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2026-07-06 - 03:34

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 Mon Jul 06, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115712338313,23sleep10-21swapper/119:06:591
115582334312,5sleep30-21swapper/319:06:483
117352323317,4sleep00-21swapper/019:09:060
115932317304,4sleep20-21swapper/219:07:162
12074993010,300cyclictest3395-21kworker/u16:0+efi_rts_wq00:20:132
12072993000,299cyclictest18242-21kworker/u16:3+efi_rts_wq20:30:120
12075992990,298cyclictest18242-21kworker/u16:3+efi_rts_wq19:25:123
12073992990,298cyclictest905-21kworker/u16:1+efi_rts_wq21:35:131
12073992980,297cyclictest18242-21kworker/u16:3+efi_rts_wq23:56:101
12073992980,297cyclictest18242-21kworker/u16:3+efi_rts_wq21:55:121
12075992970,296cyclictest3395-21kworker/u16:0+efi_rts_wq00:21:143
12074992970,296cyclictest18242-21kworker/u16:3+efi_rts_wq23:30:112
12073992970,295cyclictest18242-21kworker/u16:3+efi_rts_wq21:20:131
12072992970,296cyclictest20719-21kworker/u16:0+efi_rts_wq21:00:130
12074992950,293cyclictest905-21kworker/u16:1+efi_rts_wq23:00:132
12075992930,292cyclictest18242-21kworker/u16:3+efi_rts_wq21:55:133
12075992920,291cyclictest3395-21kworker/u16:0+efi_rts_wq00:05:143
12073992920,290cyclictest18242-21kworker/u16:3+efi_rts_wq22:35:101
12075992900,289cyclictest18242-21kworker/u16:3+efi_rts_wq23:40:143
12073992900,289cyclictest905-21kworker/u16:1+efi_rts_wq22:45:241
12073992900,289cyclictest905-21kworker/u16:1+efi_rts_wq22:05:141
12075992890,288cyclictest3395-21kworker/u16:0+efi_rts_wq00:30:113
12075992890,288cyclictest20719-21kworker/u16:0+efi_rts_wq19:40:143
12072992890,288cyclictest18242-21kworker/u16:3+efi_rts_wq21:40:140
12075992880,287cyclictest20719-21kworker/u16:0+efi_rts_wq19:55:133
12075992880,287cyclictest18242-21kworker/u16:3+efi_rts_wq20:35:133
12072992880,287cyclictest5497-21kworker/u16:1+efi_rts_wq19:20:120
12072992880,287cyclictest18242-21kworker/u16:3+efi_rts_wq20:10:140
12074992870,286cyclictest5664-21kworker/u16:1+efi_rts_wq00:00:112
12073992870,286cyclictest5664-21kworker/u16:1+efi_rts_wq00:00:111
12072992870,286cyclictest905-21kworker/u16:1+efi_rts_wq23:00:120
12075992850,284cyclictest905-21kworker/u16:1+efi_rts_wq21:35:133
12072992850,284cyclictest905-21kworker/u16:1+efi_rts_wq22:25:130
12075992830,282cyclictest20719-21kworker/u16:0+efi_rts_wq20:40:133
12072992830,282cyclictest20719-21kworker/u16:0+efi_rts_wq20:00:130
12074992820,281cyclictest3395-21kworker/u16:0+efi_rts_wq00:15:132
12074992820,281cyclictest20719-21kworker/u16:0+efi_rts_wq20:05:132
12073992820,281cyclictest905-21kworker/u16:1+efi_rts_wq23:25:131
12073992820,281cyclictest18242-21kworker/u16:3+efi_rts_wq22:15:191
12075992800,279cyclictest572-21kworker/u16:2+efi_rts_wq23:45:123
12073992800,279cyclictest20719-21kworker/u16:0+efi_rts_wq20:40:021
12073992800,279cyclictest18242-21kworker/u16:3+efi_rts_wq22:10:131
12073992800,279cyclictest18242-21kworker/u16:3+efi_rts_wq19:50:131
12075992780,276cyclictest5664-21kworker/u16:1+efi_rts_wq23:55:123
12073992780,277cyclictest905-21kworker/u16:1+efi_rts_wq21:50:131
12073992780,276cyclictest18242-21kworker/u16:3+efi_rts_wq23:15:121
12075992770,275cyclictest20719-21kworker/u16:0+efi_rts_wq19:45:113
12075992760,275cyclictest3395-21kworker/u16:0+efi_rts_wq00:25:143
12075992760,275cyclictest18242-21kworker/u16:3+efi_rts_wq23:35:123
12074992760,275cyclictest18242-21kworker/u16:3+efi_rts_wq20:55:122
