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2025-11-11 - 08:29

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 Tue Nov 11, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21302323308,5sleep20-21swapper/219:07:372
22982315308,4sleep10-21swapper/119:09:441
20212315308,5sleep00-21swapper/019:06:100
19992314307,5sleep30-21swapper/319:05:533
2585993030,300cyclictest14141-21kworker/u16:1+efi_rts_wq21:35:143
2582993030,301cyclictest15495-21kworker/u16:2+efi_rts_wq19:55:150
2582993020,300cyclictest17099-21kworker/u16:2+efi_rts_wq23:40:140
2582993010,300cyclictest14141-21kworker/u16:1+efi_rts_wq22:25:390
2583993000,299cyclictest15495-21kworker/u16:2+efi_rts_wq20:15:141
2582993000,298cyclictest14141-21kworker/u16:1+efi_rts_wq21:25:150
2585992970,296cyclictest15495-21kworker/u16:2+efi_rts_wq20:20:163
2584992970,294cyclictest5551-21kworker/u16:0+efi_rts_wq19:45:122
2584992960,295cyclictest370-21kworker/u16:1+efi_rts_wq00:30:142
2582992960,295cyclictest17099-21kworker/u16:2+efi_rts_wq23:30:130
2585992950,293cyclictest2203-21kworker/u16:0+efi_rts_wq23:00:143
2585992950,293cyclictest15495-21kworker/u16:2+efi_rts_wq22:30:143
2582992950,294cyclictest5551-21kworker/u16:0+efi_rts_wq19:45:120
2582992950,294cyclictest14141-21kworker/u16:1+efi_rts_wq20:50:130
2582992940,293cyclictest15495-21kworker/u16:2+efi_rts_wq21:20:140
2585992930,292cyclictest370-21kworker/u16:1+efi_rts_wq00:15:173
2584992930,292cyclictest31441-21kworker/u16:3+efi_rts_wq19:20:072
2582992910,290cyclictest17099-21kworker/u16:2+efi_rts_wq23:50:160
2582992910,290cyclictest15495-21kworker/u16:2+efi_rts_wq21:40:150
2583992890,288cyclictest15495-21kworker/u16:2+efi_rts_wq22:10:121
2582992890,287cyclictest14141-21kworker/u16:1+efi_rts_wq19:50:170
2585992870,286cyclictest2203-21kworker/u16:0+efi_rts_wq23:20:133
2585992870,286cyclictest14141-21kworker/u16:1+efi_rts_wq22:25:163
2583992860,285cyclictest14141-21kworker/u16:1+efi_rts_wq21:45:171
2584992850,283cyclictest2821-21kworker/u16:3+efi_rts_wq00:35:162
2582992840,282cyclictest24449-21kworker/u16:3+efi_rts_wq23:05:140
2582992830,282cyclictest15495-21kworker/u16:2+efi_rts_wq21:30:130
2583992820,281cyclictest15495-21kworker/u16:2+efi_rts_wq19:40:131
2585992810,280cyclictest21677-21kworker/u16:0+efi_rts_wq23:55:133
2583992810,280cyclictest17099-21kworker/u16:2+efi_rts_wq23:40:141
2583992800,279cyclictest14141-21kworker/u16:1+efi_rts_wq22:05:131
2582992790,278cyclictest14141-21kworker/u16:1+efi_rts_wq21:15:110
2585992780,277cyclictest14141-21kworker/u16:1+efi_rts_wq20:00:153
2585992780,276cyclictest15495-21kworker/u16:2+efi_rts_wq19:20:133
2584992780,277cyclictest15495-21kworker/u16:2+efi_rts_wq20:55:142
2583992780,277cyclictest21677-21kworker/u16:0+efi_rts_wq00:00:131
2582992770,276cyclictest15495-21kworker/u16:2+efi_rts_wq19:10:150
2584992760,274cyclictest15495-21kworker/u16:2+efi_rts_wq22:45:432
2585992750,274cyclictest2821-21kworker/u16:3+efi_rts_wq00:26:013
2585992750,274cyclictest2821-21kworker/u16:3+efi_rts_wq00:26:013
2583992750,274cyclictest21677-21kworker/u16:0+efi_rts_wq23:50:541
2583992740,273cyclictest14141-21kworker/u16:1+efi_rts_wq20:10:131
2582992740,273cyclictest14141-21kworker/u16:1+efi_rts_wq22:00:140
2585992730,272cyclictest2821-21kworker/u16:3+efi_rts_wq00:10:583
2584992730,271cyclictest14141-21kworker/u16:1+efi_rts_wq21:05:142
2582992730,272cyclictest2203-21kworker/u16:0+efi_rts_wq23:20:130
