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2026-07-11 - 14:18

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 Sat Jul 11, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107432324318,4sleep10-21swapper/119:07:481
108642317311,4sleep20-21swapper/219:09:212
105872317305,9sleep00-21swapper/019:05:460
105852317309,5sleep30-21swapper/319:05:453
11182992980,297cyclictest22995-21kworker/u16:3+efi_rts_wq22:55:123
11181992980,297cyclictest22995-21kworker/u16:3+efi_rts_wq20:45:132
11182992970,296cyclictest22995-21kworker/u16:3+efi_rts_wq22:10:123
11181992960,295cyclictest19478-21kworker/u16:2+efi_rts_wq19:40:112
11180992950,294cyclictest22995-21kworker/u16:3+efi_rts_wq20:09:181
11179992950,294cyclictest22995-21kworker/u16:3+efi_rts_wq21:40:120
11179992950,294cyclictest22995-21kworker/u16:3+efi_rts_wq19:30:130
11182992940,293cyclictest19478-21kworker/u16:2+efi_rts_wq21:14:313
11181992930,292cyclictest22995-21kworker/u16:3+efi_rts_wq19:24:102
11182992920,290cyclictest19478-21kworker/u16:2+efi_rts_wq21:45:113
11182992920,290cyclictest19478-21kworker/u16:2+efi_rts_wq21:45:113
11181992920,291cyclictest19478-21kworker/u16:2+efi_rts_wq23:55:122
11179992900,289cyclictest22995-21kworker/u16:3+efi_rts_wq21:05:120
11182992890,288cyclictest19478-21kworker/u16:2+efi_rts_wq19:10:113
11179992870,286cyclictest19478-21kworker/u16:2+efi_rts_wq19:10:120
11182992860,285cyclictest19478-21kworker/u16:2+efi_rts_wq20:34:233
11180992860,285cyclictest19478-21kworker/u16:2+efi_rts_wq21:45:111
11180992860,285cyclictest19478-21kworker/u16:2+efi_rts_wq21:45:111
11182992850,284cyclictest22078-21kworker/u16:1+efi_rts_wq23:25:113
11181992840,283cyclictest22995-21kworker/u16:3+efi_rts_wq21:29:332
11181992840,283cyclictest22995-21kworker/u16:3+efi_rts_wq20:15:102
11180992840,283cyclictest19478-21kworker/u16:2+efi_rts_wq23:00:121
11179992840,283cyclictest22995-21kworker/u16:3+efi_rts_wq19:45:150
11181992830,282cyclictest19478-21kworker/u16:2+efi_rts_wq00:10:102
11182992820,281cyclictest22995-21kworker/u16:3+efi_rts_wq20:25:113
11179992820,281cyclictest19478-21kworker/u16:2+efi_rts_wq19:44:140
11182992810,280cyclictest22995-21kworker/u16:3+efi_rts_wq21:25:143
11181992810,278cyclictest19478-21kworker/u16:2+efi_rts_wq00:30:132
11181992800,279cyclictest22995-21kworker/u16:3+efi_rts_wq23:05:122
11180992800,279cyclictest22078-21kworker/u16:1+efi_rts_wq23:29:561
11182992790,278cyclictest22995-21kworker/u16:3+efi_rts_wq22:40:133
11182992790,278cyclictest22995-21kworker/u16:3+efi_rts_wq19:50:123
11182992790,276cyclictest22995-21kworker/u16:3+efi_rts_wq19:55:133
11182992790,276cyclictest19478-21kworker/u16:2+efi_rts_wq21:00:133
11182992780,277cyclictest22995-21kworker/u16:3+efi_rts_wq21:34:343
11182992780,277cyclictest19478-21kworker/u16:2+efi_rts_wq00:00:123
11182992770,276cyclictest22078-21kworker/u16:1+efi_rts_wq00:15:133
11182992770,276cyclictest19478-21kworker/u16:2+efi_rts_wq23:51:203
11180992760,275cyclictest22995-21kworker/u16:3+efi_rts_wq20:25:121
11180992750,274cyclictest22995-21kworker/u16:3+efi_rts_wq21:15:131
11180992750,274cyclictest19478-21kworker/u16:2+efi_rts_wq23:35:111
11179992750,274cyclictest22995-21kworker/u16:3+efi_rts_wq22:40:120
11180992740,273cyclictest19478-21kworker/u16:2+efi_rts_wq23:45:121
11182992730,272cyclictest22995-21kworker/u16:3+efi_rts_wq19:20:133
11181992720,271cyclictest19478-21kworker/u16:2+efi_rts_wq19:25:132
11179992720,271cyclictest19478-21kworker/u16:2+efi_rts_wq22:29:430
