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2026-06-03 - 15:16

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 03, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83332318305,4sleep20-21swapper/207:06:242
86152316305,9sleep10-21swapper/107:09:591
83822316308,5sleep30-21swapper/307:07:013
82612314306,5sleep00-21swapper/007:05:290
8880993000,299cyclictest32587-21kworker/u16:2+efi_rts_wq08:35:141
8882992990,298cyclictest1207-21kworker/u16:1+efi_rts_wq11:17:073
8881992990,298cyclictest32587-21kworker/u16:2+efi_rts_wq09:35:122
8878992990,296cyclictest1105-21kworker/u16:0+efi_rts_wq12:35:120
8882992950,294cyclictest32587-21kworker/u16:2+efi_rts_wq09:30:113
8881992940,293cyclictest32587-21kworker/u16:2+efi_rts_wq08:50:132
8881992930,292cyclictest32587-21kworker/u16:2+efi_rts_wq07:20:132
8880992910,290cyclictest1105-21kworker/u16:0+efi_rts_wq11:52:131
8882992900,289cyclictest32587-21kworker/u16:2+efi_rts_wq10:16:553
8881992900,289cyclictest566-21kworker/u16:3+efi_rts_wq07:30:142
8882992890,288cyclictest32587-21kworker/u16:2+efi_rts_wq07:45:123
8880992890,288cyclictest566-21kworker/u16:3+efi_rts_wq10:25:121
8878992890,288cyclictest32587-21kworker/u16:2+efi_rts_wq08:35:140
8882992880,287cyclictest566-21kworker/u16:3+efi_rts_wq07:50:143
8878992880,287cyclictest31126-21kworker/u16:0+efi_rts_wq11:00:120
8882992870,286cyclictest566-21kworker/u16:3+efi_rts_wq07:35:143
8882992870,286cyclictest32587-21kworker/u16:2+efi_rts_wq08:30:143
8882992860,285cyclictest566-21kworker/u16:3+efi_rts_wq08:25:133
8878992860,285cyclictest16874-21kworker/u16:0+efi_rts_wq11:20:110
8878992840,283cyclictest566-21kworker/u16:3+efi_rts_wq07:10:140
8881992820,281cyclictest19946-21kworker/u16:3+efi_rts_wq11:40:122
8880992820,281cyclictest1105-21kworker/u16:0+efi_rts_wq12:02:161
8882992810,280cyclictest32587-21kworker/u16:2+efi_rts_wq08:10:133
8881992810,280cyclictest1207-21kworker/u16:1+efi_rts_wq11:05:132
8880992810,280cyclictest23883-21kworker/u16:2+efi_rts_wq11:35:121
8878992800,279cyclictest566-21kworker/u16:3+efi_rts_wq07:15:120
8878992800,279cyclictest31126-21kworker/u16:0+efi_rts_wq10:52:010
8881992790,278cyclictest566-21kworker/u16:3+efi_rts_wq08:55:132
8878992770,276cyclictest23883-21kworker/u16:2+efi_rts_wq11:55:130
8880992760,275cyclictest1105-21kworker/u16:0+efi_rts_wq12:05:121
8882992750,274cyclictest19946-21kworker/u16:3+efi_rts_wq11:25:143
8880992740,273cyclictest32587-21kworker/u16:2+efi_rts_wq09:10:111
8881992720,271cyclictest32587-21kworker/u16:2+efi_rts_wq08:00:122
8881992720,270cyclictest23883-21kworker/u16:2+efi_rts_wq11:50:112
8880992720,271cyclictest566-21kworker/u16:3+efi_rts_wq09:20:121
8882992710,270cyclictest1105-21kworker/u16:0+efi_rts_wq12:25:143
8881992710,269cyclictest23883-21kworker/u16:2+efi_rts_wq11:57:152
8880992710,270cyclictest32587-21kworker/u16:2+efi_rts_wq08:30:121
8878992710,270cyclictest566-21kworker/u16:3+efi_rts_wq09:00:130
8881992700,269cyclictest566-21kworker/u16:3+efi_rts_wq09:06:422
8880992700,269cyclictest566-21kworker/u16:3+efi_rts_wq09:05:131
8880992700,269cyclictest566-21kworker/u16:3+efi_rts_wq08:05:131
8882992690,268cyclictest566-21kworker/u16:3+efi_rts_wq09:11:423
8880992690,268cyclictest566-21kworker/u16:3+efi_rts_wq07:15:121
8882992680,267cyclictest23883-21kworker/u16:2+efi_rts_wq11:55:133
8881992680,267cyclictest566-21kworker/u16:3+efi_rts_wq09:56:512
