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2026-06-23 - 08:14

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 Jun 23, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148482333303,27sleep10-21swapper/119:07:291
148172321315,4sleep00-21swapper/019:07:030
147792321306,5sleep20-21swapper/219:06:372
149842319305,4sleep30-21swapper/319:09:143
15312993020,299cyclictest8123-21kworker/u16:3+efi_rts_wq21:20:122
15310993000,297cyclictest24437-21kworker/u16:1+efi_rts_wq23:15:140
15313992990,298cyclictest6509-21kworker/u16:1+efi_rts_wq22:45:133
15313992990,298cyclictest6509-21kworker/u16:1+efi_rts_wq22:45:133
15311992990,298cyclictest847-21kworker/u16:2+efi_rts_wq21:10:141
15313992970,296cyclictest8123-21kworker/u16:3+efi_rts_wq21:04:533
15313992960,295cyclictest15576-21kworker/u16:1+efi_rts_wq21:45:093
15312992930,292cyclictest10338-21kworker/u16:3+efi_rts_wq00:00:122
15311992930,292cyclictest16683-21kworker/u16:1+efi_rts_wq20:55:131
15311992920,291cyclictest10338-21kworker/u16:3+efi_rts_wq00:00:121
15310992910,290cyclictest1082-21kworker/u16:2+efi_rts_wq00:20:310
15310992900,289cyclictest23813-21kworker/u16:2+efi_rts_wq19:30:120
15313992890,288cyclictest10549-21kworker/u16:3+efi_rts_wq19:15:003
15312992880,287cyclictest1666-21kworker/u16:0+efi_rts_wq22:35:132
15311992880,287cyclictest8123-21kworker/u16:3+efi_rts_wq20:30:131
15310992880,287cyclictest1666-21kworker/u16:0+efi_rts_wq22:30:110
15313992860,285cyclictest23813-21kworker/u16:2+efi_rts_wq19:50:133
15311992860,285cyclictest21883-21kworker/u16:1+efi_rts_wq22:15:121
15311992850,284cyclictest31031-21kworker/u16:1+efi_rts_wq21:20:121
15313992840,282cyclictest22937-21kworker/u16:1+efi_rts_wq00:25:133
15313992830,282cyclictest8123-21kworker/u16:3+efi_rts_wq20:20:133
15312992830,282cyclictest19561-21kworker/u16:2+efi_rts_wq19:20:112
15311992830,282cyclictest23813-21kworker/u16:2+efi_rts_wq19:35:131
15313992820,281cyclictest13169-21kworker/u16:2+efi_rts_wq22:25:093
15310992820,281cyclictest24437-21kworker/u16:1+efi_rts_wq23:30:220
15310992820,281cyclictest1666-21kworker/u16:0+efi_rts_wq22:40:130
15310992820,281cyclictest1666-21kworker/u16:0+efi_rts_wq22:40:120
15310992820,281cyclictest10549-21kworker/u16:3+efi_rts_wq19:25:110
15313992800,279cyclictest31031-21kworker/u16:1+efi_rts_wq21:05:153
15310992800,279cyclictest8060-21kworker/u16:1+efi_rts_wq23:50:120
15311992790,278cyclictest28874-21kworker/u16:2+efi_rts_wq21:00:131
15313992780,277cyclictest23813-21kworker/u16:2+efi_rts_wq20:05:143
15312992780,277cyclictest16683-21kworker/u16:1+efi_rts_wq20:40:122
15311992780,277cyclictest30171-21kworker/u16:3+efi_rts_wq20:00:131
15313992770,276cyclictest8123-21kworker/u16:3+efi_rts_wq20:39:503
15313992760,275cyclictest28056-21kworker/u16:0+efi_rts_wq19:45:123
15312992760,275cyclictest8123-21kworker/u16:3+efi_rts_wq20:59:522
15312992760,275cyclictest1082-21kworker/u16:2+efi_rts_wq00:05:122
15311992760,275cyclictest13169-21kworker/u16:2+efi_rts_wq22:05:141
15313992750,274cyclictest5703-21kworker/u16:0+efi_rts_wq23:45:123
15311992720,271cyclictest21883-21kworker/u16:2+efi_rts_wq23:10:201
15310992720,271cyclictest21883-21kworker/u16:1+efi_rts_wq22:00:140
15313992710,270cyclictest5710-21kworker/u16:2+efi_rts_wq21:25:123
15313992710,270cyclictest21883-21kworker/u16:2+efi_rts_wq23:10:133
15312992710,270cyclictest24437-21kworker/u16:1+efi_rts_wq23:30:142
15310992710,269cyclictest1082-21kworker/u16:2+efi_rts_wq23:35:230
