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2025-11-20 - 09:37
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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 Thu Nov 20, 2025 01:02:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3255699290283,4cyclictest15978-21CPU26
3255699290283,4cyclictest15978-21CPU26
3255699290283,4cyclictest15978-21CPU26
32522992234,208cyclictest37156-21inotify_reader20:55:157
3256299220217,2cyclictest0-21swapper/3721:06:2431
3256299220217,2cyclictest0-21swapper/3721:06:2431
3256299220217,2cyclictest0-21swapper/3721:06:2331
3254599218213,3cyclictest0-21swapper/2820:30:2521
3254599218213,3cyclictest0-21swapper/2820:30:2521
3255699217208,5cyclictest15833-21rm23:10:2026
3255699217208,5cyclictest15833-21rm23:10:2026
3255699217208,5cyclictest15833-21rm23:10:2026
32506992151,210cyclictest0-21swapper/219:55:2112
32506992151,210cyclictest0-21swapper/219:55:2112
32506992140,206cyclictest0-21swapper/220:01:0012
325129921274,128cyclictest3859-21inotify_reader21:45:1637
325129921274,128cyclictest3859-21inotify_reader21:45:1637
325129921274,128cyclictest3859-21inotify_reader21:45:1537
32506992114,76cyclictest0-21swapper/220:55:1612
325099920830,98cyclictest9334-21CPU34
325099920830,98cyclictest9334-21CPU34
325339920792,111cyclictest0-21swapper/2223:05:1715
325339920792,111cyclictest0-21swapper/2223:05:1715
325089920324,163cyclictest24322-21inotify_reader21:30:1723
325089920324,163cyclictest24322-21inotify_reader21:30:1723
3252699201183,11cyclictest0-21swapper/1919:45:0111
3252699201183,11cyclictest0-21swapper/1919:45:0011
3251799200160,37cyclictest0-21swapper/1121:50:563
3251799200160,37cyclictest0-21swapper/1121:50:563
3251799200160,37cyclictest0-21swapper/1121:50:563
3253399199189,9cyclictest0-21swapper/2221:33:3015
3253399199189,9cyclictest0-21swapper/2221:33:3015
325139919947,137cyclictest15984-21CPU38
325139919947,137cyclictest15984-21CPU38
325549919741,128cyclictest0-21swapper/3122:10:0925
325549919741,128cyclictest0-21swapper/3122:10:0925
325549919741,128cyclictest0-21swapper/3122:10:0925
325179919796,92cyclictest8899-21TaskSchedulerSi23:00:193
325179919796,92cyclictest8899-21TaskSchedulerSi23:00:193
325179919796,92cyclictest8899-21TaskSchedulerSi23:00:193
3254999196192,2cyclictest0-21swapper/2922:25:1822
3254999196192,2cyclictest0-21swapper/2922:25:1822
3253399195183,9cyclictest0-21swapper/2223:48:4215
3253399195183,9cyclictest0-21swapper/2223:48:4215
32549991948,170cyclictest40239-21NetworkChangeNo20:45:1922
32549991948,170cyclictest40239-21NetworkChangeNo20:45:1922
3253399194186,6cyclictest0-21swapper/2222:07:1015
3253399194186,6cyclictest0-21swapper/2222:07:1015
325149919437,149cyclictest0-21swapper/922:15:2039
325149919437,149cyclictest0-21swapper/922:15:2039
32564991931,188cyclictest33191-21TaskSchedulerSi21:50:2033
32564991931,188cyclictest33191-21TaskSchedulerSi21:50:2033
32564991931,188cyclictest33191-21TaskSchedulerSi21:50:1933
3251499193175,14cyclictest0-21swapper/922:35:3539
3251499193175,14cyclictest0-21swapper/922:35:3539
32564991922,4cyclictest4908-21CPU33
32564991922,4cyclictest4908-21CPU33
32564991922,4cyclictest4908-21CPU33
3256299192171,17cyclictest0-21swapper/3722:40:1931
3256299192171,17cyclictest0-21swapper/3722:40:1931
3256299192171,17cyclictest0-21swapper/3722:40:1931
3255699192177,12cyclictest5015-21NetworkChangeNo20:10:1926
3255699192177,12cyclictest5015-21NetworkChangeNo20:10:1926
3255899190152,35cyclictest0-21swapper/3423:36:4628
3255899190152,35cyclictest0-21swapper/3423:36:4628
3255899190152,35cyclictest0-21swapper/3423:36:4628
3255699190177,11cyclictest0-21swapper/3222:25:3226
3255699190177,11cyclictest0-21swapper/3222:25:3226
3253399190177,11cyclictest0-21swapper/2223:33:3515
3253399190177,11cyclictest0-21swapper/2223:33:3415
3253399190177,11cyclictest0-21swapper/2223:33:3415
3255699189177,8cyclictest3592-21inotify_reader22:15:1826
3255699189177,8cyclictest3592-21inotify_reader22:15:1826
3254999189171,14cyclictest15978-21CPU22
32545991891,5cyclictest24274-21inotify_reader00:00:1921
32545991891,5cyclictest24274-21inotify_reader00:00:1921
32545991891,5cyclictest24274-21inotify_reader00:00:1821
3253399189173,13cyclictest0-21swapper/2223:54:2715
3253399189173,13cyclictest0-21swapper/2223:54:2615
3253399189173,13cyclictest0-21swapper/2223:54:2615
32517991893,179cyclictest4906-21CPU3
32517991893,179cyclictest4906-21CPU3
3253399188179,7cyclictest0-21swapper/2223:23:4615
3253399188179,7cyclictest0-21swapper/2223:23:4615
3253399188179,7cyclictest0-21swapper/2223:23:4615
32520991881,91cyclictest0-21swapper/1323:05:185
32520991881,91cyclictest0-21swapper/1323:05:185
32522991871,91cyclictest0-21swapper/1522:20:147
32522991871,91cyclictest0-21swapper/1522:20:147
32522991871,91cyclictest0-21swapper/1522:20:147
32564991861,179cyclictest0-21swapper/3921:15:1533
32564991861,179cyclictest0-21swapper/3921:15:1533
32564991861,179cyclictest0-21swapper/3921:15:1533
32545991861,162cyclictest0-21swapper/2822:05:1821
32545991861,162cyclictest0-21swapper/2822:05:1721
3252699185179,3cyclictest36794-21nfsd22:00:0011
3252699185179,3cyclictest36794-21nfsd22:00:0011
3252599185171,9cyclictest0-21swapper/1821:25:1610
3252599185171,9cyclictest0-21swapper/1821:25:1610
32506991851,181cyclictest0-21swapper/219:55:0312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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