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2025-12-06 - 04:03

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 Dec 06, 2025 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67592327320,4sleep10-21swapper/119:08:361
66272319311,5sleep20-21swapper/219:06:532
67282317303,5sleep00-21swapper/019:08:110
68572316309,5sleep30-21swapper/319:09:503
7136993100,307cyclictest25802-21kworker/u16:3+efi_rts_wq22:35:133
7136992980,297cyclictest25802-21kworker/u16:3+efi_rts_wq22:55:143
7136992980,296cyclictest17167-21kworker/u16:3+efi_rts_wq23:24:553
7134992980,297cyclictest21360-21kworker/u16:2+efi_rts_wq21:50:121
7135992970,296cyclictest25802-21kworker/u16:3+efi_rts_wq22:30:132
7136992940,293cyclictest25802-21kworker/u16:3+efi_rts_wq22:40:153
7135992930,292cyclictest21360-21kworker/u16:2+efi_rts_wq23:15:132
7135992920,291cyclictest6842-21kworker/u16:0+efi_rts_wq23:35:132
7134992920,291cyclictest25802-21kworker/u16:3+efi_rts_wq22:00:121
7135992910,290cyclictest17167-21kworker/u16:3+efi_rts_wq23:20:152
7135992910,290cyclictest17167-21kworker/u16:3+efi_rts_wq00:30:152
7135992910,289cyclictest6842-21kworker/u16:0+efi_rts_wq00:15:132
7136992900,289cyclictest6842-21kworker/u16:0+efi_rts_wq23:51:353
7135992900,289cyclictest25802-21kworker/u16:3+efi_rts_wq20:20:132
7136992890,288cyclictest6842-21kworker/u16:0+efi_rts_wq00:00:143
7136992870,286cyclictest21360-21kworker/u16:2+efi_rts_wq22:25:173
7135992870,286cyclictest6842-21kworker/u16:0+efi_rts_wq23:55:152
7134992870,286cyclictest17167-21kworker/u16:3+efi_rts_wq23:25:151
7135992860,285cyclictest6842-21kworker/u16:0+efi_rts_wq00:00:152
7136992840,283cyclictest17167-21kworker/u16:3+efi_rts_wq00:20:113
7136992830,282cyclictest21360-21kworker/u16:2+efi_rts_wq22:15:163
7136992820,281cyclictest17167-21kworker/u16:3+efi_rts_wq00:31:423
7134992820,281cyclictest21360-21kworker/u16:2+efi_rts_wq22:25:171
7135992790,278cyclictest21360-21kworker/u16:2+efi_rts_wq19:40:132
7136992780,277cyclictest17167-21kworker/u16:3+efi_rts_wq23:30:133
7135992780,276cyclictest6842-21kworker/u16:0+efi_rts_wq23:00:122
7134992780,277cyclictest17167-21kworker/u16:3+efi_rts_wq00:30:151
7135992770,276cyclictest21360-21kworker/u16:2+efi_rts_wq22:05:132
7134992770,276cyclictest21360-21kworker/u16:2+efi_rts_wq21:30:131
7135992750,274cyclictest25802-21kworker/u16:3+efi_rts_wq21:09:292
7136992740,273cyclictest25802-21kworker/u16:3+efi_rts_wq22:24:443
7135992740,273cyclictest25802-21kworker/u16:3+efi_rts_wq20:00:132
7136992720,271cyclictest21360-21kworker/u16:2+efi_rts_wq20:55:143
7135992720,271cyclictest17167-21kworker/u16:3+efi_rts_wq00:10:122
7135992710,270cyclictest6842-21kworker/u16:0+efi_rts_wq00:26:422
7135992710,270cyclictest25802-21kworker/u16:3+efi_rts_wq21:45:122
7133992710,270cyclictest21360-21kworker/u16:2+efi_rts_wq21:35:130
7133992710,270cyclictest21360-21kworker/u16:2+efi_rts_wq19:55:120
7135992680,267cyclictest25802-21kworker/u16:3+efi_rts_wq19:15:012
7134992680,267cyclictest21360-21kworker/u16:2+efi_rts_wq22:45:121
7135992670,265cyclictest17167-21kworker/u16:3+efi_rts_wq23:25:162
7136992660,265cyclictest21360-21kworker/u16:2+efi_rts_wq20:49:263
7134992660,265cyclictest17167-21kworker/u16:3+efi_rts_wq00:35:131
7135992650,263cyclictest6842-21kworker/u16:0+efi_rts_wq23:45:142
7135992640,263cyclictest25802-21kworker/u16:3+efi_rts_wq21:00:142
7134992640,262cyclictest6842-21kworker/u16:0+efi_rts_wq00:00:131