15310992700,269cyclictest10979-21kworker/u16:3+efi_rts_wq21:35:130
15311992680,267cyclictest10278-21kworker/u16:0+efi_rts_wq20:25:131
15312992670,266cyclictest16683-21kworker/u16:1+efi_rts_wq20:49:502
15310992670,266cyclictest21883-21kworker/u16:1+efi_rts_wq22:10:140
15310992640,263cyclictest28579-21kworker/u16:3+efi_rts_wq23:25:120
15310992640,262cyclictest10338-21kworker/u16:3+efi_rts_wq23:55:120
15310992620,260cyclictest1666-21kworker/u16:0+efi_rts_wq23:20:120
15313992580,257cyclictest12665-21kworker/u16:0+efi_rts_wq00:10:123
15311992580,257cyclictest13169-21kworker/u16:2+efi_rts_wq22:30:131
15312992560,253cyclictest12665-21kworker/u16:0+efi_rts_wq00:10:122
15311992550,254cyclictest6509-21kworker/u16:1+efi_rts_wq22:50:121
15311992530,252cyclictest10979-21kworker/u16:3+efi_rts_wq21:35:131
15311992520,250cyclictest19351-21kworker/u16:3+efi_rts_wq23:05:131
15311992510,250cyclictest22937-21kworker/u16:1+efi_rts_wq00:25:321
15310992510,250cyclictest22937-21kworker/u16:1+efi_rts_wq00:25:130
15311992500,249cyclictest31031-21kworker/u16:1+efi_rts_wq21:30:121
15311992500,249cyclictest16683-21kworker/u16:1+efi_rts_wq20:45:131
15313992470,246cyclictest31031-21kworker/u16:1+efi_rts_wq21:14:553
15313992460,245cyclictest16683-21kworker/u16:1+efi_rts_wq20:50:123
15312992460,245cyclictest8123-21kworker/u16:3+efi_rts_wq21:15:122
15312992440,243cyclictest10338-21kworker/u16:3+efi_rts_wq23:55:122
15311992430,242cyclictest847-21kworker/u16:2+efi_rts_wq21:09:541
15311992430,240cyclictest1082-21kworker/u16:2+efi_rts_wq00:15:131
15313992420,241cyclictest21883-21kworker/u16:1+efi_rts_wq22:15:133
15310992420,241cyclictest8123-21kworker/u16:3+efi_rts_wq20:30:120
15310992400,239cyclictest21717-21kworker/u16:0+efi_rts_wq19:24:350
15310992370,236cyclictest28056-21kworker/u16:0+efi_rts_wq19:40:120
15311992360,235cyclictest1666-21kworker/u16:0+efi_rts_wq22:35:111
15311992350,234cyclictest5710-21kworker/u16:2+efi_rts_wq21:25:111
15311992350,234cyclictest28579-21kworker/u16:3+efi_rts_wq23:25:121
15313992330,232cyclictest13169-21kworker/u16:2+efi_rts_wq21:55:113
15312992330,232cyclictest24437-21kworker/u16:1+efi_rts_wq23:35:132
15310992300,229cyclictest6509-21kworker/u16:1+efi_rts_wq22:45:130
15310992300,229cyclictest6509-21kworker/u16:1+efi_rts_wq22:45:130
15311992290,228cyclictest26906-21kworker/u16:1+efi_rts_wq19:15:001
15312992260,225cyclictest15576-21kworker/u16:1+efi_rts_wq21:50:132
15313992250,224cyclictest25132-21kworker/u16:0+efi_rts_wq00:30:133
15313992240,223cyclictest8123-21kworker/u16:3+efi_rts_wq21:20:123
15313992240,223cyclictest10549-21kworker/u16:3+efi_rts_wq19:34:373
15312992240,223cyclictest28056-21kworker/u16:0+efi_rts_wq19:45:132
15313992230,222cyclictest6509-21kworker/u16:1+efi_rts_wq22:50:123
15313992230,222cyclictest25132-21kworker/u16:0+efi_rts_wq00:35:133
15311992230,222cyclictest8856-21kworker/u16:0+efi_rts_wq21:40:111
15310992230,222cyclictest25132-21kworker/u16:0+efi_rts_wq00:30:330
15313992210,220cyclictest25941-21kworker/u16:1+efi_rts_wq19:39:383
15310992210,220cyclictest16683-21kworker/u16:1+efi_rts_wq20:50:120
15310992210,220cyclictest1666-21kworker/u16:0+efi_rts_wq22:55:120
15312992200,219cyclictest1666-21kworker/u16:0+efi_rts_wq22:40:122
15312992200,219cyclictest1666-21kworker/u16:0+efi_rts_wq22:40:122
15311992190,218cyclictest15576-21kworker/u16:1+efi_rts_wq21:45:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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