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2026-07-16 - 22:02

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 Jul 16, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89632320307,4sleep30-21swapper/307:09:143
87542316309,4sleep20-21swapper/207:06:332
87922315307,5sleep00-21swapper/007:07:020
86912313307,4sleep10-21swapper/107:05:431
9288993010,300cyclictest1014-21kworker/u16:0+efi_rts_wq10:45:121
9289992970,296cyclictest27870-21kworker/u16:1+efi_rts_wq12:18:252
9290992960,295cyclictest30854-21kworker/u16:1+efi_rts_wq10:43:093
9290992960,295cyclictest30854-21kworker/u16:1+efi_rts_wq10:43:093
9288992940,293cyclictest11132-21kworker/u16:2+efi_rts_wq10:28:061
9287992940,293cyclictest20760-21kworker/u16:3+efi_rts_wq07:45:120
9290992930,292cyclictest11132-21kworker/u16:2+efi_rts_wq10:05:113
9287992930,292cyclictest27870-21kworker/u16:1+efi_rts_wq12:30:110
9287992920,291cyclictest11426-21kworker/u16:2+efi_rts_wq11:10:130
9290992890,288cyclictest20760-21kworker/u16:3+efi_rts_wq07:55:153
9289992890,288cyclictest27870-21kworker/u16:1+efi_rts_wq12:35:132
9287992890,288cyclictest27870-21kworker/u16:1+efi_rts_wq12:15:120
9290992880,287cyclictest11132-21kworker/u16:2+efi_rts_wq07:20:153
9287992880,287cyclictest32654-21kworker/u16:3+efi_rts_wq11:58:210
9289992870,286cyclictest1014-21kworker/u16:0+efi_rts_wq10:45:112
9287992870,285cyclictest11132-21kworker/u16:2+efi_rts_wq10:05:130
9289992850,284cyclictest27870-21kworker/u16:1+efi_rts_wq11:48:182
9289992850,284cyclictest11426-21kworker/u16:2+efi_rts_wq11:05:102
9288992850,284cyclictest11132-21kworker/u16:2+efi_rts_wq09:30:121
9287992850,284cyclictest20760-21kworker/u16:3+efi_rts_wq08:05:130
9290992830,282cyclictest8933-21kworker/u16:3+efi_rts_wq11:18:133
9290992830,282cyclictest32654-21kworker/u16:3+efi_rts_wq12:10:143
9290992830,282cyclictest25600-21kworker/u16:0+efi_rts_wq11:35:113
9288992820,281cyclictest11426-21kworker/u16:2+efi_rts_wq11:10:131
9288992800,279cyclictest20760-21kworker/u16:3+efi_rts_wq10:00:121
9289992790,278cyclictest20760-21kworker/u16:3+efi_rts_wq07:25:132
9287992780,277cyclictest27870-21kworker/u16:1+efi_rts_wq11:45:120
9290992760,275cyclictest32654-21kworker/u16:3+efi_rts_wq11:50:123
9289992760,275cyclictest11132-21kworker/u16:2+efi_rts_wq07:10:132
9290992750,274cyclictest27870-21kworker/u16:1+efi_rts_wq11:33:163
9287992750,274cyclictest32654-21kworker/u16:3+efi_rts_wq12:25:120
9287992750,274cyclictest11426-21kworker/u16:2+efi_rts_wq11:15:120
9287992750,274cyclictest11132-21kworker/u16:2+efi_rts_wq10:30:120
9288992740,273cyclictest32654-21kworker/u16:3+efi_rts_wq12:05:141
9288992740,273cyclictest11132-21kworker/u16:2+efi_rts_wq08:30:131
9289992720,271cyclictest11132-21kworker/u16:2+efi_rts_wq10:15:122
9290992700,269cyclictest27870-21kworker/u16:1+efi_rts_wq12:23:263
9287992700,268cyclictest20760-21kworker/u16:3+efi_rts_wq07:35:110
9290992690,268cyclictest11132-21kworker/u16:2+efi_rts_wq10:18:053
9289992690,267cyclictest32654-21kworker/u16:3+efi_rts_wq11:55:112
9288992690,268cyclictest20760-21kworker/u16:3+efi_rts_wq09:20:121
9290992680,266cyclictest11426-21kworker/u16:2+efi_rts_wq11:20:133
9289992670,266cyclictest8933-21kworker/u16:3+efi_rts_wq11:25:112
9288992660,265cyclictest11132-21kworker/u16:2+efi_rts_wq08:20:131
9289992650,264cyclictest20760-21kworker/u16:3+efi_rts_wq08:35:122
9289992630,262cyclictest32654-21kworker/u16:3+efi_rts_wq12:10:152