7136992630,262cyclictest21360-21kworker/u16:2+efi_rts_wq21:05:143
7135992630,262cyclictest25802-21kworker/u16:3+efi_rts_wq21:25:152
7136992620,261cyclictest25802-21kworker/u16:3+efi_rts_wq19:50:133
7133992610,260cyclictest17167-21kworker/u16:3+efi_rts_wq23:40:130
7134992600,259cyclictest21360-21kworker/u16:2+efi_rts_wq19:55:121
7134992600,258cyclictest21360-21kworker/u16:2+efi_rts_wq23:15:141
7133992600,259cyclictest21360-21kworker/u16:2+efi_rts_wq21:55:120
7136992590,258cyclictest25802-21kworker/u16:3+efi_rts_wq20:40:143
7134992590,258cyclictest17167-21kworker/u16:3+efi_rts_wq00:21:411
7136992580,257cyclictest25802-21kworker/u16:3+efi_rts_wq22:10:143
7134992580,256cyclictest6842-21kworker/u16:0+efi_rts_wq23:00:131
7133992560,255cyclictest25802-21kworker/u16:3+efi_rts_wq21:45:120
7133992560,255cyclictest25802-21kworker/u16:3+efi_rts_wq19:10:140
7136992550,254cyclictest17167-21kworker/u16:3+efi_rts_wq00:10:133
7135992540,253cyclictest21360-21kworker/u16:2+efi_rts_wq20:35:122
7133992540,253cyclictest21360-21kworker/u16:2+efi_rts_wq20:45:090
7136992530,252cyclictest21360-21kworker/u16:2+efi_rts_wq21:55:123
7133992520,251cyclictest21360-21kworker/u16:2+efi_rts_wq19:45:130
7133992510,248cyclictest6842-21kworker/u16:0+efi_rts_wq23:55:150
7134992500,249cyclictest21360-21kworker/u16:2+efi_rts_wq19:30:131
7135992490,248cyclictest25802-21kworker/u16:3+efi_rts_wq20:30:152
7134992480,247cyclictest21360-21kworker/u16:2+efi_rts_wq22:15:161
7136992460,245cyclictest21360-21kworker/u16:2+efi_rts_wq19:20:123
7135992450,244cyclictest21360-21kworker/u16:2+efi_rts_wq20:25:152
7134992410,240cyclictest25802-21kworker/u16:3+efi_rts_wq20:04:171
7135992400,239cyclictest25802-21kworker/u16:3+efi_rts_wq19:34:112
7135992400,239cyclictest21360-21kworker/u16:2+efi_rts_wq20:55:142
7134992390,238cyclictest25802-21kworker/u16:3+efi_rts_wq20:10:171
7134992380,236cyclictest21360-21kworker/u16:2+efi_rts_wq23:05:121
7134992370,236cyclictest25802-21kworker/u16:3+efi_rts_wq22:55:131
7136992360,235cyclictest25802-21kworker/u16:3+efi_rts_wq20:10:163
7134992340,233cyclictest25802-21kworker/u16:3+efi_rts_wq21:40:111
7134992340,233cyclictest21360-21kworker/u16:2+efi_rts_wq19:44:131
7135992330,232cyclictest17167-21kworker/u16:3+efi_rts_wq23:50:122
7133992310,230cyclictest25802-21kworker/u16:3+efi_rts_wq22:20:160
7136992300,229cyclictest6842-21kworker/u16:0+efi_rts_wq00:05:133
7134992300,229cyclictest6842-21kworker/u16:0+efi_rts_wq23:34:571
7135992260,225cyclictest17167-21kworker/u16:3+efi_rts_wq00:20:102
7136992250,224cyclictest25802-21kworker/u16:3+efi_rts_wq20:20:123
7134992230,221cyclictest21360-21kworker/u16:2+efi_rts_wq20:55:131
7136992220,220cyclictest25802-21kworker/u16:3+efi_rts_wq22:30:133
7136992210,220cyclictest6842-21kworker/u16:0+efi_rts_wq23:04:523
7136992210,220cyclictest17167-21kworker/u16:3+efi_rts_wq23:44:593
7135992200,219cyclictest21360-21kworker/u16:2+efi_rts_wq19:20:122
7136992190,218cyclictest17167-21kworker/u16:3+efi_rts_wq00:36:443
7134992170,216cyclictest25802-21kworker/u16:3+efi_rts_wq19:35:131
7133992170,216cyclictest6842-21kworker/u16:0+efi_rts_wq00:25:160
7133992160,215cyclictest6842-21kworker/u16:0+efi_rts_wq23:35:130
7133992160,214cyclictest21360-21kworker/u16:2+efi_rts_wq22:59:510
7134992140,213cyclictest21360-21kworker/u16:2+efi_rts_wq19:49:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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