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2026-07-08 - 07:02

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 Jul 08, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300002337312,23sleep20-21swapper/219:07:022
283842333310,5sleep10-21swapper/119:05:041
299562317310,5sleep00-21swapper/019:06:270
299962316309,5sleep30-21swapper/319:06:593
30498993050,302cyclictest32202-21kworker/u16:3+efi_rts_wq19:15:011
30500993000,299cyclictest12533-21kworker/u16:2+efi_rts_wq19:20:133
30498992980,297cyclictest1573-21kworker/u16:1+efi_rts_wq23:20:001
30500992970,296cyclictest7587-21kworker/u16:0+efi_rts_wq22:40:123
30500992970,296cyclictest1204-21kworker/u16:3+efi_rts_wq22:04:483
30497992960,295cyclictest12941-21kworker/u16:3+efi_rts_wq21:14:380
30498992950,294cyclictest18882-21kworker/u16:2+efi_rts_wq21:30:121
30497992950,294cyclictest5169-21kworker/u16:0+efi_rts_wq00:00:130
30500992920,291cyclictest1573-21kworker/u16:1+efi_rts_wq23:30:093
30500992910,290cyclictest1204-21kworker/u16:3+efi_rts_wq22:15:143
30498992900,289cyclictest5169-21kworker/u16:0+efi_rts_wq23:55:051
30498992890,288cyclictest1573-21kworker/u16:1+efi_rts_wq23:35:131
30497992880,287cyclictest6732-21kworker/u16:1+efi_rts_wq20:05:120
30497992880,287cyclictest24315-21kworker/u16:0+efi_rts_wq19:30:130
30497992880,287cyclictest1573-21kworker/u16:1+efi_rts_wq23:20:110
30498992870,286cyclictest29277-21kworker/u16:1+efi_rts_wq21:45:131
30498992860,285cyclictest15865-21kworker/u16:1+efi_rts_wq22:25:131
30498992860,285cyclictest12941-21kworker/u16:3+efi_rts_wq21:15:141
30500992850,284cyclictest7587-21kworker/u16:0+efi_rts_wq22:45:143
30499992850,284cyclictest5169-21kworker/u16:0+efi_rts_wq00:05:122
30499992840,283cyclictest24315-21kworker/u16:0+efi_rts_wq19:50:122
30498992840,283cyclictest6732-21kworker/u16:1+efi_rts_wq20:20:131
30497992840,281cyclictest5169-21kworker/u16:0+efi_rts_wq23:40:120
30500992830,282cyclictest27071-21kworker/u16:2+efi_rts_wq00:30:133
30500992820,281cyclictest24315-21kworker/u16:0+efi_rts_wq20:44:343
30500992820,281cyclictest18197-21kworker/u16:3+efi_rts_wq23:05:143
30499992810,280cyclictest12941-21kworker/u16:3+efi_rts_wq21:25:142
30498992810,280cyclictest18882-21kworker/u16:2+efi_rts_wq22:24:511
30498992800,279cyclictest8809-21kworker/u16:2+efi_rts_wq20:55:131
30498992800,279cyclictest8809-21kworker/u16:2+efi_rts_wq19:55:131
30498992790,278cyclictest8809-21kworker/u16:2+efi_rts_wq20:15:131
30497992780,277cyclictest6732-21kworker/u16:1+efi_rts_wq21:05:120
30499992760,275cyclictest20894-21kworker/u16:2+efi_rts_wq22:50:132
30497992760,275cyclictest5169-21kworker/u16:0+efi_rts_wq23:30:010
30497992750,274cyclictest15865-21kworker/u16:1+efi_rts_wq22:29:530
30498992740,273cyclictest6732-21kworker/u16:1+efi_rts_wq20:00:111
30500992730,272cyclictest5169-21kworker/u16:0+efi_rts_wq23:40:123
30498992710,270cyclictest24315-21kworker/u16:0+efi_rts_wq19:40:131
30498992710,270cyclictest18882-21kworker/u16:2+efi_rts_wq21:55:131
30498992700,269cyclictest29272-21kworker/u16:0+efi_rts_wq23:00:121
30500992690,268cyclictest18882-21kworker/u16:2+efi_rts_wq22:05:103
30497992690,268cyclictest24315-21kworker/u16:0+efi_rts_wq20:04:270
30497992690,268cyclictest1204-21kworker/u16:3+efi_rts_wq22:15:140
30500992670,266cyclictest6732-21kworker/u16:1+efi_rts_wq21:10:133
30497992650,264cyclictest24315-21kworker/u16:0+efi_rts_wq21:00:110
30500992640,263cyclictest11953-21kworker/u16:3+efi_rts_wq23:45:133
