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2026-05-16 - 10:06

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 16, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82622319304,5sleep30-21swapper/319:09:273
79882317308,7sleep10-21swapper/119:05:511
82802315307,5sleep20-21swapper/219:09:382
64762314299,5sleep00-21swapper/019:05:100
8577992990,298cyclictest29235-21kworker/u16:3+efi_rts_wq23:51:123
8575992990,298cyclictest26713-21kworker/u16:1+efi_rts_wq21:45:121
8577992980,297cyclictest9991-21kworker/u16:0+efi_rts_wq00:25:133
8577992980,297cyclictest26713-21kworker/u16:1+efi_rts_wq22:50:103
8574992980,297cyclictest32546-21kworker/u16:2+efi_rts_wq21:09:480
8574992980,297cyclictest32546-21kworker/u16:2+efi_rts_wq20:40:120
8577992961,294cyclictest9991-21kworker/u16:0+efi_rts_wq00:10:103
8576992960,295cyclictest26713-21kworker/u16:1+efi_rts_wq23:00:112
8574992960,295cyclictest32546-21kworker/u16:2+efi_rts_wq20:50:130
8577992950,294cyclictest3878-21kworker/u16:2+efi_rts_wq00:15:123
8575992950,294cyclictest9991-21kworker/u16:0+efi_rts_wq23:35:121
8577992940,293cyclictest26713-21kworker/u16:1+efi_rts_wq20:05:133
8575992940,293cyclictest32546-21kworker/u16:2+efi_rts_wq22:40:141
8575992940,293cyclictest32546-21kworker/u16:2+efi_rts_wq22:40:131
8577992920,291cyclictest26713-21kworker/u16:1+efi_rts_wq22:55:113
8576992920,291cyclictest32546-21kworker/u16:2+efi_rts_wq19:30:132
8577992910,290cyclictest26713-21kworker/u16:1+efi_rts_wq20:15:133
8574992900,289cyclictest26713-21kworker/u16:1+efi_rts_wq20:59:470
8577992880,287cyclictest26713-21kworker/u16:1+efi_rts_wq21:30:123
8574992880,287cyclictest26713-21kworker/u16:1+efi_rts_wq20:30:130
8577992870,286cyclictest9991-21kworker/u16:0+efi_rts_wq00:00:113
8577992870,286cyclictest26713-21kworker/u16:1+efi_rts_wq21:10:133
8575992870,286cyclictest3878-21kworker/u16:2+efi_rts_wq00:05:131
8574992870,286cyclictest26713-21kworker/u16:1+efi_rts_wq20:45:110
8575992860,285cyclictest26713-21kworker/u16:1+efi_rts_wq21:35:121
8574992860,285cyclictest26713-21kworker/u16:1+efi_rts_wq21:55:130
8577992840,283cyclictest26713-21kworker/u16:1+efi_rts_wq22:30:143
8577992840,283cyclictest26713-21kworker/u16:1+efi_rts_wq20:55:123
8574992820,281cyclictest9991-21kworker/u16:0+efi_rts_wq00:30:110
8574992820,281cyclictest26713-21kworker/u16:1+efi_rts_wq19:50:130
8577992810,280cyclictest26713-21kworker/u16:1+efi_rts_wq21:49:563
8576992810,280cyclictest32546-21kworker/u16:2+efi_rts_wq22:35:132
8576992810,280cyclictest32546-21kworker/u16:2+efi_rts_wq22:35:132
8577992800,279cyclictest3878-21kworker/u16:2+efi_rts_wq00:36:233
8575992800,279cyclictest32546-21kworker/u16:2+efi_rts_wq22:50:111
8574992800,279cyclictest26713-21kworker/u16:1+efi_rts_wq23:25:130
8576992790,278cyclictest9991-21kworker/u16:0+efi_rts_wq00:21:192
8574992790,278cyclictest32546-21kworker/u16:2+efi_rts_wq22:55:120
8576992780,277cyclictest9991-21kworker/u16:0+efi_rts_wq23:35:122
8577992770,276cyclictest32546-21kworker/u16:2+efi_rts_wq22:15:143
8577992770,275cyclictest26713-21kworker/u16:1+efi_rts_wq23:10:123
8576992750,274cyclictest26713-21kworker/u16:1+efi_rts_wq22:10:122
8576992740,273cyclictest32546-21kworker/u16:2+efi_rts_wq20:10:122
8575992740,272cyclictest32546-21kworker/u16:2+efi_rts_wq19:35:091
8575992730,272cyclictest32546-21kworker/u16:2+efi_rts_wq20:34:461
8575992730,272cyclictest26713-21kworker/u16:1+efi_rts_wq22:20:111
