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2026-04-02 - 23:40

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 Thu Apr 02, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241242340305,4sleep30-21swapper/307:09:313
239912337315,4sleep10-21swapper/107:07:491
24430993220,319cyclictest1216-21kworker/u16:3+efi_rts_wq09:15:113
238082319304,5sleep20-21swapper/207:05:262
24429993140,313cyclictest20036-21kworker/u16:0+efi_rts_wq12:03:442
238832314306,5sleep00-21swapper/007:06:240
24430993130,312cyclictest25755-21kworker/u16:0+efi_rts_wq07:15:093
24430993130,312cyclictest20473-21kworker/u16:1+efi_rts_wq08:35:123
24425993130,312cyclictest1216-21kworker/u16:3+efi_rts_wq10:08:221
24430993110,310cyclictest20473-21kworker/u16:1+efi_rts_wq07:45:093
24425993110,310cyclictest20473-21kworker/u16:1+efi_rts_wq10:10:121
24425993110,310cyclictest20473-21kworker/u16:1+efi_rts_wq10:00:111
24430993090,308cyclictest1216-21kworker/u16:3+efi_rts_wq08:25:123
24429993080,307cyclictest1216-21kworker/u16:3+efi_rts_wq09:25:132
24430993070,306cyclictest20473-21kworker/u16:1+efi_rts_wq09:30:113
24430993070,306cyclictest20473-21kworker/u16:1+efi_rts_wq09:30:113
24425993070,306cyclictest20473-21kworker/u16:1+efi_rts_wq09:10:131
24421993061,304cyclictest32018-21kworker/u16:3+efi_rts_wq11:28:370
24430993050,304cyclictest20473-21kworker/u16:1+efi_rts_wq09:20:123
24429993030,301cyclictest7889-21kworker/u16:0+efi_rts_wq10:45:122
24430993020,299cyclictest20473-21kworker/u16:1+efi_rts_wq07:55:093
24429993020,301cyclictest1216-21kworker/u16:3+efi_rts_wq10:05:122
24429993010,300cyclictest20473-21kworker/u16:1+efi_rts_wq08:45:122
24429993010,300cyclictest20473-21kworker/u16:1+efi_rts_wq08:07:582
24425992990,298cyclictest20473-21kworker/u16:1+efi_rts_wq09:50:111
24430992980,297cyclictest8762-21kworker/u16:1+efi_rts_wq12:00:133
24425992980,297cyclictest25755-21kworker/u16:0+efi_rts_wq08:02:581
24425992940,293cyclictest1216-21kworker/u16:3+efi_rts_wq09:40:121
24429992920,291cyclictest20036-21kworker/u16:0+efi_rts_wq12:10:112
24425992920,290cyclictest1216-21kworker/u16:3+efi_rts_wq09:55:111
24429992910,290cyclictest20473-21kworker/u16:1+efi_rts_wq08:15:102
24421992900,289cyclictest8762-21kworker/u16:1+efi_rts_wq11:40:130
24425992880,287cyclictest32018-21kworker/u16:3+efi_rts_wq11:13:341
24430992870,286cyclictest8762-21kworker/u16:1+efi_rts_wq12:18:443
24430992870,286cyclictest7889-21kworker/u16:0+efi_rts_wq10:40:113
24425992870,286cyclictest8762-21kworker/u16:1+efi_rts_wq11:50:121
24430992860,285cyclictest8762-21kworker/u16:1+efi_rts_wq11:55:133
24425992860,285cyclictest20473-21kworker/u16:1+efi_rts_wq07:25:091
24430992840,283cyclictest20473-21kworker/u16:1+efi_rts_wq09:13:123
24425992830,282cyclictest25755-21kworker/u16:0+efi_rts_wq07:52:561
24425992830,282cyclictest1216-21kworker/u16:3+efi_rts_wq08:13:001
24425992820,281cyclictest20036-21kworker/u16:0+efi_rts_wq11:58:421
24429992800,279cyclictest20473-21kworker/u16:1+efi_rts_wq10:53:302
24430992790,278cyclictest1216-21kworker/u16:3+efi_rts_wq08:50:133
24430992780,277cyclictest32018-21kworker/u16:3+efi_rts_wq11:45:123
24421992780,277cyclictest20473-21kworker/u16:1+efi_rts_wq10:58:310
24421992770,276cyclictest20473-21kworker/u16:1+efi_rts_wq08:48:060
24425992750,274cyclictest7889-21kworker/u16:0+efi_rts_wq11:15:111
24421992740,273cyclictest8762-21kworker/u16:1+efi_rts_wq12:05:140
24425992730,272cyclictest1216-21kworker/u16:3+efi_rts_wq10:15:141
