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2026-06-30 - 13:21

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 Tue Jun 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58472326303,5sleep30-21swapper/319:08:423
56072318310,5sleep20-21swapper/219:05:382
57082315309,4sleep10-21swapper/119:06:571
56602315308,5sleep00-21swapper/019:06:200
6214993010,300cyclictest26533-21kworker/u16:0+efi_rts_wq22:50:142
6215993000,299cyclictest11042-21kworker/u16:3+efi_rts_wq22:55:133
6214993000,299cyclictest3736-21kworker/u16:2+efi_rts_wq00:00:102
6214993000,299cyclictest11042-21kworker/u16:3+efi_rts_wq23:30:102
6214992990,298cyclictest11042-21kworker/u16:3+efi_rts_wq21:20:132
6215992980,297cyclictest17010-21kworker/u16:2+efi_rts_wq21:00:133
6215992980,297cyclictest1216-21kworker/u16:1+efi_rts_wq21:50:143
6213992970,296cyclictest31516-21kworker/u16:1+efi_rts_wq00:05:321
6212992970,296cyclictest17010-21kworker/u16:2+efi_rts_wq21:25:020
6212992970,295cyclictest31516-21kworker/u16:1+efi_rts_wq23:50:130
6214992930,292cyclictest17010-21kworker/u16:2+efi_rts_wq20:10:122
6213992930,291cyclictest3736-21kworker/u16:2+efi_rts_wq00:35:131
6212992930,291cyclictest11042-21kworker/u16:3+efi_rts_wq23:55:110
6214992920,291cyclictest11042-21kworker/u16:3+efi_rts_wq19:30:122
6213992920,291cyclictest17010-21kworker/u16:2+efi_rts_wq20:50:141
6213992920,291cyclictest17010-21kworker/u16:2+efi_rts_wq19:24:401
6213992910,290cyclictest17010-21kworker/u16:2+efi_rts_wq20:34:521
6213992910,290cyclictest11042-21kworker/u16:3+efi_rts_wq22:30:131
6213992900,289cyclictest1216-21kworker/u16:1+efi_rts_wq22:20:111
6213992880,287cyclictest11042-21kworker/u16:3+efi_rts_wq21:40:121
6215992860,285cyclictest26533-21kworker/u16:0+efi_rts_wq22:35:153
6212992850,284cyclictest4055-21kworker/u16:1+efi_rts_wq23:15:220
6214992840,283cyclictest11042-21kworker/u16:3+efi_rts_wq21:55:132
6213992840,282cyclictest26533-21kworker/u16:0+efi_rts_wq22:50:151
6213992840,282cyclictest11042-21kworker/u16:3+efi_rts_wq23:00:131
6213992830,282cyclictest11042-21kworker/u16:3+efi_rts_wq23:10:121
6213992820,281cyclictest3736-21kworker/u16:2+efi_rts_wq00:25:361
6213992820,281cyclictest11042-21kworker/u16:3+efi_rts_wq21:30:111
6215992810,280cyclictest11042-21kworker/u16:3+efi_rts_wq22:45:153
6214992810,280cyclictest17010-21kworker/u16:2+efi_rts_wq19:35:132
6214992800,279cyclictest11042-21kworker/u16:3+efi_rts_wq21:25:142
6213992800,279cyclictest11042-21kworker/u16:3+efi_rts_wq22:05:141
6213992800,279cyclictest11042-21kworker/u16:3+efi_rts_wq19:49:461
6215992790,278cyclictest11042-21kworker/u16:3+efi_rts_wq19:45:133
6213992780,277cyclictest17010-21kworker/u16:2+efi_rts_wq21:05:131
6212992780,277cyclictest1216-21kworker/u16:1+efi_rts_wq21:40:030
6215992770,276cyclictest17010-21kworker/u16:2+efi_rts_wq19:40:133
6212992770,276cyclictest17010-21kworker/u16:2+efi_rts_wq20:55:140
6212992750,274cyclictest1216-21kworker/u16:1+efi_rts_wq21:50:120
6213992740,273cyclictest17010-21kworker/u16:2+efi_rts_wq19:55:131
6212992740,273cyclictest19961-21kworker/u16:4+efi_rts_wq23:40:120
6214992730,272cyclictest17010-21kworker/u16:2+efi_rts_wq19:50:122
6213992730,272cyclictest17010-21kworker/u16:2+efi_rts_wq20:14:491
6213992730,272cyclictest17010-21kworker/u16:2+efi_rts_wq20:05:131
6213992730,272cyclictest11042-21kworker/u16:3+efi_rts_wq21:20:001
6213992720,271cyclictest17010-21kworker/u16:2+efi_rts_wq20:39:541
