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2026-03-30 - 09:21

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 Mon Mar 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131392331310,4sleep10-21swapper/119:07:291
132882327319,5sleep30-21swapper/319:09:233
130062321314,4sleep20-21swapper/219:05:452
13717993160,313cyclictest25995-21kworker/u16:0+efi_rts_wq21:00:141
13715993150,314cyclictest7277-21kworker/u16:2+efi_rts_wq23:10:120
132472314306,5sleep00-21swapper/019:08:510
13717993130,312cyclictest25551-21kworker/u16:1+efi_rts_wq00:10:141
13715993120,311cyclictest7277-21kworker/u16:2+efi_rts_wq23:35:120
13715993120,311cyclictest19120-21kworker/u16:3+efi_rts_wq00:05:130
13720993110,310cyclictest19120-21kworker/u16:3+efi_rts_wq00:31:153
13720993110,310cyclictest19120-21kworker/u16:3+efi_rts_wq00:05:133
13717993110,310cyclictest20423-21kworker/u16:0+efi_rts_wq21:59:441
13717993100,309cyclictest25995-21kworker/u16:0+efi_rts_wq19:10:121
13720993080,306cyclictest25995-21kworker/u16:0+efi_rts_wq20:05:123
13717993070,306cyclictest10985-21kworker/u16:1+efi_rts_wq19:24:141
13715993070,306cyclictest7277-21kworker/u16:2+efi_rts_wq21:40:120
13720993060,305cyclictest7277-21kworker/u16:2+efi_rts_wq23:00:103
13715993060,305cyclictest7277-21kworker/u16:2+efi_rts_wq21:39:390
13717993050,304cyclictest20423-21kworker/u16:0+efi_rts_wq22:15:141
13715993050,304cyclictest7277-21kworker/u16:2+efi_rts_wq21:50:130
13715993050,304cyclictest25995-21kworker/u16:0+efi_rts_wq20:40:120
13717993040,303cyclictest25995-21kworker/u16:0+efi_rts_wq20:45:131
13720993030,302cyclictest7277-21kworker/u16:2+efi_rts_wq22:40:123
13720993030,302cyclictest20423-21kworker/u16:0+efi_rts_wq22:45:133
13720993030,302cyclictest10985-21kworker/u16:1+efi_rts_wq19:35:133
13720993020,301cyclictest7277-21kworker/u16:2+efi_rts_wq21:55:143
13717993020,301cyclictest25551-21kworker/u16:1+efi_rts_wq23:50:131
13719993010,300cyclictest25995-21kworker/u16:0+efi_rts_wq20:40:112
13720993000,299cyclictest25995-21kworker/u16:0+efi_rts_wq20:55:133
13719993000,299cyclictest20423-21kworker/u16:0+efi_rts_wq22:50:122
13720992990,298cyclictest19120-21kworker/u16:3+efi_rts_wq23:51:073
13717992990,298cyclictest25551-21kworker/u16:1+efi_rts_wq00:00:121
13715992980,297cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:140
13715992980,297cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:130
13715992980,297cyclictest25551-21kworker/u16:1+efi_rts_wq23:40:130
13719992970,296cyclictest25995-21kworker/u16:0+efi_rts_wq19:25:152
13717992970,296cyclictest25995-21kworker/u16:0+efi_rts_wq19:15:011
13720992950,294cyclictest10985-21kworker/u16:1+efi_rts_wq19:40:143
13717992950,294cyclictest25995-21kworker/u16:0+efi_rts_wq20:24:251
13719992940,293cyclictest7277-21kworker/u16:2+efi_rts_wq22:00:122
13719992940,293cyclictest10985-21kworker/u16:1+efi_rts_wq20:35:132
13717992930,292cyclictest25995-21kworker/u16:0+efi_rts_wq20:00:131
13717992920,290cyclictest7277-21kworker/u16:2+efi_rts_wq23:05:121
13717992900,289cyclictest7277-21kworker/u16:2+efi_rts_wq23:30:131
13719992890,288cyclictest7277-21kworker/u16:2+efi_rts_wq22:40:132
13715992880,287cyclictest10985-21kworker/u16:1+efi_rts_wq19:30:100
13720992850,284cyclictest25551-21kworker/u16:1+efi_rts_wq00:01:103
13715992850,284cyclictest7277-21kworker/u16:2+efi_rts_wq21:34:380
13715992830,282cyclictest10985-21kworker/u16:1+efi_rts_wq20:59:310
13720992820,281cyclictest7277-21kworker/u16:2+efi_rts_wq23:14:583