8880992670,266cyclictest32587-21kworker/u16:2+efi_rts_wq08:56:401
8882992650,264cyclictest566-21kworker/u16:3+efi_rts_wq10:26:563
8878992650,264cyclictest32587-21kworker/u16:2+efi_rts_wq08:10:120
8878992650,264cyclictest1207-21kworker/u16:1+efi_rts_wq11:10:130
8880992630,262cyclictest32587-21kworker/u16:2+efi_rts_wq09:55:121
8881992620,259cyclictest32587-21kworker/u16:2+efi_rts_wq07:55:132
8880992620,261cyclictest1105-21kworker/u16:0+efi_rts_wq12:15:131
8882992610,260cyclictest1207-21kworker/u16:1+efi_rts_wq10:55:113
8882992590,258cyclictest32587-21kworker/u16:2+efi_rts_wq10:30:133
8882992590,258cyclictest1207-21kworker/u16:1+efi_rts_wq11:05:133
8881992590,258cyclictest566-21kworker/u16:3+efi_rts_wq08:40:122
8880992590,258cyclictest32587-21kworker/u16:2+efi_rts_wq10:10:131
8882992580,257cyclictest32587-21kworker/u16:2+efi_rts_wq09:45:123
8880992580,257cyclictest566-21kworker/u16:3+efi_rts_wq07:35:131
8878992580,257cyclictest32587-21kworker/u16:2+efi_rts_wq09:36:470
8881992560,255cyclictest32587-21kworker/u16:2+efi_rts_wq10:05:122
8878992540,253cyclictest19946-21kworker/u16:3+efi_rts_wq11:40:130
8878992520,251cyclictest566-21kworker/u16:3+efi_rts_wq07:51:260
8878992520,251cyclictest1207-21kworker/u16:1+efi_rts_wq10:42:000
8878992510,250cyclictest23883-21kworker/u16:2+efi_rts_wq12:00:120
8882992480,247cyclictest16874-21kworker/u16:0+efi_rts_wq11:20:123
8881992480,247cyclictest566-21kworker/u16:3+efi_rts_wq10:35:112
8881992470,246cyclictest32587-21kworker/u16:2+efi_rts_wq09:10:112
8878992470,246cyclictest1105-21kworker/u16:0+efi_rts_wq12:10:140
8882992460,245cyclictest32587-21kworker/u16:2+efi_rts_wq09:16:443
8882992460,245cyclictest32587-21kworker/u16:2+efi_rts_wq08:16:303
8880992460,245cyclictest32587-21kworker/u16:2+efi_rts_wq10:31:581
8881992450,244cyclictest32587-21kworker/u16:2+efi_rts_wq09:50:112
8878992450,244cyclictest32587-21kworker/u16:2+efi_rts_wq10:00:130
8882992430,242cyclictest19946-21kworker/u16:3+efi_rts_wq11:45:133
8882992430,242cyclictest1105-21kworker/u16:0+efi_rts_wq12:22:193
8878992420,241cyclictest1105-21kworker/u16:0+efi_rts_wq12:25:130
8880992410,240cyclictest32587-21kworker/u16:2+efi_rts_wq10:05:121
8882992400,239cyclictest32587-21kworker/u16:2+efi_rts_wq07:41:243
8881992390,238cyclictest566-21kworker/u16:3+efi_rts_wq07:15:012
8881992390,238cyclictest32587-21kworker/u16:2+efi_rts_wq07:40:142
8880992360,235cyclictest566-21kworker/u16:3+efi_rts_wq08:40:121
8882992340,233cyclictest32587-21kworker/u16:2+efi_rts_wq07:25:133
8882992330,232cyclictest32587-21kworker/u16:2+efi_rts_wq07:20:123
8882992320,231cyclictest32587-21kworker/u16:2+efi_rts_wq08:45:143
8880992310,230cyclictest32587-21kworker/u16:2+efi_rts_wq07:45:121
8882992300,229cyclictest31126-21kworker/u16:0+efi_rts_wq11:00:133
8881992290,228cyclictest32587-21kworker/u16:2+efi_rts_wq09:25:142
8878992270,226cyclictest566-21kworker/u16:3+efi_rts_wq08:20:130
8878992260,225cyclictest31126-21kworker/u16:0+efi_rts_wq10:45:120
8881992250,224cyclictest1207-21kworker/u16:1+efi_rts_wq11:15:122
8880992240,223cyclictest32587-21kworker/u16:2+efi_rts_wq08:11:301
8880992240,222cyclictest19946-21kworker/u16:3+efi_rts_wq11:45:131
8880992230,222cyclictest566-21kworker/u16:3+efi_rts_wq09:26:461
8880992230,222cyclictest1105-21kworker/u16:0+efi_rts_wq12:30:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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