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2026-06-24 - 12:59

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 24, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65772320306,4sleep20-21swapper/219:08:162
64412320306,5sleep10-21swapper/119:06:311
65502316308,5sleep00-21swapper/019:07:540
64382315308,5sleep30-21swapper/319:06:293
7031993010,300cyclictest6693-21kworker/u16:0+efi_rts_wq19:50:120
7033992980,297cyclictest16990-21kworker/u16:3+efi_rts_wq23:45:132
7033992970,296cyclictest31031-21kworker/u16:2+efi_rts_wq22:55:132
7033992970,296cyclictest31031-21kworker/u16:2+efi_rts_wq22:30:152
7033992950,294cyclictest11938-21kworker/u16:1+efi_rts_wq23:20:132
7032992950,294cyclictest31031-21kworker/u16:2+efi_rts_wq21:40:131
7032992950,294cyclictest11938-21kworker/u16:1+efi_rts_wq23:35:121
7031992940,293cyclictest24924-21kworker/u16:3+efi_rts_wq22:15:130
7033992930,292cyclictest24924-21kworker/u16:3+efi_rts_wq19:30:122
7032992930,292cyclictest11938-21kworker/u16:1+efi_rts_wq23:25:131
7032992920,291cyclictest24924-21kworker/u16:3+efi_rts_wq21:54:391
7032992910,290cyclictest24924-21kworker/u16:3+efi_rts_wq19:10:121
7032992910,290cyclictest16990-21kworker/u16:3+efi_rts_wq00:30:131
7033992900,289cyclictest6693-21kworker/u16:0+efi_rts_wq19:44:112
7032992880,287cyclictest24924-21kworker/u16:3+efi_rts_wq19:45:121
7034992870,286cyclictest6693-21kworker/u16:0+efi_rts_wq20:05:123
7033992870,286cyclictest11938-21kworker/u16:1+efi_rts_wq23:25:132
7033992870,286cyclictest11938-21kworker/u16:1+efi_rts_wq00:35:122
7032992840,283cyclictest31031-21kworker/u16:2+efi_rts_wq22:20:141
7032992840,283cyclictest31031-21kworker/u16:2+efi_rts_wq21:10:151
7032992840,283cyclictest24924-21kworker/u16:3+efi_rts_wq20:40:131
7034992830,282cyclictest24924-21kworker/u16:3+efi_rts_wq20:45:133
7034992830,282cyclictest11938-21kworker/u16:1+efi_rts_wq23:05:133
7032992830,282cyclictest6693-21kworker/u16:0+efi_rts_wq19:25:141
7031992830,282cyclictest27231-21kworker/u16:0+efi_rts_wq23:10:130
7033992820,281cyclictest27231-21kworker/u16:0+efi_rts_wq23:10:142
7032992820,281cyclictest24924-21kworker/u16:3+efi_rts_wq20:00:131
7031992820,281cyclictest16990-21kworker/u16:3+efi_rts_wq23:19:550
7034992810,280cyclictest16990-21kworker/u16:3+efi_rts_wq00:10:053
7033992810,280cyclictest27231-21kworker/u16:0+efi_rts_wq22:50:132
7033992810,280cyclictest11938-21kworker/u16:1+efi_rts_wq00:30:082
7031992810,280cyclictest11938-21kworker/u16:1+efi_rts_wq00:20:130
7034992790,278cyclictest31031-21kworker/u16:2+efi_rts_wq22:45:133
7033992780,277cyclictest31031-21kworker/u16:2+efi_rts_wq20:29:202
7032992770,275cyclictest27231-21kworker/u16:0+efi_rts_wq23:00:121
7032992760,275cyclictest24924-21kworker/u16:3+efi_rts_wq22:04:401
7031992760,275cyclictest31031-21kworker/u16:2+efi_rts_wq20:10:130
7034992740,273cyclictest31031-21kworker/u16:2+efi_rts_wq22:25:153
7034992740,273cyclictest16990-21kworker/u16:3+efi_rts_wq00:15:123
7033992730,272cyclictest31031-21kworker/u16:2+efi_rts_wq21:24:312
7031992720,271cyclictest24924-21kworker/u16:3+efi_rts_wq21:30:140
7033992710,270cyclictest31031-21kworker/u16:2+efi_rts_wq22:45:132
7033992710,270cyclictest31031-21kworker/u16:2+efi_rts_wq22:05:122
7033992710,270cyclictest31031-21kworker/u16:2+efi_rts_wq22:05:112
7034992700,269cyclictest31031-21kworker/u16:2+efi_rts_wq21:20:133
7034992690,268cyclictest24924-21kworker/u16:3+efi_rts_wq21:30:143