13720992810,280cyclictest7277-21kworker/u16:2+efi_rts_wq23:45:123
13720992810,280cyclictest25995-21kworker/u16:0+efi_rts_wq21:25:173
13717992810,280cyclictest20280-21kworker/u16:3+efi_rts_wq22:55:101
13717992810,280cyclictest10985-21kworker/u16:1+efi_rts_wq19:50:121
13720992790,277cyclictest10985-21kworker/u16:1+efi_rts_wq19:45:143
13715992770,276cyclictest19120-21kworker/u16:3+efi_rts_wq00:26:140
13717992760,273cyclictest7277-21kworker/u16:2+efi_rts_wq23:10:121
13715992760,275cyclictest25995-21kworker/u16:0+efi_rts_wq19:44:160
13715992750,274cyclictest25995-21kworker/u16:0+efi_rts_wq21:09:330
13719992740,273cyclictest10985-21kworker/u16:1+efi_rts_wq19:55:112
13720992720,271cyclictest25995-21kworker/u16:0+efi_rts_wq21:05:143
13717992720,271cyclictest10985-21kworker/u16:1+efi_rts_wq20:29:271
13720992710,269cyclictest25995-21kworker/u16:0+efi_rts_wq20:30:133
13719992710,270cyclictest7277-21kworker/u16:2+efi_rts_wq23:20:132
13719992700,269cyclictest25551-21kworker/u16:1+efi_rts_wq00:10:142
13715992700,269cyclictest25551-21kworker/u16:1+efi_rts_wq23:50:130
13719992690,268cyclictest25995-21kworker/u16:0+efi_rts_wq21:19:362
13717992690,268cyclictest10985-21kworker/u16:1+efi_rts_wq20:09:231
13715992650,264cyclictest25995-21kworker/u16:0+efi_rts_wq21:20:120
13717992640,263cyclictest25995-21kworker/u16:0+efi_rts_wq20:50:121
13715992630,262cyclictest19120-21kworker/u16:3+efi_rts_wq00:00:120
13715992620,260cyclictest7277-21kworker/u16:2+efi_rts_wq23:20:130
13720992610,260cyclictest7277-21kworker/u16:2+efi_rts_wq23:35:123
13720992570,256cyclictest25995-21kworker/u16:0+efi_rts_wq19:29:153
13715992560,255cyclictest10985-21kworker/u16:1+efi_rts_wq20:25:110
13715992550,254cyclictest25551-21kworker/u16:1+efi_rts_wq23:19:590
13715992530,252cyclictest25551-21kworker/u16:1+efi_rts_wq23:25:120
13720992520,250cyclictest7277-21kworker/u16:2+efi_rts_wq21:35:123
13717992520,251cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:141
13717992520,251cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:131
13720992510,250cyclictest25551-21kworker/u16:1+efi_rts_wq23:30:013
13715992510,250cyclictest25995-21kworker/u16:0+efi_rts_wq20:00:130
13720992490,248cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:133
13720992490,248cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:133
13719992490,248cyclictest25995-21kworker/u16:0+efi_rts_wq19:15:142
13715992490,248cyclictest20423-21kworker/u16:0+efi_rts_wq22:10:120
13720992470,246cyclictest20423-21kworker/u16:0+efi_rts_wq22:50:103
13717992470,246cyclictest20423-21kworker/u16:0+efi_rts_wq21:45:131
13715992470,246cyclictest10985-21kworker/u16:1+efi_rts_wq20:15:130
13715992450,244cyclictest10985-21kworker/u16:1+efi_rts_wq20:45:110
13720992420,241cyclictest25551-21kworker/u16:1+efi_rts_wq00:25:113
13720992420,241cyclictest19120-21kworker/u16:3+efi_rts_wq00:35:123
13720992400,238cyclictest7277-21kworker/u16:2+efi_rts_wq22:05:133
13717992390,238cyclictest10985-21kworker/u16:1+efi_rts_wq20:10:131
13715992380,237cyclictest25551-21kworker/u16:1+efi_rts_wq23:46:060
13717992370,236cyclictest25551-21kworker/u16:1+efi_rts_wq23:55:121
13717992370,236cyclictest10985-21kworker/u16:1+efi_rts_wq19:34:141
13715992360,235cyclictest20423-21kworker/u16:0+efi_rts_wq22:20:120
13719992350,233cyclictest7277-21kworker/u16:2+efi_rts_wq22:59:552
13715992340,233cyclictest20280-21kworker/u16:3+efi_rts_wq22:55:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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