12075992750,274cyclictest18242-21kworker/u16:3+efi_rts_wq22:10:133
12075992750,274cyclictest18242-21kworker/u16:3+efi_rts_wq20:45:123
12074992750,274cyclictest20719-21kworker/u16:0+efi_rts_wq21:10:122
12073992740,273cyclictest20719-21kworker/u16:0+efi_rts_wq21:30:121
12072992730,272cyclictest5664-21kworker/u16:1+efi_rts_wq00:10:140
12073992720,271cyclictest18242-21kworker/u16:3+efi_rts_wq21:15:131
12075992690,268cyclictest18242-21kworker/u16:3+efi_rts_wq19:35:143
12073992690,268cyclictest20719-21kworker/u16:0+efi_rts_wq19:40:141
12073992670,266cyclictest5497-21kworker/u16:1+efi_rts_wq19:15:131
12073992670,265cyclictest6842-21kworker/u16:2+efi_rts_wq23:00:291
12072992670,266cyclictest5664-21kworker/u16:1+efi_rts_wq00:35:130
12075992660,265cyclictest5664-21kworker/u16:1+efi_rts_wq00:11:123
12073992650,264cyclictest572-21kworker/u16:2+efi_rts_wq23:45:131
12073992640,263cyclictest16991-21kworker/u16:0+efi_rts_wq23:10:131
12074992630,259cyclictest18242-21kworker/u16:3+efi_rts_wq22:30:132
12073992630,262cyclictest5497-21kworker/u16:1+efi_rts_wq19:10:111
12072992630,262cyclictest18242-21kworker/u16:3+efi_rts_wq22:05:180
12075992620,261cyclictest18242-21kworker/u16:3+efi_rts_wq20:09:583
12074992610,260cyclictest5497-21kworker/u16:1+efi_rts_wq19:15:012
12075992600,259cyclictest18242-21kworker/u16:3+efi_rts_wq21:45:143
12073992570,256cyclictest5664-21kworker/u16:1+efi_rts_wq00:35:121
12072992570,256cyclictest18242-21kworker/u16:3+efi_rts_wq21:05:070
12074992560,255cyclictest5664-21kworker/u16:1+efi_rts_wq23:55:132
12075992540,253cyclictest20719-21kworker/u16:0+efi_rts_wq20:50:143
12073992540,253cyclictest20719-21kworker/u16:0+efi_rts_wq19:34:511
12075992530,252cyclictest18242-21kworker/u16:3+efi_rts_wq20:15:123
12073992530,252cyclictest5664-21kworker/u16:1+efi_rts_wq23:50:121
12072992530,252cyclictest20719-21kworker/u16:0+efi_rts_wq19:45:110
12072992520,251cyclictest18242-21kworker/u16:3+efi_rts_wq20:25:130
12072992520,251cyclictest18242-21kworker/u16:3+efi_rts_wq20:25:120
12075992510,250cyclictest18242-21kworker/u16:3+efi_rts_wq22:00:133
12074992510,250cyclictest905-21kworker/u16:1+efi_rts_wq23:40:352
12073992510,250cyclictest18242-21kworker/u16:3+efi_rts_wq23:40:131
12074992500,249cyclictest905-21kworker/u16:1+efi_rts_wq22:40:132
12074992480,247cyclictest18242-21kworker/u16:3+efi_rts_wq21:40:132
12072992460,245cyclictest905-21kworker/u16:1+efi_rts_wq21:35:120
12072992460,245cyclictest18242-21kworker/u16:3+efi_rts_wq23:15:120
12073992420,241cyclictest18242-21kworker/u16:3+efi_rts_wq20:25:001
12074992410,240cyclictest18242-21kworker/u16:3+efi_rts_wq20:30:122
12072992410,240cyclictest20719-21kworker/u16:0+efi_rts_wq20:40:120
12075992400,239cyclictest905-21kworker/u16:1+efi_rts_wq22:30:223
12075992400,239cyclictest18242-21kworker/u16:3+efi_rts_wq23:20:153
12075992390,238cyclictest18242-21kworker/u16:3+efi_rts_wq23:05:293
12073992390,238cyclictest18242-21kworker/u16:3+efi_rts_wq21:45:121
12072992370,235cyclictest18242-21kworker/u16:3+efi_rts_wq21:25:120
12072992360,235cyclictest18242-21kworker/u16:3+efi_rts_wq23:25:130
12074992340,233cyclictest20719-21kworker/u16:0+efi_rts_wq21:05:132
12074992320,231cyclictest20719-21kworker/u16:0+efi_rts_wq19:55:132
12074992320,231cyclictest18242-21kworker/u16:3+efi_rts_wq20:20:142
12073992300,229cyclictest20719-21kworker/u16:0+efi_rts_wq20:30:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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