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2025-11-10 - 06:43

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 Mon Nov 10, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83182320306,5sleep10-21swapper/119:08:291
82272317310,5sleep00-21swapper/019:07:200
84212315307,5sleep20-21swapper/219:09:462
82952315307,5sleep30-21swapper/319:08:113
8705992980,295cyclictest6336-21kworker/u16:2+efi_rts_wq20:35:162
8704992980,297cyclictest12846-21kworker/u16:0+efi_rts_wq20:30:171
8706992970,296cyclictest5752-21kworker/u16:1+efi_rts_wq00:26:343
8704992970,296cyclictest6336-21kworker/u16:2+efi_rts_wq22:10:061
8704992960,295cyclictest12846-21kworker/u16:0+efi_rts_wq19:30:141
8703992960,295cyclictest12846-21kworker/u16:0+efi_rts_wq19:45:150
8706992950,294cyclictest6336-21kworker/u16:2+efi_rts_wq23:10:153
8705992950,294cyclictest12846-21kworker/u16:0+efi_rts_wq22:20:132
8706992940,293cyclictest12846-21kworker/u16:0+efi_rts_wq20:00:153
8703992940,293cyclictest12846-21kworker/u16:0+efi_rts_wq22:00:140
8705992930,292cyclictest12846-21kworker/u16:0+efi_rts_wq23:25:142
8704992930,292cyclictest6336-21kworker/u16:2+efi_rts_wq22:55:141
8704992930,292cyclictest12846-21kworker/u16:0+efi_rts_wq21:35:131
8705992920,290cyclictest3462-21kworker/u16:2+efi_rts_wq00:10:172
8705992910,290cyclictest6336-21kworker/u16:2+efi_rts_wq21:40:152
8703992910,290cyclictest12846-21kworker/u16:0+efi_rts_wq19:44:380
8706992900,288cyclictest6336-21kworker/u16:2+efi_rts_wq22:55:133
8706992890,288cyclictest6336-21kworker/u16:2+efi_rts_wq21:25:153
8706992890,288cyclictest6336-21kworker/u16:2+efi_rts_wq20:05:163
8704992890,288cyclictest5752-21kworker/u16:1+efi_rts_wq00:15:131
8706992880,287cyclictest5752-21kworker/u16:1+efi_rts_wq00:01:293
8704992870,286cyclictest12846-21kworker/u16:0+efi_rts_wq23:00:151
8705992860,285cyclictest7473-21kworker/u16:3+efi_rts_wq19:10:162
8704992860,285cyclictest12846-21kworker/u16:0+efi_rts_wq23:40:151
8705992830,282cyclictest12846-21kworker/u16:0+efi_rts_wq20:50:142
8705992830,282cyclictest12846-21kworker/u16:0+efi_rts_wq19:25:142
8706992820,281cyclictest6336-21kworker/u16:2+efi_rts_wq20:55:153
8704992820,281cyclictest6336-21kworker/u16:2+efi_rts_wq19:50:131
8704992820,281cyclictest12846-21kworker/u16:0+efi_rts_wq23:15:121
8706992810,280cyclictest12846-21kworker/u16:0+efi_rts_wq20:45:133
8705992810,280cyclictest12846-21kworker/u16:0+efi_rts_wq20:10:162
8703992790,278cyclictest12846-21kworker/u16:0+efi_rts_wq20:30:180
8706992770,276cyclictest12846-21kworker/u16:0+efi_rts_wq21:30:183
8706992750,274cyclictest6336-21kworker/u16:2+efi_rts_wq19:34:363
8706992750,274cyclictest12846-21kworker/u16:0+efi_rts_wq21:05:143
8705992750,274cyclictest6336-21kworker/u16:2+efi_rts_wq23:05:182
8705992750,274cyclictest3462-21kworker/u16:2+efi_rts_wq00:30:182
8703992750,274cyclictest6336-21kworker/u16:2+efi_rts_wq20:25:160
8704992740,273cyclictest6336-21kworker/u16:2+efi_rts_wq22:50:151
8704992740,273cyclictest26438-21kworker/u16:3+efi_rts_wq23:35:141
8703992730,272cyclictest6336-21kworker/u16:2+efi_rts_wq20:40:150
8705992720,270cyclictest26438-21kworker/u16:3+efi_rts_wq23:56:282
8703992720,271cyclictest12846-21kworker/u16:0+efi_rts_wq23:45:150
8705992700,269cyclictest5752-21kworker/u16:1+efi_rts_wq00:05:152
8705992690,268cyclictest3462-21kworker/u16:2+efi_rts_wq00:35:152
8703992680,267cyclictest12846-21kworker/u16:0+efi_rts_wq21:20:130
