199181,16cyclictest0-21swapper/1523:45:197
1493199199193,4cyclictest0-21swapper/1300:10:165
1493199199193,4cyclictest0-21swapper/1300:10:165
1492899199126,44cyclictest3544-21CPU2
1492899199126,44cyclictest3544-21CPU2
1493399198193,4cyclictest0-21swapper/1522:37:107
1493399198193,4cyclictest0-21swapper/1522:37:107
1493399198193,4cyclictest0-21swapper/1522:37:107
1493399198192,2cyclictest0-21swapper/1523:06:577
1493399198192,2cyclictest0-21swapper/1523:06:577
1493399197190,5cyclictest0-21swapper/1519:21:537
1493399197189,6cyclictest0-21swapper/1522:49:147
1493399197189,6cyclictest0-21swapper/1522:49:147
1493399197189,5cyclictest33923-21cups-browsed22:31:057
1493399197189,5cyclictest33923-21cups-browsed22:31:047
1493399196191,4cyclictest0-21swapper/1500:02:247
1493399196191,4cyclictest0-21swapper/1500:02:247
1493399196190,5cyclictest0-21swapper/1521:23:257
1493399196190,5cyclictest0-21swapper/1521:23:257
1493399195187,5cyclictest2462-21CPU7
1493399195187,5cyclictest2462-21CPU7
1493399194182,8cyclictest0-21swapper/1523:41:587
1493399194182,8cyclictest0-21swapper/1523:41:587
1493999193183,8cyclictest0-21swapper/1921:54:3411
1493999193183,8cyclictest0-21swapper/1921:54:3411
1493999193183,8cyclictest0-21swapper/1921:54:3411
1493999192185,5cyclictest0-21swapper/1922:27:5211
1493999192185,5cyclictest0-21swapper/1922:27:5211
1493999192185,5cyclictest0-21swapper/1922:27:5211
1493399192185,5cyclictest0-21swapper/1500:25:377
1493399192185,5cyclictest0-21swapper/1500:25:377
1493399192184,5cyclictest0-21swapper/1522:55:397
1493399192184,5cyclictest0-21swapper/1522:55:397
1493399192176,7cyclictest0-21swapper/1500:37:317
1493399192176,7cyclictest0-21swapper/1500:37:317
1493399192176,7cyclictest0-21swapper/1500:37:317
1493999191187,2cyclictest3441-21nfsd23:35:3411
1493999191187,2cyclictest3441-21nfsd23:35:3411
1493999191187,2cyclictest3441-21nfsd23:35:3411
1493999191167,9cyclictest0-21swapper/1900:11:0111
1493999191167,9cyclictest0-21swapper/1900:11:0111
1493399190183,5cyclictest0-21swapper/1521:41:367
1493399190183,5cyclictest0-21swapper/1521:41:357
1493399189184,4cyclictest0-21swapper/1521:49:247
1493399189184,4cyclictest0-21swapper/1521:49:247
1493399189178,8cyclictest0-21swapper/1521:39:487
1493399189178,8cyclictest0-21swapper/1521:39:487
1494499188183,3cyclictest0-21swapper/2421:00:2217
1494499188183,3cyclictest0-21swapper/2421:00:2217
1493999188183,4cyclictest0-21swapper/1923:49:1311
1493999188183,4cyclictest0-21swapper/1923:49:1311
1493999188183,4cyclictest0-21swapper/1923:49:1311
1493999188181,4cyclictest0-21swapper/1922:23:4411
1493999188181,4cyclictest0-21swapper/1922:23:4411
1493999188181,4cyclictest0-21swapper/1922:23:4411
1493999188179,6cyclictest0-21swapper/1922:02:4311
1493999188179,6cyclictest0-21swapper/1922:02:4211
1493999188179,6cyclictest0-21swapper/1922:02:4211
1493199188153,19cyclictest2466-21CPU5
1493199188153,19cyclictest2466-21CPU5
1493399186180,5cyclictest0-21swapper/1519:35:017
1493399186180,5cyclictest0-21swapper/1519:35:017
1492899186143,11cyclictest171rcu_preempt23:58:412
1492899186143,11cyclictest171rcu_preempt23:58:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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