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2026-05-21 - 08:04

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 Thu May 21, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95292328307,19sleep10-21swapper/119:06:081
95482319304,5sleep30-21swapper/319:06:223
95552315308,5sleep00-21swapper/019:06:260
95572314307,5sleep20-21swapper/219:06:292
10097993020,301cyclictest9735-21kworker/u16:0+efi_rts_wq23:50:123
10097992980,297cyclictest17760-21kworker/u16:2+efi_rts_wq21:13:593
10095992980,297cyclictest31585-21kworker/u16:3+efi_rts_wq22:00:121
10094992980,297cyclictest2346-21kworker/u16:0+efi_rts_wq22:45:110
10095992970,295cyclictest7586-21kworker/u16:1+efi_rts_wq19:30:111
10097992960,295cyclictest7586-21kworker/u16:1+efi_rts_wq22:05:113
10097992960,295cyclictest17760-21kworker/u16:2+efi_rts_wq20:58:563
10096992950,294cyclictest7586-21kworker/u16:1+efi_rts_wq19:15:002
10094992950,294cyclictest7586-21kworker/u16:1+efi_rts_wq21:25:110
10096992940,293cyclictest7586-21kworker/u16:1+efi_rts_wq19:55:132
10095992930,292cyclictest7260-21kworker/u16:2+efi_rts_wq23:35:111
10097992920,291cyclictest7586-21kworker/u16:1+efi_rts_wq22:40:123
10097992920,291cyclictest7586-21kworker/u16:1+efi_rts_wq22:40:113
10097992920,291cyclictest7586-21kworker/u16:1+efi_rts_wq20:23:503
10095992920,291cyclictest7586-21kworker/u16:1+efi_rts_wq21:10:141
10096992910,290cyclictest7586-21kworker/u16:1+efi_rts_wq20:00:132
10094992910,290cyclictest31585-21kworker/u16:3+efi_rts_wq22:10:120
10097992890,288cyclictest7586-21kworker/u16:1+efi_rts_wq21:24:013
10095992880,287cyclictest9735-21kworker/u16:0+efi_rts_wq00:16:061
10094992880,287cyclictest7586-21kworker/u16:1+efi_rts_wq20:10:120
10095992870,286cyclictest31585-21kworker/u16:3+efi_rts_wq21:39:041
10096992860,285cyclictest7260-21kworker/u16:2+efi_rts_wq22:55:122
10095992860,285cyclictest17760-21kworker/u16:2+efi_rts_wq20:40:121
10094992850,284cyclictest9735-21kworker/u16:0+efi_rts_wq23:40:120
10095992840,283cyclictest31585-21kworker/u16:3+efi_rts_wq22:34:141
10097992830,282cyclictest17760-21kworker/u16:2+efi_rts_wq20:53:553
10096992830,282cyclictest9735-21kworker/u16:0+efi_rts_wq23:46:012
10095992830,282cyclictest9735-21kworker/u16:0+efi_rts_wq23:20:121
10094992830,281cyclictest7260-21kworker/u16:2+efi_rts_wq23:10:130
10095992820,281cyclictest7586-21kworker/u16:1+efi_rts_wq21:03:571
10095992820,281cyclictest31585-21kworker/u16:3+efi_rts_wq21:15:131
10095992820,279cyclictest9735-21kworker/u16:0+efi_rts_wq00:05:121
10097992810,280cyclictest7586-21kworker/u16:1+efi_rts_wq22:30:123
10094992810,280cyclictest2346-21kworker/u16:0+efi_rts_wq22:44:160
10094992810,280cyclictest2346-21kworker/u16:0+efi_rts_wq22:44:150
10096992790,277cyclictest7260-21kworker/u16:2+efi_rts_wq23:05:122
10095992790,276cyclictest31585-21kworker/u16:3+efi_rts_wq21:50:121
10097992770,276cyclictest9735-21kworker/u16:0+efi_rts_wq23:09:213
10094992770,276cyclictest17760-21kworker/u16:2+efi_rts_wq20:50:110
10096992750,274cyclictest7586-21kworker/u16:1+efi_rts_wq22:35:132
10094992750,274cyclictest31585-21kworker/u16:3+efi_rts_wq22:05:120
10097992740,273cyclictest7260-21kworker/u16:2+efi_rts_wq22:50:123
10097992730,272cyclictest17760-21kworker/u16:2+efi_rts_wq20:25:123
10096992730,272cyclictest9735-21kworker/u16:0+efi_rts_wq23:40:122
10096992730,272cyclictest7586-21kworker/u16:1+efi_rts_wq19:53:462
10096992730,272cyclictest7586-21kworker/u16:1+efi_rts_wq19:20:132
