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2025-12-18 - 21:07
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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 50 highest latencies:
System rack7slot0.osadl.org (updated Thu Dec 18, 2025 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
112750650,0irq/25-eth00-21swapper/107:05:131
120650590,0irq/26-eth1-rx-0-21swapper/307:07:173
2617024824,0sleep20-21swapper/207:05:042
112750460,0irq/25-eth00-21swapper/007:07:100
41150,0ktimersoftd/00-21swapper/011:35:000
2834199150,0cyclictest0-21swapper/310:55:163
2834199150,0cyclictest0-21swapper/310:25:173
28340991312,0cyclictest0-21swapper/211:10:272
28340991312,0cyclictest0-21swapper/210:41:512
2834099130,0cyclictest0-21swapper/211:34:092
2834099130,0cyclictest0-21swapper/210:25:152
28339991311,0cyclictest0-21swapper/110:46:531
2833899130,0cyclictest25822-21ntp_states09:50:170
112750130,0irq/25-eth00-21swapper/310:44:393
28341991212,0cyclictest0-21swapper/309:38:533
28341991210,0cyclictest0-21swapper/312:22:343
2834199120,0cyclictest0-21swapper/311:06:293
2834199120,0cyclictest0-21swapper/310:13:593
28340991211,0cyclictest0-21swapper/209:12:122
28340991210,0cyclictest0-21swapper/211:51:332
28340991210,0cyclictest0-21swapper/210:10:442
28340991210,0cyclictest0-21swapper/210:05:022
2834099120,0cyclictest0-21swapper/210:51:022
2834099120,0cyclictest0-21swapper/208:15:172
28339991211,0cyclictest18-21rcuc/109:32:311
28339991211,0cyclictest10963-21strings12:35:151
28339991211,0cyclictest0-21swapper/109:23:201
2833999120,0cyclictest20252-21diskmemload11:24:591
2833999120,0cyclictest0-21swapper/110:58:021
2833999120,0cyclictest0-21swapper/110:12:021
2833899120,0cyclictest0-21swapper/011:10:340
191120,0ktimersoftd/10-21swapper/112:04:071
28341991111,0cyclictest0-21swapper/310:46:513
28341991111,0cyclictest0-21swapper/310:05:023
28341991111,0cyclictest0-21swapper/309:24:443
28341991110,0cyclictest0-21swapper/311:22:593
28341991110,0cyclictest0-21swapper/309:10:133
2834199110,0cyclictest0-21swapper/312:03:513
2834199110,0cyclictest0-21swapper/311:57:083
2834199110,0cyclictest0-21swapper/310:30:573
2834199110,0cyclictest0-21swapper/310:00:503
2834199110,0cyclictest0-21swapper/308:46:593
2834199110,0cyclictest0-21swapper/308:21:103
2834199110,0cyclictest0-21swapper/308:10:573
2834199110,0cyclictest0-21swapper/308:05:433
28340991111,0cyclictest0-21swapper/212:39:402
28340991111,0cyclictest0-21swapper/211:56:482
28340991111,0cyclictest0-21swapper/211:17:102
28340991111,0cyclictest0-21swapper/209:58:402
28340991111,0cyclictest0-21swapper/209:20:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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