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2026-08-16 - 17:37

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 Sun Aug 16, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154472319304,5sleep30-21swapper/307:07:533
137732318303,5sleep10-21swapper/107:05:071
154492317304,10sleep00-21swapper/007:07:540
153882315308,5sleep20-21swapper/207:07:082
15993993000,297cyclictest29673-21kworker/u16:4+efi_rts_wq11:25:132
15991993000,299cyclictest17206-21kworker/u16:3+efi_rts_wq09:12:131
15994992990,298cyclictest31970-21kworker/u16:0+efi_rts_wq12:25:113
15991992990,298cyclictest17206-21kworker/u16:3+efi_rts_wq08:52:091
15994992980,297cyclictest17206-21kworker/u16:3+efi_rts_wq09:27:163
15991992980,295cyclictest567-21kworker/u16:1+efi_rts_wq09:50:151
15994992970,296cyclictest7911-21kworker/u16:0+efi_rts_wq10:00:143
15994992970,295cyclictest567-21kworker/u16:1+efi_rts_wq09:40:143
15990992970,296cyclictest8844-21kworker/u16:2+efi_rts_wq08:32:040
15994992950,294cyclictest567-21kworker/u16:1+efi_rts_wq09:45:153
15991992950,292cyclictest17668-21kworker/u16:0+efi_rts_wq07:55:141
15994992930,292cyclictest19586-21kworker/u16:0+efi_rts_wq11:15:143
15990992930,292cyclictest567-21kworker/u16:1+efi_rts_wq10:05:150
15991992920,291cyclictest8844-21kworker/u16:2+efi_rts_wq08:10:141
15991992920,291cyclictest567-21kworker/u16:1+efi_rts_wq09:05:121
15990992880,286cyclictest11709-21kworker/u16:1+efi_rts_wq07:15:140
15990992870,286cyclictest8844-21kworker/u16:2+efi_rts_wq07:40:130
15990992870,286cyclictest7911-21kworker/u16:0+efi_rts_wq10:30:120
15993992860,285cyclictest9367-21kworker/u16:2+efi_rts_wq11:02:322
15994992850,284cyclictest567-21kworker/u16:1+efi_rts_wq09:15:143
15991992850,284cyclictest17206-21kworker/u16:3+efi_rts_wq08:45:131
15990992850,284cyclictest8844-21kworker/u16:2+efi_rts_wq08:05:120
15990992850,284cyclictest17019-21kworker/u16:3+efi_rts_wq12:17:460
15990992830,282cyclictest17019-21kworker/u16:3+efi_rts_wq12:07:430
15990992830,281cyclictest31970-21kworker/u16:0+efi_rts_wq11:47:390
15990992820,280cyclictest9367-21kworker/u16:2+efi_rts_wq10:50:140
15990992790,278cyclictest17668-21kworker/u16:0+efi_rts_wq07:51:570
15994992780,277cyclictest21479-21kworker/u16:0+efi_rts_wq08:40:133
15994992770,276cyclictest17668-21kworker/u16:0+efi_rts_wq07:45:143
15994992750,274cyclictest17206-21kworker/u16:3+efi_rts_wq09:00:143
15991992750,274cyclictest17019-21kworker/u16:3+efi_rts_wq11:37:371
15994992740,273cyclictest17019-21kworker/u16:3+efi_rts_wq11:35:133
15993992740,273cyclictest17668-21kworker/u16:0+efi_rts_wq07:55:142
15990992730,272cyclictest567-21kworker/u16:1+efi_rts_wq10:25:120
15994992720,271cyclictest11709-21kworker/u16:1+efi_rts_wq07:10:133
15994992710,269cyclictest9367-21kworker/u16:2+efi_rts_wq10:45:163
15993992710,270cyclictest8844-21kworker/u16:2+efi_rts_wq08:30:142
15991992710,270cyclictest17668-21kworker/u16:0+efi_rts_wq07:20:131
15994992700,269cyclictest8844-21kworker/u16:2+efi_rts_wq08:15:153
15991992690,268cyclictest17019-21kworker/u16:3+efi_rts_wq11:45:141
15991992690,267cyclictest7911-21kworker/u16:0+efi_rts_wq10:35:151
15993992680,267cyclictest9367-21kworker/u16:2+efi_rts_wq11:10:122
15993992680,267cyclictest31970-21kworker/u16:0+efi_rts_wq12:35:112
15993992650,264cyclictest567-21kworker/u16:1+efi_rts_wq09:57:192
15993992650,263cyclictest8215-21kworker/u16:1+efi_rts_wq11:55:132
15990992640,263cyclictest29673-21kworker/u16:4+efi_rts_wq11:25:130
