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2026-07-12 - 02:35

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 Sat Jul 11, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289772320306,5sleep00-21swapper/007:09:430
289062320306,5sleep10-21swapper/107:08:491
288132320305,5sleep30-21swapper/307:07:373
286672316309,5sleep20-21swapper/207:05:452
29265993010,300cyclictest7103-21kworker/u16:2+efi_rts_wq11:05:141
29266993000,299cyclictest5935-21kworker/u16:0+efi_rts_wq10:15:142
29264993000,299cyclictest7103-21kworker/u16:2+efi_rts_wq10:08:260
29265992990,298cyclictest7103-21kworker/u16:2+efi_rts_wq10:35:141
29265992980,297cyclictest7103-21kworker/u16:2+efi_rts_wq11:35:121
29267992970,296cyclictest22200-21kworker/u16:3+efi_rts_wq09:10:153
29264992960,295cyclictest22200-21kworker/u16:3+efi_rts_wq09:08:140
29266992950,294cyclictest20076-21kworker/u16:1+efi_rts_wq12:25:132
29264992950,294cyclictest8035-21kworker/u16:2+efi_rts_wq07:40:120
29266992940,293cyclictest30990-21kworker/u16:0+efi_rts_wq08:00:122
29265992940,293cyclictest8035-21kworker/u16:2+efi_rts_wq08:05:131
29267992920,291cyclictest22200-21kworker/u16:3+efi_rts_wq09:05:133
29264992920,289cyclictest8035-21kworker/u16:2+efi_rts_wq07:45:150
29264992910,290cyclictest1052-21kworker/u16:3+efi_rts_wq12:00:130
29265992900,289cyclictest20076-21kworker/u16:1+efi_rts_wq12:10:151
29264992900,289cyclictest30990-21kworker/u16:0+efi_rts_wq07:17:530
29267992880,287cyclictest1052-21kworker/u16:3+efi_rts_wq11:38:433
29266992880,287cyclictest1052-21kworker/u16:3+efi_rts_wq12:15:132
29266992870,286cyclictest7103-21kworker/u16:2+efi_rts_wq11:03:362
29266992870,286cyclictest16911-21kworker/u16:1+efi_rts_wq09:35:122
29264992870,286cyclictest29356-21kworker/u16:0+efi_rts_wq11:10:120
29264992860,284cyclictest20076-21kworker/u16:1+efi_rts_wq11:55:130
29265992850,284cyclictest20076-21kworker/u16:1+efi_rts_wq12:03:491
29264992850,284cyclictest7103-21kworker/u16:2+efi_rts_wq09:40:140
29266992840,283cyclictest1052-21kworker/u16:3+efi_rts_wq12:05:142
29265992840,283cyclictest30990-21kworker/u16:0+efi_rts_wq08:15:121
29264992840,283cyclictest16911-21kworker/u16:1+efi_rts_wq09:38:200
29265992830,282cyclictest7103-21kworker/u16:2+efi_rts_wq11:15:141
29267992820,281cyclictest8035-21kworker/u16:2+efi_rts_wq07:30:143
29266992820,281cyclictest22200-21kworker/u16:3+efi_rts_wq08:45:142
29265992800,279cyclictest16911-21kworker/u16:1+efi_rts_wq09:55:131
29265992790,278cyclictest16911-21kworker/u16:1+efi_rts_wq10:00:131
29266992780,277cyclictest7103-21kworker/u16:2+efi_rts_wq09:15:132
29265992780,277cyclictest30990-21kworker/u16:0+efi_rts_wq07:32:561
29265992770,275cyclictest20076-21kworker/u16:1+efi_rts_wq12:20:131
29264992750,274cyclictest7103-21kworker/u16:2+efi_rts_wq10:30:130
29267992740,273cyclictest8035-21kworker/u16:2+efi_rts_wq07:50:133
29266992740,273cyclictest8035-21kworker/u16:2+efi_rts_wq07:10:132
29265992730,272cyclictest5935-21kworker/u16:0+efi_rts_wq10:15:151
29265992730,272cyclictest22200-21kworker/u16:3+efi_rts_wq08:25:121
29264992730,271cyclictest7103-21kworker/u16:2+efi_rts_wq11:05:140
29266992720,271cyclictest7103-21kworker/u16:2+efi_rts_wq11:35:122
29265992700,269cyclictest8035-21kworker/u16:2+efi_rts_wq08:30:131
29265992700,269cyclictest16911-21kworker/u16:1+efi_rts_wq09:33:191
29265992700,268cyclictest14177-21kworker/u16:4+efi_rts_wq10:40:131
29265992690,268cyclictest32721-21kworker/u16:0+efi_rts_wq08:53:111
