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2026-05-23 - 13:46

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 Sat May 23, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232192325319,4sleep20-21swapper/219:09:362
230562320305,5sleep10-21swapper/119:07:311
229522314307,5sleep00-21swapper/019:06:090
229382314308,4sleep30-21swapper/319:06:003
23515993020,301cyclictest17727-21kworker/u16:1+efi_rts_wq19:50:122
23515993000,299cyclictest9630-21kworker/u16:0+efi_rts_wq19:45:112
23514993000,299cyclictest16278-21kworker/u16:3+efi_rts_wq21:45:141
23513992960,295cyclictest11877-21kworker/u16:1+efi_rts_wq23:55:110
23516992950,294cyclictest11877-21kworker/u16:1+efi_rts_wq23:55:113
23515992950,294cyclictest11877-21kworker/u16:1+efi_rts_wq00:00:132
23514992950,294cyclictest16278-21kworker/u16:3+efi_rts_wq21:20:131
23513992950,294cyclictest17727-21kworker/u16:1+efi_rts_wq19:35:100
23513992950,294cyclictest16278-21kworker/u16:3+efi_rts_wq22:19:360
23513992950,294cyclictest11877-21kworker/u16:1+efi_rts_wq23:00:120
23515992940,293cyclictest17727-21kworker/u16:1+efi_rts_wq21:40:102
23516992930,292cyclictest16278-21kworker/u16:3+efi_rts_wq22:34:393
23516992920,291cyclictest24710-21kworker/u16:2+efi_rts_wq21:50:123
23515992920,291cyclictest24710-21kworker/u16:2+efi_rts_wq23:40:122
23515992920,291cyclictest11877-21kworker/u16:1+efi_rts_wq23:00:122
23515992920,290cyclictest11877-21kworker/u16:1+efi_rts_wq22:50:112
23516992910,290cyclictest11877-21kworker/u16:1+efi_rts_wq22:50:123
23515992890,288cyclictest24710-21kworker/u16:2+efi_rts_wq22:59:442
23514992890,288cyclictest24710-21kworker/u16:2+efi_rts_wq00:15:121
23514992880,287cyclictest11877-21kworker/u16:1+efi_rts_wq00:05:131
23514992880,287cyclictest11877-21kworker/u16:1+efi_rts_wq00:00:131
23516992870,286cyclictest24710-21kworker/u16:2+efi_rts_wq22:00:133
23516992860,285cyclictest24710-21kworker/u16:2+efi_rts_wq23:25:113
23516992860,285cyclictest11877-21kworker/u16:1+efi_rts_wq23:15:113
23515992860,285cyclictest9630-21kworker/u16:0+efi_rts_wq19:15:122
23513992860,285cyclictest16278-21kworker/u16:3+efi_rts_wq21:35:120
23513992840,283cyclictest17727-21kworker/u16:1+efi_rts_wq20:10:120
23516992830,282cyclictest11877-21kworker/u16:1+efi_rts_wq23:46:113
23513992830,282cyclictest24710-21kworker/u16:2+efi_rts_wq23:10:120
23516992820,281cyclictest16278-21kworker/u16:3+efi_rts_wq21:00:133
23513992810,280cyclictest17727-21kworker/u16:1+efi_rts_wq19:10:120
23515992800,278cyclictest17727-21kworker/u16:1+efi_rts_wq20:40:122
23515992780,277cyclictest17727-21kworker/u16:1+efi_rts_wq20:45:122
23513992780,277cyclictest24710-21kworker/u16:2+efi_rts_wq23:29:480
23514992750,274cyclictest17727-21kworker/u16:1+efi_rts_wq21:14:261
23514992740,272cyclictest11877-21kworker/u16:1+efi_rts_wq22:54:431
23513992730,272cyclictest17727-21kworker/u16:1+efi_rts_wq19:15:010
23516992720,271cyclictest17727-21kworker/u16:1+efi_rts_wq20:10:123
23513992720,271cyclictest16278-21kworker/u16:3+efi_rts_wq21:24:290
23516992710,270cyclictest17727-21kworker/u16:1+efi_rts_wq19:25:123
23513992710,270cyclictest9630-21kworker/u16:0+efi_rts_wq20:44:200
23514992700,268cyclictest24710-21kworker/u16:2+efi_rts_wq23:14:461
23514992690,268cyclictest24710-21kworker/u16:2+efi_rts_wq23:40:121
23514992690,268cyclictest24710-21kworker/u16:2+efi_rts_wq00:35:111
23515992680,266cyclictest16278-21kworker/u16:3+efi_rts_wq20:50:132
23513992680,267cyclictest9630-21kworker/u16:0+efi_rts_wq20:35:100