8703992680,267cyclictest12846-21kworker/u16:0+efi_rts_wq21:20:130
8705992660,265cyclictest6336-21kworker/u16:2+efi_rts_wq21:14:552
8705992660,264cyclictest6336-21kworker/u16:2+efi_rts_wq22:15:122
8704992660,265cyclictest12846-21kworker/u16:0+efi_rts_wq23:50:161
8705992650,264cyclictest3462-21kworker/u16:2+efi_rts_wq00:20:162
8705992640,263cyclictest6336-21kworker/u16:2+efi_rts_wq22:45:142
8703992630,262cyclictest5752-21kworker/u16:1+efi_rts_wq00:25:160
8703992630,261cyclictest6336-21kworker/u16:2+efi_rts_wq22:30:150
8704992620,261cyclictest12846-21kworker/u16:0+efi_rts_wq21:05:141
8705992610,260cyclictest12846-21kworker/u16:0+efi_rts_wq20:20:132
8705992600,259cyclictest12846-21kworker/u16:0+efi_rts_wq20:29:472
8704992590,258cyclictest6336-21kworker/u16:2+efi_rts_wq23:10:151
8706992580,257cyclictest12846-21kworker/u16:0+efi_rts_wq22:50:133
8705992580,257cyclictest6336-21kworker/u16:2+efi_rts_wq19:35:172
8704992580,257cyclictest6336-21kworker/u16:2+efi_rts_wq21:55:141
8705992570,256cyclictest12846-21kworker/u16:0+efi_rts_wq19:55:122
8704992570,256cyclictest12846-21kworker/u16:0+efi_rts_wq21:29:581
8705992550,254cyclictest12846-21kworker/u16:0+efi_rts_wq20:34:482
8705992540,253cyclictest6336-21kworker/u16:2+efi_rts_wq19:40:152
8706992530,252cyclictest3462-21kworker/u16:2+efi_rts_wq00:20:153
8705992510,250cyclictest6336-21kworker/u16:2+efi_rts_wq22:50:152
8703992510,250cyclictest6336-21kworker/u16:2+efi_rts_wq23:20:140
8703992500,249cyclictest6336-21kworker/u16:2+efi_rts_wq22:35:140
8706992490,248cyclictest12846-21kworker/u16:0+efi_rts_wq23:55:133
8703992490,248cyclictest12846-21kworker/u16:0+efi_rts_wq22:45:120
8705992480,247cyclictest6336-21kworker/u16:2+efi_rts_wq21:45:132
8704992480,247cyclictest6336-21kworker/u16:2+efi_rts_wq23:30:221
8706992470,246cyclictest5752-21kworker/u16:1+efi_rts_wq00:31:353
8705992470,246cyclictest22380-21kworker/u16:1+efi_rts_wq19:15:142
8705992460,245cyclictest12846-21kworker/u16:0+efi_rts_wq23:30:142
8703992460,244cyclictest12846-21kworker/u16:0+efi_rts_wq23:55:130
8703992430,242cyclictest6336-21kworker/u16:2+efi_rts_wq19:55:130
8706992420,241cyclictest3462-21kworker/u16:2+efi_rts_wq00:36:363
8706992410,240cyclictest6336-21kworker/u16:2+efi_rts_wq19:24:343
8704992380,236cyclictest12846-21kworker/u16:0+efi_rts_wq22:40:151
8706992360,235cyclictest12846-21kworker/u16:0+efi_rts_wq21:20:143
8706992360,235cyclictest12846-21kworker/u16:0+efi_rts_wq21:20:143
8704992350,234cyclictest12846-21kworker/u16:0+efi_rts_wq19:20:121
8703992350,234cyclictest6336-21kworker/u16:2+efi_rts_wq21:19:560
8704992340,233cyclictest6336-21kworker/u16:2+efi_rts_wq21:50:131
8704992340,233cyclictest12846-21kworker/u16:0+efi_rts_wq21:00:141
8704992330,232cyclictest6336-21kworker/u16:2+efi_rts_wq19:35:171
8703992320,230cyclictest6336-21kworker/u16:2+efi_rts_wq23:10:150
8704992310,230cyclictest6336-21kworker/u16:2+efi_rts_wq21:15:131
8703992290,228cyclictest6336-21kworker/u16:2+efi_rts_wq20:15:140
8703992290,228cyclictest5752-21kworker/u16:1+efi_rts_wq00:00:190
8703992280,227cyclictest12846-21kworker/u16:0+efi_rts_wq23:30:150
8706992240,223cyclictest6336-21kworker/u16:2+efi_rts_wq22:40:113
8704992240,222cyclictest6336-21kworker/u16:2+efi_rts_wq22:35:151
8704992230,222cyclictest6336-21kworker/u16:2+efi_rts_wq22:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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