29265992690,268cyclictest16911-21kworker/u16:1+efi_rts_wq09:43:211
29267992680,267cyclictest8035-21kworker/u16:2+efi_rts_wq07:20:133
29265992680,267cyclictest30990-21kworker/u16:0+efi_rts_wq07:15:141
29265992680,267cyclictest20076-21kworker/u16:1+efi_rts_wq12:25:131
29264992660,265cyclictest7103-21kworker/u16:2+efi_rts_wq09:25:130
29264992640,263cyclictest30990-21kworker/u16:0+efi_rts_wq07:37:570
29264992630,262cyclictest26370-21kworker/u16:1+efi_rts_wq08:40:120
29267992620,261cyclictest7103-21kworker/u16:2+efi_rts_wq09:20:133
29264992620,261cyclictest7103-21kworker/u16:2+efi_rts_wq11:23:410
29264992620,261cyclictest7103-21kworker/u16:2+efi_rts_wq08:58:120
29264992620,261cyclictest1052-21kworker/u16:3+efi_rts_wq12:38:540
29264992610,260cyclictest8035-21kworker/u16:2+efi_rts_wq07:50:140
29267992600,259cyclictest29356-21kworker/u16:0+efi_rts_wq11:10:123
29267992600,259cyclictest1052-21kworker/u16:3+efi_rts_wq11:20:123
29265992600,259cyclictest26370-21kworker/u16:1+efi_rts_wq08:40:131
29265992590,258cyclictest7103-21kworker/u16:2+efi_rts_wq10:10:141
29267992560,255cyclictest1052-21kworker/u16:3+efi_rts_wq12:30:143
29265992550,254cyclictest7103-21kworker/u16:2+efi_rts_wq11:48:451
29265992550,254cyclictest7103-21kworker/u16:2+efi_rts_wq09:15:131
29266992530,252cyclictest7103-21kworker/u16:2+efi_rts_wq11:28:412
29266992530,252cyclictest22200-21kworker/u16:3+efi_rts_wq08:50:132
29267992520,251cyclictest8035-21kworker/u16:2+efi_rts_wq07:47:583
29265992520,251cyclictest22200-21kworker/u16:3+efi_rts_wq09:10:131
29267992510,250cyclictest7103-21kworker/u16:2+efi_rts_wq11:00:123
29264992510,250cyclictest24659-21kworker/u16:1+efi_rts_wq07:12:530
29264992510,248cyclictest7103-21kworker/u16:2+efi_rts_wq11:45:140
29266992500,249cyclictest22200-21kworker/u16:3+efi_rts_wq09:00:142
29265992500,249cyclictest30990-21kworker/u16:0+efi_rts_wq07:27:551
29267992490,248cyclictest8035-21kworker/u16:2+efi_rts_wq07:40:123
29266992450,244cyclictest7103-21kworker/u16:2+efi_rts_wq10:05:142
29266992450,244cyclictest7103-21kworker/u16:2+efi_rts_wq09:45:142
29266992440,243cyclictest14177-21kworker/u16:4+efi_rts_wq10:33:302
29264992440,243cyclictest7103-21kworker/u16:2+efi_rts_wq09:50:130
29266992430,242cyclictest8035-21kworker/u16:2+efi_rts_wq07:55:142
29264992420,241cyclictest32721-21kworker/u16:0+efi_rts_wq08:35:120
29267992400,239cyclictest8035-21kworker/u16:2+efi_rts_wq07:58:003
29266992400,239cyclictest7103-21kworker/u16:2+efi_rts_wq09:30:142
29265992400,239cyclictest16911-21kworker/u16:1+efi_rts_wq09:28:181
29266992390,238cyclictest22200-21kworker/u16:3+efi_rts_wq09:10:142
29265992390,238cyclictest7103-21kworker/u16:2+efi_rts_wq10:58:351
29267992380,235cyclictest1052-21kworker/u16:3+efi_rts_wq12:15:123
29264992370,236cyclictest1052-21kworker/u16:3+efi_rts_wq11:30:150
29266992360,233cyclictest30990-21kworker/u16:0+efi_rts_wq08:15:122
29265992350,234cyclictest7103-21kworker/u16:2+efi_rts_wq10:20:111
29264992350,234cyclictest24834-21kworker/u16:1+efi_rts_wq10:53:340
29266992330,232cyclictest14177-21kworker/u16:4+efi_rts_wq10:40:132
29267992310,230cyclictest8035-21kworker/u16:2+efi_rts_wq07:10:143
29266992300,229cyclictest20076-21kworker/u16:1+efi_rts_wq12:20:132
29265992300,229cyclictest30990-21kworker/u16:0+efi_rts_wq08:13:051
29266992290,228cyclictest30990-21kworker/u16:0+efi_rts_wq07:22:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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