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2026-09-08 - 07:05

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 Sep 08, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109362337312,23sleep00-21swapper/019:09:270
108012320306,4sleep10-21swapper/119:07:431
107602318311,5sleep30-21swapper/319:07:133
108242316309,5sleep20-21swapper/219:08:002
11243993040,301cyclictest12023-21kworker/u16:2+efi_rts_wq19:40:122
11243993040,301cyclictest12023-21kworker/u16:2+efi_rts_wq19:40:122
11243993010,300cyclictest12023-21kworker/u16:2+efi_rts_wq21:40:362
11241993000,299cyclictest9819-21kworker/u16:3+efi_rts_wq22:55:130
11241992990,298cyclictest9819-21kworker/u16:3+efi_rts_wq21:50:380
11244992980,297cyclictest25695-21kworker/u16:0+efi_rts_wq00:36:103
11241992980,297cyclictest12909-21kworker/u16:0+efi_rts_wq20:50:270
11244992960,295cyclictest9819-21kworker/u16:3+efi_rts_wq23:10:173
11242992960,295cyclictest11001-21kworker/u16:0+efi_rts_wq23:05:531
11243992950,294cyclictest9819-21kworker/u16:3+efi_rts_wq22:35:132
11241992950,294cyclictest9819-21kworker/u16:3+efi_rts_wq22:20:130
11243992930,291cyclictest9819-21kworker/u16:3+efi_rts_wq23:10:172
11242992920,291cyclictest12023-21kworker/u16:2+efi_rts_wq21:35:141
11244992910,290cyclictest12909-21kworker/u16:0+efi_rts_wq21:30:163
11243992910,290cyclictest12909-21kworker/u16:0+efi_rts_wq20:45:122
11241992910,290cyclictest12023-21kworker/u16:2+efi_rts_wq22:05:410
11244992890,288cyclictest12023-21kworker/u16:2+efi_rts_wq19:35:133
11242992890,288cyclictest21162-21kworker/u16:2+efi_rts_wq00:31:081
11241992880,287cyclictest20211-21kworker/u16:1+efi_rts_wq19:15:130
11244992870,286cyclictest12023-21kworker/u16:2+efi_rts_wq21:55:133
11242992870,286cyclictest11001-21kworker/u16:0+efi_rts_wq23:00:531
11241992870,286cyclictest20211-21kworker/u16:1+efi_rts_wq20:05:130
11241992860,285cyclictest12909-21kworker/u16:0+efi_rts_wq21:30:340
11243992850,284cyclictest20211-21kworker/u16:1+efi_rts_wq20:05:182
11242992850,284cyclictest25695-21kworker/u16:0+efi_rts_wq00:16:061
11244992840,283cyclictest3327-21kworker/u16:1+efi_rts_wq22:45:133
11243992840,283cyclictest9819-21kworker/u16:3+efi_rts_wq22:00:102
11243992830,281cyclictest12023-21kworker/u16:2+efi_rts_wq21:25:122
11241992830,282cyclictest9819-21kworker/u16:3+efi_rts_wq22:10:160
11244992820,281cyclictest20211-21kworker/u16:1+efi_rts_wq19:55:153
11241992820,281cyclictest11001-21kworker/u16:0+efi_rts_wq23:00:120
11244992810,280cyclictest3327-21kworker/u16:1+efi_rts_wq22:40:133
11241992810,280cyclictest25695-21kworker/u16:0+efi_rts_wq00:00:120
11241992810,280cyclictest12023-21kworker/u16:2+efi_rts_wq22:15:430
11243992800,279cyclictest12023-21kworker/u16:2+efi_rts_wq21:35:362
11242992800,279cyclictest21162-21kworker/u16:2+efi_rts_wq23:30:121
11243992780,277cyclictest12023-21kworker/u16:2+efi_rts_wq20:55:112
11241992780,277cyclictest20211-21kworker/u16:1+efi_rts_wq19:55:130
11241992770,276cyclictest12023-21kworker/u16:2+efi_rts_wq21:25:120
11241992760,275cyclictest12023-21kworker/u16:2+efi_rts_wq20:00:130
11244992740,273cyclictest25695-21kworker/u16:0+efi_rts_wq23:45:123
11242992740,273cyclictest9819-21kworker/u16:3+efi_rts_wq22:10:421
11241992740,273cyclictest21162-21kworker/u16:2+efi_rts_wq23:50:170
11241992740,273cyclictest12023-21kworker/u16:2+efi_rts_wq21:05:160
11241992740,273cyclictest12023-21kworker/u16:2+efi_rts_wq20:20:120
11244992730,272cyclictest9819-21kworker/u16:3+efi_rts_wq22:20:443
