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2026-06-13 - 04:30

OSADL QA Farm on Real-time of Mainline Linux

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

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot3s.osadl.org (updated Sat Jun 13, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120072317303,5sleep00-21swapper/019:05:240
120052317310,5sleep30-21swapper/319:05:223
121142315308,4sleep10-21swapper/119:06:451
120092313307,4sleep20-21swapper/219:05:262
12636992970,296cyclictest22885-21kworker/u16:3+efi_rts_wq21:24:153
12635992960,295cyclictest8186-21kworker/u16:1+efi_rts_wq21:15:122
12635992950,294cyclictest4471-21kworker/u16:0+efi_rts_wq23:10:102
12635992950,294cyclictest4471-21kworker/u16:0+efi_rts_wq22:50:122
12634992950,294cyclictest22885-21kworker/u16:3+efi_rts_wq20:20:101
12634992940,293cyclictest8186-21kworker/u16:1+efi_rts_wq19:50:121
12636992920,291cyclictest8186-21kworker/u16:1+efi_rts_wq20:04:013
12634992920,291cyclictest8186-21kworker/u16:1+efi_rts_wq21:10:111
12634992910,290cyclictest5354-21kworker/u16:2+efi_rts_wq00:20:131
12636992900,289cyclictest21457-21kworker/u16:1+efi_rts_wq23:55:123
12636992890,288cyclictest22885-21kworker/u16:3+efi_rts_wq22:30:093
12635992880,287cyclictest8186-21kworker/u16:1+efi_rts_wq21:00:112
12634992870,286cyclictest8186-21kworker/u16:1+efi_rts_wq20:05:131
12636992850,284cyclictest22885-21kworker/u16:3+efi_rts_wq20:35:123
12635992850,284cyclictest22885-21kworker/u16:3+efi_rts_wq22:40:112
12634992850,284cyclictest21457-21kworker/u16:1+efi_rts_wq00:10:131
12633992840,283cyclictest22885-21kworker/u16:3+efi_rts_wq19:15:120
12633992840,283cyclictest21457-21kworker/u16:1+efi_rts_wq23:44:430
12636992830,282cyclictest22885-21kworker/u16:3+efi_rts_wq21:30:123
12635992830,282cyclictest22885-21kworker/u16:3+efi_rts_wq19:35:132
12634992830,282cyclictest4471-21kworker/u16:0+efi_rts_wq23:35:121
12633992830,282cyclictest22885-21kworker/u16:3+efi_rts_wq22:05:120
12633992820,281cyclictest8186-21kworker/u16:1+efi_rts_wq22:19:270
12633992820,281cyclictest3063-21kworker/u16:3+efi_rts_wq23:50:120
12633992810,280cyclictest4471-21kworker/u16:0+efi_rts_wq23:00:120
12634992790,278cyclictest8186-21kworker/u16:1+efi_rts_wq19:40:101
12633992790,278cyclictest22885-21kworker/u16:3+efi_rts_wq19:45:130
12636992780,277cyclictest22885-21kworker/u16:3+efi_rts_wq19:28:543
12634992770,276cyclictest22885-21kworker/u16:3+efi_rts_wq23:15:111
12633992770,276cyclictest8186-21kworker/u16:1+efi_rts_wq20:55:130
12635992760,275cyclictest3063-21kworker/u16:3+efi_rts_wq23:45:112
12635992760,275cyclictest22885-21kworker/u16:3+efi_rts_wq21:40:122
12636992750,273cyclictest8186-21kworker/u16:1+efi_rts_wq19:20:123
12635992750,274cyclictest5354-21kworker/u16:2+efi_rts_wq00:15:132
12634992750,272cyclictest8186-21kworker/u16:1+efi_rts_wq21:55:141
12633992730,272cyclictest22885-21kworker/u16:3+efi_rts_wq21:25:100
12636992710,270cyclictest22885-21kworker/u16:3+efi_rts_wq22:49:333
12633992710,270cyclictest8186-21kworker/u16:1+efi_rts_wq19:55:130
12634992690,268cyclictest8186-21kworker/u16:1+efi_rts_wq20:55:121
12633992690,268cyclictest8186-21kworker/u16:1+efi_rts_wq22:20:120
12636992680,267cyclictest8186-21kworker/u16:1+efi_rts_wq19:50:113
12635992680,266cyclictest22885-21kworker/u16:3+efi_rts_wq23:04:342
12636992670,266cyclictest21457-21kworker/u16:1+efi_rts_wq00:10:133
12636992670,266cyclictest21457-21kworker/u16:1+efi_rts_wq00:01:133
12634992670,265cyclictest4471-21kworker/u16:0+efi_rts_wq23:00:121
