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2026-03-09 - 22:54

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 Mon Mar 09, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
144002330304,10sleep10-21swapper/107:09:361
142952321315,4sleep30-21swapper/307:08:143
142802320306,5sleep00-21swapper/007:08:030
141672318312,4sleep20-21swapper/207:06:372
14695993150,314cyclictest31472-21kworker/u16:3+efi_rts_wq08:20:111
14696993140,313cyclictest8365-21kworker/u16:0+efi_rts_wq12:30:122
14695993140,313cyclictest24700-21kworker/u16:1+efi_rts_wq10:55:131
14697993100,309cyclictest31472-21kworker/u16:3+efi_rts_wq07:37:343
14696993100,309cyclictest8365-21kworker/u16:0+efi_rts_wq11:38:192
14697993090,308cyclictest29708-21kworker/u16:1+efi_rts_wq08:52:473
14695993090,308cyclictest31472-21kworker/u16:3+efi_rts_wq11:05:121
14694993090,308cyclictest31472-21kworker/u16:3+efi_rts_wq07:25:120
14694993090,307cyclictest29708-21kworker/u16:1+efi_rts_wq10:45:130
14694993050,304cyclictest31472-21kworker/u16:3+efi_rts_wq10:58:130
14696993040,303cyclictest31472-21kworker/u16:3+efi_rts_wq09:55:122
14694993040,303cyclictest11007-21kworker/u16:1+efi_rts_wq11:45:120
14694993040,303cyclictest11007-21kworker/u16:1+efi_rts_wq11:43:200
14695993000,299cyclictest31472-21kworker/u16:3+efi_rts_wq08:30:101
14694993000,299cyclictest31472-21kworker/u16:3+efi_rts_wq08:15:140
14696992990,298cyclictest31472-21kworker/u16:3+efi_rts_wq07:45:132
14694992990,298cyclictest11007-21kworker/u16:1+efi_rts_wq12:35:130
14695992980,297cyclictest29708-21kworker/u16:1+efi_rts_wq08:47:461
14697992970,296cyclictest8365-21kworker/u16:0+efi_rts_wq11:28:173
14696992970,296cyclictest11007-21kworker/u16:1+efi_rts_wq11:55:122
14694992970,296cyclictest31472-21kworker/u16:3+efi_rts_wq07:15:130
14697992960,295cyclictest29708-21kworker/u16:1+efi_rts_wq10:20:133
14694992920,291cyclictest8365-21kworker/u16:0+efi_rts_wq12:20:140
14697992910,290cyclictest31472-21kworker/u16:3+efi_rts_wq07:15:013
14697992910,290cyclictest13774-21kworker/u16:2+efi_rts_wq07:12:303
14696992910,290cyclictest29708-21kworker/u16:1+efi_rts_wq09:17:522
14696992910,290cyclictest11007-21kworker/u16:1+efi_rts_wq12:03:242
14694992890,288cyclictest8365-21kworker/u16:0+efi_rts_wq12:05:110
14695992880,287cyclictest11007-21kworker/u16:1+efi_rts_wq12:38:291
14695992870,286cyclictest13774-21kworker/u16:2+efi_rts_wq07:20:121
14697992860,285cyclictest31472-21kworker/u16:3+efi_rts_wq09:20:123
14696992860,285cyclictest11007-21kworker/u16:1+efi_rts_wq11:30:122
14695992860,285cyclictest31472-21kworker/u16:3+efi_rts_wq10:35:121
14695992860,285cyclictest31472-21kworker/u16:3+efi_rts_wq07:10:131
14697992850,284cyclictest31472-21kworker/u16:3+efi_rts_wq09:50:133
14695992830,282cyclictest29708-21kworker/u16:1+efi_rts_wq10:40:121
14694992830,282cyclictest31472-21kworker/u16:3+efi_rts_wq07:50:110
14694992830,282cyclictest29708-21kworker/u16:1+efi_rts_wq09:45:110
14694992830,282cyclictest29708-21kworker/u16:1+efi_rts_wq09:05:120
14697992820,281cyclictest31472-21kworker/u16:3+efi_rts_wq07:27:323
14697992820,281cyclictest29708-21kworker/u16:1+efi_rts_wq09:30:133
14694992820,281cyclictest31472-21kworker/u16:3+efi_rts_wq08:05:110
14695992810,280cyclictest31472-21kworker/u16:3+efi_rts_wq10:30:121
14695992800,279cyclictest8365-21kworker/u16:0+efi_rts_wq12:30:121
14695992800,279cyclictest31472-21kworker/u16:3+efi_rts_wq08:00:141
14694992800,276cyclictest11007-21kworker/u16:1+efi_rts_wq12:25:110
