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2025-05-13 - 11:49

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 May 13, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149882337303,31sleep10-21swapper/119:05:571
149792315309,4sleep20-21swapper/219:05:502
152572314306,5sleep30-21swapper/319:09:273
152392314307,5sleep00-21swapper/019:09:110
15567993100,309cyclictest14099-21kworker/u16:1+efi_rts_wq20:30:162
15566993090,308cyclictest25021-21kworker/u16:2+efi_rts_wq23:05:151
15568993070,306cyclictest25021-21kworker/u16:2+efi_rts_wq21:50:123
15565993070,306cyclictest25021-21kworker/u16:2+efi_rts_wq00:30:150
15567993050,304cyclictest11857-21kworker/u16:0+efi_rts_wq00:10:162
15566993040,303cyclictest14099-21kworker/u16:1+efi_rts_wq22:35:141
15568993020,301cyclictest11857-21kworker/u16:0+efi_rts_wq23:25:153
15566993010,300cyclictest25021-21kworker/u16:2+efi_rts_wq21:50:111
15567993000,299cyclictest25021-21kworker/u16:2+efi_rts_wq23:05:152
15565993000,299cyclictest14099-21kworker/u16:1+efi_rts_wq21:25:140
15565993000,299cyclictest14099-21kworker/u16:1+efi_rts_wq20:50:150
15568992980,297cyclictest14099-21kworker/u16:1+efi_rts_wq21:35:153
15567992980,297cyclictest11857-21kworker/u16:0+efi_rts_wq23:45:132
15566992980,296cyclictest11857-21kworker/u16:0+efi_rts_wq23:30:131
15568992970,296cyclictest25021-21kworker/u16:2+efi_rts_wq00:20:143
15565992970,296cyclictest14099-21kworker/u16:1+efi_rts_wq19:10:140
15566992960,295cyclictest25021-21kworker/u16:2+efi_rts_wq21:00:131
15565992960,294cyclictest11857-21kworker/u16:0+efi_rts_wq22:55:140
15565992950,294cyclictest25021-21kworker/u16:2+efi_rts_wq21:15:160
15568992940,293cyclictest25021-21kworker/u16:2+efi_rts_wq23:10:163
15567992940,293cyclictest25021-21kworker/u16:2+efi_rts_wq19:55:122
15567992940,293cyclictest25021-21kworker/u16:2+efi_rts_wq19:20:162
15566992940,293cyclictest14099-21kworker/u16:1+efi_rts_wq20:15:101
15565992940,293cyclictest25021-21kworker/u16:2+efi_rts_wq00:15:150
15566992930,292cyclictest11857-21kworker/u16:0+efi_rts_wq00:35:151
15565992930,292cyclictest14099-21kworker/u16:1+efi_rts_wq19:15:150
15566992920,291cyclictest25021-21kworker/u16:2+efi_rts_wq00:05:151
15567992900,289cyclictest11857-21kworker/u16:0+efi_rts_wq23:30:142
15566992870,286cyclictest14099-21kworker/u16:1+efi_rts_wq20:00:151
15567992850,284cyclictest25021-21kworker/u16:2+efi_rts_wq23:40:142
15567992850,284cyclictest25021-21kworker/u16:2+efi_rts_wq20:05:132
15567992820,281cyclictest14099-21kworker/u16:1+efi_rts_wq19:50:172
15567992810,280cyclictest25021-21kworker/u16:2+efi_rts_wq22:25:152
15566992790,278cyclictest25021-21kworker/u16:2+efi_rts_wq22:15:141
15568992780,277cyclictest14099-21kworker/u16:1+efi_rts_wq21:20:143
15566992780,277cyclictest25021-21kworker/u16:2+efi_rts_wq20:05:131
15565992780,277cyclictest14099-21kworker/u16:1+efi_rts_wq21:40:130
15568992770,276cyclictest25021-21kworker/u16:2+efi_rts_wq23:35:163
15568992750,274cyclictest11857-21kworker/u16:0+efi_rts_wq23:50:143
15567992740,273cyclictest25021-21kworker/u16:2+efi_rts_wq23:20:162
15568992720,271cyclictest14099-21kworker/u16:1+efi_rts_wq20:40:153
15565992710,270cyclictest25021-21kworker/u16:2+efi_rts_wq21:10:130
15568992700,269cyclictest11857-21kworker/u16:0+efi_rts_wq23:55:133
15567992700,269cyclictest11857-21kworker/u16:0+efi_rts_wq22:50:142
15565992690,268cyclictest25021-21kworker/u16:2+efi_rts_wq19:25:120
15568992680,267cyclictest25021-21kworker/u16:2+efi_rts_wq23:15:163