11244992730,272cyclictest21162-21kworker/u16:2+efi_rts_wq23:25:133
11241992730,272cyclictest12023-21kworker/u16:2+efi_rts_wq19:20:090
11243992720,271cyclictest20211-21kworker/u16:1+efi_rts_wq19:35:122
11242992720,271cyclictest9819-21kworker/u16:3+efi_rts_wq23:10:551
11243992710,270cyclictest12023-21kworker/u16:2+efi_rts_wq21:05:302
11242992710,270cyclictest12909-21kworker/u16:0+efi_rts_wq20:50:111
11242992700,269cyclictest9819-21kworker/u16:3+efi_rts_wq22:00:401
11242992690,268cyclictest9819-21kworker/u16:3+efi_rts_wq22:30:141
11243992670,265cyclictest25695-21kworker/u16:0+efi_rts_wq23:55:132
11242992670,266cyclictest12023-21kworker/u16:2+efi_rts_wq19:40:111
11242992670,266cyclictest12023-21kworker/u16:2+efi_rts_wq19:40:101
11242992660,265cyclictest25695-21kworker/u16:0+efi_rts_wq00:05:121
11241992660,265cyclictest12023-21kworker/u16:2+efi_rts_wq21:35:130
11243992640,263cyclictest3327-21kworker/u16:1+efi_rts_wq22:55:512
11241992640,263cyclictest12023-21kworker/u16:2+efi_rts_wq22:30:470
11242992630,262cyclictest21162-21kworker/u16:2+efi_rts_wq00:20:121
11242992630,262cyclictest12909-21kworker/u16:0+efi_rts_wq21:00:141
11241992630,262cyclictest21162-21kworker/u16:2+efi_rts_wq00:11:040
11244992610,260cyclictest20211-21kworker/u16:1+efi_rts_wq19:15:013
11242992600,258cyclictest25695-21kworker/u16:0+efi_rts_wq00:00:121
11241992600,259cyclictest21162-21kworker/u16:2+efi_rts_wq23:25:140
11244992590,258cyclictest12909-21kworker/u16:0+efi_rts_wq21:20:153
11244992590,258cyclictest12023-21kworker/u16:2+efi_rts_wq19:20:123
11242992590,258cyclictest25695-21kworker/u16:0+efi_rts_wq00:25:141
11244992570,256cyclictest20211-21kworker/u16:1+efi_rts_wq19:25:123
11242992550,254cyclictest12023-21kworker/u16:2+efi_rts_wq21:45:381
11241992550,253cyclictest21162-21kworker/u16:2+efi_rts_wq00:20:130
11243992540,253cyclictest12023-21kworker/u16:2+efi_rts_wq19:10:142
11243992520,251cyclictest12909-21kworker/u16:0+efi_rts_wq20:30:132
11241992520,251cyclictest25695-21kworker/u16:0+efi_rts_wq00:15:130
11242992500,249cyclictest12023-21kworker/u16:2+efi_rts_wq19:25:091
11242992500,247cyclictest21162-21kworker/u16:2+efi_rts_wq23:40:131
11242992490,248cyclictest12023-21kworker/u16:2+efi_rts_wq20:15:131
11242992480,246cyclictest3327-21kworker/u16:1+efi_rts_wq22:50:181
11243992460,245cyclictest12909-21kworker/u16:0+efi_rts_wq20:50:112
11242992450,244cyclictest20211-21kworker/u16:1+efi_rts_wq20:25:121
11241992450,244cyclictest20211-21kworker/u16:1+efi_rts_wq19:25:130
11241992440,243cyclictest9819-21kworker/u16:3+efi_rts_wq23:05:130
11244992430,242cyclictest12023-21kworker/u16:2+efi_rts_wq21:25:333
11243992430,242cyclictest12909-21kworker/u16:0+efi_rts_wq21:00:142
11242992430,242cyclictest20211-21kworker/u16:1+efi_rts_wq19:15:121
11242992430,242cyclictest12023-21kworker/u16:2+efi_rts_wq20:20:201
11241992410,239cyclictest16060-21kworker/u16:1+efi_rts_wq23:20:120
11244992400,239cyclictest21162-21kworker/u16:2+efi_rts_wq23:30:123
11244992370,236cyclictest12023-21kworker/u16:2+efi_rts_wq19:30:153
11244992340,233cyclictest12023-21kworker/u16:2+efi_rts_wq19:50:143
11242992340,233cyclictest12023-21kworker/u16:2+efi_rts_wq20:40:251
11244992330,232cyclictest12909-21kworker/u16:0+efi_rts_wq21:10:133
11244992330,232cyclictest12023-21kworker/u16:2+efi_rts_wq19:10:143
11241992320,231cyclictest16060-21kworker/u16:1+efi_rts_wq23:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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