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2026-06-21 - 06:49

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 Sun Jun 21, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41122336314,4sleep30-21swapper/319:09:233
39072328320,5sleep00-21swapper/019:06:440
40192320307,10sleep20-21swapper/219:08:102
38982317310,4sleep10-21swapper/119:06:371
4428993010,300cyclictest14185-21kworker/u16:3+efi_rts_wq22:00:120
4430992970,296cyclictest14185-21kworker/u16:3+efi_rts_wq22:30:132
4429992970,296cyclictest14185-21kworker/u16:3+efi_rts_wq20:00:121
4428992970,296cyclictest14185-21kworker/u16:3+efi_rts_wq22:05:140
4428992970,296cyclictest14185-21kworker/u16:3+efi_rts_wq22:05:130
4428992970,296cyclictest14185-21kworker/u16:3+efi_rts_wq21:05:110
4431992940,293cyclictest1759-21kworker/u16:1+efi_rts_wq20:40:113
4428992940,293cyclictest14185-21kworker/u16:3+efi_rts_wq21:40:080
4428992920,290cyclictest14185-21kworker/u16:3+efi_rts_wq20:50:130
4430992910,289cyclictest14185-21kworker/u16:3+efi_rts_wq22:20:122
4431992890,288cyclictest1759-21kworker/u16:1+efi_rts_wq19:49:473
4429992890,288cyclictest1759-21kworker/u16:1+efi_rts_wq22:45:191
4429992890,288cyclictest1759-21kworker/u16:1+efi_rts_wq19:29:431
4431992880,287cyclictest1759-21kworker/u16:1+efi_rts_wq22:35:123
4431992880,287cyclictest1759-21kworker/u16:1+efi_rts_wq21:25:143
4429992870,286cyclictest14185-21kworker/u16:3+efi_rts_wq19:54:481
4431992860,285cyclictest1759-21kworker/u16:1+efi_rts_wq19:35:133
4431992850,284cyclictest1759-21kworker/u16:1+efi_rts_wq20:05:123
4429992850,284cyclictest1759-21kworker/u16:1+efi_rts_wq22:00:131
4429992850,284cyclictest1759-21kworker/u16:1+efi_rts_wq21:35:121
4428992850,284cyclictest1759-21kworker/u16:1+efi_rts_wq19:10:130
4431992840,282cyclictest22679-21kworker/u16:1+efi_rts_wq23:35:113
4428992840,283cyclictest31933-21kworker/u16:1+efi_rts_wq00:15:360
4430992830,280cyclictest979-21kworker/u16:2+efi_rts_wq23:05:122
4428992830,282cyclictest1759-21kworker/u16:1+efi_rts_wq21:30:120
4431992820,281cyclictest14185-21kworker/u16:3+efi_rts_wq21:50:103
4428992790,278cyclictest13197-21kworker/u16:0+efi_rts_wq23:20:120
4429992780,277cyclictest20408-21kworker/u16:3+efi_rts_wq23:55:121
4428992780,277cyclictest1759-21kworker/u16:1+efi_rts_wq21:50:140
4431992770,276cyclictest1797-21kworker/u16:2+efi_rts_wq00:30:113
4430992770,276cyclictest20408-21kworker/u16:3+efi_rts_wq23:40:292
4428992770,276cyclictest1797-21kworker/u16:2+efi_rts_wq00:05:130
4429992740,273cyclictest1759-21kworker/u16:1+efi_rts_wq20:45:141
4428992740,273cyclictest1759-21kworker/u16:1+efi_rts_wq19:24:430
4429992730,272cyclictest1759-21kworker/u16:1+efi_rts_wq21:00:011
4429992730,271cyclictest979-21kworker/u16:2+efi_rts_wq22:50:131
4430992720,271cyclictest979-21kworker/u16:2+efi_rts_wq23:30:112
4428992720,271cyclictest14185-21kworker/u16:3+efi_rts_wq19:30:130
4428992710,270cyclictest22679-21kworker/u16:1+efi_rts_wq23:35:110
4428992710,270cyclictest14185-21kworker/u16:3+efi_rts_wq23:15:140
4430992690,268cyclictest20408-21kworker/u16:3+efi_rts_wq23:55:122
4428992690,268cyclictest14185-21kworker/u16:3+efi_rts_wq20:15:120
4430992680,267cyclictest14185-21kworker/u16:3+efi_rts_wq20:55:122
4429992680,267cyclictest1759-21kworker/u16:1+efi_rts_wq21:15:121
4429992680,265cyclictest1759-21kworker/u16:1+efi_rts_wq19:55:131
4428992680,267cyclictest979-21kworker/u16:2+efi_rts_wq22:55:210
