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2026-08-12 - 06:01
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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 rackcslot6.osadl.org (updated Wed Aug 12, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132874999366364,1cyclictest1328618-21kworker/3:021:20:013
132874999364363,1cyclictest1404764-1kworker/u17:022:31:023
132874999363362,1cyclictest1493320-21kworker/3:223:04:013
132874999362361,1cyclictest1607710-21kworker/3:000:15:013
132874999362359,2cyclictest1424812-21kworker/3:221:45:013
132874999361360,1cyclictest0-21swapper/323:36:023
132874999361359,1cyclictest1493320-21kworker/3:223:22:013
132874999361359,1cyclictest0-21swapper/322:04:023
132874999361359,1cyclictest0-21swapper/321:40:013
132874999360359,1cyclictest1493320-21kworker/3:223:43:023
132874999360358,1cyclictest1424812-21kworker/3:221:32:023
132874999359357,1cyclictest1328618-21kworker/3:021:28:013
132874999358357,1cyclictest1475899-21kworker/3:122:18:013
132874999358356,1cyclictest1493320-21kworker/3:222:59:013
132874999357356,1cyclictest1493320-21kworker/3:223:55:013
132874999357356,1cyclictest1424812-21kworker/3:221:57:023
132874999357356,1cyclictest0-21swapper/323:11:023
132874999357356,1cyclictest0-21swapper/322:21:023
132874999357355,1cyclictest1424812-21kworker/3:221:50:023
132874999357355,1cyclictest1424812-21kworker/3:221:37:023
132874999357355,1cyclictest1328618-21kworker/3:021:11:013
132874999357355,1cyclictest1328618-21kworker/3:019:15:013
132874999356355,1cyclictest1607710-21kworker/3:000:33:013
132874999356355,1cyclictest1607710-21kworker/3:000:14:023
132874999356355,1cyclictest1493320-21kworker/3:223:09:023
132874999356355,1cyclictest0-21swapper/322:46:023
132874999356355,1cyclictest0-21swapper/322:26:013
132874999356355,1cyclictest0-21swapper/322:26:013
132874999356355,1cyclictest0-21swapper/321:19:013
132874999356355,1cyclictest0-21swapper/300:37:023
132874999356354,1cyclictest1493320-21kworker/3:222:43:023
132874999356354,1cyclictest1493320-21kworker/3:200:02:013
132874999356354,1cyclictest0-21swapper/323:16:013
132874999356354,1cyclictest0-21swapper/319:30:023
132874999356354,1cyclictest0-21swapper/319:30:023
132874999355354,1cyclictest1328618-21kworker/3:019:25:023
132874999355354,1cyclictest0-21swapper/322:05:013
132874999355353,1cyclictest0-21swapper/320:15:013
132874999355353,1cyclictest0-21swapper/300:20:013
132877799354353,1cyclictest1542171-21kworker/7:123:31:017
132874999354353,1cyclictest1493320-21kworker/3:200:05:023
132874999354353,1cyclictest0-21swapper/323:28:013
132874999353352,1cyclictest1328618-21kworker/3:020:56:023
132874999353352,1cyclictest0-21swapper/319:55:013
132877099351349,1cyclictest0-21swapper/623:07:026
132874999351350,1cyclictest1328618-21kworker/3:021:05:023
132874999351350,1cyclictest1328618-21kworker/3:020:06:023
132874999351350,1cyclictest1328618-21kworker/3:019:14:023
132874999351350,1cyclictest0-21swapper/320:37:023
132874999351349,1cyclictest0-21swapper/320:49:023
132874999350349,1cyclictest1328618-21kworker/3:020:34:023
132874999350349,1cyclictest1328618-21kworker/3:020:28:023
132874999350349,1cyclictest1328618-21kworker/3:019:47:013
132874999349348,1cyclictest1328618-21kworker/3:019:44:013
132874999349348,1cyclictest1328618-21kworker/3:019:37:023
132874999348347,1cyclictest1328618-21kworker/3:020:41:023
132874999347346,1cyclictest1328618-21kworker/3:019:54:013
132874099339337,1cyclictest1401771-21kworker/2:023:07:022
132872399339336,1cyclictest0-21swapper/021:52:020
132877799336334,1cyclictest0-21swapper/721:20:027
132877799335333,1cyclictest1376150-21kworker/7:022:31:017
132877799332331,1cyclictest0-21swapper/723:04:027
132877799332331,1cyclictest0-21swapper/700:15:027
132877799331330,1cyclictest1542171-21kworker/7:123:36:017
132877799331330,1cyclictest0-21swapper/721:45:017
132877799331328,2cyclictest1376150-21kworker/7:021:41:027
132877799330329,1cyclictest0-21swapper/723:22:027
132877799330328,2cyclictest1376150-21kworker/7:022:04:027
132877799329328,1cyclictest0-21swapper/723:43:017
132877799329328,1cyclictest0-21swapper/721:32:017
132877799329327,1cyclictest0-21swapper/722:18:027
132877799327326,1cyclictest1376150-21kworker/7:022:21:027
132877799327326,1cyclictest0-21swapper/723:55:017
132877799327326,1cyclictest0-21swapper/722:59:027
132877799327326,1cyclictest0-21swapper/721:57:017
132877799327326,1cyclictest0-21swapper/721:54:017
132877799327326,1cyclictest0-21swapper/721:25:017
132877799327325,2cyclictest1376150-21kworker/7:022:26:027
132877799327325,2cyclictest1376150-21kworker/7:022:26:017
132877799327325,1cyclictest1542171-21kworker/7:123:11:017
132877799327325,1cyclictest0-21swapper/721:37:027
132877799326325,1cyclictest1600266-21kworker/7:000:37:017
132877799326325,1cyclictest1506897-21kworker/7:222:46:017
132877799326325,1cyclictest0-21swapper/723:09:017
132877799326325,1cyclictest0-21swapper/721:11:027
132877799326325,1cyclictest0-21swapper/719:15:027
132877799326325,1cyclictest0-21swapper/700:33:017
132877799326325,1cyclictest0-21swapper/700:14:017
132877799326324,1cyclictest1376150-21kworker/7:022:05:027
132877799326324,1cyclictest1376150-21kworker/7:021:19:027
132877799325324,1cyclictest1542171-21kworker/7:123:16:027
132877799325324,1cyclictest0-21swapper/722:43:017
132877799325324,1cyclictest0-21swapper/700:02:017
132877799324323,1cyclictest1623959-21kworker/7:200:20:027
132877799324323,1cyclictest1542171-21kworker/7:123:28:017
132877799324323,1cyclictest1368282-21kworker/7:120:15:027
132877799324323,1cyclictest1287658-21kworker/7:019:30:017
132877799324323,1cyclictest1287658-21kworker/7:019:30:017
132877799324323,1cyclictest0-21swapper/719:25:027
132877799324323,1cyclictest0-21swapper/700:05:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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