9287992630,262cyclictest8933-21kworker/u16:3+efi_rts_wq11:08:130
9287992630,262cyclictest20760-21kworker/u16:3+efi_rts_wq08:00:130
9288992620,261cyclictest20760-21kworker/u16:3+efi_rts_wq07:25:121
9290992610,260cyclictest30854-21kworker/u16:1+efi_rts_wq10:38:083
9289992610,260cyclictest32654-21kworker/u16:3+efi_rts_wq12:28:272
9287992610,260cyclictest20760-21kworker/u16:3+efi_rts_wq10:35:130
9287992610,260cyclictest11132-21kworker/u16:2+efi_rts_wq07:50:110
9289992600,259cyclictest11132-21kworker/u16:2+efi_rts_wq09:00:132
9288992600,258cyclictest11426-21kworker/u16:2+efi_rts_wq11:20:131
9287992600,259cyclictest30854-21kworker/u16:1+efi_rts_wq10:50:120
9289992590,258cyclictest11132-21kworker/u16:2+efi_rts_wq09:32:582
9287992590,258cyclictest11132-21kworker/u16:2+efi_rts_wq09:15:130
9288992580,257cyclictest20760-21kworker/u16:3+efi_rts_wq09:48:011
9288992580,257cyclictest20760-21kworker/u16:3+efi_rts_wq07:17:311
9289992570,256cyclictest20760-21kworker/u16:3+efi_rts_wq10:10:132
9289992570,256cyclictest20760-21kworker/u16:3+efi_rts_wq08:45:122
9287992570,255cyclictest11426-21kworker/u16:2+efi_rts_wq11:03:130
9287992540,253cyclictest25600-21kworker/u16:0+efi_rts_wq11:35:120
9288992530,252cyclictest20760-21kworker/u16:3+efi_rts_wq08:00:131
9290992520,251cyclictest20760-21kworker/u16:3+efi_rts_wq09:43:003
9287992520,251cyclictest20760-21kworker/u16:3+efi_rts_wq09:40:130
9288992480,247cyclictest32654-21kworker/u16:3+efi_rts_wq11:55:121
9288992480,247cyclictest11132-21kworker/u16:2+efi_rts_wq08:40:141
9287992470,246cyclictest20760-21kworker/u16:3+efi_rts_wq10:20:120
9290992460,245cyclictest11132-21kworker/u16:2+efi_rts_wq07:40:133
9289992460,245cyclictest11132-21kworker/u16:2+efi_rts_wq10:25:132
9289992460,245cyclictest11132-21kworker/u16:2+efi_rts_wq09:35:132
9288992450,244cyclictest8933-21kworker/u16:3+efi_rts_wq11:25:121
9288992440,243cyclictest20760-21kworker/u16:3+efi_rts_wq08:37:481
9288992430,242cyclictest20760-21kworker/u16:3+efi_rts_wq09:07:551
9287992430,241cyclictest20760-21kworker/u16:3+efi_rts_wq07:30:120
9289992420,241cyclictest30854-21kworker/u16:1+efi_rts_wq10:40:132
9289992420,241cyclictest30854-21kworker/u16:1+efi_rts_wq10:40:122
9288992390,238cyclictest20760-21kworker/u16:3+efi_rts_wq08:57:521
9288992380,237cyclictest11132-21kworker/u16:2+efi_rts_wq09:10:121
9287992370,236cyclictest20760-21kworker/u16:3+efi_rts_wq09:58:030
9288992340,233cyclictest30854-21kworker/u16:1+efi_rts_wq10:40:131
9288992340,233cyclictest30854-21kworker/u16:1+efi_rts_wq10:40:121
9287992340,233cyclictest27870-21kworker/u16:1+efi_rts_wq12:00:120
9288992330,232cyclictest11132-21kworker/u16:2+efi_rts_wq10:15:121
9288992320,231cyclictest11426-21kworker/u16:2+efi_rts_wq11:15:111
9287992320,231cyclictest20760-21kworker/u16:3+efi_rts_wq09:27:580
9290992300,229cyclictest11132-21kworker/u16:2+efi_rts_wq08:22:473
9290992290,228cyclictest20760-21kworker/u16:3+efi_rts_wq07:15:123
9290992280,227cyclictest11132-21kworker/u16:2+efi_rts_wq09:50:113
9288992280,227cyclictest27870-21kworker/u16:1+efi_rts_wq11:40:131
9289992270,226cyclictest11132-21kworker/u16:2+efi_rts_wq08:50:112
9290992260,225cyclictest20760-21kworker/u16:3+efi_rts_wq08:55:123
9288992260,225cyclictest32654-21kworker/u16:3+efi_rts_wq12:33:271
9288992230,222cyclictest20760-21kworker/u16:3+efi_rts_wq07:47:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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