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2025-11-18 - 13:46
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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 Tue Nov 18, 2025 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
68078099429423,6cyclictest1145333-21kworker/0:2+events22:52:350
68079199408406,1cyclictest0-21swapper/322:48:019
68078099400391,8cyclictest0-21swapper/022:48:000
68078599394390,2cyclictest0-21swapper/122:48:011
68081599341337,2cyclictest1349505-21kworker/u64:3+events_unbound22:48:012
68078899336332,2cyclictest0-21swapper/222:48:018
68080899333333,0cyclictest0-21swapper/822:52:3514
68080599322318,2cyclictest1257164-21kworker/u64:6+flush-9:122:48:0113
68081299316311,3cyclictest1110615-21kworker/9:1+events22:48:0015
68082899308308,0cyclictest0-21swapper/1422:52:356
68080899308302,4cyclictest1386120-21kworker/u64:4+events_unbound22:48:0114
68080399308305,2cyclictest1293574-21kworker/u64:2+events_unbound22:52:3612
68078599302301,1cyclictest0-21swapper/122:50:251
68083099300300,0cyclictest0-21swapper/1522:52:357
68079899298295,3cyclictest0-21swapper/519:10:0111
68082299295291,2cyclictest0-21swapper/1222:48:004
68078899292283,6cyclictest324891-21Renderer22:51:168
68079899291287,3cyclictest0-21swapper/522:48:0011
68078099291282,8cyclictest324891-21Renderer22:56:210
68080399289288,0cyclictest0-21swapper/622:48:0112
68078099289282,7cyclictest324891-21Renderer22:43:470
68082599288282,5cyclictest390842-21Renderer19:10:015
68082599288281,6cyclictest324891-21Renderer22:55:215
68081899288281,6cyclictest324891-21Renderer22:44:593
68080899288283,4cyclictest324891-21Renderer22:43:2314
68080599288282,5cyclictest323654-21Xorg19:16:5613
68080399288282,5cyclictest324891-21Renderer22:57:0312
680798992880,287cyclictest0-21swapper/522:56:2011
68082599287281,5cyclictest324891-21Renderer22:54:005
68081899287281,5cyclictest324891-21Renderer22:45:033
680818992870,286cyclictest0-21swapper/1122:53:073
68081599287282,5cyclictest324891-21Renderer22:51:292
68081599287282,4cyclictest324891-21Renderer22:44:342
680812992870,286cyclictest0-21swapper/922:44:4515
680791992870,1cyclictest0-21swapper/322:55:589
68078599287283,3cyclictest324891-21Renderer22:56:111
68082299286281,5cyclictest324891-21Renderer22:51:494
68081299286282,3cyclictest324891-21Renderer22:52:2715
68080899286282,3cyclictest324891-21Renderer22:55:3214
68080599286280,5cyclictest324891-21Renderer22:54:3713
68080399286282,3cyclictest324891-21Renderer22:44:1412
68079899286280,5cyclictest324891-21Renderer22:54:2511
680791992860,1cyclictest0-21swapper/322:51:479
68078899286282,3cyclictest323654-21Xorg19:21:168
680825992850,1cyclictest0-21swapper/1319:22:185
680818992850,1cyclictest0-21swapper/1122:55:223
68081299285279,5cyclictest324891-21Renderer22:55:5915
680795992850,284cyclictest0-21swapper/422:49:3310
68078599285281,3cyclictest323654-21Xorg20:40:131
68078599285281,3cyclictest323654-21Xorg20:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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