10095992730,272cyclictest7586-21kworker/u16:1+efi_rts_wq19:45:111
10094992720,271cyclictest31585-21kworker/u16:3+efi_rts_wq21:55:120
10096992710,270cyclictest9735-21kworker/u16:0+efi_rts_wq00:15:122
10095992710,270cyclictest7586-21kworker/u16:1+efi_rts_wq19:43:431
10094992710,270cyclictest7586-21kworker/u16:1+efi_rts_wq22:30:110
10097992700,269cyclictest7260-21kworker/u16:2+efi_rts_wq23:00:133
10095992700,269cyclictest7586-21kworker/u16:1+efi_rts_wq22:15:121
10095992680,267cyclictest7586-21kworker/u16:1+efi_rts_wq21:05:131
10096992670,266cyclictest9735-21kworker/u16:0+efi_rts_wq00:30:122
10097992640,263cyclictest7586-21kworker/u16:1+efi_rts_wq19:25:123
10096992640,263cyclictest2346-21kworker/u16:0+efi_rts_wq22:45:122
10097992630,262cyclictest7260-21kworker/u16:2+efi_rts_wq23:45:123
10094992630,262cyclictest7586-21kworker/u16:1+efi_rts_wq21:10:140
10095992620,261cyclictest7586-21kworker/u16:1+efi_rts_wq20:30:121
10097992610,260cyclictest7586-21kworker/u16:1+efi_rts_wq22:15:113
10094992610,260cyclictest7586-21kworker/u16:1+efi_rts_wq19:15:110
10094992610,260cyclictest17760-21kworker/u16:2+efi_rts_wq20:35:120
10095992600,259cyclictest9735-21kworker/u16:0+efi_rts_wq23:30:131
10095992600,259cyclictest17760-21kworker/u16:2+efi_rts_wq19:10:081
10096992590,258cyclictest31585-21kworker/u16:3+efi_rts_wq21:15:132
10095992570,256cyclictest8160-21kworker/u16:1+efi_rts_wq00:35:121
10097992550,254cyclictest9735-21kworker/u16:0+efi_rts_wq23:55:133
10094992550,254cyclictest7586-21kworker/u16:1+efi_rts_wq21:19:000
10097992530,252cyclictest17760-21kworker/u16:2+efi_rts_wq20:13:493
10097992520,251cyclictest7586-21kworker/u16:1+efi_rts_wq22:20:123
10094992520,251cyclictest7586-21kworker/u16:1+efi_rts_wq19:50:100
10095992510,250cyclictest31585-21kworker/u16:3+efi_rts_wq21:45:131
10095992500,249cyclictest7586-21kworker/u16:1+efi_rts_wq22:35:121
10094992490,248cyclictest17760-21kworker/u16:2+efi_rts_wq20:25:120
10094992480,247cyclictest17760-21kworker/u16:2+efi_rts_wq20:43:540
10094992480,247cyclictest17760-21kworker/u16:2+efi_rts_wq19:35:120
10097992470,246cyclictest17760-21kworker/u16:2+efi_rts_wq20:35:123
10095992450,244cyclictest9735-21kworker/u16:0+efi_rts_wq00:21:081
10094992440,243cyclictest8160-21kworker/u16:1+efi_rts_wq00:20:120
10097992430,242cyclictest7586-21kworker/u16:1+efi_rts_wq22:49:173
10097992410,240cyclictest8160-21kworker/u16:1+efi_rts_wq00:20:123
10096992400,239cyclictest7586-21kworker/u16:1+efi_rts_wq22:25:142
10097992390,238cyclictest9735-21kworker/u16:0+efi_rts_wq23:25:123
10097992390,236cyclictest31585-21kworker/u16:3+efi_rts_wq21:40:133
10096992380,237cyclictest7586-21kworker/u16:1+efi_rts_wq20:38:522
10095992380,237cyclictest9735-21kworker/u16:0+efi_rts_wq23:56:021
10094992370,236cyclictest17760-21kworker/u16:2+efi_rts_wq20:03:480
10097992360,235cyclictest7586-21kworker/u16:1+efi_rts_wq19:40:133
10096992340,233cyclictest7260-21kworker/u16:2+efi_rts_wq23:14:222
10096992340,233cyclictest17760-21kworker/u16:2+efi_rts_wq20:15:122
10097992320,231cyclictest9735-21kworker/u16:0+efi_rts_wq23:15:153
10094992320,231cyclictest7586-21kworker/u16:1+efi_rts_wq20:05:150
10095992310,230cyclictest7586-21kworker/u16:1+efi_rts_wq22:29:131
10094992290,228cyclictest8160-21kworker/u16:1+efi_rts_wq00:11:060
10097992280,227cyclictest9735-21kworker/u16:0+efi_rts_wq00:36:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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