15566992680,267cyclictest14099-21kworker/u16:1+efi_rts_wq20:35:151
15567992670,266cyclictest25021-21kworker/u16:2+efi_rts_wq00:25:162
15567992650,264cyclictest14099-21kworker/u16:1+efi_rts_wq20:35:162
15567992630,262cyclictest25021-21kworker/u16:2+efi_rts_wq20:55:112
15566992600,259cyclictest25021-21kworker/u16:2+efi_rts_wq23:10:161
15567992580,257cyclictest14099-21kworker/u16:1+efi_rts_wq22:35:152
15566992580,257cyclictest25021-21kworker/u16:2+efi_rts_wq21:30:131
15565992580,257cyclictest11857-21kworker/u16:0+efi_rts_wq00:35:150
15566992570,256cyclictest14099-21kworker/u16:1+efi_rts_wq21:05:151
15568992550,254cyclictest14099-21kworker/u16:1+efi_rts_wq22:00:123
15566992540,253cyclictest14099-21kworker/u16:1+efi_rts_wq22:05:151
15566992540,253cyclictest14099-21kworker/u16:1+efi_rts_wq22:05:141
15567992510,250cyclictest14099-21kworker/u16:1+efi_rts_wq22:10:162
15566992480,247cyclictest11857-21kworker/u16:0+efi_rts_wq23:45:141
15568992460,245cyclictest25021-21kworker/u16:2+efi_rts_wq20:45:153
15567992390,238cyclictest14099-21kworker/u16:1+efi_rts_wq22:05:152
15567992390,238cyclictest14099-21kworker/u16:1+efi_rts_wq22:05:142
15565992380,237cyclictest11857-21kworker/u16:0+efi_rts_wq00:00:140
15568992360,235cyclictest25021-21kworker/u16:2+efi_rts_wq19:20:163
15565992360,234cyclictest14099-21kworker/u16:1+efi_rts_wq22:30:150
15566992340,233cyclictest14099-21kworker/u16:1+efi_rts_wq22:30:151
15565992340,233cyclictest14099-21kworker/u16:1+efi_rts_wq22:00:120
15568992320,231cyclictest14099-21kworker/u16:1+efi_rts_wq19:30:133
15568992300,228cyclictest14099-21kworker/u16:1+efi_rts_wq22:40:153
15567992290,228cyclictest11857-21kworker/u16:0+efi_rts_wq23:55:142
15566992280,227cyclictest25021-21kworker/u16:2+efi_rts_wq19:25:121
15565992270,226cyclictest14099-21kworker/u16:1+efi_rts_wq22:20:140
15568992260,225cyclictest14099-21kworker/u16:1+efi_rts_wq22:35:143
15567992240,223cyclictest25021-21kworker/u16:2+efi_rts_wq23:15:162
15566992190,218cyclictest25021-21kworker/u16:2+efi_rts_wq19:45:131
15565992160,215cyclictest25021-21kworker/u16:2+efi_rts_wq19:35:130
15565992150,214cyclictest11857-21kworker/u16:0+efi_rts_wq23:50:130
15567992140,213cyclictest14099-21kworker/u16:1+efi_rts_wq21:35:152
15566992140,213cyclictest14099-21kworker/u16:1+efi_rts_wq19:40:141
15567992120,211cyclictest14099-21kworker/u16:1+efi_rts_wq21:55:162
15568992100,209cyclictest14099-21kworker/u16:1+efi_rts_wq19:15:013
15568992070,206cyclictest25021-21kworker/u16:2+efi_rts_wq23:00:183
15567992070,206cyclictest25021-21kworker/u16:2+efi_rts_wq21:15:152
15567992040,203cyclictest25021-21kworker/u16:2+efi_rts_wq20:20:152
15567992030,202cyclictest14099-21kworker/u16:1+efi_rts_wq21:45:152
15566992030,202cyclictest14099-21kworker/u16:1+efi_rts_wq20:10:171
15565991980,197cyclictest11857-21kworker/u16:0+efi_rts_wq22:50:130
15566991960,195cyclictest14099-21kworker/u16:1+efi_rts_wq21:20:131
15567991950,194cyclictest25021-21kworker/u16:2+efi_rts_wq00:20:142
15565991940,193cyclictest14099-21kworker/u16:1+efi_rts_wq20:40:140
15565991920,191cyclictest14099-21kworker/u16:1+efi_rts_wq20:30:150
15567991890,188cyclictest25021-21kworker/u16:2+efi_rts_wq19:35:142
15565991880,187cyclictest25021-21kworker/u16:2+efi_rts_wq23:40:130
15568991830,182cyclictest14099-21kworker/u16:1+efi_rts_wq21:05:143
15565991830,182cyclictest14099-21kworker/u16:1+efi_rts_wq20:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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