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2026-06-10 - 13:29

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 Jun 10, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32982322316,4sleep10-21swapper/119:08:391
32322316309,5sleep20-21swapper/219:07:492
30962316308,5sleep30-21swapper/319:06:063
32702314307,5sleep00-21swapper/019:08:180
3669992980,297cyclictest7880-21kworker/u16:1+efi_rts_wq22:10:133
3667992980,297cyclictest26987-21kworker/u16:0+efi_rts_wq19:55:111
3668992970,296cyclictest15678-21kworker/u16:3+efi_rts_wq23:55:042
3667992960,295cyclictest7880-21kworker/u16:1+efi_rts_wq22:45:131
3667992960,295cyclictest7880-21kworker/u16:1+efi_rts_wq22:45:131
3667992960,295cyclictest26987-21kworker/u16:0+efi_rts_wq22:44:521
3667992960,295cyclictest26987-21kworker/u16:0+efi_rts_wq22:44:511
3668992950,294cyclictest26987-21kworker/u16:0+efi_rts_wq21:10:132
3668992950,294cyclictest23349-21kworker/u16:2+efi_rts_wq20:54:312
3669992940,293cyclictest7461-21kworker/u16:2+efi_rts_wq23:05:133
3668992940,293cyclictest23349-21kworker/u16:2+efi_rts_wq21:55:142
3668992940,293cyclictest23349-21kworker/u16:2+efi_rts_wq20:44:292
3667992940,293cyclictest26987-21kworker/u16:0+efi_rts_wq20:30:141
3666992930,292cyclictest26987-21kworker/u16:0+efi_rts_wq21:50:100
3666992920,291cyclictest26987-21kworker/u16:0+efi_rts_wq22:50:120
3667992910,290cyclictest7461-21kworker/u16:2+efi_rts_wq23:19:581
3667992900,289cyclictest23349-21kworker/u16:2+efi_rts_wq21:25:131
3666992890,288cyclictest26987-21kworker/u16:0+efi_rts_wq20:05:110
3667992880,287cyclictest26987-21kworker/u16:0+efi_rts_wq21:44:411
3668992870,286cyclictest10294-21kworker/u16:1+efi_rts_wq23:15:142
3666992870,286cyclictest23349-21kworker/u16:2+efi_rts_wq20:14:230
3669992860,285cyclictest19469-21kworker/u16:0+efi_rts_wq00:10:123
3667992860,285cyclictest19469-21kworker/u16:0+efi_rts_wq23:35:121
3669992840,283cyclictest7461-21kworker/u16:2+efi_rts_wq23:25:133
3669992840,283cyclictest26987-21kworker/u16:0+efi_rts_wq20:15:103
3668992840,283cyclictest23349-21kworker/u16:2+efi_rts_wq19:25:112
3668992820,281cyclictest23349-21kworker/u16:2+efi_rts_wq19:20:142
3667992820,281cyclictest15678-21kworker/u16:3+efi_rts_wq23:40:131
3669992800,279cyclictest15678-21kworker/u16:3+efi_rts_wq00:05:163
3667992770,276cyclictest15678-21kworker/u16:3+efi_rts_wq23:50:131
3668992760,275cyclictest15678-21kworker/u16:3+efi_rts_wq00:10:072
3666992760,275cyclictest19469-21kworker/u16:0+efi_rts_wq00:10:130
3668992750,274cyclictest15678-21kworker/u16:3+efi_rts_wq00:15:132
3667992750,274cyclictest19469-21kworker/u16:0+efi_rts_wq00:05:051
3667992740,273cyclictest23349-21kworker/u16:2+efi_rts_wq20:00:131
3666992740,273cyclictest19469-21kworker/u16:0+efi_rts_wq00:35:110
3666992730,272cyclictest7880-21kworker/u16:1+efi_rts_wq22:25:120
3668992690,268cyclictest26987-21kworker/u16:0+efi_rts_wq20:24:252
3668992690,268cyclictest23349-21kworker/u16:2+efi_rts_wq21:35:132
3666992690,268cyclictest23349-21kworker/u16:2+efi_rts_wq19:40:130
3668992680,267cyclictest15678-21kworker/u16:3+efi_rts_wq23:40:132
3669992670,266cyclictest19469-21kworker/u16:0+efi_rts_wq00:25:093
3669992670,266cyclictest15678-21kworker/u16:3+efi_rts_wq23:55:133
3667992670,266cyclictest26987-21kworker/u16:0+efi_rts_wq22:30:121
3668992650,263cyclictest7880-21kworker/u16:1+efi_rts_wq22:45:132
3668992650,263cyclictest7880-21kworker/u16:1+efi_rts_wq22:45:122
