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2026-06-14 - 19:46

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 Sun Jun 14, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22028211696,15sleep10-21swapper/107:09:371
219902114103,6sleep20-21swapper/207:09:102
21279210998,6sleep30-21swapper/307:05:213
21844210594,6sleep00-21swapper/007:07:160
222682780,0sleep00-21swapper/009:26:010
319902760,0sleep30-21swapper/311:55:513
96472730,1sleep10-21swapper/107:56:031
193162710,0sleep00-21swapper/012:17:050
178082580,1sleep20-21swapper/212:15:192
223192280,5sleep12208699cyclictest09:26:021
189382260,0sleep10-21swapper/109:57:091
232222250,1sleep223221-21munin-node2
2208599230,22cyclictest0-21swapper/010:15:120
2208799220,3cyclictest26564-21sh10:40:152
2208799210,3cyclictest23740-21ssh09:27:552
2208799210,2cyclictest0-21swapper/210:23:532
2208599210,19cyclictest0-21swapper/008:05:140
22088992017,2cyclictest3570-21kworker/u8:009:50:063
22088992017,2cyclictest21168-21kworker/u8:112:04:053
2208799200,3cyclictest8514-21missed_timers11:30:152
2208799200,3cyclictest27219-21sh11:50:392
2208799200,3cyclictest27219-21sh11:50:392
2208799200,3cyclictest20107-21sh11:08:272
2208799200,3cyclictest1205-21ssh12:32:552
2208799200,3cyclictest0-21swapper/210:45:502
2208799200,3cyclictest0-21swapper/209:44:352
2208799200,3cyclictest0-21swapper/209:15:072
2208799200,3cyclictest0-21swapper/208:50:192
2208799200,2cyclictest6106-21diskmemload11:00:272
2208799200,2cyclictest25726-21apt-get10:05:152
2208799200,2cyclictest0-21swapper/211:17:092
2208799200,2cyclictest0-21swapper/210:30:092
2208799200,2cyclictest0-21swapper/209:50:512
2208799200,2cyclictest0-21swapper/209:24:042
2208799200,2cyclictest0-21swapper/207:15:142
2208799200,19cyclictest0-21swapper/210:53:052
2208799200,18cyclictest0-21swapper/212:00:392
2208799200,18cyclictest0-21swapper/210:55:462
22086992017,2cyclictest23278-21kworker/u8:010:38:041
22088991916,2cyclictest2169-21kworker/u8:210:56:053
2208799190,3cyclictest8574-21ssh09:11:232
2208799190,3cyclictest6106-21diskmemload10:11:352
2208799190,3cyclictest4155-21ssh10:16:032
2208799190,3cyclictest31234-21ssh09:35:312
2208799190,3cyclictest27670-21sh09:31:382
2208799190,3cyclictest0-21swapper/212:25:272
2208799190,3cyclictest0-21swapper/212:22:342
2208799190,3cyclictest0-21swapper/212:14:552
2208799190,2cyclictest23504-21ssh10:01:552
2208799190,2cyclictest0-21swapper/212:06:072
2208799190,2cyclictest0-21swapper/211:44:432
2208799190,2cyclictest0-21swapper/211:35:102
2208799190,2cyclictest0-21swapper/211:10:102
2208799190,2cyclictest0-21swapper/210:25:152
2208799190,2cyclictest0-21swapper/209:56:102
2208799190,2cyclictest0-21swapper/209:45:172
2208799190,2cyclictest0-21swapper/208:45:182
2208799190,2cyclictest0-21swapper/207:54:272
2208799190,2cyclictest0-21swapper/207:35:132
2208799190,17cyclictest0-21swapper/211:56:142
22086991915,3cyclictest28250-21kworker/u8:109:39:051
22088991815,2cyclictest17700-21kworker/u8:209:22:053
22088991815,2cyclictest16842-21kworker/u8:311:07:043
2208799180,3cyclictest0-21swapper/208:25:112
2208799180,2cyclictest2139-21apt-get09:00:112
2208799180,2cyclictest0-21swapper/212:36:112
2208799180,2cyclictest0-21swapper/211:45:242
2208799180,2cyclictest0-21swapper/211:25:252
2208799180,2cyclictest0-21swapper/211:20:192
2208799180,2cyclictest0-21swapper/210:37:342
2208799180,2cyclictest0-21swapper/209:05:502
2208799180,2cyclictest0-21swapper/208:55:152
2208799180,2cyclictest0-21swapper/208:00:152
2208799180,2cyclictest0-21swapper/207:55:152
2208799180,2cyclictest0-21swapper/207:30:152
2208799180,2cyclictest0-21swapper/207:20:192
22088991714,2cyclictest7670-21kworker/u8:111:35:043
22088991713,2cyclictest29988-21kworker/u8:210:33:043
2208799171,14cyclictest18781-21grep08:20:132
2208799170,2cyclictest0-21swapper/208:43:262
2208799170,2cyclictest0-21swapper/208:31:272
2208799170,2cyclictest0-21swapper/208:19:592
2208799170,2cyclictest0-21swapper/208:19:582
2208799170,2cyclictest0-21swapper/208:10:192
2208799170,2cyclictest0-21swapper/208:06:032
2208799170,2cyclictest0-21swapper/207:40:152
2208799170,2cyclictest0-21swapper/207:25:072
22086991714,2cyclictest14151-21kworker/u8:011:41:041
22088991613,2cyclictest5151-21kworker/u8:012:08:013
22088991613,2cyclictest29988-21kworker/u8:210:21:043
22088991613,2cyclictest28250-21kworker/u8:110:13:053
22088991613,2cyclictest24613-21kworker/u8:008:46:043
22088991613,2cyclictest14424-21kworker/u8:011:04:053
22088991613,2cyclictest14151-21kworker/u8:011:50:053
22088991613,2cyclictest14151-21kworker/u8:011:50:053
22088991612,3cyclictest29988-21kworker/u8:210:16:063
2208899161,13cyclictest29317-21munin-node3
2208799160,2cyclictest0-21swapper/208:36:072
2208799160,2cyclictest0-21swapper/207:45:032
22086991613,2cyclictest29693-21kworker/u8:112:30:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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