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2026-06-10 - 23:25

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 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253292320307,4sleep10-21swapper/107:09:171
253862318311,4sleep00-21swapper/007:10:000
235452315307,5sleep30-21swapper/307:05:063
235492313305,5sleep20-21swapper/207:05:092
25650993080,305cyclictest32031-21kworker/u16:1+efi_rts_wq11:55:141
25652993000,299cyclictest30777-21kworker/u16:2+efi_rts_wq07:41:383
25650993000,299cyclictest17055-21kworker/u16:2+efi_rts_wq10:40:121
25649992990,298cyclictest5777-21kworker/u16:3+efi_rts_wq09:50:120
25652992980,297cyclictest4020-21kworker/u16:1+efi_rts_wq07:11:323
25651992980,295cyclictest5777-21kworker/u16:3+efi_rts_wq09:00:122
25650992980,297cyclictest30777-21kworker/u16:2+efi_rts_wq07:20:121
25652992970,296cyclictest4020-21kworker/u16:1+efi_rts_wq07:15:113
25650992961,294cyclictest32031-21kworker/u16:1+efi_rts_wq12:00:121
25649992960,294cyclictest32031-21kworker/u16:1+efi_rts_wq12:00:120
25651992950,294cyclictest2154-21kworker/u16:3+efi_rts_wq11:35:122
25650992950,294cyclictest4020-21kworker/u16:1+efi_rts_wq08:15:141
25649992950,294cyclictest19643-21kworker/u16:0+efi_rts_wq11:10:120
25649992940,293cyclictest4020-21kworker/u16:1+efi_rts_wq07:16:330
25652992920,291cyclictest2154-21kworker/u16:3+efi_rts_wq12:25:103
25651992920,291cyclictest5777-21kworker/u16:3+efi_rts_wq08:30:112
25649992900,289cyclictest5777-21kworker/u16:3+efi_rts_wq08:30:110
25650992880,287cyclictest32031-21kworker/u16:1+efi_rts_wq12:32:341
25649992880,287cyclictest30777-21kworker/u16:2+efi_rts_wq07:30:110
25649992880,287cyclictest19643-21kworker/u16:0+efi_rts_wq10:50:120
25650992871,285cyclictest17055-21kworker/u16:2+efi_rts_wq10:47:141
25650992870,286cyclictest5777-21kworker/u16:3+efi_rts_wq07:50:121
25652992860,285cyclictest5777-21kworker/u16:3+efi_rts_wq09:37:023
25652992860,285cyclictest19643-21kworker/u16:0+efi_rts_wq11:10:123
25652992840,283cyclictest32031-21kworker/u16:1+efi_rts_wq12:20:113
25651992840,283cyclictest4020-21kworker/u16:1+efi_rts_wq10:15:102
25650992840,281cyclictest4020-21kworker/u16:1+efi_rts_wq10:30:121
25652992830,282cyclictest5777-21kworker/u16:3+efi_rts_wq09:30:113
25651992810,280cyclictest17055-21kworker/u16:2+efi_rts_wq10:45:132
25651992800,279cyclictest4020-21kworker/u16:1+efi_rts_wq09:20:122
25649992800,279cyclictest4020-21kworker/u16:1+efi_rts_wq09:42:030
25651992790,278cyclictest32031-21kworker/u16:1+efi_rts_wq12:35:132
25650992790,278cyclictest5777-21kworker/u16:3+efi_rts_wq08:00:121
25652992770,276cyclictest32031-21kworker/u16:1+efi_rts_wq12:37:353
25652992760,275cyclictest5777-21kworker/u16:3+efi_rts_wq10:35:133
25651992760,275cyclictest4020-21kworker/u16:1+efi_rts_wq09:25:112
25651992760,275cyclictest4020-21kworker/u16:1+efi_rts_wq09:25:112
25650992730,272cyclictest2154-21kworker/u16:3+efi_rts_wq11:30:121
25652992720,271cyclictest5777-21kworker/u16:3+efi_rts_wq10:20:113
25650992720,271cyclictest5777-21kworker/u16:3+efi_rts_wq10:20:111
25649992720,271cyclictest4020-21kworker/u16:1+efi_rts_wq08:50:100
25649992720,271cyclictest2154-21kworker/u16:3+efi_rts_wq12:05:140
25651992710,270cyclictest4020-21kworker/u16:1+efi_rts_wq07:35:122
25649992690,268cyclictest19643-21kworker/u16:0+efi_rts_wq11:00:120
25652992680,267cyclictest2154-21kworker/u16:3+efi_rts_wq11:25:143
25652992660,265cyclictest5777-21kworker/u16:3+efi_rts_wq08:40:113
