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2025-10-02 - 23:57

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 Thu Oct 02, 2025 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278152318304,4sleep10-21swapper/107:07:471
277262316303,10sleep30-21swapper/307:06:413
279282315307,5sleep00-21swapper/007:09:130
278162315307,5sleep20-21swapper/207:07:482
28254992950,292cyclictest20356-21kworker/u16:2+efi_rts_wq11:00:111
28254992940,293cyclictest12263-21kworker/u16:1+efi_rts_wq07:32:341
28253992940,293cyclictest12263-21kworker/u16:1+efi_rts_wq07:55:130
28256992930,292cyclictest12263-21kworker/u16:1+efi_rts_wq07:35:143
28256992900,289cyclictest12263-21kworker/u16:1+efi_rts_wq09:35:143
28255992890,288cyclictest12263-21kworker/u16:1+efi_rts_wq07:50:152
28254992890,288cyclictest3127-21kworker/u16:0+efi_rts_wq07:15:161
28256992880,287cyclictest12263-21kworker/u16:1+efi_rts_wq07:25:153
28255992880,287cyclictest20356-21kworker/u16:2+efi_rts_wq11:18:152
28253992880,287cyclictest12263-21kworker/u16:1+efi_rts_wq09:40:130
28253992870,286cyclictest20356-21kworker/u16:2+efi_rts_wq10:48:090
28253992840,283cyclictest3127-21kworker/u16:0+efi_rts_wq07:15:000
28253992840,283cyclictest20356-21kworker/u16:2+efi_rts_wq11:35:130
28254992830,282cyclictest3127-21kworker/u16:0+efi_rts_wq09:25:151
28253992830,282cyclictest3127-21kworker/u16:0+efi_rts_wq10:58:110
28253992830,281cyclictest3127-21kworker/u16:0+efi_rts_wq07:45:130
28254992820,279cyclictest20356-21kworker/u16:2+efi_rts_wq10:45:131
28255992810,280cyclictest3127-21kworker/u16:0+efi_rts_wq08:50:122
28253992810,279cyclictest30371-21kworker/u16:3+efi_rts_wq11:10:160
28256992800,279cyclictest3127-21kworker/u16:0+efi_rts_wq10:40:163
28253992800,279cyclictest3127-21kworker/u16:0+efi_rts_wq08:15:150
28254992780,277cyclictest24093-21kworker/u16:0+efi_rts_wq12:15:131
28253992780,277cyclictest3127-21kworker/u16:0+efi_rts_wq10:05:300
28256992750,274cyclictest3127-21kworker/u16:0+efi_rts_wq09:10:123
28254992730,272cyclictest20356-21kworker/u16:2+efi_rts_wq10:50:141
28253992730,272cyclictest12263-21kworker/u16:1+efi_rts_wq08:05:140
28256992720,271cyclictest8366-21kworker/u16:1+efi_rts_wq11:28:173
28253992720,271cyclictest24093-21kworker/u16:0+efi_rts_wq11:58:220
28256992710,270cyclictest24093-21kworker/u16:0+efi_rts_wq12:35:143
28256992710,270cyclictest20356-21kworker/u16:2+efi_rts_wq11:20:123
28255992710,270cyclictest3127-21kworker/u16:0+efi_rts_wq10:05:292
28255992710,270cyclictest3127-21kworker/u16:0+efi_rts_wq07:45:122
28254992710,270cyclictest12263-21kworker/u16:1+efi_rts_wq08:40:121
28256992700,269cyclictest12263-21kworker/u16:1+efi_rts_wq10:35:153
28253992700,269cyclictest3127-21kworker/u16:0+efi_rts_wq09:20:130
28255992690,268cyclictest3127-21kworker/u16:0+efi_rts_wq08:15:152
28255992690,268cyclictest3127-21kworker/u16:0+efi_rts_wq07:37:342
28254992690,268cyclictest3127-21kworker/u16:0+efi_rts_wq10:40:151
28255992680,267cyclictest12263-21kworker/u16:1+efi_rts_wq09:00:122
28255992680,266cyclictest24093-21kworker/u16:0+efi_rts_wq11:55:162
28253992680,267cyclictest24093-21kworker/u16:0+efi_rts_wq12:10:120
28254992670,266cyclictest3127-21kworker/u16:0+efi_rts_wq08:52:481
28255992660,264cyclictest21817-21kworker/u16:3+efi_rts_wq12:00:122
28254992630,262cyclictest12263-21kworker/u16:1+efi_rts_wq09:05:141
28254992630,262cyclictest12263-21kworker/u16:1+efi_rts_wq07:40:141
28255992620,261cyclictest12263-21kworker/u16:1+efi_rts_wq10:15:122