30498992640,263cyclictest6732-21kworker/u16:1+efi_rts_wq21:05:111
30497992640,263cyclictest32202-21kworker/u16:3+efi_rts_wq19:14:170
30498992620,261cyclictest8809-21kworker/u16:2+efi_rts_wq20:50:121
30498992620,261cyclictest18197-21kworker/u16:3+efi_rts_wq23:10:131
30497992590,258cyclictest18882-21kworker/u16:2+efi_rts_wq21:19:400
30498992570,256cyclictest8809-21kworker/u16:2+efi_rts_wq20:29:311
30498992560,255cyclictest11953-21kworker/u16:3+efi_rts_wq23:40:041
30497992560,255cyclictest24315-21kworker/u16:0+efi_rts_wq20:25:110
30500992540,253cyclictest18197-21kworker/u16:3+efi_rts_wq22:35:123
30498992540,253cyclictest8809-21kworker/u16:2+efi_rts_wq20:49:351
30497992540,253cyclictest29277-21kworker/u16:1+efi_rts_wq21:49:450
30500992530,252cyclictest5169-21kworker/u16:0+efi_rts_wq00:20:103
30497992500,249cyclictest5169-21kworker/u16:0+efi_rts_wq00:15:130
30500992490,248cyclictest28103-21kworker/u16:1+efi_rts_wq19:10:113
30499992450,244cyclictest8809-21kworker/u16:2+efi_rts_wq20:35:122
30499992430,242cyclictest5169-21kworker/u16:0+efi_rts_wq23:55:122
30498992420,241cyclictest12941-21kworker/u16:3+efi_rts_wq21:29:421
30499992410,240cyclictest20894-21kworker/u16:2+efi_rts_wq22:59:562
30497992410,240cyclictest5169-21kworker/u16:0+efi_rts_wq23:50:060
30500992400,239cyclictest29277-21kworker/u16:1+efi_rts_wq21:44:453
30500992390,238cyclictest1573-21kworker/u16:1+efi_rts_wq23:15:143
30497992390,238cyclictest20894-21kworker/u16:2+efi_rts_wq23:04:570
30497992390,238cyclictest20894-21kworker/u16:2+efi_rts_wq22:49:550
30500992370,236cyclictest8809-21kworker/u16:2+efi_rts_wq20:19:303
30498992370,236cyclictest8809-21kworker/u16:2+efi_rts_wq20:30:141
30497992370,236cyclictest1573-21kworker/u16:1+efi_rts_wq23:25:000
30500992360,235cyclictest24315-21kworker/u16:0+efi_rts_wq21:00:123
30497992350,234cyclictest18882-21kworker/u16:2+efi_rts_wq22:05:110
30497992350,234cyclictest18882-21kworker/u16:2+efi_rts_wq21:20:140
30500992340,233cyclictest6732-21kworker/u16:1+efi_rts_wq19:35:133
30500992340,233cyclictest5169-21kworker/u16:0+efi_rts_wq23:25:133
30498992330,232cyclictest1204-21kworker/u16:3+efi_rts_wq22:15:141
30497992320,231cyclictest8809-21kworker/u16:2+efi_rts_wq19:55:140
30497992320,231cyclictest32202-21kworker/u16:3+efi_rts_wq19:15:010
30498992310,230cyclictest6732-21kworker/u16:1+efi_rts_wq21:10:121
30497992310,230cyclictest8809-21kworker/u16:2+efi_rts_wq20:50:110
30498992300,229cyclictest8809-21kworker/u16:2+efi_rts_wq20:40:131
30498992300,229cyclictest5169-21kworker/u16:0+efi_rts_wq23:50:131
30497992280,227cyclictest24315-21kworker/u16:0+efi_rts_wq20:59:360
30498992260,225cyclictest5169-21kworker/u16:0+efi_rts_wq00:15:121
30497992250,224cyclictest24315-21kworker/u16:0+efi_rts_wq20:10:130
30497992220,221cyclictest32202-21kworker/u16:3+efi_rts_wq19:25:120
30497992210,220cyclictest1573-21kworker/u16:1+efi_rts_wq23:15:140
30500992170,216cyclictest29277-21kworker/u16:1+efi_rts_wq21:50:133
30497992170,216cyclictest27071-21kworker/u16:2+efi_rts_wq00:35:130
30498992160,215cyclictest18197-21kworker/u16:3+efi_rts_wq22:39:541
30498992150,214cyclictest15865-21kworker/u16:1+efi_rts_wq22:30:111
30500992120,211cyclictest24315-21kworker/u16:0+efi_rts_wq19:45:143
30500992120,211cyclictest15865-21kworker/u16:1+efi_rts_wq22:30:133
30500992110,210cyclictest32202-21kworker/u16:3+efi_rts_wq19:25:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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