12634992670,265cyclictest4471-21kworker/u16:0+efi_rts_wq22:50:121
12633992670,265cyclictest22885-21kworker/u16:3+efi_rts_wq22:30:100
12636992650,264cyclictest22885-21kworker/u16:3+efi_rts_wq20:50:103
12634992650,264cyclictest21457-21kworker/u16:1+efi_rts_wq23:20:121
12633992650,264cyclictest4471-21kworker/u16:0+efi_rts_wq23:35:120
12633992650,264cyclictest22885-21kworker/u16:3+efi_rts_wq20:30:130
12636992640,263cyclictest8186-21kworker/u16:1+efi_rts_wq22:15:113
12635992640,263cyclictest8186-21kworker/u16:1+efi_rts_wq20:25:112
12633992640,263cyclictest8186-21kworker/u16:1+efi_rts_wq21:20:110
12636992590,258cyclictest22885-21kworker/u16:3+efi_rts_wq21:29:163
12633992590,258cyclictest22885-21kworker/u16:3+efi_rts_wq20:10:110
12636992580,257cyclictest5354-21kworker/u16:2+efi_rts_wq00:16:163
12633992580,256cyclictest22885-21kworker/u16:3+efi_rts_wq20:15:110
12635992570,256cyclictest22885-21kworker/u16:3+efi_rts_wq22:25:132
12633992540,253cyclictest22885-21kworker/u16:3+efi_rts_wq21:05:130
12633992540,253cyclictest22885-21kworker/u16:3+efi_rts_wq21:05:120
12636992530,252cyclictest8186-21kworker/u16:1+efi_rts_wq21:10:123
12636992530,252cyclictest8186-21kworker/u16:1+efi_rts_wq20:29:073
12636992500,249cyclictest4471-21kworker/u16:0+efi_rts_wq23:40:133
12633992470,246cyclictest22885-21kworker/u16:3+efi_rts_wq22:40:120
12636992460,245cyclictest8186-21kworker/u16:1+efi_rts_wq21:04:123
12635992450,244cyclictest22885-21kworker/u16:3+efi_rts_wq23:05:132
12634992450,244cyclictest4471-21kworker/u16:0+efi_rts_wq23:30:121
12633992450,243cyclictest5354-21kworker/u16:2+efi_rts_wq00:25:130
12635992440,243cyclictest22885-21kworker/u16:3+efi_rts_wq19:45:132
12636992430,242cyclictest22885-21kworker/u16:3+efi_rts_wq19:38:573
12635992430,242cyclictest8186-21kworker/u16:1+efi_rts_wq19:15:012
12636992420,241cyclictest8186-21kworker/u16:1+efi_rts_wq21:50:123
12634992420,241cyclictest22885-21kworker/u16:3+efi_rts_wq21:30:111
12635992400,239cyclictest8186-21kworker/u16:1+efi_rts_wq19:30:112
12636992390,238cyclictest22885-21kworker/u16:3+efi_rts_wq20:34:073
12635992390,238cyclictest8186-21kworker/u16:1+efi_rts_wq21:09:142
12635992390,238cyclictest8186-21kworker/u16:1+efi_rts_wq21:09:132
12634992390,238cyclictest22885-21kworker/u16:3+efi_rts_wq22:35:111
12634992390,238cyclictest21457-21kworker/u16:1+efi_rts_wq00:05:161
12634992380,237cyclictest22885-21kworker/u16:3+efi_rts_wq20:15:121
12633992380,237cyclictest8186-21kworker/u16:1+efi_rts_wq22:00:110
12633992370,236cyclictest22885-21kworker/u16:3+efi_rts_wq19:25:130
12633992360,235cyclictest5354-21kworker/u16:2+efi_rts_wq00:30:120
12633992360,235cyclictest22885-21kworker/u16:3+efi_rts_wq20:09:030
12633992350,234cyclictest4471-21kworker/u16:0+efi_rts_wq22:59:340
12635992320,231cyclictest22885-21kworker/u16:3+efi_rts_wq20:24:052
12634992320,231cyclictest22885-21kworker/u16:3+efi_rts_wq20:44:081
12636992310,230cyclictest22885-21kworker/u16:3+efi_rts_wq22:04:233
12633992310,230cyclictest5354-21kworker/u16:2+efi_rts_wq00:36:210
12633992300,229cyclictest21457-21kworker/u16:1+efi_rts_wq00:15:130
12636992290,228cyclictest8186-21kworker/u16:1+efi_rts_wq19:40:103
12635992290,228cyclictest4471-21kworker/u16:0+efi_rts_wq23:30:122
12635992280,227cyclictest5354-21kworker/u16:2+efi_rts_wq00:26:182
12635992260,225cyclictest8186-21kworker/u16:1+efi_rts_wq22:35:112
12634992260,225cyclictest22885-21kworker/u16:3+efi_rts_wq20:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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