23514992670,266cyclictest17727-21kworker/u16:1+efi_rts_wq21:30:131
23516992660,265cyclictest17727-21kworker/u16:1+efi_rts_wq19:15:013
23515992660,265cyclictest24710-21kworker/u16:2+efi_rts_wq21:55:122
23514992660,265cyclictest16278-21kworker/u16:3+efi_rts_wq21:05:121
23513992640,263cyclictest16278-21kworker/u16:3+efi_rts_wq20:55:110
23516992630,262cyclictest17727-21kworker/u16:1+efi_rts_wq20:15:123
23515992630,262cyclictest11877-21kworker/u16:1+efi_rts_wq23:30:122
23513992630,262cyclictest17727-21kworker/u16:1+efi_rts_wq21:25:110
23514992620,261cyclictest16278-21kworker/u16:3+efi_rts_wq21:44:331
23513992600,259cyclictest17727-21kworker/u16:1+efi_rts_wq20:00:120
23516992580,257cyclictest24710-21kworker/u16:2+efi_rts_wq00:26:183
23515992580,257cyclictest24710-21kworker/u16:2+efi_rts_wq23:35:102
23516992570,256cyclictest9630-21kworker/u16:0+efi_rts_wq20:05:133
23514992570,256cyclictest24710-21kworker/u16:2+efi_rts_wq22:15:121
23513992570,256cyclictest17727-21kworker/u16:1+efi_rts_wq20:15:120
23515992560,255cyclictest24710-21kworker/u16:2+efi_rts_wq22:35:122
23515992560,255cyclictest16278-21kworker/u16:3+efi_rts_wq22:05:122
23513992560,255cyclictest11877-21kworker/u16:1+efi_rts_wq23:09:460
23515992550,254cyclictest24710-21kworker/u16:2+efi_rts_wq22:15:122
23515992540,253cyclictest24710-21kworker/u16:2+efi_rts_wq22:29:382
23514992540,253cyclictest16278-21kworker/u16:3+efi_rts_wq22:30:131
23515992520,251cyclictest11877-21kworker/u16:1+efi_rts_wq00:10:122
23515992500,249cyclictest17727-21kworker/u16:1+efi_rts_wq21:25:112
23514992490,248cyclictest24710-21kworker/u16:2+efi_rts_wq23:56:131
23516992460,245cyclictest17727-21kworker/u16:1+efi_rts_wq21:10:113
23514992460,245cyclictest11877-21kworker/u16:1+efi_rts_wq23:34:501
23513992460,245cyclictest17727-21kworker/u16:1+efi_rts_wq19:34:070
23516992450,244cyclictest24710-21kworker/u16:2+efi_rts_wq00:35:113
23514992450,244cyclictest19415-21kworker/u16:0+efi_rts_wq21:39:321
23513992450,244cyclictest24710-21kworker/u16:2+efi_rts_wq22:35:120
23516992430,241cyclictest9630-21kworker/u16:0+efi_rts_wq20:35:103
23515992430,242cyclictest17727-21kworker/u16:1+efi_rts_wq20:25:132
23516992400,239cyclictest24710-21kworker/u16:2+efi_rts_wq22:15:133
23514992400,239cyclictest9630-21kworker/u16:0+efi_rts_wq19:20:131
23516992390,238cyclictest24710-21kworker/u16:2+efi_rts_wq22:14:363
23516992390,238cyclictest11877-21kworker/u16:1+efi_rts_wq23:20:123
23516992390,237cyclictest24710-21kworker/u16:2+efi_rts_wq22:44:413
23513992390,238cyclictest11877-21kworker/u16:1+efi_rts_wq23:20:130
23515992360,235cyclictest9630-21kworker/u16:0+efi_rts_wq20:39:202
23514992330,232cyclictest11877-21kworker/u16:1+efi_rts_wq23:15:111
23516992320,231cyclictest16278-21kworker/u16:3+efi_rts_wq21:45:153
23514992320,231cyclictest17727-21kworker/u16:1+efi_rts_wq19:40:131
23514992320,231cyclictest17727-21kworker/u16:1+efi_rts_wq19:40:131
23514992320,231cyclictest11877-21kworker/u16:1+efi_rts_wq22:45:121
23513992310,230cyclictest17727-21kworker/u16:1+efi_rts_wq19:24:060
23514992300,229cyclictest24710-21kworker/u16:2+efi_rts_wq23:50:141
23514992290,228cyclictest17727-21kworker/u16:1+efi_rts_wq19:29:071
23516992280,227cyclictest24710-21kworker/u16:2+efi_rts_wq00:11:153
23515992270,226cyclictest9630-21kworker/u16:0+efi_rts_wq19:59:122
23516992260,225cyclictest24710-21kworker/u16:2+efi_rts_wq23:40:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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