7033992690,268cyclictest11938-21kworker/u16:1+efi_rts_wq00:05:042
7034992660,265cyclictest24924-21kworker/u16:3+efi_rts_wq20:15:103
7031992660,265cyclictest24924-21kworker/u16:3+efi_rts_wq20:09:150
7033992640,263cyclictest24924-21kworker/u16:3+efi_rts_wq19:35:132
7032992630,262cyclictest24924-21kworker/u16:3+efi_rts_wq20:50:141
7033992620,261cyclictest6693-21kworker/u16:0+efi_rts_wq19:24:072
7032992620,261cyclictest31031-21kworker/u16:2+efi_rts_wq22:40:121
7031992620,261cyclictest24924-21kworker/u16:3+efi_rts_wq19:55:110
7034992610,260cyclictest24924-21kworker/u16:3+efi_rts_wq20:04:153
7032992610,260cyclictest31031-21kworker/u16:2+efi_rts_wq21:19:291
7033992590,258cyclictest31031-21kworker/u16:2+efi_rts_wq21:25:132
7032992590,258cyclictest24924-21kworker/u16:3+efi_rts_wq19:20:121
7031992580,257cyclictest16990-21kworker/u16:3+efi_rts_wq00:30:130
7031992570,256cyclictest16990-21kworker/u16:3+efi_rts_wq23:30:110
7031992570,255cyclictest16990-21kworker/u16:3+efi_rts_wq23:55:140
7034992560,255cyclictest11938-21kworker/u16:1+efi_rts_wq00:20:143
7032992550,254cyclictest16990-21kworker/u16:3+efi_rts_wq00:35:101
7032992540,253cyclictest11938-21kworker/u16:1+efi_rts_wq23:20:121
7032992540,251cyclictest31031-21kworker/u16:2+efi_rts_wq22:25:161
7031992540,253cyclictest11938-21kworker/u16:1+efi_rts_wq23:05:130
7032992520,250cyclictest31031-21kworker/u16:2+efi_rts_wq21:45:131
7031992520,251cyclictest11938-21kworker/u16:1+efi_rts_wq00:25:130
7034992510,249cyclictest27231-21kworker/u16:0+efi_rts_wq23:00:123
7033992490,248cyclictest31031-21kworker/u16:2+efi_rts_wq20:35:132
7033992490,248cyclictest11938-21kworker/u16:1+efi_rts_wq23:35:122
7031992490,248cyclictest16990-21kworker/u16:3+efi_rts_wq00:05:170
7032992480,247cyclictest31031-21kworker/u16:2+efi_rts_wq22:09:411
7032992480,247cyclictest31031-21kworker/u16:2+efi_rts_wq22:09:411
7033992440,243cyclictest24924-21kworker/u16:3+efi_rts_wq20:49:232
7033992430,242cyclictest16990-21kworker/u16:3+efi_rts_wq00:25:082
7031992420,241cyclictest31031-21kworker/u16:2+efi_rts_wq22:00:130
7031992420,241cyclictest31031-21kworker/u16:2+efi_rts_wq21:00:120
7033992410,240cyclictest24924-21kworker/u16:3+efi_rts_wq19:15:012
7032992390,238cyclictest24924-21kworker/u16:3+efi_rts_wq19:55:121
7032992380,237cyclictest31031-21kworker/u16:2+efi_rts_wq20:25:111
7034992370,236cyclictest31031-21kworker/u16:2+efi_rts_wq21:15:143
7033992360,235cyclictest31031-21kworker/u16:2+efi_rts_wq21:50:132
7032992360,235cyclictest31031-21kworker/u16:2+efi_rts_wq21:20:131
7032992360,235cyclictest24924-21kworker/u16:3+efi_rts_wq20:30:141
7031992350,234cyclictest31031-21kworker/u16:2+efi_rts_wq22:55:130
7031992350,234cyclictest24924-21kworker/u16:3+efi_rts_wq20:40:130
7034992330,232cyclictest24924-21kworker/u16:3+efi_rts_wq19:15:133
7032992330,232cyclictest6693-21kworker/u16:0+efi_rts_wq19:40:131
7033992300,229cyclictest31031-21kworker/u16:2+efi_rts_wq21:40:122
7032992300,229cyclictest24924-21kworker/u16:3+efi_rts_wq22:10:121
7032992300,229cyclictest24924-21kworker/u16:3+efi_rts_wq21:05:121
7031992300,229cyclictest27231-21kworker/u16:0+efi_rts_wq22:35:120
7032992290,227cyclictest24924-21kworker/u16:3+efi_rts_wq20:15:101
7031992290,228cyclictest24924-21kworker/u16:3+efi_rts_wq20:20:140
7031992290,227cyclictest16990-21kworker/u16:3+efi_rts_wq00:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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