15990992610,260cyclictest567-21kworker/u16:1+efi_rts_wq09:37:160
15990992610,260cyclictest17206-21kworker/u16:3+efi_rts_wq09:32:170
15994992600,259cyclictest9367-21kworker/u16:2+efi_rts_wq11:00:143
15991992600,259cyclictest9367-21kworker/u16:2+efi_rts_wq11:07:321
15993992590,258cyclictest19586-21kworker/u16:0+efi_rts_wq11:15:142
15993992580,256cyclictest17206-21kworker/u16:3+efi_rts_wq09:10:132
15991992580,257cyclictest31970-21kworker/u16:0+efi_rts_wq11:40:111
15990992570,256cyclictest567-21kworker/u16:1+efi_rts_wq08:20:160
15994992560,255cyclictest31970-21kworker/u16:0+efi_rts_wq12:15:143
15994992560,255cyclictest31970-21kworker/u16:0+efi_rts_wq12:10:133
15991992560,255cyclictest8215-21kworker/u16:1+efi_rts_wq11:55:131
15990992560,255cyclictest567-21kworker/u16:1+efi_rts_wq09:20:130
15994992550,254cyclictest8844-21kworker/u16:2+efi_rts_wq08:00:123
15990992540,253cyclictest17019-21kworker/u16:3+efi_rts_wq12:22:470
15994992510,250cyclictest567-21kworker/u16:1+efi_rts_wq10:20:143
15993992510,250cyclictest567-21kworker/u16:1+efi_rts_wq08:35:132
15993992490,248cyclictest8844-21kworker/u16:2+efi_rts_wq08:17:012
15990992490,248cyclictest17206-21kworker/u16:3+efi_rts_wq08:55:130
15991992480,247cyclictest17019-21kworker/u16:3+efi_rts_wq12:20:131
15991992470,246cyclictest31970-21kworker/u16:0+efi_rts_wq11:52:421
15990992460,245cyclictest31970-21kworker/u16:0+efi_rts_wq12:25:120
15994992430,242cyclictest11709-21kworker/u16:1+efi_rts_wq07:16:513
15990992430,242cyclictest9367-21kworker/u16:2+efi_rts_wq10:45:150
15990992430,242cyclictest29673-21kworker/u16:4+efi_rts_wq11:30:130
15993992410,240cyclictest17668-21kworker/u16:0+efi_rts_wq07:31:522
15990992410,240cyclictest9367-21kworker/u16:2+efi_rts_wq11:10:120
15994992390,238cyclictest17019-21kworker/u16:3+efi_rts_wq11:12:333
15993992390,238cyclictest31970-21kworker/u16:0+efi_rts_wq12:30:122
15994992380,237cyclictest8844-21kworker/u16:2+efi_rts_wq08:25:133
15993992380,237cyclictest17668-21kworker/u16:0+efi_rts_wq07:15:012
15993992380,237cyclictest11709-21kworker/u16:1+efi_rts_wq07:25:152
15991992350,234cyclictest31970-21kworker/u16:0+efi_rts_wq12:00:141
15991992350,234cyclictest11709-21kworker/u16:1+efi_rts_wq07:26:521
15994992340,233cyclictest567-21kworker/u16:1+efi_rts_wq10:57:313
15993992340,231cyclictest567-21kworker/u16:1+efi_rts_wq09:45:142
15990992320,231cyclictest567-21kworker/u16:1+efi_rts_wq09:55:140
15990992290,228cyclictest17206-21kworker/u16:3+efi_rts_wq08:47:070
15991992270,225cyclictest567-21kworker/u16:1+efi_rts_wq10:55:121
15993992260,225cyclictest9367-21kworker/u16:2+efi_rts_wq10:50:142
15993992260,225cyclictest7911-21kworker/u16:0+efi_rts_wq10:15:162
15993992260,225cyclictest567-21kworker/u16:1+efi_rts_wq09:15:132
15991992260,225cyclictest31970-21kworker/u16:0+efi_rts_wq12:35:111
15991992250,224cyclictest8844-21kworker/u16:2+efi_rts_wq08:27:021
15994992220,221cyclictest567-21kworker/u16:1+efi_rts_wq08:50:143
15993992210,220cyclictest17019-21kworker/u16:3+efi_rts_wq11:45:142
15993992180,217cyclictest7911-21kworker/u16:0+efi_rts_wq10:07:212
15994992170,216cyclictest11709-21kworker/u16:1+efi_rts_wq07:30:123
15990992170,216cyclictest21479-21kworker/u16:0+efi_rts_wq08:40:140
15994992160,215cyclictest29673-21kworker/u16:4+efi_rts_wq11:27:373
15994992160,214cyclictest31970-21kworker/u16:0+efi_rts_wq12:00:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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