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2026-05-27 - 08:24

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 Wed May 27, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59502333311,5sleep20-21swapper/219:09:082
57852316303,4sleep10-21swapper/119:07:001
56872316309,5sleep30-21swapper/319:05:453
41802316302,4sleep00-21swapper/019:05:070
6283993020,301cyclictest13301-21kworker/u16:1+efi_rts_wq00:10:120
6286993010,300cyclictest13301-21kworker/u16:1+efi_rts_wq23:25:123
6283992990,298cyclictest1805-21kworker/u16:0+efi_rts_wq19:35:120
6286992980,297cyclictest16961-21kworker/u16:4+efi_rts_wq19:45:103
6284992980,297cyclictest13301-21kworker/u16:1+efi_rts_wq23:10:141
6283992980,297cyclictest7277-21kworker/u16:0+efi_rts_wq22:15:120
6286992970,296cyclictest22494-21kworker/u16:3+efi_rts_wq23:50:083
6283992950,294cyclictest29238-21kworker/u16:3+efi_rts_wq19:24:170
6284992940,293cyclictest20464-21kworker/u16:0+efi_rts_wq21:20:131
6284992920,291cyclictest1127-21kworker/u16:1+efi_rts_wq20:54:351
6285992910,290cyclictest13301-21kworker/u16:1+efi_rts_wq23:15:122
6283992910,290cyclictest3366-21kworker/u16:2+efi_rts_wq21:35:140
6285992900,289cyclictest13301-21kworker/u16:1+efi_rts_wq00:20:132
6283992890,288cyclictest8846-21kworker/u16:3+efi_rts_wq00:30:120
6285992880,287cyclictest31082-21kworker/u16:1+efi_rts_wq21:40:122
6286992870,284cyclictest1127-21kworker/u16:1+efi_rts_wq20:25:123
6283992870,286cyclictest16961-21kworker/u16:4+efi_rts_wq19:44:210
6286992850,284cyclictest27128-21kworker/u16:2+efi_rts_wq00:15:103
6284992850,284cyclictest29238-21kworker/u16:3+efi_rts_wq19:15:011
6286992840,283cyclictest13301-21kworker/u16:1+efi_rts_wq23:15:123
6286992840,282cyclictest13301-21kworker/u16:1+efi_rts_wq23:30:053
6285992840,283cyclictest16961-21kworker/u16:4+efi_rts_wq19:50:142
6285992840,283cyclictest11343-21kworker/u16:3+efi_rts_wq22:05:112
6286992830,282cyclictest1127-21kworker/u16:1+efi_rts_wq20:24:293
6285992830,281cyclictest13301-21kworker/u16:1+efi_rts_wq23:20:122
6286992820,281cyclictest22494-21kworker/u16:3+efi_rts_wq23:40:123
6283992820,281cyclictest27128-21kworker/u16:2+efi_rts_wq23:55:120
6285992800,279cyclictest7277-21kworker/u16:0+efi_rts_wq22:25:132
6285992800,279cyclictest27128-21kworker/u16:2+efi_rts_wq00:00:092
6284992800,279cyclictest29238-21kworker/u16:3+efi_rts_wq19:25:121
6284992800,279cyclictest27128-21kworker/u16:2+efi_rts_wq00:05:151
6284992800,279cyclictest11343-21kworker/u16:3+efi_rts_wq22:09:481
6285992790,278cyclictest17635-21kworker/u16:2+efi_rts_wq22:50:142
6284992780,277cyclictest8846-21kworker/u16:3+efi_rts_wq00:35:141
6283992780,277cyclictest8846-21kworker/u16:3+efi_rts_wq00:35:140
6283992770,275cyclictest11343-21kworker/u16:3+efi_rts_wq22:40:120
6285992760,275cyclictest31082-21kworker/u16:1+efi_rts_wq21:45:122
6283992730,272cyclictest22494-21kworker/u16:3+efi_rts_wq23:35:130
6283992730,272cyclictest20464-21kworker/u16:0+efi_rts_wq21:15:130
6286992700,269cyclictest11343-21kworker/u16:3+efi_rts_wq22:04:473
6286992700,269cyclictest1127-21kworker/u16:1+efi_rts_wq20:50:143
6284992700,269cyclictest22494-21kworker/u16:3+efi_rts_wq23:35:131
6283992700,269cyclictest27128-21kworker/u16:2+efi_rts_wq00:05:150
6284992690,268cyclictest26179-21kworker/u16:1+efi_rts_wq22:35:121
6286992670,266cyclictest16826-21kworker/u16:3+efi_rts_wq21:10:143
6285992670,266cyclictest13301-21kworker/u16:1+efi_rts_wq23:10:142