14696992780,277cyclictest8365-21kworker/u16:0+efi_rts_wq11:50:122
14696992780,277cyclictest29708-21kworker/u16:1+efi_rts_wq08:40:122
14695992780,277cyclictest31472-21kworker/u16:3+efi_rts_wq10:10:131
14695992780,277cyclictest31472-21kworker/u16:3+efi_rts_wq07:40:131
14697992770,276cyclictest31472-21kworker/u16:3+efi_rts_wq08:35:133
14697992770,276cyclictest31472-21kworker/u16:3+efi_rts_wq07:40:143
14694992770,276cyclictest31472-21kworker/u16:3+efi_rts_wq08:10:140
14695992760,275cyclictest29708-21kworker/u16:1+efi_rts_wq10:28:071
14696992750,274cyclictest31472-21kworker/u16:3+efi_rts_wq11:20:122
14697992720,271cyclictest29708-21kworker/u16:1+efi_rts_wq08:27:433
14695992720,271cyclictest29708-21kworker/u16:1+efi_rts_wq08:55:121
14694992720,271cyclictest31472-21kworker/u16:3+efi_rts_wq08:25:130
14697992670,266cyclictest29708-21kworker/u16:1+efi_rts_wq10:25:123
14696992670,266cyclictest29708-21kworker/u16:1+efi_rts_wq08:37:452
14694992670,266cyclictest31472-21kworker/u16:3+efi_rts_wq11:00:120
14694992650,264cyclictest13774-21kworker/u16:2+efi_rts_wq07:22:310
14695992640,263cyclictest8365-21kworker/u16:0+efi_rts_wq12:00:141
14694992630,262cyclictest24700-21kworker/u16:1+efi_rts_wq11:08:140
14696992610,260cyclictest31472-21kworker/u16:3+efi_rts_wq09:10:142
14694992610,259cyclictest29708-21kworker/u16:1+efi_rts_wq10:38:090
14695992590,258cyclictest31472-21kworker/u16:3+efi_rts_wq07:35:131
14694992590,258cyclictest31472-21kworker/u16:3+efi_rts_wq08:00:140
14694992590,258cyclictest29708-21kworker/u16:1+efi_rts_wq08:57:480
14696992580,256cyclictest5739-21kworker/u16:2+efi_rts_wq11:25:142
14697992570,256cyclictest8365-21kworker/u16:0+efi_rts_wq12:05:123
14697992570,256cyclictest8365-21kworker/u16:0+efi_rts_wq12:00:133
14697992560,255cyclictest31472-21kworker/u16:3+efi_rts_wq10:00:133
14697992560,255cyclictest31472-21kworker/u16:3+efi_rts_wq07:30:133
14697992550,254cyclictest29708-21kworker/u16:1+efi_rts_wq10:40:133
14697992520,251cyclictest8365-21kworker/u16:0+efi_rts_wq12:13:243
14694992520,251cyclictest29708-21kworker/u16:1+efi_rts_wq09:15:120
14697992490,248cyclictest29708-21kworker/u16:1+efi_rts_wq10:45:133
14695992480,247cyclictest31472-21kworker/u16:3+efi_rts_wq10:15:131
14694992470,245cyclictest24700-21kworker/u16:1+efi_rts_wq10:53:110
14694992460,245cyclictest31472-21kworker/u16:3+efi_rts_wq11:18:140
14694992450,244cyclictest29708-21kworker/u16:1+efi_rts_wq09:25:120
14696992440,243cyclictest8365-21kworker/u16:0+efi_rts_wq11:48:212
14696992440,243cyclictest11007-21kworker/u16:1+efi_rts_wq11:40:142
14695992440,243cyclictest29708-21kworker/u16:1+efi_rts_wq10:23:051
14694992430,242cyclictest31472-21kworker/u16:3+efi_rts_wq11:20:120
14696992370,236cyclictest31472-21kworker/u16:3+efi_rts_wq07:50:112
14696992360,235cyclictest31472-21kworker/u16:3+efi_rts_wq09:37:562
14697992330,232cyclictest11007-21kworker/u16:1+efi_rts_wq11:55:133
14695992330,232cyclictest31472-21kworker/u16:3+efi_rts_wq07:55:121
14695992300,229cyclictest29708-21kworker/u16:1+efi_rts_wq09:32:561
14695992280,227cyclictest31472-21kworker/u16:3+efi_rts_wq09:20:131
14696992270,226cyclictest13774-21kworker/u16:2+efi_rts_wq07:17:302
14695992270,226cyclictest21991-21kworker/u16:0+efi_rts_wq10:50:131
14695992260,225cyclictest29708-21kworker/u16:1+efi_rts_wq09:15:121
14696992230,222cyclictest31472-21kworker/u16:3+efi_rts_wq11:00:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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