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2026-06-03 - 08:53

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 Wed Jun 03, 2026 00:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281002319307,4sleep20-21swapper/219:07:342
279392317303,5sleep30-21swapper/319:05:313
280392315307,5sleep10-21swapper/119:06:491
279662315308,5sleep00-21swapper/019:05:510
28557993040,301cyclictest25581-21kworker/u16:3+efi_rts_wq00:25:133
28557993020,299cyclictest30049-21kworker/u16:2+efi_rts_wq00:35:133
28557993010,300cyclictest7469-21kworker/u16:0+efi_rts_wq21:05:133
28555992970,296cyclictest4962-21kworker/u16:1+efi_rts_wq23:50:141
28557992960,295cyclictest10552-21kworker/u16:1+efi_rts_wq22:44:453
28555992960,295cyclictest7469-21kworker/u16:0+efi_rts_wq21:09:291
28554992960,295cyclictest27491-21kworker/u16:1+efi_rts_wq23:15:110
28557992940,293cyclictest18298-21kworker/u16:2+efi_rts_wq00:05:173
28555992940,293cyclictest4698-21kworker/u16:0+efi_rts_wq19:59:141
28555992940,293cyclictest19796-21kworker/u16:2+efi_rts_wq23:40:131
28554992940,293cyclictest16950-21kworker/u16:3+efi_rts_wq20:14:180
28556992930,292cyclictest13583-21kworker/u16:3+efi_rts_wq21:25:142
28557992910,290cyclictest13583-21kworker/u16:3+efi_rts_wq21:44:343
28556992910,290cyclictest19796-21kworker/u16:2+efi_rts_wq23:35:112
28554992910,290cyclictest22964-21kworker/u16:1+efi_rts_wq00:15:150
28554992910,290cyclictest20900-21kworker/u16:0+efi_rts_wq20:40:120
28557992900,289cyclictest1104-21kworker/u16:1+efi_rts_wq21:00:143
28554992900,289cyclictest31575-21kworker/u16:2+efi_rts_wq19:29:080
28556992880,287cyclictest31575-21kworker/u16:2+efi_rts_wq19:55:132
28555992880,287cyclictest25286-21kworker/u16:2+efi_rts_wq20:30:141
28556992870,286cyclictest19796-21kworker/u16:2+efi_rts_wq23:19:502
28554992870,286cyclictest19796-21kworker/u16:2+efi_rts_wq23:35:110
28557992860,285cyclictest10552-21kworker/u16:1+efi_rts_wq22:49:473
28556992860,285cyclictest4698-21kworker/u16:0+efi_rts_wq19:10:122
28555992860,285cyclictest20900-21kworker/u16:0+efi_rts_wq20:35:131
28554992840,283cyclictest20146-21kworker/u16:0+efi_rts_wq21:50:150
28557992830,282cyclictest8392-21kworker/u16:3+efi_rts_wq22:25:123
28556992820,281cyclictest9769-21kworker/u16:2+efi_rts_wq21:34:322
28556992820,281cyclictest16950-21kworker/u16:3+efi_rts_wq20:25:122
28555992820,281cyclictest31575-21kworker/u16:2+efi_rts_wq19:40:091
28556992810,280cyclictest30049-21kworker/u16:2+efi_rts_wq00:30:142
28556992810,280cyclictest20146-21kworker/u16:0+efi_rts_wq22:15:132
28554992810,280cyclictest19796-21kworker/u16:2+efi_rts_wq23:25:120
28557992800,279cyclictest31575-21kworker/u16:2+efi_rts_wq19:40:093
28555992800,279cyclictest9769-21kworker/u16:2+efi_rts_wq22:20:131
28555992800,279cyclictest9769-21kworker/u16:2+efi_rts_wq21:40:121
28554992800,279cyclictest17286-21kworker/u16:0+efi_rts_wq22:55:130
28557992790,278cyclictest9769-21kworker/u16:2+efi_rts_wq21:15:133
28557992790,278cyclictest27491-21kworker/u16:1+efi_rts_wq23:15:113
28555992770,276cyclictest8392-21kworker/u16:3+efi_rts_wq22:45:131
28555992760,273cyclictest16950-21kworker/u16:3+efi_rts_wq20:45:141
28557992740,273cyclictest4962-21kworker/u16:1+efi_rts_wq23:30:133
28556992740,273cyclictest9769-21kworker/u16:2+efi_rts_wq21:35:132
28556992730,272cyclictest22964-21kworker/u16:1+efi_rts_wq00:15:152
28555992730,272cyclictest4698-21kworker/u16:0+efi_rts_wq19:45:121
28556992720,271cyclictest24083-21kworker/u16:3+efi_rts_wq19:45:122
