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2026-06-22 - 07:25

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 Jun 22, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236532327303,21sleep20-21swapper/219:06:242
239362317304,4sleep10-21swapper/119:10:001
238042316311,3sleep30-21swapper/319:08:213
220952314306,5sleep00-21swapper/019:05:060
24199992980,297cyclictest2489-21kworker/u16:3+efi_rts_wq22:59:580
24201992960,295cyclictest23926-21kworker/u16:0+efi_rts_wq21:25:122
24200992960,295cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:131
24201992950,294cyclictest26302-21kworker/u16:0+efi_rts_wq23:25:112
24201992950,294cyclictest1513-21kworker/u16:1+efi_rts_wq00:26:072
24202992940,293cyclictest1513-21kworker/u16:1+efi_rts_wq00:05:143
24202992930,292cyclictest28322-21kworker/u16:2+efi_rts_wq21:50:143
24202992930,291cyclictest2489-21kworker/u16:3+efi_rts_wq22:35:143
24200992920,291cyclictest28322-21kworker/u16:2+efi_rts_wq21:15:131
24199992920,291cyclictest26302-21kworker/u16:0+efi_rts_wq23:00:140
24199992910,290cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:130
24202992900,287cyclictest1513-21kworker/u16:1+efi_rts_wq00:10:143
24200992900,289cyclictest23926-21kworker/u16:0+efi_rts_wq21:05:131
24199992890,288cyclictest28322-21kworker/u16:2+efi_rts_wq20:30:150
24199992880,287cyclictest23926-21kworker/u16:0+efi_rts_wq20:50:130
24199992870,286cyclictest28322-21kworker/u16:2+efi_rts_wq22:05:110
24199992870,286cyclictest23926-21kworker/u16:0+efi_rts_wq20:25:140
24201992860,285cyclictest28322-21kworker/u16:2+efi_rts_wq19:45:142
24200992860,285cyclictest31354-21kworker/u16:1+efi_rts_wq22:39:531
24202992850,284cyclictest23926-21kworker/u16:0+efi_rts_wq21:40:123
24202992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq19:10:213
24202992840,283cyclictest23926-21kworker/u16:0+efi_rts_wq19:20:143
24200992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq21:55:111
24199992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq21:10:130
24202992830,282cyclictest2489-21kworker/u16:3+efi_rts_wq23:05:123
24200992830,282cyclictest28322-21kworker/u16:2+efi_rts_wq21:24:401
24199992830,282cyclictest1513-21kworker/u16:1+efi_rts_wq23:30:140
24200992820,281cyclictest23926-21kworker/u16:0+efi_rts_wq20:15:111
24199992810,280cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:110
24201992790,278cyclictest28322-21kworker/u16:2+efi_rts_wq20:40:112
24201992780,277cyclictest2489-21kworker/u16:3+efi_rts_wq22:54:582
24200992780,277cyclictest28322-21kworker/u16:2+efi_rts_wq19:54:211
24201992770,276cyclictest31354-21kworker/u16:1+efi_rts_wq22:44:562
24201992770,276cyclictest28322-21kworker/u16:2+efi_rts_wq19:40:122
24201992770,276cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:012
24200992770,276cyclictest26302-21kworker/u16:0+efi_rts_wq00:30:131
24199992770,276cyclictest23926-21kworker/u16:0+efi_rts_wq19:50:140
24199992770,276cyclictest1513-21kworker/u16:1+efi_rts_wq23:50:120
24202992760,275cyclictest2489-21kworker/u16:3+efi_rts_wq22:30:123
24202992760,274cyclictest2489-21kworker/u16:3+efi_rts_wq22:50:133
24201992750,274cyclictest23926-21kworker/u16:0+efi_rts_wq20:55:132
24200992740,273cyclictest28322-21kworker/u16:2+efi_rts_wq20:30:141
24199992740,273cyclictest2489-21kworker/u16:3+efi_rts_wq22:34:530
24202992730,272cyclictest1513-21kworker/u16:1+efi_rts_wq00:20:123
24200992730,272cyclictest28322-21kworker/u16:2+efi_rts_wq19:10:211
24199992730,272cyclictest26302-21kworker/u16:0+efi_rts_wq00:00:120
