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2026-05-26 - 20:05

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 May 26, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239072326319,5sleep00-21swapper/007:08:370
238152317303,5sleep30-21swapper/307:07:283
236932317302,5sleep20-21swapper/207:05:552
236612314307,4sleep10-21swapper/107:05:301
24279993020,301cyclictest14117-21kworker/u16:1+efi_rts_wq07:40:122
24279993010,298cyclictest3339-21kworker/u16:0+efi_rts_wq12:30:132
24280993000,299cyclictest14117-21kworker/u16:1+efi_rts_wq11:40:143
24277992980,297cyclictest14117-21kworker/u16:1+efi_rts_wq11:50:130
24277992970,296cyclictest14117-21kworker/u16:1+efi_rts_wq07:40:110
24279992960,295cyclictest14117-21kworker/u16:1+efi_rts_wq11:25:112
24277992960,295cyclictest3339-21kworker/u16:0+efi_rts_wq09:42:210
24277992960,295cyclictest14117-21kworker/u16:1+efi_rts_wq10:20:130
24277992950,294cyclictest3339-21kworker/u16:0+efi_rts_wq08:00:120
24277992950,294cyclictest3339-21kworker/u16:0+efi_rts_wq08:00:120
24278992930,292cyclictest3339-21kworker/u16:0+efi_rts_wq08:02:011
24278992930,292cyclictest3339-21kworker/u16:0+efi_rts_wq08:02:001
24278992930,292cyclictest14117-21kworker/u16:1+efi_rts_wq11:25:111
24278992910,290cyclictest14117-21kworker/u16:1+efi_rts_wq10:20:121
24277992910,290cyclictest3339-21kworker/u16:0+efi_rts_wq10:10:120
24278992900,289cyclictest3339-21kworker/u16:0+efi_rts_wq07:15:121
24280992890,288cyclictest3339-21kworker/u16:0+efi_rts_wq09:35:123
24279992890,288cyclictest3339-21kworker/u16:0+efi_rts_wq08:25:122
24277992880,287cyclictest14117-21kworker/u16:1+efi_rts_wq11:15:140
24277992880,287cyclictest14117-21kworker/u16:1+efi_rts_wq09:57:240
24278992870,286cyclictest14117-21kworker/u16:1+efi_rts_wq07:20:131
24277992870,286cyclictest3339-21kworker/u16:0+efi_rts_wq12:15:120
24277992870,286cyclictest14117-21kworker/u16:1+efi_rts_wq11:37:460
24277992860,285cyclictest14117-21kworker/u16:1+efi_rts_wq09:45:110
24277992860,285cyclictest14117-21kworker/u16:1+efi_rts_wq09:32:190
24279992850,284cyclictest14117-21kworker/u16:1+efi_rts_wq09:15:122
24278992850,284cyclictest3339-21kworker/u16:0+efi_rts_wq12:25:101
24277992850,284cyclictest14117-21kworker/u16:1+efi_rts_wq08:20:100
24280992840,283cyclictest3339-21kworker/u16:0+efi_rts_wq07:50:133
24277992840,283cyclictest14117-21kworker/u16:1+efi_rts_wq09:05:110
24279992830,282cyclictest3339-21kworker/u16:0+efi_rts_wq11:20:132
24279992830,282cyclictest14117-21kworker/u16:1+efi_rts_wq08:55:102
24279992830,282cyclictest14117-21kworker/u16:1+efi_rts_wq08:35:132
24278992830,282cyclictest14117-21kworker/u16:1+efi_rts_wq09:55:111
24280992820,281cyclictest3339-21kworker/u16:0+efi_rts_wq12:35:123
24277992820,281cyclictest14117-21kworker/u16:1+efi_rts_wq10:52:360
24277992820,281cyclictest14117-21kworker/u16:1+efi_rts_wq07:30:130
24280992810,280cyclictest14117-21kworker/u16:1+efi_rts_wq08:15:123
24280992800,278cyclictest3339-21kworker/u16:0+efi_rts_wq11:45:123
24277992800,279cyclictest14117-21kworker/u16:1+efi_rts_wq09:17:160
24280992790,278cyclictest14117-21kworker/u16:1+efi_rts_wq07:45:133
24279992790,278cyclictest3339-21kworker/u16:0+efi_rts_wq09:35:122
24279992790,278cyclictest3339-21kworker/u16:0+efi_rts_wq07:10:132
24280992770,276cyclictest14117-21kworker/u16:1+efi_rts_wq11:17:413
24277992770,272cyclictest3339-21kworker/u16:0+efi_rts_wq07:15:130
24279992760,275cyclictest3339-21kworker/u16:0+efi_rts_wq09:20:132