3669992640,263cyclictest19469-21kworker/u16:0+efi_rts_wq00:30:133
3669992630,262cyclictest26987-21kworker/u16:0+efi_rts_wq20:40:133
3666992630,262cyclictest2370-21kworker/u16:3+efi_rts_wq22:55:130
3669992620,260cyclictest7880-21kworker/u16:1+efi_rts_wq22:35:123
3667992620,261cyclictest26987-21kworker/u16:0+efi_rts_wq23:00:121
3666992620,261cyclictest23349-21kworker/u16:2+efi_rts_wq21:45:130
3669992600,259cyclictest26987-21kworker/u16:0+efi_rts_wq22:40:133
3669992600,259cyclictest26987-21kworker/u16:0+efi_rts_wq22:40:123
3668992590,258cyclictest23349-21kworker/u16:2+efi_rts_wq21:15:162
3667992590,258cyclictest23349-21kworker/u16:2+efi_rts_wq20:20:131
3669992570,256cyclictest15678-21kworker/u16:3+efi_rts_wq23:40:023
3666992570,256cyclictest23349-21kworker/u16:2+efi_rts_wq21:39:420
3666992570,256cyclictest19469-21kworker/u16:0+efi_rts_wq00:20:110
3669992560,255cyclictest26987-21kworker/u16:0+efi_rts_wq21:40:133
3668992560,255cyclictest23349-21kworker/u16:2+efi_rts_wq21:30:132
3667992560,255cyclictest23349-21kworker/u16:2+efi_rts_wq19:10:111
3669992550,254cyclictest2370-21kworker/u16:3+efi_rts_wq22:55:143
3669992550,253cyclictest26987-21kworker/u16:0+efi_rts_wq23:04:553
3668992550,254cyclictest26987-21kworker/u16:0+efi_rts_wq20:05:112
3668992540,253cyclictest26987-21kworker/u16:0+efi_rts_wq23:09:572
3668992530,252cyclictest7880-21kworker/u16:1+efi_rts_wq22:29:502
3667992530,252cyclictest23349-21kworker/u16:2+efi_rts_wq20:10:131
3666992520,251cyclictest23349-21kworker/u16:2+efi_rts_wq22:05:140
3668992500,249cyclictest26987-21kworker/u16:0+efi_rts_wq20:15:092
3666992500,249cyclictest26987-21kworker/u16:0+efi_rts_wq21:00:120
3669992470,246cyclictest23349-21kworker/u16:2+efi_rts_wq19:50:123
3667992470,246cyclictest15678-21kworker/u16:3+efi_rts_wq23:55:131
3666992460,245cyclictest26987-21kworker/u16:0+efi_rts_wq20:50:120
3669992450,244cyclictest7461-21kworker/u16:2+efi_rts_wq23:10:123
3667992440,243cyclictest26987-21kworker/u16:0+efi_rts_wq22:19:481
3667992420,241cyclictest23349-21kworker/u16:2+efi_rts_wq19:54:181
3666992410,240cyclictest26987-21kworker/u16:0+efi_rts_wq22:00:110
3666992380,237cyclictest23349-21kworker/u16:2+efi_rts_wq21:24:360
3666992370,236cyclictest26987-21kworker/u16:0+efi_rts_wq19:55:120
3669992360,235cyclictest23349-21kworker/u16:2+efi_rts_wq20:20:133
3669992360,235cyclictest19469-21kworker/u16:0+efi_rts_wq00:35:103
3666992350,232cyclictest7880-21kworker/u16:1+efi_rts_wq22:20:130
3668992340,232cyclictest19469-21kworker/u16:0+efi_rts_wq00:00:062
3669992320,231cyclictest26987-21kworker/u16:0+efi_rts_wq20:35:133
3669992300,228cyclictest26987-21kworker/u16:0+efi_rts_wq22:50:113
3667992300,229cyclictest26987-21kworker/u16:0+efi_rts_wq19:35:141
3666992300,229cyclictest26987-21kworker/u16:0+efi_rts_wq20:34:270
3666992300,229cyclictest26987-21kworker/u16:0+efi_rts_wq19:15:000
3667992290,228cyclictest23349-21kworker/u16:2+efi_rts_wq21:45:131
3668992270,226cyclictest26987-21kworker/u16:0+efi_rts_wq19:30:132
3666992260,225cyclictest15678-21kworker/u16:3+efi_rts_wq23:45:120
3668992250,224cyclictest26987-21kworker/u16:0+efi_rts_wq22:15:122
3666992250,224cyclictest23349-21kworker/u16:2+efi_rts_wq20:55:130
3666992230,222cyclictest26987-21kworker/u16:0+efi_rts_wq20:39:280
3669992220,221cyclictest19469-21kworker/u16:0+efi_rts_wq00:00:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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