6285992660,265cyclictest13301-21kworker/u16:1+efi_rts_wq23:45:122
6284992650,264cyclictest31931-21kworker/u16:0+efi_rts_wq22:59:581
6284992650,264cyclictest1805-21kworker/u16:0+efi_rts_wq20:04:251
6286992640,263cyclictest27128-21kworker/u16:2+efi_rts_wq00:10:113
6286992640,263cyclictest1127-21kworker/u16:1+efi_rts_wq20:40:133
6283992640,263cyclictest16961-21kworker/u16:4+efi_rts_wq20:05:130
6286992630,262cyclictest31082-21kworker/u16:1+efi_rts_wq21:50:133
6286992610,260cyclictest13301-21kworker/u16:1+efi_rts_wq00:00:133
6285992610,259cyclictest7277-21kworker/u16:0+efi_rts_wq21:55:122
6283992600,259cyclictest11692-21kworker/u16:1+efi_rts_wq19:10:130
6284992580,257cyclictest31082-21kworker/u16:1+efi_rts_wq21:30:141
6284992580,257cyclictest1805-21kworker/u16:0+efi_rts_wq19:40:121
6284992580,257cyclictest13301-21kworker/u16:1+efi_rts_wq23:15:131
6285992570,256cyclictest8846-21kworker/u16:3+efi_rts_wq00:25:112
6286992560,255cyclictest3366-21kworker/u16:2+efi_rts_wq21:44:443
6286992550,254cyclictest27128-21kworker/u16:2+efi_rts_wq23:55:113
6283992550,254cyclictest16961-21kworker/u16:4+efi_rts_wq20:10:130
6283992550,254cyclictest13301-21kworker/u16:1+efi_rts_wq00:15:130
6284992540,253cyclictest1127-21kworker/u16:1+efi_rts_wq20:30:141
6284992530,252cyclictest22494-21kworker/u16:3+efi_rts_wq23:40:121
6283992520,251cyclictest7277-21kworker/u16:0+efi_rts_wq22:00:130
6284992510,250cyclictest1127-21kworker/u16:1+efi_rts_wq20:15:131
6283992510,250cyclictest1805-21kworker/u16:0+efi_rts_wq19:34:190
6286992490,248cyclictest1127-21kworker/u16:1+efi_rts_wq20:39:313
6286992470,245cyclictest5528-21kworker/u16:4+efi_rts_wq23:00:123
6283992470,246cyclictest1127-21kworker/u16:1+efi_rts_wq20:45:130
6284992460,245cyclictest7277-21kworker/u16:0+efi_rts_wq22:19:511
6283992460,245cyclictest5528-21kworker/u16:4+efi_rts_wq23:05:130
6285992450,242cyclictest14910-21kworker/u16:2+efi_rts_wq19:30:122
6283992430,240cyclictest31082-21kworker/u16:1+efi_rts_wq21:30:130
6286992410,240cyclictest717-21kworker/u16:4+efi_rts_wq21:34:423
6285992380,237cyclictest13301-21kworker/u16:1+efi_rts_wq23:40:072
6283992380,237cyclictest16826-21kworker/u16:3+efi_rts_wq21:05:130
6285992360,235cyclictest16826-21kworker/u16:3+efi_rts_wq21:25:132
6283992360,235cyclictest26179-21kworker/u16:1+efi_rts_wq22:30:110
6284992350,234cyclictest16961-21kworker/u16:4+efi_rts_wq19:59:241
6284992340,233cyclictest1127-21kworker/u16:1+efi_rts_wq20:35:141
6283992330,232cyclictest20464-21kworker/u16:0+efi_rts_wq21:00:130
6285992260,223cyclictest7277-21kworker/u16:0+efi_rts_wq22:10:122
6285992250,224cyclictest16961-21kworker/u16:4+efi_rts_wq19:55:102
6286992230,222cyclictest11343-21kworker/u16:3+efi_rts_wq22:45:123
6286992210,220cyclictest5528-21kworker/u16:4+efi_rts_wq22:55:123
6284992200,219cyclictest11343-21kworker/u16:3+efi_rts_wq21:54:461
6285992190,218cyclictest1805-21kworker/u16:0+efi_rts_wq19:40:122
6285992170,216cyclictest16961-21kworker/u16:4+efi_rts_wq20:00:132
6284992160,215cyclictest3366-21kworker/u16:2+efi_rts_wq21:35:131
6286992140,213cyclictest26179-21kworker/u16:1+efi_rts_wq22:35:103
6284992140,213cyclictest14910-21kworker/u16:2+efi_rts_wq19:30:121
6284992130,212cyclictest11343-21kworker/u16:3+efi_rts_wq21:59:461
6285992110,209cyclictest5528-21kworker/u16:4+efi_rts_wq23:05:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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