4428992670,266cyclictest979-21kworker/u16:2+efi_rts_wq23:10:110
4431992660,264cyclictest14185-21kworker/u16:3+efi_rts_wq23:05:123
4430992650,264cyclictest1797-21kworker/u16:2+efi_rts_wq00:25:132
4431992640,263cyclictest14185-21kworker/u16:3+efi_rts_wq22:15:123
4428992630,262cyclictest1759-21kworker/u16:1+efi_rts_wq20:25:120
4431992620,261cyclictest14185-21kworker/u16:3+efi_rts_wq22:10:143
4431992610,260cyclictest979-21kworker/u16:2+efi_rts_wq23:25:133
4430992600,259cyclictest979-21kworker/u16:2+efi_rts_wq22:50:132
4428992590,258cyclictest31933-21kworker/u16:1+efi_rts_wq00:20:140
4428992590,258cyclictest1759-21kworker/u16:1+efi_rts_wq22:35:120
4431992570,256cyclictest1797-21kworker/u16:2+efi_rts_wq00:35:393
4430992570,256cyclictest1759-21kworker/u16:1+efi_rts_wq21:35:132
4430992550,254cyclictest14185-21kworker/u16:3+efi_rts_wq22:10:132
4429992540,253cyclictest1759-21kworker/u16:1+efi_rts_wq21:25:131
4429992530,252cyclictest1797-21kworker/u16:2+efi_rts_wq00:10:341
4429992530,252cyclictest1759-21kworker/u16:1+efi_rts_wq20:55:001
4431992520,251cyclictest14185-21kworker/u16:3+efi_rts_wq19:15:123
4428992510,250cyclictest1797-21kworker/u16:2+efi_rts_wq00:30:120
4428992510,250cyclictest1797-21kworker/u16:2+efi_rts_wq00:00:130
4430992500,248cyclictest1759-21kworker/u16:1+efi_rts_wq19:55:132
4430992490,248cyclictest1759-21kworker/u16:1+efi_rts_wq20:35:122
4431992480,247cyclictest1759-21kworker/u16:1+efi_rts_wq22:05:123
4431992480,247cyclictest1759-21kworker/u16:1+efi_rts_wq22:05:123
4431992480,247cyclictest1759-21kworker/u16:1+efi_rts_wq21:00:113
4431992460,245cyclictest979-21kworker/u16:2+efi_rts_wq23:00:123
4429992460,245cyclictest14185-21kworker/u16:3+efi_rts_wq19:15:011
4428992460,245cyclictest14185-21kworker/u16:3+efi_rts_wq22:30:170
4431992450,244cyclictest979-21kworker/u16:2+efi_rts_wq22:50:203
4428992450,244cyclictest1759-21kworker/u16:1+efi_rts_wq22:45:120
4430992430,242cyclictest14185-21kworker/u16:3+efi_rts_wq19:45:112
4428992430,242cyclictest1759-21kworker/u16:1+efi_rts_wq20:30:100
4428992420,240cyclictest25121-21kworker/u16:0+efi_rts_wq23:45:120
4430992410,240cyclictest1759-21kworker/u16:1+efi_rts_wq20:20:132
4429992400,239cyclictest979-21kworker/u16:2+efi_rts_wq23:10:091
4429992380,237cyclictest14185-21kworker/u16:3+efi_rts_wq22:15:141
4428992380,237cyclictest1759-21kworker/u16:1+efi_rts_wq19:44:460
4430992370,236cyclictest1759-21kworker/u16:1+efi_rts_wq21:50:142
4428992370,236cyclictest1759-21kworker/u16:1+efi_rts_wq20:10:130
4430992350,234cyclictest1759-21kworker/u16:1+efi_rts_wq21:55:132
4428992310,230cyclictest1797-21kworker/u16:2+efi_rts_wq00:35:120
4430992300,228cyclictest14185-21kworker/u16:3+efi_rts_wq22:40:122
4428992290,228cyclictest1759-21kworker/u16:1+efi_rts_wq21:20:050
4431992250,224cyclictest14185-21kworker/u16:3+efi_rts_wq21:10:133
4428992230,222cyclictest14185-21kworker/u16:3+efi_rts_wq22:40:130
4429992220,221cyclictest25121-21kworker/u16:0+efi_rts_wq23:45:121
4428992200,219cyclictest14185-21kworker/u16:3+efi_rts_wq19:50:130
4431992190,218cyclictest1759-21kworker/u16:1+efi_rts_wq19:40:103
4431992180,217cyclictest1759-21kworker/u16:1+efi_rts_wq20:45:143
4429992170,216cyclictest14185-21kworker/u16:3+efi_rts_wq21:05:101
4430992150,214cyclictest1759-21kworker/u16:1+efi_rts_wq21:20:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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