6215992700,269cyclictest11042-21kworker/u16:3+efi_rts_wq23:45:133
6215992690,268cyclictest11042-21kworker/u16:3+efi_rts_wq21:10:133
6215992690,268cyclictest11042-21kworker/u16:3+efi_rts_wq20:59:573
6212992680,267cyclictest11042-21kworker/u16:3+efi_rts_wq20:30:120
6214992670,266cyclictest11042-21kworker/u16:3+efi_rts_wq22:15:122
6215992660,264cyclictest19961-21kworker/u16:4+efi_rts_wq23:40:113
6215992650,264cyclictest26533-21kworker/u16:0+efi_rts_wq22:40:133
6215992650,264cyclictest19961-21kworker/u16:4+efi_rts_wq23:35:283
6213992650,264cyclictest17010-21kworker/u16:2+efi_rts_wq19:25:141
6214992640,263cyclictest17010-21kworker/u16:2+efi_rts_wq20:25:152
6214992640,263cyclictest11042-21kworker/u16:3+efi_rts_wq20:30:122
6212992640,263cyclictest17010-21kworker/u16:2+efi_rts_wq19:19:390
6212992630,262cyclictest3736-21kworker/u16:2+efi_rts_wq00:05:180
6215992620,261cyclictest17010-21kworker/u16:2+efi_rts_wq20:25:143
6214992560,255cyclictest19961-21kworker/u16:4+efi_rts_wq23:35:122
6214992560,255cyclictest11042-21kworker/u16:3+efi_rts_wq22:30:122
6214992560,255cyclictest11042-21kworker/u16:3+efi_rts_wq21:30:122
6214992550,254cyclictest17010-21kworker/u16:2+efi_rts_wq20:54:562
6215992530,252cyclictest17010-21kworker/u16:2+efi_rts_wq21:15:133
6214992490,248cyclictest11042-21kworker/u16:3+efi_rts_wq23:10:122
6212992480,247cyclictest1216-21kworker/u16:1+efi_rts_wq22:05:090
6212992480,247cyclictest1216-21kworker/u16:1+efi_rts_wq21:35:130
6212992460,245cyclictest17010-21kworker/u16:2+efi_rts_wq19:59:460
6213992450,244cyclictest17010-21kworker/u16:2+efi_rts_wq19:35:141
6212992450,244cyclictest17010-21kworker/u16:2+efi_rts_wq20:19:510
6212992440,243cyclictest11042-21kworker/u16:3+efi_rts_wq19:20:130
6213992430,242cyclictest11042-21kworker/u16:3+efi_rts_wq21:50:051
6212992430,242cyclictest31516-21kworker/u16:1+efi_rts_wq00:00:320
6214992410,240cyclictest1216-21kworker/u16:1+efi_rts_wq22:25:132
6214992410,240cyclictest1216-21kworker/u16:1+efi_rts_wq22:25:132
6212992410,239cyclictest11042-21kworker/u16:3+efi_rts_wq23:10:120
6214992390,238cyclictest4055-21kworker/u16:1+efi_rts_wq23:15:132
6212992360,235cyclictest11042-21kworker/u16:3+efi_rts_wq20:45:120
6214992330,232cyclictest19961-21kworker/u16:4+efi_rts_wq23:25:242
6213992330,232cyclictest1216-21kworker/u16:1+efi_rts_wq21:55:071
6213992330,230cyclictest7543-21kworker/u16:2+efi_rts_wq23:05:121
6212992320,231cyclictest17010-21kworker/u16:2+efi_rts_wq21:15:140
6215992310,230cyclictest11042-21kworker/u16:3+efi_rts_wq22:30:133
6215992260,225cyclictest11042-21kworker/u16:3+efi_rts_wq20:09:483
6214992250,224cyclictest17010-21kworker/u16:2+efi_rts_wq19:10:132
6214992240,223cyclictest1216-21kworker/u16:1+efi_rts_wq22:10:122
6215992230,222cyclictest3736-21kworker/u16:2+efi_rts_wq00:35:143
6213992230,222cyclictest31516-21kworker/u16:1+efi_rts_wq00:10:341
6212992230,222cyclictest11042-21kworker/u16:3+efi_rts_wq22:15:130
6215992220,221cyclictest11042-21kworker/u16:3+efi_rts_wq20:00:133
6215992210,220cyclictest31516-21kworker/u16:1+efi_rts_wq00:15:353
6212992180,217cyclictest17010-21kworker/u16:2+efi_rts_wq19:14:380
6212992180,217cyclictest11042-21kworker/u16:3+efi_rts_wq23:20:130
6213992160,215cyclictest17010-21kworker/u16:2+efi_rts_wq19:54:461
6212992150,214cyclictest17010-21kworker/u16:2+efi_rts_wq19:29:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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