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2026-06-11 - 11:33

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 Thu Jun 11, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181242318311,5sleep20-21swapper/219:09:482
179862317304,4sleep10-21swapper/119:08:021
180482316309,4sleep30-21swapper/319:08:493
178922316302,5sleep00-21swapper/019:06:490
18404993000,299cyclictest14335-21kworker/u16:0+efi_rts_wq19:20:111
18403992990,298cyclictest12588-21kworker/u16:3+efi_rts_wq22:55:120
18404992980,297cyclictest8517-21kworker/u16:2+efi_rts_wq21:30:121
18406992970,296cyclictest31116-21kworker/u16:4+efi_rts_wq20:34:033
18405992960,295cyclictest22984-21kworker/u16:2+efi_rts_wq23:25:132
18405992960,295cyclictest12820-21kworker/u16:0+efi_rts_wq21:44:162
18403992960,295cyclictest19054-21kworker/u16:1+efi_rts_wq22:49:280
18405992940,293cyclictest29410-21kworker/u16:0+efi_rts_wq22:39:272
18403992930,292cyclictest11060-21kworker/u16:1+efi_rts_wq20:18:590
18406992920,291cyclictest29078-21kworker/u16:0+efi_rts_wq00:35:123
18406992900,289cyclictest11060-21kworker/u16:1+efi_rts_wq20:10:133
18406992900,289cyclictest11060-21kworker/u16:1+efi_rts_wq19:10:123
18403992900,289cyclictest14335-21kworker/u16:0+efi_rts_wq19:28:510
18406992890,288cyclictest22984-21kworker/u16:2+efi_rts_wq23:15:123
18404992890,288cyclictest2178-21kworker/u16:1+efi_rts_wq21:05:131
18405992880,287cyclictest31116-21kworker/u16:4+efi_rts_wq20:13:592
18404992880,287cyclictest11060-21kworker/u16:1+efi_rts_wq19:15:131
18406992870,286cyclictest2178-21kworker/u16:1+efi_rts_wq21:14:113
18404992870,286cyclictest8517-21kworker/u16:2+efi_rts_wq21:25:121
18404992870,286cyclictest16004-21kworker/u16:0+efi_rts_wq00:10:111
18403992870,286cyclictest30710-21kworker/u16:3+efi_rts_wq21:19:120
18403992870,286cyclictest29078-21kworker/u16:0+efi_rts_wq00:30:110
18404992860,285cyclictest29078-21kworker/u16:0+efi_rts_wq00:35:131
18403992860,285cyclictest2178-21kworker/u16:1+efi_rts_wq21:05:150
18403992860,285cyclictest19054-21kworker/u16:1+efi_rts_wq21:49:180
18406992840,283cyclictest2178-21kworker/u16:1+efi_rts_wq21:15:123
18406992830,282cyclictest8517-21kworker/u16:2+efi_rts_wq21:30:113
18404992830,282cyclictest26427-21kworker/u16:2+efi_rts_wq20:59:081
18404992830,282cyclictest24907-21kworker/u16:3+efi_rts_wq19:45:121
18406992820,281cyclictest12820-21kworker/u16:0+efi_rts_wq21:40:123
18405992820,281cyclictest19054-21kworker/u16:1+efi_rts_wq22:15:132
18403992820,281cyclictest11060-21kworker/u16:1+efi_rts_wq19:50:130
18403992820,281cyclictest11060-21kworker/u16:1+efi_rts_wq19:50:120
18406992810,280cyclictest11060-21kworker/u16:1+efi_rts_wq20:25:113
18406992800,279cyclictest11060-21kworker/u16:1+efi_rts_wq19:30:123
18405992800,279cyclictest19054-21kworker/u16:1+efi_rts_wq22:05:122
18403992790,278cyclictest25533-21kworker/u16:3+efi_rts_wq23:14:330
18404992780,277cyclictest31116-21kworker/u16:4+efi_rts_wq19:55:131
18405992770,276cyclictest24907-21kworker/u16:3+efi_rts_wq19:40:122
18404992760,275cyclictest20354-21kworker/u16:0+efi_rts_wq20:44:041
18403992750,273cyclictest24907-21kworker/u16:3+efi_rts_wq19:45:130
18405992720,271cyclictest19054-21kworker/u16:1+efi_rts_wq23:00:122
18404992710,270cyclictest30710-21kworker/u16:3+efi_rts_wq21:54:181
18404992710,270cyclictest22984-21kworker/u16:2+efi_rts_wq00:00:131
18405992700,269cyclictest2212-21kworker/u16:0+efi_rts_wq23:34:352
18403992700,269cyclictest18380-21kworker/u16:3+efi_rts_wq00:25:100
