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2026-09-24 - 05:06

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 Sep 24, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62592322314,5sleep00-21swapper/019:07:510
63962317303,4sleep20-21swapper/219:09:382
45892317311,4sleep30-21swapper/319:05:063
62502315308,5sleep10-21swapper/119:07:441
6695993110,308cyclictest22445-21kworker/u16:2+efi_rts_wq00:35:143
6695993100,309cyclictest22445-21kworker/u16:2+efi_rts_wq00:00:123
6695993070,304cyclictest5997-21kworker/u16:1+efi_rts_wq20:50:143
6695993060,305cyclictest5997-21kworker/u16:1+efi_rts_wq22:04:223
6694993060,302cyclictest22445-21kworker/u16:2+efi_rts_wq23:40:152
6695993040,303cyclictest23628-21kworker/u16:0+efi_rts_wq23:56:093
6694993040,303cyclictest2128-21kworker/u16:1+efi_rts_wq19:10:122
6694993030,300cyclictest5997-21kworker/u16:1+efi_rts_wq21:45:132
6693993020,301cyclictest2166-21kworker/u16:0+efi_rts_wq19:15:011
6692993020,301cyclictest28434-21kworker/u16:3+efi_rts_wq23:09:350
6693993010,300cyclictest5997-21kworker/u16:1+efi_rts_wq21:40:121
6692993010,300cyclictest3878-21kworker/u16:2+efi_rts_wq22:00:140
6695992980,297cyclictest3878-21kworker/u16:2+efi_rts_wq21:55:123
6695992980,297cyclictest2166-21kworker/u16:0+efi_rts_wq19:30:153
6694992980,297cyclictest5997-21kworker/u16:1+efi_rts_wq20:54:092
6695992970,296cyclictest2128-21kworker/u16:1+efi_rts_wq19:25:123
6694992960,295cyclictest8450-21kworker/u16:3+efi_rts_wq19:50:132
6694992960,295cyclictest10515-21kworker/u16:1+efi_rts_wq23:20:112
6692992960,295cyclictest28434-21kworker/u16:3+efi_rts_wq23:15:120
6695992950,294cyclictest3878-21kworker/u16:2+efi_rts_wq21:49:213
6695992950,294cyclictest2128-21kworker/u16:1+efi_rts_wq19:35:133
6695992930,292cyclictest5997-21kworker/u16:1+efi_rts_wq22:25:123
6695992920,291cyclictest2166-21kworker/u16:0+efi_rts_wq19:40:143
6694992920,291cyclictest3878-21kworker/u16:2+efi_rts_wq22:29:272
6694992920,291cyclictest2166-21kworker/u16:0+efi_rts_wq19:38:552
6692992920,291cyclictest5997-21kworker/u16:1+efi_rts_wq21:10:150
6695992910,290cyclictest22445-21kworker/u16:2+efi_rts_wq23:45:113
6695992910,290cyclictest2128-21kworker/u16:1+efi_rts_wq19:13:513
6693992911,288cyclictest23628-21kworker/u16:0+efi_rts_wq23:05:131
6694992900,289cyclictest5997-21kworker/u16:1+efi_rts_wq20:55:142
6694992890,288cyclictest5997-21kworker/u16:1+efi_rts_wq22:34:282
6695992880,287cyclictest23628-21kworker/u16:0+efi_rts_wq00:06:113
6695992880,287cyclictest10515-21kworker/u16:1+efi_rts_wq23:20:113
6694992880,287cyclictest23628-21kworker/u16:0+efi_rts_wq22:40:132
6692992880,287cyclictest8450-21kworker/u16:3+efi_rts_wq20:05:170
6692992880,287cyclictest2166-21kworker/u16:0+efi_rts_wq20:00:140
6692992880,287cyclictest2166-21kworker/u16:0+efi_rts_wq19:55:140
6694992870,286cyclictest5997-21kworker/u16:1+efi_rts_wq22:45:122
6693992870,285cyclictest10515-21kworker/u16:1+efi_rts_wq23:20:111
6695992860,285cyclictest28434-21kworker/u16:3+efi_rts_wq23:10:173
6694992850,284cyclictest8450-21kworker/u16:3+efi_rts_wq20:19:032
6693992850,284cyclictest22445-21kworker/u16:2+efi_rts_wq23:50:131
6692992850,284cyclictest5997-21kworker/u16:1+efi_rts_wq20:35:110
6695992840,283cyclictest5997-21kworker/u16:1+efi_rts_wq20:40:123
6694992840,283cyclictest22445-21kworker/u16:2+efi_rts_wq23:50:132
6693992840,283cyclictest5997-21kworker/u16:1+efi_rts_wq22:24:261
