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2026-06-09 - 06:18

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 Tue Jun 09, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168382321315,4sleep30-21swapper/319:07:383
167572318310,5sleep20-21swapper/219:06:372
169132317309,5sleep10-21swapper/119:08:361
167182313307,4sleep00-21swapper/019:06:070
17287993030,302cyclictest16547-21kworker/u16:1+efi_rts_wq22:55:131
17289992990,298cyclictest26231-21kworker/u16:3+efi_rts_wq20:10:133
17286992990,298cyclictest7985-21kworker/u16:2+efi_rts_wq21:15:120
17286992970,296cyclictest26231-21kworker/u16:3+efi_rts_wq21:55:110
17287992960,295cyclictest26231-21kworker/u16:3+efi_rts_wq20:05:161
17286992960,295cyclictest1322-21kworker/u16:3+efi_rts_wq00:10:370
17286992950,294cyclictest11494-21kworker/u16:2+efi_rts_wq23:40:120
17289992940,293cyclictest7985-21kworker/u16:2+efi_rts_wq20:15:133
17287992940,293cyclictest26231-21kworker/u16:3+efi_rts_wq22:45:121
17286992940,293cyclictest26231-21kworker/u16:3+efi_rts_wq19:45:130
17286992930,292cyclictest26231-21kworker/u16:3+efi_rts_wq21:00:050
17287992920,291cyclictest26231-21kworker/u16:3+efi_rts_wq19:50:121
17287992920,291cyclictest14123-21kworker/u16:0+efi_rts_wq22:25:111
17286992920,291cyclictest11494-21kworker/u16:2+efi_rts_wq00:20:390
17289992910,290cyclictest14123-21kworker/u16:0+efi_rts_wq22:40:123
17288992910,290cyclictest26231-21kworker/u16:3+efi_rts_wq22:00:162
17288992910,290cyclictest26231-21kworker/u16:3+efi_rts_wq21:35:122
17288992910,290cyclictest26231-21kworker/u16:3+efi_rts_wq21:10:122
17289992870,286cyclictest11494-21kworker/u16:2+efi_rts_wq23:20:293
17287992870,286cyclictest7985-21kworker/u16:2+efi_rts_wq19:49:511
17286992870,286cyclictest7985-21kworker/u16:2+efi_rts_wq21:25:110
17286992870,286cyclictest26231-21kworker/u16:3+efi_rts_wq20:35:130
17286992870,286cyclictest1322-21kworker/u16:3+efi_rts_wq00:25:140
17287992860,285cyclictest16547-21kworker/u16:1+efi_rts_wq23:10:121
17286992850,284cyclictest7985-21kworker/u16:2+efi_rts_wq20:25:120
17289992830,282cyclictest555-21kworker/u16:0+efi_rts_wq19:29:483
17288992830,282cyclictest14123-21kworker/u16:0+efi_rts_wq22:40:232
17286992830,282cyclictest7985-21kworker/u16:2+efi_rts_wq21:50:140
17287992820,281cyclictest26231-21kworker/u16:3+efi_rts_wq20:24:581
17288992810,280cyclictest26231-21kworker/u16:3+efi_rts_wq20:05:152
17286992810,280cyclictest7985-21kworker/u16:2+efi_rts_wq20:55:120
17287992780,277cyclictest7985-21kworker/u16:2+efi_rts_wq19:10:131
17287992780,277cyclictest555-21kworker/u16:0+efi_rts_wq19:25:131
17287992780,277cyclictest26231-21kworker/u16:3+efi_rts_wq19:39:491
17286992780,277cyclictest7985-21kworker/u16:2+efi_rts_wq20:00:120
17286992770,276cyclictest16547-21kworker/u16:1+efi_rts_wq23:05:260
17289992750,274cyclictest555-21kworker/u16:0+efi_rts_wq19:20:123
17289992750,274cyclictest1322-21kworker/u16:3+efi_rts_wq00:25:403
17287992750,274cyclictest555-21kworker/u16:0+efi_rts_wq19:30:131
17289992740,273cyclictest27073-21kworker/u16:3+efi_rts_wq23:15:103
17286992740,272cyclictest1322-21kworker/u16:3+efi_rts_wq23:50:120
17288992730,272cyclictest1322-21kworker/u16:3+efi_rts_wq23:45:132
17287992730,272cyclictest1322-21kworker/u16:3+efi_rts_wq23:35:121
17289992720,271cyclictest1322-21kworker/u16:3+efi_rts_wq00:30:123
17286992710,270cyclictest1322-21kworker/u16:3+efi_rts_wq00:30:120
17289992700,269cyclictest7985-21kworker/u16:2+efi_rts_wq19:40:133