18406992690,268cyclictest11060-21kworker/u16:1+efi_rts_wq19:35:113
18404992690,268cyclictest6835-21kworker/u16:3+efi_rts_wq23:45:121
18406992680,267cyclictest22535-21kworker/u16:4+efi_rts_wq00:20:123
18405992680,267cyclictest30710-21kworker/u16:3+efi_rts_wq22:30:122
18404992680,267cyclictest19054-21kworker/u16:1+efi_rts_wq21:55:121
18403992660,265cyclictest19054-21kworker/u16:1+efi_rts_wq22:25:110
18406992650,264cyclictest19054-21kworker/u16:1+efi_rts_wq21:45:123
18404992640,263cyclictest19054-21kworker/u16:1+efi_rts_wq22:20:111
18403992640,261cyclictest22984-21kworker/u16:2+efi_rts_wq23:40:130
18404992620,261cyclictest2212-21kworker/u16:0+efi_rts_wq23:30:121
18404992620,261cyclictest20354-21kworker/u16:0+efi_rts_wq20:49:051
18405992610,260cyclictest11060-21kworker/u16:1+efi_rts_wq19:38:522
18405992610,259cyclictest19054-21kworker/u16:1+efi_rts_wq22:45:122
18406992600,259cyclictest22984-21kworker/u16:2+efi_rts_wq23:24:343
18406992600,259cyclictest11060-21kworker/u16:1+efi_rts_wq19:25:113
18406992570,256cyclictest29410-21kworker/u16:0+efi_rts_wq22:35:133
18405992570,256cyclictest30710-21kworker/u16:3+efi_rts_wq21:50:122
18403992550,254cyclictest28071-21kworker/u16:1+efi_rts_wq23:35:120
18403992550,254cyclictest22984-21kworker/u16:2+efi_rts_wq23:50:110
18405992540,253cyclictest22984-21kworker/u16:2+efi_rts_wq23:20:112
18405992530,252cyclictest26427-21kworker/u16:2+efi_rts_wq20:45:132
18405992530,252cyclictest19054-21kworker/u16:1+efi_rts_wq22:20:112
18404992530,252cyclictest11060-21kworker/u16:1+efi_rts_wq20:05:111
18404992510,250cyclictest24907-21kworker/u16:3+efi_rts_wq19:50:131
18404992510,250cyclictest24907-21kworker/u16:3+efi_rts_wq19:50:121
18404992510,250cyclictest19054-21kworker/u16:1+efi_rts_wq22:29:261
18403992500,249cyclictest26427-21kworker/u16:2+efi_rts_wq20:50:120
18406992490,247cyclictest19054-21kworker/u16:1+efi_rts_wq22:40:113
18405992490,248cyclictest16004-21kworker/u16:0+efi_rts_wq00:05:112
18406992480,247cyclictest28071-21kworker/u16:1+efi_rts_wq23:35:123
18403992480,247cyclictest30710-21kworker/u16:3+efi_rts_wq22:19:220
18403992480,246cyclictest11060-21kworker/u16:1+efi_rts_wq20:35:110
18405992470,244cyclictest26427-21kworker/u16:2+efi_rts_wq20:55:122
18403992470,246cyclictest31116-21kworker/u16:4+efi_rts_wq20:00:130
18404992450,244cyclictest12820-21kworker/u16:0+efi_rts_wq21:39:161
18404992440,243cyclictest12588-21kworker/u16:3+efi_rts_wq22:55:121
18403992430,242cyclictest6835-21kworker/u16:3+efi_rts_wq23:45:120
18403992410,240cyclictest30710-21kworker/u16:3+efi_rts_wq22:00:120
18403992410,240cyclictest15091-21kworker/u16:2+efi_rts_wq22:50:140
18406992400,239cyclictest31116-21kworker/u16:4+efi_rts_wq20:20:113
18404992380,237cyclictest20425-21kworker/u16:0+efi_rts_wq23:05:101
18405992370,236cyclictest22984-21kworker/u16:2+efi_rts_wq00:01:092
18405992370,235cyclictest15091-21kworker/u16:2+efi_rts_wq22:50:122
18404992360,235cyclictest31116-21kworker/u16:4+efi_rts_wq20:24:011
18403992360,235cyclictest28071-21kworker/u16:1+efi_rts_wq23:19:330
18405992330,232cyclictest30710-21kworker/u16:3+efi_rts_wq21:24:122
18403992300,229cyclictest22984-21kworker/u16:2+efi_rts_wq00:16:100
18406992290,228cyclictest12588-21kworker/u16:3+efi_rts_wq22:55:133
18403992290,228cyclictest22984-21kworker/u16:2+efi_rts_wq23:09:310
18403992290,228cyclictest19054-21kworker/u16:1+efi_rts_wq22:40:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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