6695992830,282cyclictest5997-21kworker/u16:1+efi_rts_wq21:30:183
6695992830,282cyclictest5997-21kworker/u16:1+efi_rts_wq21:30:173
6694992830,282cyclictest8450-21kworker/u16:3+efi_rts_wq19:45:152
6694992820,281cyclictest5997-21kworker/u16:1+efi_rts_wq21:05:142
6695992790,278cyclictest3878-21kworker/u16:2+efi_rts_wq21:50:163
6695992790,278cyclictest28434-21kworker/u16:3+efi_rts_wq23:00:133
6694992790,277cyclictest28434-21kworker/u16:3+efi_rts_wq22:39:292
6694992780,277cyclictest22445-21kworker/u16:2+efi_rts_wq00:11:122
6693992780,277cyclictest23628-21kworker/u16:0+efi_rts_wq00:10:101
6695992770,276cyclictest3878-21kworker/u16:2+efi_rts_wq22:15:153
6695992770,276cyclictest3878-21kworker/u16:2+efi_rts_wq21:20:133
6694992770,276cyclictest3878-21kworker/u16:2+efi_rts_wq22:10:182
6694992760,275cyclictest8450-21kworker/u16:3+efi_rts_wq20:25:122
6694992760,275cyclictest22445-21kworker/u16:2+efi_rts_wq00:00:122
6692992760,275cyclictest8450-21kworker/u16:3+efi_rts_wq19:20:130
6695992750,274cyclictest5997-21kworker/u16:1+efi_rts_wq20:59:103
6695992740,273cyclictest5997-21kworker/u16:1+efi_rts_wq22:05:123
6695992740,273cyclictest22445-21kworker/u16:2+efi_rts_wq23:51:083
6692992740,273cyclictest5997-21kworker/u16:1+efi_rts_wq21:00:100
6692992720,271cyclictest22445-21kworker/u16:2+efi_rts_wq23:34:400
6693992700,269cyclictest8450-21kworker/u16:3+efi_rts_wq20:45:111
6695992680,267cyclictest8450-21kworker/u16:3+efi_rts_wq20:20:123
6695992670,266cyclictest2166-21kworker/u16:0+efi_rts_wq19:15:003
6694992670,265cyclictest3878-21kworker/u16:2+efi_rts_wq21:15:122
6692992640,263cyclictest10515-21kworker/u16:1+efi_rts_wq23:10:180
6695992630,262cyclictest5997-21kworker/u16:1+efi_rts_wq22:30:133
6692992630,262cyclictest5997-21kworker/u16:1+efi_rts_wq22:20:120
6692992630,262cyclictest3878-21kworker/u16:2+efi_rts_wq21:20:130
6694992610,260cyclictest22445-21kworker/u16:2+efi_rts_wq00:20:122
6695992600,259cyclictest28434-21kworker/u16:3+efi_rts_wq23:30:123
6693992600,259cyclictest3878-21kworker/u16:2+efi_rts_wq21:25:131
6695992590,258cyclictest5997-21kworker/u16:1+efi_rts_wq21:25:133
6695992560,255cyclictest5997-21kworker/u16:1+efi_rts_wq21:35:133
6695992560,255cyclictest2166-21kworker/u16:0+efi_rts_wq19:55:133
6692992560,255cyclictest23628-21kworker/u16:0+efi_rts_wq23:55:120
6692992550,254cyclictest13660-21kworker/u16:1+efi_rts_wq00:31:160
6694992520,251cyclictest5997-21kworker/u16:1+efi_rts_wq21:00:102
6695992510,250cyclictest2166-21kworker/u16:0+efi_rts_wq20:15:143
6694992470,246cyclictest22445-21kworker/u16:2+efi_rts_wq00:36:172
6693992460,245cyclictest10515-21kworker/u16:1+efi_rts_wq23:10:171
6695992450,244cyclictest23628-21kworker/u16:0+efi_rts_wq22:50:173
6694992450,244cyclictest13660-21kworker/u16:1+efi_rts_wq00:25:132
6694992420,241cyclictest5997-21kworker/u16:1+efi_rts_wq20:35:112
6694992410,239cyclictest2128-21kworker/u16:1+efi_rts_wq19:15:132
6693992400,239cyclictest22445-21kworker/u16:2+efi_rts_wq23:35:141
6695992390,238cyclictest5997-21kworker/u16:1+efi_rts_wq21:10:153
6694992360,235cyclictest23628-21kworker/u16:0+efi_rts_wq00:05:142
6695992330,232cyclictest23628-21kworker/u16:0+efi_rts_wq23:05:133
6694992330,232cyclictest3878-21kworker/u16:2+efi_rts_wq21:25:132
6695992300,229cyclictest28434-21kworker/u16:3+efi_rts_wq23:25:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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