28556992720,271cyclictest19796-21kworker/u16:2+efi_rts_wq23:04:492
28555992720,271cyclictest4698-21kworker/u16:0+efi_rts_wq19:19:071
28555992720,271cyclictest20146-21kworker/u16:0+efi_rts_wq22:09:401
28555992720,271cyclictest20146-21kworker/u16:0+efi_rts_wq22:09:391
28557992710,270cyclictest4698-21kworker/u16:0+efi_rts_wq19:50:113
28557992710,270cyclictest25581-21kworker/u16:3+efi_rts_wq00:15:013
28555992710,270cyclictest13583-21kworker/u16:3+efi_rts_wq21:20:131
28555992700,269cyclictest30049-21kworker/u16:2+efi_rts_wq00:35:141
28555992700,269cyclictest24083-21kworker/u16:3+efi_rts_wq19:20:081
28555992670,265cyclictest31575-21kworker/u16:2+efi_rts_wq20:00:141
28555992650,264cyclictest8392-21kworker/u16:3+efi_rts_wq22:30:121
28554992650,264cyclictest4962-21kworker/u16:1+efi_rts_wq23:45:110
28554992650,264cyclictest31438-21kworker/u16:2+efi_rts_wq20:50:130
28555992630,262cyclictest31575-21kworker/u16:2+efi_rts_wq20:10:131
28555992620,261cyclictest9769-21kworker/u16:2+efi_rts_wq21:15:151
28556992610,260cyclictest8392-21kworker/u16:3+efi_rts_wq22:40:122
28555992600,257cyclictest4698-21kworker/u16:0+efi_rts_wq19:50:121
28554992600,259cyclictest25581-21kworker/u16:3+efi_rts_wq00:25:140
28554992600,259cyclictest21134-21kworker/u16:4+efi_rts_wq23:00:130
28554992600,259cyclictest12524-21kworker/u16:1+efi_rts_wq20:05:160
28555992590,258cyclictest19796-21kworker/u16:2+efi_rts_wq23:09:491
28557992580,257cyclictest7469-21kworker/u16:0+efi_rts_wq21:10:133
28555992580,255cyclictest20146-21kworker/u16:0+efi_rts_wq22:10:121
28557992570,256cyclictest22964-21kworker/u16:1+efi_rts_wq00:20:153
28557992550,252cyclictest12524-21kworker/u16:1+efi_rts_wq20:04:153
28554992530,252cyclictest6645-21kworker/u16:1+efi_rts_wq19:10:110
28555992520,251cyclictest9769-21kworker/u16:2+efi_rts_wq22:19:421
28554992520,251cyclictest11986-21kworker/u16:0+efi_rts_wq23:44:550
28557992510,250cyclictest9769-21kworker/u16:2+efi_rts_wq21:30:263
28557992510,250cyclictest13583-21kworker/u16:3+efi_rts_wq21:45:133
28556992510,250cyclictest21134-21kworker/u16:4+efi_rts_wq23:05:142
28554992490,248cyclictest31575-21kworker/u16:2+efi_rts_wq19:30:100
28556992480,247cyclictest31575-21kworker/u16:2+efi_rts_wq19:30:082
28557992470,246cyclictest27491-21kworker/u16:1+efi_rts_wq23:14:503
28554992460,245cyclictest16950-21kworker/u16:3+efi_rts_wq20:20:120
28555992440,243cyclictest20900-21kworker/u16:0+efi_rts_wq20:29:201
28555992440,243cyclictest20146-21kworker/u16:0+efi_rts_wq21:54:361
28555992430,242cyclictest1104-21kworker/u16:1+efi_rts_wq21:04:271
28556992400,239cyclictest20900-21kworker/u16:0+efi_rts_wq20:19:182
28556992380,237cyclictest8392-21kworker/u16:3+efi_rts_wq22:50:122
28555992380,237cyclictest1104-21kworker/u16:1+efi_rts_wq20:59:271
28554992370,236cyclictest32549-21kworker/u16:0+efi_rts_wq23:20:140
28554992370,236cyclictest13583-21kworker/u16:3+efi_rts_wq21:25:120
28557992360,235cyclictest9769-21kworker/u16:2+efi_rts_wq22:05:133
28557992360,235cyclictest9769-21kworker/u16:2+efi_rts_wq22:05:133
28554992330,232cyclictest20146-21kworker/u16:0+efi_rts_wq21:59:370
28557992320,231cyclictest20146-21kworker/u16:0+efi_rts_wq22:10:123
28556992320,231cyclictest9769-21kworker/u16:2+efi_rts_wq22:04:382
28554992320,231cyclictest8392-21kworker/u16:3+efi_rts_wq22:24:420
28554992290,228cyclictest22964-21kworker/u16:1+efi_rts_wq00:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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