17286992700,269cyclictest1322-21kworker/u16:3+efi_rts_wq23:55:120
17286992700,268cyclictest14123-21kworker/u16:0+efi_rts_wq22:40:130
17289992690,268cyclictest1322-21kworker/u16:3+efi_rts_wq00:00:133
17289992690,267cyclictest16547-21kworker/u16:1+efi_rts_wq23:25:123
17288992690,268cyclictest7985-21kworker/u16:2+efi_rts_wq21:30:132
17286992690,268cyclictest1322-21kworker/u16:3+efi_rts_wq00:00:120
17286992680,267cyclictest26231-21kworker/u16:3+efi_rts_wq20:10:140
17289992670,266cyclictest1322-21kworker/u16:3+efi_rts_wq23:45:123
17289992640,263cyclictest11494-21kworker/u16:2+efi_rts_wq00:35:123
17287992640,263cyclictest7985-21kworker/u16:2+efi_rts_wq19:44:501
17287992640,262cyclictest1322-21kworker/u16:3+efi_rts_wq00:25:121
17288992630,262cyclictest7985-21kworker/u16:2+efi_rts_wq21:45:132
17288992620,261cyclictest7985-21kworker/u16:2+efi_rts_wq20:25:122
17286992620,260cyclictest16547-21kworker/u16:1+efi_rts_wq23:00:120
17287992600,259cyclictest26231-21kworker/u16:3+efi_rts_wq21:20:121
17287992590,258cyclictest1322-21kworker/u16:3+efi_rts_wq23:55:121
17289992570,256cyclictest14123-21kworker/u16:0+efi_rts_wq22:25:113
17288992570,256cyclictest26231-21kworker/u16:3+efi_rts_wq20:30:122
17288992570,256cyclictest11494-21kworker/u16:2+efi_rts_wq23:30:122
17287992570,256cyclictest26231-21kworker/u16:3+efi_rts_wq21:10:121
17287992560,255cyclictest14123-21kworker/u16:0+efi_rts_wq22:15:101
17287992540,253cyclictest7985-21kworker/u16:2+efi_rts_wq21:40:121
17287992540,253cyclictest7985-21kworker/u16:2+efi_rts_wq21:40:121
17286992540,253cyclictest7985-21kworker/u16:2+efi_rts_wq19:55:130
17286992530,252cyclictest26231-21kworker/u16:3+efi_rts_wq21:45:130
17289992520,251cyclictest26231-21kworker/u16:3+efi_rts_wq21:35:123
17287992520,251cyclictest11494-21kworker/u16:2+efi_rts_wq23:20:131
17289992500,249cyclictest16547-21kworker/u16:1+efi_rts_wq22:55:253
17287992490,248cyclictest14123-21kworker/u16:0+efi_rts_wq22:30:121
17286992490,248cyclictest7985-21kworker/u16:2+efi_rts_wq21:05:130
17286992480,247cyclictest7985-21kworker/u16:2+efi_rts_wq19:35:130
17286992470,246cyclictest11494-21kworker/u16:2+efi_rts_wq00:15:130
17288992460,245cyclictest26231-21kworker/u16:3+efi_rts_wq21:55:152
17286992460,245cyclictest26231-21kworker/u16:3+efi_rts_wq21:30:100
17286992460,245cyclictest14123-21kworker/u16:0+efi_rts_wq22:15:180
17289992450,244cyclictest26231-21kworker/u16:3+efi_rts_wq21:00:123
17286992390,238cyclictest26231-21kworker/u16:3+efi_rts_wq22:20:140
17287992370,236cyclictest555-21kworker/u16:0+efi_rts_wq19:20:121
17287992360,235cyclictest26231-21kworker/u16:3+efi_rts_wq21:05:061
17287992360,234cyclictest1322-21kworker/u16:3+efi_rts_wq00:00:361
17287992350,234cyclictest7985-21kworker/u16:2+efi_rts_wq19:55:131
17286992350,234cyclictest7985-21kworker/u16:2+efi_rts_wq19:40:130
17289992330,232cyclictest1322-21kworker/u16:3+efi_rts_wq23:50:123
17288992320,231cyclictest7985-21kworker/u16:2+efi_rts_wq20:15:122
17289992310,228cyclictest14123-21kworker/u16:0+efi_rts_wq22:35:113
17286992310,230cyclictest11494-21kworker/u16:2+efi_rts_wq23:25:300
17287992270,226cyclictest555-21kworker/u16:0+efi_rts_wq19:15:011
17289992250,224cyclictest7985-21kworker/u16:2+efi_rts_wq20:40:133
17288992240,223cyclictest7985-21kworker/u16:2+efi_rts_wq20:04:532
17288992240,223cyclictest27073-21kworker/u16:3+efi_rts_wq23:15:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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