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2026-05-30 - 10:37

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 May 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
102042326319,4sleep20-21swapper/219:09:332
101422319304,5sleep00-21swapper/019:08:470
100532319312,4sleep30-21swapper/319:07:383
100712316308,5sleep10-21swapper/119:07:511
10505993000,299cyclictest10901-21kworker/u16:1+efi_rts_wq00:16:113
10503992980,297cyclictest31446-21kworker/u16:2+efi_rts_wq00:26:151
10505992970,294cyclictest10646-21kworker/u16:4+efi_rts_wq23:10:113
10502992970,296cyclictest7614-21kworker/u16:0+efi_rts_wq22:50:120
10505992950,294cyclictest17794-21kworker/u16:2+efi_rts_wq21:09:473
10503992920,291cyclictest16156-21kworker/u16:1+efi_rts_wq19:30:121
10503992920,291cyclictest10901-21kworker/u16:1+efi_rts_wq00:20:121
10503992900,288cyclictest31446-21kworker/u16:2+efi_rts_wq23:50:121
10505992890,288cyclictest16156-21kworker/u16:1+efi_rts_wq20:35:123
10502992890,288cyclictest16156-21kworker/u16:1+efi_rts_wq19:55:130
10502992890,287cyclictest31446-21kworker/u16:2+efi_rts_wq23:45:110
10502992890,287cyclictest30772-21kworker/u16:3+efi_rts_wq22:30:110
10504992880,287cyclictest19121-21kworker/u16:3+efi_rts_wq21:20:132
10502992880,287cyclictest19121-21kworker/u16:3+efi_rts_wq21:15:110
10503992870,286cyclictest30772-21kworker/u16:3+efi_rts_wq23:20:121
10502992870,286cyclictest19121-21kworker/u16:3+efi_rts_wq22:05:120
10505992860,285cyclictest10901-21kworker/u16:1+efi_rts_wq00:35:123
10503992860,285cyclictest31446-21kworker/u16:2+efi_rts_wq00:10:151
10503992860,285cyclictest31446-21kworker/u16:2+efi_rts_wq00:10:151
10503992860,285cyclictest19121-21kworker/u16:3+efi_rts_wq21:19:481
10503992860,285cyclictest16156-21kworker/u16:1+efi_rts_wq19:50:121
10502992860,285cyclictest30772-21kworker/u16:3+efi_rts_wq23:15:100
10505992850,284cyclictest16156-21kworker/u16:1+efi_rts_wq19:25:113
10503992850,284cyclictest16156-21kworker/u16:1+efi_rts_wq19:45:121
10505992840,283cyclictest19121-21kworker/u16:3+efi_rts_wq20:20:133
10505992840,283cyclictest17794-21kworker/u16:2+efi_rts_wq21:55:123
10503992840,283cyclictest10901-21kworker/u16:1+efi_rts_wq23:40:171
10502992840,283cyclictest19121-21kworker/u16:3+efi_rts_wq21:00:130
10505992830,282cyclictest19121-21kworker/u16:3+efi_rts_wq21:24:503
10504992830,282cyclictest16156-21kworker/u16:1+efi_rts_wq20:25:122
10502992830,282cyclictest7614-21kworker/u16:0+efi_rts_wq23:35:120
10503992820,281cyclictest17794-21kworker/u16:2+efi_rts_wq22:09:571
10504992810,280cyclictest10646-21kworker/u16:4+efi_rts_wq23:10:122
10503992800,279cyclictest10901-21kworker/u16:1+efi_rts_wq23:05:151
10502992800,278cyclictest1906-21kworker/u16:0+efi_rts_wq19:15:110
10503992790,278cyclictest19121-21kworker/u16:3+efi_rts_wq21:20:131
10502992790,278cyclictest10646-21kworker/u16:4+efi_rts_wq23:00:120
10503992780,277cyclictest19121-21kworker/u16:3+efi_rts_wq19:59:311
10502992780,277cyclictest19121-21kworker/u16:3+efi_rts_wq21:05:130
10502992780,277cyclictest16156-21kworker/u16:1+efi_rts_wq19:50:130
10505992770,276cyclictest1906-21kworker/u16:0+efi_rts_wq19:14:243
10503992770,276cyclictest19121-21kworker/u16:3+efi_rts_wq19:35:111
10503992770,275cyclictest7614-21kworker/u16:0+efi_rts_wq23:30:121
10502992770,276cyclictest19121-21kworker/u16:3+efi_rts_wq20:59:450
10504992760,274cyclictest7614-21kworker/u16:0+efi_rts_wq23:35:132
10504992750,274cyclictest19121-21kworker/u16:3+efi_rts_wq21:05:122
