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2025-12-12 - 11:38
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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 Fri Dec 12, 2025 01:01:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4214992959,265cyclictest4898-21qemu-system-x8623:45:2039
4214992959,265cyclictest4898-21qemu-system-x8623:45:2039
42149926727,228cyclictest0-21swapper/923:25:2139
42149926727,228cyclictest0-21swapper/923:25:2039
42149924629,194cyclictest15985-21CPU39
42149924629,194cyclictest15985-21CPU39
42149924610,224cyclictest36795-21nfsd21:20:2339
42149924610,224cyclictest36795-21nfsd21:20:2239
42149924430,201cyclictest22694-21TaskSchedulerSi22:30:2339
42149924430,201cyclictest22694-21TaskSchedulerSi22:30:2339
42149924430,201cyclictest22694-21TaskSchedulerSi22:30:2339
42149923712,209cyclictest33049-21inotify_reader19:35:1939
42149923712,209cyclictest33049-21inotify_reader19:35:1939
42149923711,213cyclictest18431-21inotify_reader20:35:2339
42149923711,213cyclictest18431-21inotify_reader20:35:2339
42149923331,196cyclictest36791-21nfsd00:35:2339
42149923331,196cyclictest36791-21nfsd00:35:2239
42149923331,196cyclictest36791-21nfsd00:35:2239
4214992229,199cyclictest39033-21inotify_reader22:35:2039
4214992229,199cyclictest39033-21inotify_reader22:35:2039
4214992229,199cyclictest39033-21inotify_reader22:35:1939
4214992206,189cyclictest0-21swapper/922:15:2239
4214992206,189cyclictest0-21swapper/922:15:2239
42049921827,166cyclictest15983-21CPU23
42049921827,166cyclictest15983-21CPU23
42149921722,180cyclictest37156-21inotify_reader23:10:2239
42149921722,180cyclictest37156-21inotify_reader23:10:2239
42149921722,180cyclictest37156-21inotify_reader23:10:2239
424999216146,59cyclictest13297-21TaskSchedulerSi21:20:2232
424999216146,59cyclictest13297-21TaskSchedulerSi21:20:2232
42369920912,161cyclictest0-21swapper/2600:25:2319
42369920912,161cyclictest0-21swapper/2600:25:2219
42009920746,137cyclictest0-21swapper/022:45:170
42009920746,137cyclictest0-21swapper/022:45:170
424899206190,7cyclictest0-21swapper/3700:07:4231
424899206190,7cyclictest0-21swapper/3700:07:4131
42149920517,181cyclictest0-21swapper/923:30:1939
42149920517,181cyclictest0-21swapper/923:30:1939
424199197165,15cyclictest2711ktimers/3122:30:2325
424199197165,15cyclictest2711ktimers/3122:30:2325
424199197165,15cyclictest2711ktimers/3122:30:2325
421999195150,39cyclictest36159-21tune2fs21:55:235
421999195150,39cyclictest36159-21tune2fs21:55:225
4208991951,174cyclictest0-21swapper/720:40:1737
4208991951,174cyclictest0-21swapper/720:40:1737
423799194115,62cyclictest9327-21CPU20
423799194115,62cyclictest9327-21CPU20
42259919224,164cyclictest11628-21inotify_reader19:55:1810
42259919224,164cyclictest11628-21inotify_reader19:55:1810
421699191111,66cyclictest11707-21inotify_reader00:10:232
421699191111,66cyclictest11707-21inotify_reader00:10:222
421499191139,18cyclictest0-21swapper/919:40:1939
421499191139,18cyclictest0-21swapper/919:40:1939
4204991901,81cyclictest6746-21TaskSchedulerSi21:10:1923
4204991901,81cyclictest6746-21TaskSchedulerSi21:10:1923
4204991901,81cyclictest6746-21TaskSchedulerSi21:10:1923
423999189139,18cyclictest0-21swapper/2919:40:2022
423999189139,18cyclictest0-21swapper/2919:40:1922
42149918827,158cyclictest0-21swapper/921:16:2439
42149918827,158cyclictest0-21swapper/921:16:2439
42149918827,158cyclictest0-21swapper/921:16:2439
4216991861,180cyclictest0-21swapper/1000:30:192
4216991861,180cyclictest0-21swapper/1000:30:182
4216991861,180cyclictest0-21swapper/1000:30:182
421999185111,69cyclictest35543-21inotify_reader23:55:225
421999185111,69cyclictest35543-21inotify_reader23:55:215
421999185111,69cyclictest35543-21inotify_reader23:55:215
420999185177,6cyclictest0-21swapper/819:11:1738
420999185177,6cyclictest0-21swapper/819:11:1638
420999185174,7cyclictest0-21swapper/822:02:0738
420999185174,7cyclictest0-21swapper/822:02:0738
420399185164,8cyclictest0-21swapper/220:15:5712
420399185164,8cyclictest0-21swapper/220:15:5612
4229991849,85cyclictest9287-21inotify_reader21:10:1914
4229991849,85cyclictest9287-21inotify_reader21:10:1914
4229991849,85cyclictest9287-21inotify_reader21:10:1914
4219991841,101cyclictest0-21swapper/1323:50:205
4219991841,101cyclictest0-21swapper/1323:50:205
421899184131,39cyclictest9334-21CPU4
421899184131,39cyclictest9334-21CPU4
421699184123,55cyclictest27483-21TaskSchedulerSi21:35:172
421699184123,55cyclictest27483-21TaskSchedulerSi21:35:162
423799183117,25cyclictest11905-21CPU20
423799183117,25cyclictest11905-21CPU20
4216991837,86cyclictest22230-21inotify_reader23:50:192
4216991837,86cyclictest22230-21inotify_reader23:50:192
420399183171,11cyclictest0-21swapper/221:16:2012
420399183171,11cyclictest0-21swapper/221:16:2012
420399183171,11cyclictest0-21swapper/221:16:2012
423799182168,11cyclictest0-21swapper/2719:49:1120
42149918256,124cyclictest0-21swapper/922:58:0539
42149918256,124cyclictest0-21swapper/922:58:0539
42149918241,127cyclictest9334-21CPU39
42149918241,127cyclictest9334-21CPU39
42199918123,135cyclictest30603-21inotify_reader21:10:205
42199918123,135cyclictest30603-21inotify_reader21:10:205
42199918123,135cyclictest30603-21inotify_reader21:10:205
421699181118,60cyclictest15877-21TaskSchedulerSi22:20:192
421699181118,60cyclictest15877-21TaskSchedulerSi22:20:182
42149918111,161cyclictest0-21swapper/900:05:3039
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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