11180992710,270cyclictest19478-21kworker/u16:2+efi_rts_wq23:20:121
11180992690,268cyclictest22995-21kworker/u16:3+efi_rts_wq21:50:101
11181992680,267cyclictest22995-21kworker/u16:3+efi_rts_wq22:55:122
11182992670,266cyclictest19478-21kworker/u16:2+efi_rts_wq23:20:133
11181992660,265cyclictest19478-21kworker/u16:2+efi_rts_wq22:50:132
11180992660,265cyclictest22995-21kworker/u16:3+efi_rts_wq22:45:131
11181992640,263cyclictest22995-21kworker/u16:3+efi_rts_wq22:35:122
11181992640,263cyclictest19478-21kworker/u16:2+efi_rts_wq20:10:192
11179992640,263cyclictest19478-21kworker/u16:2+efi_rts_wq22:05:130
11179992640,263cyclictest19478-21kworker/u16:2+efi_rts_wq21:55:120
11179992630,262cyclictest19478-21kworker/u16:2+efi_rts_wq23:30:120
11179992620,261cyclictest19478-21kworker/u16:2+efi_rts_wq22:15:130
11182992600,259cyclictest22995-21kworker/u16:3+efi_rts_wq22:30:123
11182992600,259cyclictest22078-21kworker/u16:1+efi_rts_wq00:05:133
11182992600,258cyclictest19478-21kworker/u16:2+efi_rts_wq21:35:123
11179992600,257cyclictest19478-21kworker/u16:2+efi_rts_wq20:20:120
11180992590,258cyclictest19478-21kworker/u16:2+efi_rts_wq22:39:461
11179992590,258cyclictest19478-21kworker/u16:2+efi_rts_wq20:14:180
11181992580,257cyclictest22078-21kworker/u16:1+efi_rts_wq00:35:122
11179992570,256cyclictest19478-21kworker/u16:2+efi_rts_wq23:14:530
11179992570,256cyclictest19478-21kworker/u16:2+efi_rts_wq00:10:110
11179992570,255cyclictest19478-21kworker/u16:2+efi_rts_wq23:50:120
11181992560,255cyclictest22995-21kworker/u16:3+efi_rts_wq22:00:122
11181992550,254cyclictest19478-21kworker/u16:2+efi_rts_wq20:00:132
11182992530,252cyclictest22995-21kworker/u16:3+efi_rts_wq21:40:123
11182992530,251cyclictest19478-21kworker/u16:2+efi_rts_wq19:15:013
11179992530,252cyclictest22995-21kworker/u16:3+efi_rts_wq22:10:120
11181992480,246cyclictest22995-21kworker/u16:3+efi_rts_wq23:15:132
11180992470,246cyclictest19478-21kworker/u16:2+efi_rts_wq19:40:111
11179992470,246cyclictest19478-21kworker/u16:2+efi_rts_wq21:24:320
11181992460,245cyclictest22995-21kworker/u16:3+efi_rts_wq20:55:122
11182992440,243cyclictest19478-21kworker/u16:2+efi_rts_wq23:30:123
11179992440,243cyclictest22078-21kworker/u16:1+efi_rts_wq23:40:130
11179992430,242cyclictest19478-21kworker/u16:2+efi_rts_wq23:55:120
11180992410,240cyclictest22995-21kworker/u16:3+efi_rts_wq19:35:121
11180992380,237cyclictest19478-21kworker/u16:2+efi_rts_wq19:15:121
11179992380,237cyclictest22995-21kworker/u16:3+efi_rts_wq20:49:250
11179992360,235cyclictest19478-21kworker/u16:2+efi_rts_wq20:50:100
11180992350,234cyclictest19478-21kworker/u16:2+efi_rts_wq00:20:121
11181992340,233cyclictest22995-21kworker/u16:3+efi_rts_wq23:10:122
11182992330,232cyclictest19478-21kworker/u16:2+efi_rts_wq19:34:123
11180992320,231cyclictest19478-21kworker/u16:2+efi_rts_wq20:50:111
11181992310,230cyclictest19478-21kworker/u16:2+efi_rts_wq20:39:232
11180992310,230cyclictest22995-21kworker/u16:3+efi_rts_wq22:20:121
11179992310,230cyclictest22995-21kworker/u16:3+efi_rts_wq20:40:130
11182992290,228cyclictest19478-21kworker/u16:2+efi_rts_wq23:56:213
11179992270,226cyclictest22995-21kworker/u16:3+efi_rts_wq21:25:140
11180992260,225cyclictest22995-21kworker/u16:3+efi_rts_wq23:09:521
11180992210,220cyclictest19478-21kworker/u16:2+efi_rts_wq21:10:111
11181992190,218cyclictest19478-21kworker/u16:2+efi_rts_wq19:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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