10504992750,274cyclictest10646-21kworker/u16:4+efi_rts_wq23:00:092
10502992750,274cyclictest19121-21kworker/u16:3+efi_rts_wq20:09:340
10502992730,272cyclictest30772-21kworker/u16:3+efi_rts_wq22:45:110
10502992720,271cyclictest16156-21kworker/u16:1+efi_rts_wq20:10:120
10502992720,269cyclictest19121-21kworker/u16:3+efi_rts_wq20:15:130
10504992710,270cyclictest10901-21kworker/u16:1+efi_rts_wq00:05:142
10503992710,269cyclictest17794-21kworker/u16:2+efi_rts_wq22:30:031
10502992710,270cyclictest19121-21kworker/u16:3+efi_rts_wq21:34:520
10502992710,270cyclictest16156-21kworker/u16:1+efi_rts_wq20:00:110
10503992700,269cyclictest17794-21kworker/u16:2+efi_rts_wq21:30:111
10502992700,269cyclictest10901-21kworker/u16:1+efi_rts_wq00:05:130
10502992700,268cyclictest10646-21kworker/u16:4+efi_rts_wq23:10:120
10502992690,268cyclictest19121-21kworker/u16:3+efi_rts_wq19:40:120
10503992660,265cyclictest16156-21kworker/u16:1+efi_rts_wq20:10:131
10502992660,265cyclictest17794-21kworker/u16:2+efi_rts_wq21:10:120
10502992650,264cyclictest19121-21kworker/u16:3+efi_rts_wq20:39:400
10505992640,263cyclictest19121-21kworker/u16:3+efi_rts_wq21:35:143
10503992640,263cyclictest19121-21kworker/u16:3+efi_rts_wq21:05:121
10502992630,261cyclictest31446-21kworker/u16:2+efi_rts_wq23:55:110
10504992610,260cyclictest30772-21kworker/u16:3+efi_rts_wq23:15:122
10502992590,258cyclictest10901-21kworker/u16:1+efi_rts_wq22:20:130
10505992570,256cyclictest17794-21kworker/u16:2+efi_rts_wq22:35:143
10504992560,255cyclictest19121-21kworker/u16:3+efi_rts_wq19:35:112
10503992560,255cyclictest10901-21kworker/u16:1+efi_rts_wq00:00:131
10503992520,251cyclictest19121-21kworker/u16:3+efi_rts_wq20:49:421
10503992500,249cyclictest17794-21kworker/u16:2+efi_rts_wq22:45:051
10502992490,248cyclictest17794-21kworker/u16:2+efi_rts_wq21:50:120
10505992460,242cyclictest31446-21kworker/u16:2+efi_rts_wq23:55:123
10504992420,241cyclictest19121-21kworker/u16:3+efi_rts_wq21:40:132
10503992420,241cyclictest10646-21kworker/u16:4+efi_rts_wq22:55:071
10505992400,239cyclictest30772-21kworker/u16:3+efi_rts_wq23:20:103
10505992380,237cyclictest19121-21kworker/u16:3+efi_rts_wq21:25:133
10502992380,237cyclictest19121-21kworker/u16:3+efi_rts_wq20:40:130
10503992360,235cyclictest17794-21kworker/u16:2+efi_rts_wq22:10:121
10502992360,235cyclictest31446-21kworker/u16:2+efi_rts_wq00:31:160
10502992360,235cyclictest30772-21kworker/u16:3+efi_rts_wq22:40:120
10502992360,235cyclictest19121-21kworker/u16:3+efi_rts_wq21:40:130
10502992360,235cyclictest10901-21kworker/u16:1+efi_rts_wq22:19:590
10505992350,233cyclictest10901-21kworker/u16:1+efi_rts_wq22:55:113
10504992350,234cyclictest17794-21kworker/u16:2+efi_rts_wq21:50:122
10502992340,233cyclictest10901-21kworker/u16:1+efi_rts_wq23:05:140
10503992330,232cyclictest10901-21kworker/u16:1+efi_rts_wq00:30:131
10503992320,231cyclictest16156-21kworker/u16:1+efi_rts_wq20:25:111
10503992310,230cyclictest19121-21kworker/u16:3+efi_rts_wq21:35:131
10505992290,228cyclictest7614-21kworker/u16:0+efi_rts_wq23:30:143
10503992280,227cyclictest19121-21kworker/u16:3+efi_rts_wq21:29:501
10502992280,227cyclictest17794-21kworker/u16:2+efi_rts_wq22:10:120
10504992270,226cyclictest10901-21kworker/u16:1+efi_rts_wq00:20:122
10502992270,224cyclictest31446-21kworker/u16:2+efi_rts_wq00:25:150
10505992260,223cyclictest16156-21kworker/u16:1+efi_rts_wq20:05:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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