24279992760,275cyclictest14117-21kworker/u16:1+efi_rts_wq09:55:112
24280992750,274cyclictest19557-21kworker/u16:2+efi_rts_wq12:05:133
24280992740,273cyclictest3339-21kworker/u16:0+efi_rts_wq08:40:133
24280992730,272cyclictest14117-21kworker/u16:1+efi_rts_wq11:22:433
24277992730,272cyclictest14117-21kworker/u16:1+efi_rts_wq08:07:010
24277992730,272cyclictest14117-21kworker/u16:1+efi_rts_wq08:07:010
24279992720,271cyclictest3339-21kworker/u16:0+efi_rts_wq08:45:122
24278992720,271cyclictest3339-21kworker/u16:0+efi_rts_wq08:10:151
24279992700,269cyclictest14117-21kworker/u16:1+efi_rts_wq07:55:112
24278992700,269cyclictest3339-21kworker/u16:0+efi_rts_wq07:31:561
24280992690,268cyclictest3339-21kworker/u16:0+efi_rts_wq09:00:143
24279992690,268cyclictest3339-21kworker/u16:0+efi_rts_wq10:00:132
24279992690,268cyclictest14117-21kworker/u16:1+efi_rts_wq09:45:112
24277992690,267cyclictest3339-21kworker/u16:0+efi_rts_wq09:10:120
24280992680,267cyclictest14117-21kworker/u16:1+efi_rts_wq10:40:143
24279992660,265cyclictest14117-21kworker/u16:1+efi_rts_wq10:07:262
24280992650,263cyclictest3339-21kworker/u16:0+efi_rts_wq10:15:113
24279992650,263cyclictest3339-21kworker/u16:0+efi_rts_wq11:10:132
24277992630,262cyclictest14117-21kworker/u16:1+efi_rts_wq10:35:140
24277992620,261cyclictest14117-21kworker/u16:1+efi_rts_wq11:42:460
24280992610,260cyclictest3339-21kworker/u16:0+efi_rts_wq08:12:033
24277992610,260cyclictest14117-21kworker/u16:1+efi_rts_wq08:55:110
24279992600,259cyclictest14117-21kworker/u16:1+efi_rts_wq10:45:132
24277992600,259cyclictest3339-21kworker/u16:0+efi_rts_wq08:42:080
24277992590,257cyclictest14117-21kworker/u16:1+efi_rts_wq10:45:130
24280992580,257cyclictest14117-21kworker/u16:1+efi_rts_wq07:56:593
24278992570,256cyclictest3339-21kworker/u16:0+efi_rts_wq12:17:531
24278992570,256cyclictest3339-21kworker/u16:0+efi_rts_wq12:10:131
24280992550,254cyclictest14117-21kworker/u16:1+efi_rts_wq09:25:123
24280992550,254cyclictest14117-21kworker/u16:1+efi_rts_wq08:05:163
24280992550,254cyclictest14117-21kworker/u16:1+efi_rts_wq08:05:153
24277992550,254cyclictest14117-21kworker/u16:1+efi_rts_wq07:21:530
24280992540,253cyclictest14117-21kworker/u16:1+efi_rts_wq08:50:133
24278992530,252cyclictest3339-21kworker/u16:0+efi_rts_wq11:07:391
24279992520,251cyclictest14117-21kworker/u16:1+efi_rts_wq07:35:122
24277992510,250cyclictest3339-21kworker/u16:0+efi_rts_wq10:27:310
24280992500,249cyclictest3339-21kworker/u16:0+efi_rts_wq10:57:373
24280992500,249cyclictest14117-21kworker/u16:1+efi_rts_wq11:30:133
24278992460,245cyclictest14117-21kworker/u16:1+efi_rts_wq10:55:111
24278992450,244cyclictest3339-21kworker/u16:0+efi_rts_wq10:25:111
24278992440,243cyclictest14117-21kworker/u16:1+efi_rts_wq09:30:141
24277992440,243cyclictest19557-21kworker/u16:2+efi_rts_wq12:20:120
24279992420,241cyclictest14117-21kworker/u16:1+efi_rts_wq11:35:122
24280992410,240cyclictest14117-21kworker/u16:1+efi_rts_wq09:05:113
24279992410,240cyclictest3339-21kworker/u16:0+efi_rts_wq12:25:092
24279992410,240cyclictest14117-21kworker/u16:1+efi_rts_wq10:30:132
24279992390,238cyclictest14117-21kworker/u16:1+efi_rts_wq08:20:112
24279992360,235cyclictest14117-21kworker/u16:1+efi_rts_wq10:35:132
24278992330,232cyclictest3339-21kworker/u16:0+efi_rts_wq11:00:131
24278992330,230cyclictest19557-21kworker/u16:2+efi_rts_wq12:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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