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2025-12-03 - 14:35
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot7.osadl.org (updated Wed Dec 03, 2025 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72507499419417,2cyclictest2343-21snmpd19:26:0311
72508199406403,2cyclictest1106996-21kworker/u64:0+events_unbound20:58:224
72507099385385,0cyclictest0-21swapper/122:14:041
72508299362362,0cyclictest0-21swapper/1319:26:045
72508499360360,0cyclictest0-21swapper/1520:58:207
72508499358357,0cyclictest0-21swapper/1521:08:237
72507999357355,2cyclictest788260-21kworker/u64:7+events_unbound19:26:042
72507999342340,1cyclictest29450irq/128-xhci_hcd20:58:212
72507199337337,0cyclictest0-21swapper/219:26:048
72507199322322,0cyclictest0-21swapper/220:58:218
72507799305302,2cyclictest1106996-21kworker/u64:0+events_unbound20:58:2014
72507799301300,1cyclictest0-21swapper/821:08:2214
72506999291283,7cyclictest323654-21Xorg21:17:410
72506999291282,8cyclictest390842-21Renderer19:37:200
72506999291282,8cyclictest390842-21Renderer19:37:200
72508399290289,0cyclictest0-21swapper/1420:58:216
72507799290283,6cyclictest390842-21Renderer19:19:2014
72506999290281,8cyclictest390842-21Renderer23:44:020
72507799289282,6cyclictest390842-21Renderer21:14:5014
72506999289281,6cyclictest323654-21Xorg19:13:130
72508299288283,5cyclictest390842-21Renderer20:22:285
72508099288282,5cyclictest323654-21Xorg00:37:233
725080992880,283cyclictest0-21swapper/1100:08:303
72507999288282,5cyclictest390842-21Renderer21:42:012
72507899288282,5cyclictest323654-21Xorg19:12:3215
72507499288282,5cyclictest390842-21Renderer19:42:5511
72507199288280,7cyclictest323925-21gnome-shell00:35:598
72506999288279,8cyclictest390842-21Renderer23:33:390
72508399287287,0cyclictest0-21swapper/1421:08:236
72508199287282,4cyclictest390842-21Renderer20:37:454
72508099287282,5cyclictest323925-21gnome-shell20:11:593
72508099287282,4cyclictest390842-21Renderer19:33:153
72507799287282,4cyclictest390842-21Renderer19:58:1014
72507799287281,5cyclictest323654-21Xorg22:17:2014
72507799287279,7cyclictest390842-21Renderer21:16:1814
72507699287282,4cyclictest323925-21gnome-shell22:39:5813
72507699287281,5cyclictest323654-21Xorg19:54:1513
72507599287282,4cyclictest323654-21Xorg00:10:0012
72507399287281,5cyclictest390842-21Renderer19:54:0010
72507199287280,6cyclictest323654-21Xorg21:46:078
72506999287282,4cyclictest390842-21Renderer23:23:320
725069992870,286cyclictest0-21swapper/020:07:290
725069992870,283cyclictest0-21swapper/000:25:000
72508199286280,5cyclictest390842-21Renderer22:30:224
72508199286280,5cyclictest390842-21Renderer22:30:224
72508099286281,5cyclictest390842-21Renderer23:56:263
72507999286282,3cyclictest390842-21Renderer22:24:412
72507999286281,4cyclictest390842-21Renderer20:47:042
72507999286279,6cyclictest323654-21Xorg00:20:222
72507899286281,4cyclictest323925-21gnome-shell23:46:5815
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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