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2025-12-10 - 16:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Wed Dec 10, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24515212096,18sleep30-21swapper/307:05:013
26513211796,16sleep10-21swapper/107:09:521
26451211497,12sleep20-21swapper/207:09:052
26257210594,6sleep00-21swapper/007:06:390
321192750,1sleep00-21swapper/007:20:280
58932680,1sleep10-21swapper/107:35:271
43232230,1sleep0101ktimersoftd/010:10:020
279882230,0sleep00-21swapper/007:10:260
26553992320,2cyclictest25721-21kworker/u8:010:09:052
2655199230,18cyclictest0-21swapper/011:11:050
26553992219,2cyclictest641-21kworker/u8:208:47:052
26553992219,2cyclictest10891-21kworker/u8:209:14:052
26554992118,2cyclictest1499-21kworker/u8:210:13:043
26554992117,2cyclictest19056-21kworker/u8:211:02:053
2655399212,17cyclictest0-21swapper/210:03:042
26553992118,2cyclictest3977-21kworker/u8:011:52:042
26553992118,2cyclictest26427-21kworker/u8:011:35:052
26553992118,2cyclictest2526-21kworker/u8:007:35:042
26553992118,2cyclictest2153-21kworker/u8:009:41:052
2655499202,2cyclictest0-21swapper/309:49:043
26554992017,2cyclictest6851-21kworker/u8:109:18:043
26554992017,2cyclictest29455-21kworker/u8:211:53:043
26554992017,2cyclictest26427-21kworker/u8:011:14:013
26554992017,2cyclictest15432-21kworker/u8:209:52:023
26554992017,2cyclictest12329-21kworker/u8:111:59:053
26553992017,2cyclictest4218-21kworker/u8:112:27:052
26553992017,2cyclictest4218-21kworker/u8:112:27:042
26553992017,2cyclictest29455-21kworker/u8:212:36:042
26553992017,2cyclictest26427-21kworker/u8:011:42:052
26553992017,2cyclictest18565-21kworker/u8:108:25:042
26553992017,2cyclictest18094-21kworker/u8:007:19:052
26553992017,2cyclictest17610-21kworker/u8:012:04:052
26553992017,2cyclictest13910-21kworker/u8:012:34:062
26553992017,2cyclictest13372-21kworker/u8:010:23:052
2655399201,17cyclictest0-21swapper/212:17:042
2655399200,18cyclictest0-21swapper/210:56:052
2655399200,18cyclictest0-21swapper/210:40:052
26551992017,2cyclictest10459-21kworker/u8:110:53:040
2655199200,5cyclictest0-21swapper/010:27:040
2655199200,19cyclictest0-21swapper/010:30:120
2655199200,18cyclictest0-21swapper/011:20:130
2655199200,18cyclictest0-21swapper/007:40:120
26554991916,2cyclictest4218-21kworker/u8:112:28:063
26554991916,2cyclictest4218-21kworker/u8:112:28:053
26554991916,2cyclictest26427-21kworker/u8:011:31:053
26553991916,2cyclictest7065-21kworker/u8:110:17:052
26553991916,2cyclictest30847-21kworker/u8:107:21:052
26553991916,2cyclictest26427-21kworker/u8:011:18:052
26553991916,2cyclictest2526-21kworker/u8:007:41:052
26553991916,2cyclictest23029-21kworker/u8:009:08:052
26553991916,2cyclictest23029-21kworker/u8:008:43:042
26553991916,2cyclictest23029-21kworker/u8:008:36:062
26553991916,2cyclictest18565-21kworker/u8:108:32:052
26553991916,2cyclictest18565-21kworker/u8:108:17:042
2655399190,17cyclictest0-21swapper/209:33:052
2655299190,2cyclictest0-21swapper/111:39:051
26551991916,2cyclictest18297-21kworker/u8:111:49:050
2655199190,2cyclictest25844-21ssh11:39:050
2655199190,18cyclictest0-21swapper/012:20:060
2655199190,18cyclictest0-21swapper/012:11:050
151072190,1sleep10-21swapper/112:35:121
26554991815,2cyclictest6851-21kworker/u8:109:11:053
26554991815,2cyclictest28357-21kworker/u8:012:16:043
26554991815,2cyclictest20402-21kworker/u8:110:00:013
26554991815,2cyclictest13372-21kworker/u8:010:24:053
26554991815,2cyclictest12403-21kworker/u8:211:26:043
26553991815,2cyclictest31542-21kworker/u8:110:38:042
26553991815,2cyclictest29455-21kworker/u8:212:20:022
26553991815,2cyclictest26427-21kworker/u8:011:23:052
26553991815,2cyclictest2526-21kworker/u8:008:14:052
26553991815,2cyclictest2526-21kworker/u8:007:45:052
26553991815,2cyclictest23029-21kworker/u8:009:01:052
26553991815,2cyclictest23029-21kworker/u8:008:58:052
26553991815,2cyclictest17610-21kworker/u8:012:10:052
26553991815,2cyclictest17610-21kworker/u8:012:06:022
26553991815,2cyclictest10891-21kworker/u8:209:25:052
26553991815,2cyclictest10891-21kworker/u8:209:25:052
2655399180,2cyclictest0-21swapper/210:28:052
2655399180,17cyclictest0-21swapper/211:04:042
2655399180,17cyclictest0-21swapper/210:47:052
2655199180,17cyclictest0-21swapper/011:44:040
26554991714,2cyclictest29455-21kworker/u8:211:43:053
26554991714,2cyclictest26427-21kworker/u8:011:24:063
26554991714,2cyclictest24402-21kworker/u8:111:06:053
26554991714,2cyclictest1499-21kworker/u8:210:34:053
26554991714,2cyclictest1499-21kworker/u8:210:26:043
26553991714,2cyclictest26427-21kworker/u8:010:33:052
26553991714,2cyclictest24450-21kworker/u8:207:12:052
2655399170,2cyclictest0-21swapper/211:33:052
2655399170,2cyclictest0-21swapper/210:10:052
2655399170,16cyclictest0-21swapper/211:29:042
26552991713,2cyclictest15432-21kworker/u8:209:49:051
26554991613,2cyclictest30847-21kworker/u8:107:28:053
26554991613,2cyclictest30847-21kworker/u8:107:22:053
26554991613,2cyclictest29455-21kworker/u8:211:47:053
26554991613,2cyclictest26427-21kworker/u8:010:59:053
26554991613,2cyclictest2526-21kworker/u8:008:07:053
26554991613,2cyclictest2526-21kworker/u8:007:47:053
26554991613,2cyclictest23320-21kworker/u8:112:14:053
26554991613,2cyclictest23029-21kworker/u8:008:56:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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