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2025-10-19 - 07:38
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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 Sun Oct 19, 2025 01:00:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2436899311308,2cyclictest0-21swapper/2421:10:2817
2436899311308,2cyclictest0-21swapper/2421:10:2817
2436899282277,2cyclictest0-21swapper/2421:59:3517
2436899282277,2cyclictest0-21swapper/2421:59:3517
24351992321,68cyclictest0-21swapper/1322:15:205
24351992321,68cyclictest0-21swapper/1322:15:195
243399922520,202cyclictest18560-21TaskSchedulerSi00:05:1638
243399922520,202cyclictest18560-21TaskSchedulerSi00:05:1638
243399922520,202cyclictest18560-21TaskSchedulerSi00:05:1638
2435199211121,83cyclictest0-21swapper/1319:20:205
2435199211121,83cyclictest0-21swapper/1319:20:205
24362992101,197cyclictest20600-21sshd00:35:0011
24362992101,197cyclictest20600-21sshd00:35:0011
2436899209187,10cyclictest36794-21nfsd22:55:2017
2436899209187,10cyclictest36794-21nfsd22:55:2017
2436799209177,18cyclictest34009-21inotify_reader20:20:2016
2436799209177,18cyclictest34009-21inotify_reader20:20:2016
2430999206192,3cyclictest0-21swapper/000:25:200
2430999206192,3cyclictest0-21swapper/000:25:200
2430999206192,3cyclictest0-21swapper/000:25:200
2437799205198,5cyclictest0-21swapper/3100:38:0825
2437799205198,5cyclictest0-21swapper/3100:38:0825
2437799205198,5cyclictest0-21swapper/3100:38:0725
2436899205180,10cyclictest23556-21TaskSchedulerSi21:25:2117
2436899205180,10cyclictest23556-21TaskSchedulerSi21:25:2017
243369919781,112cyclictest24159-21inotify_reader19:30:2037
243369919781,112cyclictest24159-21inotify_reader19:30:2037
2436499193186,4cyclictest15980-21CPU13
2436499193186,4cyclictest15980-21CPU13
24361991911,184cyclictest0-21swapper/1823:05:1910
24361991911,184cyclictest0-21swapper/1823:05:1910
243669918923,4cyclictest0-21swapper/2200:15:2215
243669918923,4cyclictest0-21swapper/2200:15:2115
2438799188185,2cyclictest0-21swapper/3719:45:2331
2438799188185,2cyclictest0-21swapper/3719:45:2331
24351991881,3cyclictest0-21swapper/1323:05:165
24351991881,3cyclictest0-21swapper/1323:05:165
24362991871,79cyclictest0-21swapper/1923:10:2211
24362991871,79cyclictest0-21swapper/1923:10:2211
24362991871,79cyclictest0-21swapper/1923:10:2211
24361991861,91cyclictest25056-21TaskSchedulerSi21:15:2210
24361991861,91cyclictest25056-21TaskSchedulerSi21:15:2210
24361991861,91cyclictest25056-21TaskSchedulerSi21:15:2210
2434599186180,3cyclictest0-21swapper/920:00:0139
2431399185178,5cyclictest0-21swapper/219:35:0012
2431399185178,5cyclictest0-21swapper/219:35:0012
2436899184168,4cyclictest0-21swapper/2422:35:2317
2436899184168,4cyclictest0-21swapper/2422:35:2217
24362991841,78cyclictest15981-21CPU11
24362991841,78cyclictest15981-21CPU11
2435199184154,28cyclictest0-21swapper/1322:36:585
2435199184154,28cyclictest0-21swapper/1322:36:585
2434599184173,9cyclictest0-21swapper/921:50:2439
2434599184173,9cyclictest0-21swapper/921:50:2339
2434599184173,9cyclictest0-21swapper/921:50:2339
2438499183180,2cyclictest0-21swapper/3619:55:1530
34172991820,77rtkit-daemon0-21swapper/3623:32:5030
34172991820,77rtkit-daemon0-21swapper/3623:32:5030
34172991820,77rtkit-daemon0-21swapper/3623:32:5030
2434799181134,44cyclictest4912-21CPU3
2434799181134,44cyclictest4912-21CPU3
2439099180170,8cyclictest0-21swapper/3922:18:5333
2439099180170,8cyclictest0-21swapper/3922:18:5333
24362991801,87cyclictest0-21swapper/1900:40:0011
24362991801,87cyclictest0-21swapper/1900:40:0011
24362991801,87cyclictest0-21swapper/1900:40:0011
24362991791,160cyclictest0-21swapper/1900:09:3011
24362991791,160cyclictest0-21swapper/1900:09:3011
24362991791,160cyclictest0-21swapper/1900:09:2911
24336991791,3cyclictest0-21swapper/719:55:0037
2432599179117,43cyclictest0-21swapper/521:23:2035
2432599179117,43cyclictest0-21swapper/521:23:2035
2432599179117,43cyclictest0-21swapper/521:23:1935
2437799178173,2cyclictest0-21swapper/3121:55:0725
2437799178173,2cyclictest0-21swapper/3121:55:0625
2437799178173,2cyclictest0-21swapper/3121:55:0625
2437799178169,7cyclictest0-21swapper/3121:26:1025
2437799178169,7cyclictest0-21swapper/3121:26:0925
2437799178134,39cyclictest15984-21CPU25
2437799178134,39cyclictest15984-21CPU25
2437799178134,39cyclictest15984-21CPU25
243759917820,145cyclictest19654-21inotify_reader00:30:2024
243759917820,145cyclictest19654-21inotify_reader00:30:1924
2437199178175,2cyclictest0-21swapper/2700:34:0420
2437199178175,2cyclictest0-21swapper/2700:34:0420
2436599178130,26cyclictest0-21swapper/2119:55:5514
2434599177172,2cyclictest0-21swapper/923:28:1439
2434599177172,2cyclictest0-21swapper/923:28:1439
2434599177170,5cyclictest0-21swapper/919:50:1339
34172991760,23rtkit-daemon0-21swapper/1622:19:0030
34172991760,23rtkit-daemon0-21swapper/1622:19:0030
2437799176164,10cyclictest0-21swapper/3122:24:4525
2437799176164,10cyclictest0-21swapper/3122:24:4525
2437799176164,10cyclictest0-21swapper/3122:24:4525
2436599176101,49cyclictest0-21swapper/2121:21:3014
2436599176101,49cyclictest0-21swapper/2121:21:3014
2436599176101,49cyclictest0-21swapper/2121:21:3014
2436299176125,48cyclictest0-21swapper/1922:25:2911
2436299176125,48cyclictest0-21swapper/1922:25:2911
2439099175171,2cyclictest0-21swapper/3923:22:2833
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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