24199992730,272cyclictest23926-21kworker/u16:0+efi_rts_wq21:45:120
24202992710,270cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:073
24202992710,268cyclictest23926-21kworker/u16:0+efi_rts_wq22:00:123
24201992710,270cyclictest31354-21kworker/u16:1+efi_rts_wq22:14:482
24202992700,269cyclictest28322-21kworker/u16:2+efi_rts_wq21:30:123
24202992690,268cyclictest31354-21kworker/u16:1+efi_rts_wq22:15:143
24200992680,267cyclictest1513-21kworker/u16:1+efi_rts_wq23:55:121
24199992680,267cyclictest1513-21kworker/u16:1+efi_rts_wq00:10:140
24200992660,265cyclictest28322-21kworker/u16:2+efi_rts_wq20:39:311
24201992650,264cyclictest1513-21kworker/u16:1+efi_rts_wq23:55:122
24201992610,260cyclictest23926-21kworker/u16:0+efi_rts_wq21:05:142
24199992610,260cyclictest26302-21kworker/u16:0+efi_rts_wq23:25:110
24202992570,256cyclictest28322-21kworker/u16:2+efi_rts_wq19:35:143
24202992570,255cyclictest2489-21kworker/u16:3+efi_rts_wq22:40:123
24202992550,254cyclictest28322-21kworker/u16:2+efi_rts_wq19:15:123
24202992550,254cyclictest23926-21kworker/u16:0+efi_rts_wq20:34:303
24199992550,254cyclictest28322-21kworker/u16:2+efi_rts_wq19:55:130
24201992530,252cyclictest23926-21kworker/u16:0+efi_rts_wq21:10:122
24199992510,250cyclictest2489-21kworker/u16:3+efi_rts_wq22:50:140
24202992500,249cyclictest1513-21kworker/u16:1+efi_rts_wq00:01:033
24202992480,247cyclictest23926-21kworker/u16:0+efi_rts_wq20:45:113
24199992480,247cyclictest23926-21kworker/u16:0+efi_rts_wq20:35:100
24200992470,246cyclictest28322-21kworker/u16:2+efi_rts_wq21:00:111
24200992460,245cyclictest23926-21kworker/u16:0+efi_rts_wq21:40:131
24202992420,241cyclictest1513-21kworker/u16:1+efi_rts_wq00:25:133
24200992420,241cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:111
24202992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:123
24202992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:113
24199992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq20:00:130
24202992370,236cyclictest26302-21kworker/u16:0+efi_rts_wq00:15:113
24200992370,236cyclictest28322-21kworker/u16:2+efi_rts_wq21:35:131
24200992370,236cyclictest1513-21kworker/u16:1+efi_rts_wq00:36:091
24200992350,234cyclictest26302-21kworker/u16:0+efi_rts_wq23:45:121
24201992340,233cyclictest1513-21kworker/u16:1+efi_rts_wq23:35:052
24199992330,231cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:120
24199992330,231cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:110
24199992300,229cyclictest26302-21kworker/u16:0+efi_rts_wq23:35:130
24201992290,228cyclictest26302-21kworker/u16:0+efi_rts_wq23:20:132
24200992270,225cyclictest2489-21kworker/u16:3+efi_rts_wq22:55:121
24202992230,222cyclictest2489-21kworker/u16:3+efi_rts_wq22:55:123
24199992220,221cyclictest28322-21kworker/u16:2+efi_rts_wq20:19:260
24199992220,221cyclictest23926-21kworker/u16:0+efi_rts_wq21:30:130
24201992210,220cyclictest31354-21kworker/u16:1+efi_rts_wq22:09:482
24200992210,220cyclictest28322-21kworker/u16:2+efi_rts_wq20:54:341
24201992200,219cyclictest23926-21kworker/u16:0+efi_rts_wq19:55:132
24202992180,217cyclictest23926-21kworker/u16:0+efi_rts_wq21:14:373
24201992150,214cyclictest28322-21kworker/u16:2+efi_rts_wq21:00:112
24200992130,212cyclictest31354-21kworker/u16:1+efi_rts_wq22:19:491
24202992120,211cyclictest23926-21kworker/u16:0+efi_rts_wq19:49:213
24200992120,211cyclictest1513-21kworker/u16:1+efi_rts_wq00:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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