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2025-12-09 - 08:30
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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 Tue Dec 09, 2025 01:01:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3623699334330,2cyclictest0-21swapper/123:39:481
3623699334330,2cyclictest0-21swapper/123:39:481
3623699334330,2cyclictest0-21swapper/123:39:481
3626799276245,8cyclictest36795-21nfsd23:30:1821
3626799276245,8cyclictest36795-21nfsd23:30:1821
36255992681,257cyclictest0-21swapper/1700:15:229
36255992681,257cyclictest0-21swapper/1700:15:229
36255992681,257cyclictest0-21swapper/1700:15:229
3627899257227,16cyclictest15982-21CPU31
3627899257227,16cyclictest15982-21CPU31
3627899257227,16cyclictest15982-21CPU31
3623799255163,88cyclictest11905-21CPU12
3623799255163,88cyclictest11905-21CPU12
3625099251237,3cyclictest0-21swapper/1422:45:196
3625099251237,3cyclictest0-21swapper/1422:45:196
3627899249218,16cyclictest32710-21inotify_reader19:25:1831
3627899249218,16cyclictest32710-21inotify_reader19:25:1731
3623699242219,4cyclictest0-21swapper/123:25:201
3623699242219,4cyclictest0-21swapper/123:25:201
3623699242219,4cyclictest0-21swapper/123:25:201
36248992363,7cyclictest36796-21nfsd22:00:194
36248992363,7cyclictest36796-21nfsd22:00:184
362729922927,182cyclictest11900-21CPU26
362729922927,182cyclictest11900-21CPU26
362729922927,182cyclictest11900-21CPU26
3625399229194,17cyclictest15982-21CPU8
3625399229194,17cyclictest15982-21CPU8
362659922762,77cyclictest31271-21TaskSchedulerSi22:05:1919
362659922762,77cyclictest31271-21TaskSchedulerSi22:05:1919
36276992211,3cyclictest0-21swapper/3600:05:2030
36276992211,3cyclictest0-21swapper/3600:05:2030
36276992211,3cyclictest0-21swapper/3600:05:2030
3623599217190,15cyclictest13053-21NetworkChangeNo19:20:190
3623599217190,15cyclictest13053-21NetworkChangeNo19:20:190
36240992121,82cyclictest0-21swapper/519:35:1735
36240992121,82cyclictest0-21swapper/519:35:1735
3623999212127,81cyclictest15979-21CPU34
3623999212127,81cyclictest15979-21CPU34
362489920928,160cyclictest11901-21CPU4
362489920928,160cyclictest11901-21CPU4
362489920928,160cyclictest11901-21CPU4
3626399204198,4cyclictest0-21swapper/2421:52:5517
3626399204198,4cyclictest0-21swapper/2421:52:5517
3626399204198,4cyclictest0-21swapper/2421:52:5517
36266992021,102cyclictest0-21swapper/2722:15:1820
36266992021,102cyclictest0-21swapper/2722:15:1820
36266992021,102cyclictest0-21swapper/2722:15:1820
3625099201191,8cyclictest0-21swapper/1423:07:496
3625099201191,8cyclictest0-21swapper/1423:07:496
362659920032,145cyclictest3079-21CPU19
362659920032,145cyclictest3079-21CPU19
3626699198172,23cyclictest0-21swapper/2721:31:0920
3626699198172,23cyclictest0-21swapper/2721:31:0920
3626699198172,23cyclictest0-21swapper/2721:31:0920
3625399198191,5cyclictest0-21swapper/1621:15:148
3625399198191,5cyclictest0-21swapper/1621:15:148
3625399198191,5cyclictest0-21swapper/1621:15:148
362599919799,62cyclictest11898-21CPU13
362599919799,62cyclictest11898-21CPU13
362599919799,62cyclictest11898-21CPU13
36276991967,185cyclictest2823-21NetworkChangeNo20:25:2030
362669919562,121cyclictest0-21swapper/2721:59:5120
362669919562,121cyclictest0-21swapper/2721:59:5120
362669919562,121cyclictest0-21swapper/2721:59:5120
36266991950,184cyclictest0-21swapper/2700:05:2220
36266991950,184cyclictest0-21swapper/2700:05:2220
36266991950,184cyclictest0-21swapper/2700:05:2220
3623899195187,5cyclictest0-21swapper/321:48:3223
3623899195187,5cyclictest0-21swapper/321:48:3123
3626399194140,47cyclictest4632-21CPU17
3626399194140,47cyclictest4632-21CPU17
362609919432,75cyclictest23910-21inotify_reader21:55:1814
362609919432,75cyclictest23910-21inotify_reader21:55:1814
362609919432,75cyclictest23910-21inotify_reader21:55:1814
36239991942,84cyclictest9327-21CPU34
36239991942,84cyclictest9327-21CPU34
36239991942,84cyclictest9327-21CPU34
3623999194160,26cyclictest0-21swapper/422:18:2434
3623999194160,26cyclictest0-21swapper/422:18:2434
3623999194160,26cyclictest0-21swapper/422:18:2434
3623799192184,5cyclictest0-21swapper/223:19:5212
3623799192184,5cyclictest0-21swapper/223:19:5212
3627899191173,6cyclictest175150irq/81-eno3-TxRx-322:10:2031
3627899191173,6cyclictest175150irq/81-eno3-TxRx-322:10:2031
3625799191127,43cyclictest1651rcuc/1823:45:2010
3625799191127,43cyclictest1651rcuc/1823:45:2010
3625799191127,43cyclictest1651rcuc/1823:45:2010
362429919118,78cyclictest13408-21inotify_reader22:10:2037
362429919118,78cyclictest13408-21inotify_reader22:10:2037
3623599191184,4cyclictest18979-21sshd23:35:480
3623599191184,4cyclictest18979-21sshd23:35:480
3623599191184,4cyclictest18979-21sshd23:35:480
3627899190177,5cyclictest0-21swapper/3723:56:0331
3627899190177,5cyclictest0-21swapper/3723:56:0331
3627899190177,5cyclictest0-21swapper/3723:56:0331
36235991906,47cyclictest0-21swapper/023:10:200
36235991906,47cyclictest0-21swapper/023:10:200
36235991906,47cyclictest0-21swapper/023:10:190
362659918951,114cyclictest4909-21CPU19
362659918951,114cyclictest4909-21CPU19
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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