24425992730,272cyclictest1216-21kworker/u16:3+efi_rts_wq09:25:141
24425992720,271cyclictest20473-21kworker/u16:1+efi_rts_wq08:30:131
24429992710,270cyclictest20473-21kworker/u16:1+efi_rts_wq08:23:022
24429992710,270cyclictest1216-21kworker/u16:3+efi_rts_wq08:40:132
24421992710,270cyclictest7889-21kworker/u16:0+efi_rts_wq10:50:120
24430992700,269cyclictest20473-21kworker/u16:1+efi_rts_wq10:10:133
24429992700,267cyclictest8762-21kworker/u16:1+efi_rts_wq12:35:122
24430992680,267cyclictest20473-21kworker/u16:1+efi_rts_wq10:03:223
24425992680,267cyclictest8762-21kworker/u16:1+efi_rts_wq12:30:121
24425992680,267cyclictest32018-21kworker/u16:3+efi_rts_wq11:25:121
24429992670,266cyclictest20473-21kworker/u16:1+efi_rts_wq07:25:092
24425992670,266cyclictest1216-21kworker/u16:3+efi_rts_wq10:23:251
24425992650,264cyclictest32018-21kworker/u16:3+efi_rts_wq11:08:341
24430992640,263cyclictest20473-21kworker/u16:1+efi_rts_wq10:35:123
24430992640,263cyclictest1216-21kworker/u16:3+efi_rts_wq08:10:123
24425992620,261cyclictest20473-21kworker/u16:1+efi_rts_wq08:18:001
24425992610,260cyclictest20473-21kworker/u16:1+efi_rts_wq07:35:091
24421992610,260cyclictest7889-21kworker/u16:0+efi_rts_wq11:20:130
24421992600,259cyclictest1216-21kworker/u16:3+efi_rts_wq10:20:110
24429992590,258cyclictest20473-21kworker/u16:1+efi_rts_wq09:30:122
24429992590,258cyclictest20473-21kworker/u16:1+efi_rts_wq09:30:112
24430992580,257cyclictest8762-21kworker/u16:1+efi_rts_wq11:30:123
24430992570,256cyclictest20036-21kworker/u16:0+efi_rts_wq12:13:453
24430992570,256cyclictest1216-21kworker/u16:3+efi_rts_wq09:08:103
24429992560,255cyclictest32018-21kworker/u16:3+efi_rts_wq11:35:122
24429992560,255cyclictest29319-21kworker/u16:2+efi_rts_wq11:10:112
24430992530,249cyclictest8762-21kworker/u16:1+efi_rts_wq11:40:123
24425992530,252cyclictest20473-21kworker/u16:1+efi_rts_wq10:25:131
24425992530,252cyclictest1216-21kworker/u16:3+efi_rts_wq08:53:071
24430992520,251cyclictest7889-21kworker/u16:0+efi_rts_wq11:00:133
24430992520,251cyclictest20473-21kworker/u16:1+efi_rts_wq09:00:133
24429992510,250cyclictest20473-21kworker/u16:1+efi_rts_wq10:55:132
24421992510,250cyclictest1216-21kworker/u16:3+efi_rts_wq10:30:100
24425992500,249cyclictest20473-21kworker/u16:1+efi_rts_wq07:57:561
24429992490,248cyclictest1216-21kworker/u16:3+efi_rts_wq09:40:122
24430992480,247cyclictest25755-21kworker/u16:0+efi_rts_wq07:32:523
24430992480,246cyclictest7889-21kworker/u16:0+efi_rts_wq10:50:123
24429992480,247cyclictest1216-21kworker/u16:3+efi_rts_wq09:05:122
24421992480,247cyclictest7889-21kworker/u16:0+efi_rts_wq10:38:280
24425992470,246cyclictest7889-21kworker/u16:0+efi_rts_wq10:43:281
24430992460,245cyclictest20473-21kworker/u16:1+efi_rts_wq08:15:103
24430992460,245cyclictest20036-21kworker/u16:0+efi_rts_wq12:20:123
24425992460,245cyclictest8762-21kworker/u16:1+efi_rts_wq12:25:101
24430992450,242cyclictest20473-21kworker/u16:1+efi_rts_wq11:05:133
24429992420,241cyclictest20473-21kworker/u16:1+efi_rts_wq09:45:112
24429992410,240cyclictest7889-21kworker/u16:0+efi_rts_wq11:23:372
24425992370,236cyclictest20473-21kworker/u16:1+efi_rts_wq07:45:081
24425992370,236cyclictest1216-21kworker/u16:3+efi_rts_wq10:30:111
24425992350,234cyclictest1216-21kworker/u16:3+efi_rts_wq08:25:121
24429992320,231cyclictest25755-21kworker/u16:0+efi_rts_wq07:15:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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