8575992720,271cyclictest9991-21kworker/u16:0+efi_rts_wq00:26:211
8575992720,271cyclictest32546-21kworker/u16:2+efi_rts_wq20:20:131
8574992720,271cyclictest32546-21kworker/u16:2+efi_rts_wq19:39:350
8574992710,270cyclictest26713-21kworker/u16:1+efi_rts_wq19:55:130
8575992680,267cyclictest32546-21kworker/u16:2+efi_rts_wq22:15:141
8574992680,267cyclictest32546-21kworker/u16:2+efi_rts_wq20:04:400
8577992660,265cyclictest9991-21kworker/u16:0+efi_rts_wq23:20:143
8577992660,264cyclictest3878-21kworker/u16:2+efi_rts_wq23:55:133
8575992650,264cyclictest26713-21kworker/u16:1+efi_rts_wq19:10:131
8574992640,263cyclictest32546-21kworker/u16:2+efi_rts_wq21:25:120
8577992630,262cyclictest32546-21kworker/u16:2+efi_rts_wq19:35:113
8576992590,258cyclictest26713-21kworker/u16:1+efi_rts_wq21:45:122
8575992590,258cyclictest32546-21kworker/u16:2+efi_rts_wq19:45:121
8576992560,255cyclictest26713-21kworker/u16:1+efi_rts_wq23:15:112
8577992550,254cyclictest26713-21kworker/u16:1+efi_rts_wq22:45:093
8576992550,254cyclictest9991-21kworker/u16:0+efi_rts_wq23:40:112
8576992540,253cyclictest32546-21kworker/u16:2+efi_rts_wq22:40:142
8576992540,253cyclictest32546-21kworker/u16:2+efi_rts_wq22:40:142
8576992530,252cyclictest9991-21kworker/u16:0+efi_rts_wq23:30:152
8575992530,252cyclictest26713-21kworker/u16:1+efi_rts_wq21:04:471
8575992530,251cyclictest29235-21kworker/u16:3+efi_rts_wq23:50:121
8576992510,250cyclictest9991-21kworker/u16:0+efi_rts_wq23:05:112
8574992510,250cyclictest3878-21kworker/u16:2+efi_rts_wq00:35:130
8574992510,250cyclictest26713-21kworker/u16:1+efi_rts_wq23:15:140
8577992500,249cyclictest32546-21kworker/u16:2+efi_rts_wq22:00:113
8577992500,249cyclictest26713-21kworker/u16:1+efi_rts_wq19:15:013
8576992500,249cyclictest32546-21kworker/u16:2+efi_rts_wq21:15:122
8574992500,249cyclictest26713-21kworker/u16:1+efi_rts_wq19:25:110
8577992460,245cyclictest9991-21kworker/u16:0+efi_rts_wq23:05:113
8577992450,244cyclictest3878-21kworker/u16:2+efi_rts_wq00:05:133
8577992450,244cyclictest26713-21kworker/u16:1+efi_rts_wq23:15:113
8575992410,240cyclictest26713-21kworker/u16:1+efi_rts_wq22:30:121
8575992400,238cyclictest26713-21kworker/u16:1+efi_rts_wq23:10:111
8574992380,237cyclictest9991-21kworker/u16:0+efi_rts_wq23:05:130
8574992360,235cyclictest32546-21kworker/u16:2+efi_rts_wq21:44:540
8574992360,235cyclictest26713-21kworker/u16:1+efi_rts_wq23:20:120
8574992350,234cyclictest32546-21kworker/u16:2+efi_rts_wq20:14:420
8575992330,232cyclictest32546-21kworker/u16:2+efi_rts_wq20:10:121
8574992330,232cyclictest26713-21kworker/u16:1+efi_rts_wq19:40:110
8575992310,230cyclictest26713-21kworker/u16:1+efi_rts_wq21:30:121
8576992290,228cyclictest9991-21kworker/u16:0+efi_rts_wq23:45:122
8574992290,228cyclictest26713-21kworker/u16:1+efi_rts_wq23:30:130
8576992250,224cyclictest26713-21kworker/u16:1+efi_rts_wq21:20:142
8575992210,220cyclictest32546-21kworker/u16:2+efi_rts_wq20:29:431
8574992210,220cyclictest32546-21kworker/u16:2+efi_rts_wq21:50:120
8577992190,218cyclictest9991-21kworker/u16:0+efi_rts_wq23:00:123
8577992180,217cyclictest32546-21kworker/u16:2+efi_rts_wq21:19:483
8575992150,214cyclictest32546-21kworker/u16:2+efi_rts_wq22:55:121
8577992130,210cyclictest32546-21kworker/u16:2+efi_rts_wq22:05:133
8575992130,212cyclictest26713-21kworker/u16:1+efi_rts_wq20:35:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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