2585992720,270cyclictest14141-21kworker/u16:1+efi_rts_wq21:05:143
2582992700,269cyclictest17099-21kworker/u16:2+efi_rts_wq23:45:140
2585992650,264cyclictest15495-21kworker/u16:2+efi_rts_wq21:10:243
2585992650,264cyclictest14141-21kworker/u16:1+efi_rts_wq20:10:143
2585992650,264cyclictest14141-21kworker/u16:1+efi_rts_wq19:50:173
2585992640,263cyclictest24449-21kworker/u16:3+efi_rts_wq23:05:143
2583992640,263cyclictest15495-21kworker/u16:2+efi_rts_wq21:00:231
2582992640,263cyclictest15495-21kworker/u16:2+efi_rts_wq20:15:140
2585992630,262cyclictest15495-21kworker/u16:2+efi_rts_wq22:55:143
2583992600,259cyclictest5551-21kworker/u16:0+efi_rts_wq19:30:161
2583992600,258cyclictest15495-21kworker/u16:2+efi_rts_wq22:50:151
2585992590,258cyclictest370-21kworker/u16:1+efi_rts_wq00:20:153
2584992580,257cyclictest14141-21kworker/u16:1+efi_rts_wq21:35:152
2583992560,255cyclictest2821-21kworker/u16:3+efi_rts_wq00:10:131
2585992550,254cyclictest15495-21kworker/u16:2+efi_rts_wq19:45:103
2584992550,254cyclictest14141-21kworker/u16:1+efi_rts_wq20:25:122
2583992530,252cyclictest15495-21kworker/u16:2+efi_rts_wq20:00:111
2585992510,250cyclictest15495-21kworker/u16:2+efi_rts_wq21:50:153
2583992500,248cyclictest2821-21kworker/u16:3+efi_rts_wq00:05:141
2584992490,248cyclictest14141-21kworker/u16:1+efi_rts_wq20:40:192
2583992480,247cyclictest15495-21kworker/u16:2+efi_rts_wq22:35:161
2585992470,246cyclictest5551-21kworker/u16:0+efi_rts_wq19:25:133
2583992470,246cyclictest15495-21kworker/u16:2+efi_rts_wq22:55:141
2582992430,242cyclictest24449-21kworker/u16:3+efi_rts_wq22:40:150
2583992410,240cyclictest12219-21kworker/u16:1+efi_rts_wq23:35:141
2585992400,239cyclictest2203-21kworker/u16:0+efi_rts_wq23:10:133
2585992400,238cyclictest15495-21kworker/u16:2+efi_rts_wq22:45:103
2584992400,239cyclictest2203-21kworker/u16:0+efi_rts_wq23:15:482
2584992400,239cyclictest17099-21kworker/u16:2+efi_rts_wq23:45:532
2583992400,239cyclictest12219-21kworker/u16:1+efi_rts_wq23:25:501
2584992380,237cyclictest21677-21kworker/u16:0+efi_rts_wq23:55:552
2582992380,237cyclictest14141-21kworker/u16:1+efi_rts_wq22:15:150
2582992380,237cyclictest14141-21kworker/u16:1+efi_rts_wq20:00:140
2584992340,233cyclictest15495-21kworker/u16:2+efi_rts_wq22:10:122
2584992330,232cyclictest370-21kworker/u16:1+efi_rts_wq00:21:002
2582992330,232cyclictest14141-21kworker/u16:1+efi_rts_wq20:35:140
2585992270,225cyclictest14141-21kworker/u16:1+efi_rts_wq20:40:143
2584992250,224cyclictest14141-21kworker/u16:1+efi_rts_wq22:00:132
2583992250,224cyclictest24449-21kworker/u16:3+efi_rts_wq23:10:471
2585992210,220cyclictest12219-21kworker/u16:1+efi_rts_wq23:35:143
2585992180,215cyclictest14141-21kworker/u16:1+efi_rts_wq22:05:133
2584992170,216cyclictest15495-21kworker/u16:2+efi_rts_wq22:35:162
2582992170,216cyclictest5551-21kworker/u16:0+efi_rts_wq19:35:130
2583992160,215cyclictest14141-21kworker/u16:1+efi_rts_wq22:00:341
2585992150,213cyclictest15495-21kworker/u16:2+efi_rts_wq22:35:163
2582992140,213cyclictest17099-21kworker/u16:2+efi_rts_wq23:25:160
2585992100,209cyclictest31441-21kworker/u16:3+efi_rts_wq19:15:163
2584992080,207cyclictest15495-21kworker/u16:2+efi_rts_wq21:20:262
2585992050,204cyclictest15495-21kworker/u16:2+efi_rts_wq22:10:363
2585992050,204cyclictest15495-21kworker/u16:2+efi_rts_wq21:55:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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