25651992660,265cyclictest2154-21kworker/u16:3+efi_rts_wq12:15:112
25649992650,264cyclictest5777-21kworker/u16:3+efi_rts_wq10:12:070
25651992620,261cyclictest30777-21kworker/u16:2+efi_rts_wq07:45:142
25650992620,261cyclictest32031-21kworker/u16:1+efi_rts_wq12:12:291
25652992610,260cyclictest4020-21kworker/u16:1+efi_rts_wq09:10:113
25652992610,260cyclictest19643-21kworker/u16:0+efi_rts_wq10:55:123
25650992610,260cyclictest5777-21kworker/u16:3+efi_rts_wq09:45:111
25649992610,260cyclictest32031-21kworker/u16:1+efi_rts_wq11:55:140
25650992590,258cyclictest5777-21kworker/u16:3+efi_rts_wq10:00:121
25651992570,256cyclictest32031-21kworker/u16:1+efi_rts_wq11:20:122
25649992540,253cyclictest4020-21kworker/u16:1+efi_rts_wq10:27:110
25650992530,252cyclictest2154-21kworker/u16:3+efi_rts_wq11:35:121
25651992510,250cyclictest5777-21kworker/u16:3+efi_rts_wq10:30:122
25652992490,248cyclictest19643-21kworker/u16:0+efi_rts_wq11:05:123
25651992460,245cyclictest4020-21kworker/u16:1+efi_rts_wq10:25:102
25652992440,243cyclictest4020-21kworker/u16:1+efi_rts_wq08:05:133
25650992420,241cyclictest4020-21kworker/u16:1+efi_rts_wq09:55:121
25649992420,241cyclictest5777-21kworker/u16:3+efi_rts_wq09:16:570
25649992420,241cyclictest4020-21kworker/u16:1+efi_rts_wq08:45:130
25651992400,239cyclictest2154-21kworker/u16:3+efi_rts_wq12:02:272
25650992400,239cyclictest2154-21kworker/u16:3+efi_rts_wq12:15:111
25651992380,237cyclictest30777-21kworker/u16:2+efi_rts_wq07:20:122
25650992380,237cyclictest5777-21kworker/u16:3+efi_rts_wq09:35:111
25649992380,237cyclictest17055-21kworker/u16:2+efi_rts_wq10:40:120
25652992360,235cyclictest4020-21kworker/u16:1+efi_rts_wq10:05:133
25652992350,234cyclictest32031-21kworker/u16:1+efi_rts_wq11:50:113
25651992350,234cyclictest4020-21kworker/u16:1+efi_rts_wq07:55:122
25649992350,234cyclictest5777-21kworker/u16:3+efi_rts_wq09:05:110
25649992350,234cyclictest4020-21kworker/u16:1+efi_rts_wq07:35:110
25649992350,234cyclictest32031-21kworker/u16:1+efi_rts_wq12:30:110
25651992340,232cyclictest2154-21kworker/u16:3+efi_rts_wq11:32:222
25652992330,232cyclictest32031-21kworker/u16:1+efi_rts_wq11:37:233
25652992320,231cyclictest4020-21kworker/u16:1+efi_rts_wq09:55:113
25650992310,229cyclictest5777-21kworker/u16:3+efi_rts_wq10:35:121
25652992290,228cyclictest4020-21kworker/u16:1+efi_rts_wq08:15:143
25649992290,227cyclictest19643-21kworker/u16:0+efi_rts_wq11:07:180
25649992280,227cyclictest5777-21kworker/u16:3+efi_rts_wq07:51:400
25650992270,226cyclictest5777-21kworker/u16:3+efi_rts_wq09:15:121
25649992270,226cyclictest5777-21kworker/u16:3+efi_rts_wq08:10:120
25650992250,224cyclictest2154-21kworker/u16:3+efi_rts_wq11:40:141
25652992240,223cyclictest32031-21kworker/u16:1+efi_rts_wq12:10:123
25651992210,220cyclictest17055-21kworker/u16:2+efi_rts_wq11:02:172
25650992200,219cyclictest19643-21kworker/u16:0+efi_rts_wq11:05:121
25649992200,219cyclictest4020-21kworker/u16:1+efi_rts_wq09:57:060
25649992180,217cyclictest4020-21kworker/u16:1+efi_rts_wq08:35:140
25649992150,214cyclictest32031-21kworker/u16:1+efi_rts_wq11:50:120
25649992110,210cyclictest4020-21kworker/u16:1+efi_rts_wq08:25:120
25650992100,209cyclictest4020-21kworker/u16:1+efi_rts_wq07:36:371
25652992090,208cyclictest5777-21kworker/u16:3+efi_rts_wq08:01:433
25650992090,208cyclictest4020-21kworker/u16:1+efi_rts_wq08:35:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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