28255992610,260cyclictest3127-21kworker/u16:0+efi_rts_wq08:45:132
28255992610,260cyclictest20356-21kworker/u16:2+efi_rts_wq11:45:122
28253992610,260cyclictest12263-21kworker/u16:1+efi_rts_wq09:15:110
28256992590,258cyclictest12263-21kworker/u16:1+efi_rts_wq08:05:133
28253992590,258cyclictest12263-21kworker/u16:1+efi_rts_wq09:30:140
28255992570,256cyclictest21817-21kworker/u16:3+efi_rts_wq12:05:142
28254992570,256cyclictest3127-21kworker/u16:0+efi_rts_wq08:20:151
28254992570,256cyclictest12263-21kworker/u16:1+efi_rts_wq08:10:151
28256992550,254cyclictest8366-21kworker/u16:1+efi_rts_wq11:33:173
28253992540,253cyclictest12263-21kworker/u16:1+efi_rts_wq09:52:590
28255992510,250cyclictest12263-21kworker/u16:1+efi_rts_wq09:40:132
28254992510,250cyclictest20356-21kworker/u16:2+efi_rts_wq11:30:131
28255992500,249cyclictest3127-21kworker/u16:0+efi_rts_wq07:30:112
28255992490,248cyclictest20356-21kworker/u16:2+efi_rts_wq10:43:082
28253992490,248cyclictest3127-21kworker/u16:0+efi_rts_wq09:55:130
28253992490,248cyclictest20356-21kworker/u16:2+efi_rts_wq11:40:130
28254992480,247cyclictest3127-21kworker/u16:0+efi_rts_wq09:45:111
28253992470,246cyclictest12263-21kworker/u16:1+efi_rts_wq10:30:140
28256992460,245cyclictest12263-21kworker/u16:1+efi_rts_wq07:20:143
28253992460,245cyclictest3127-21kworker/u16:0+efi_rts_wq10:10:140
28256992430,242cyclictest20356-21kworker/u16:2+efi_rts_wq11:40:133
28253992430,242cyclictest20356-21kworker/u16:2+efi_rts_wq11:25:100
28254992420,241cyclictest3127-21kworker/u16:0+efi_rts_wq08:25:141
28254992420,241cyclictest3127-21kworker/u16:0+efi_rts_wq07:20:141
28255992410,240cyclictest12263-21kworker/u16:1+efi_rts_wq09:27:542
28253992400,239cyclictest24093-21kworker/u16:0+efi_rts_wq12:30:130
28253992400,239cyclictest12263-21kworker/u16:1+efi_rts_wq07:22:320
28253992380,237cyclictest3127-21kworker/u16:0+efi_rts_wq08:25:150
28254992370,236cyclictest20356-21kworker/u16:2+efi_rts_wq11:08:131
28253992370,234cyclictest12263-21kworker/u16:1+efi_rts_wq08:30:120
28253992360,235cyclictest12263-21kworker/u16:1+efi_rts_wq07:10:130
28255992350,234cyclictest3127-21kworker/u16:0+efi_rts_wq09:47:572
28255992340,233cyclictest20356-21kworker/u16:2+efi_rts_wq11:25:112
28256992330,232cyclictest12263-21kworker/u16:1+efi_rts_wq10:18:023
28254992330,232cyclictest30371-21kworker/u16:3+efi_rts_wq11:10:161
28254992320,231cyclictest12263-21kworker/u16:1+efi_rts_wq07:55:121
28253992320,231cyclictest21817-21kworker/u16:3+efi_rts_wq12:20:120
28256992310,230cyclictest12263-21kworker/u16:1+efi_rts_wq10:25:133
28256992310,230cyclictest12263-21kworker/u16:1+efi_rts_wq10:25:123
28254992310,230cyclictest3127-21kworker/u16:0+efi_rts_wq08:00:101
28256992280,227cyclictest20356-21kworker/u16:2+efi_rts_wq11:35:143
28256992280,227cyclictest12263-21kworker/u16:1+efi_rts_wq09:15:123
28254992250,224cyclictest20356-21kworker/u16:2+efi_rts_wq10:55:131
28253992240,223cyclictest12263-21kworker/u16:1+efi_rts_wq07:27:320
28253992220,221cyclictest12263-21kworker/u16:1+efi_rts_wq10:35:170
28256992210,220cyclictest12263-21kworker/u16:1+efi_rts_wq10:20:163
28256992210,220cyclictest12263-21kworker/u16:1+efi_rts_wq10:20:153
28256992200,219cyclictest3127-21kworker/u16:0+efi_rts_wq09:55:133
28255992190,218cyclictest24093-21kworker/u16:0+efi_rts_wq12:28:282
28254992190,218cyclictest3127-21kworker/u16:0+efi_rts_wq10:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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