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2026-09-23 - 02:45

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 Tue Sep 22, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166872325318,5sleep10-21swapper/107:06:481
166222321311,8sleep30-21swapper/307:05:583
168872318304,5sleep20-21swapper/207:09:212
151052314307,5sleep00-21swapper/007:05:120
17203993080,306cyclictest3225-21kworker/u16:1+efi_rts_wq10:30:182
17203993060,305cyclictest2288-21kworker/u16:0+efi_rts_wq07:20:132
17204993030,302cyclictest3225-21kworker/u16:1+efi_rts_wq09:00:143
17201993030,302cyclictest2288-21kworker/u16:0+efi_rts_wq09:30:160
17202993020,301cyclictest2288-21kworker/u16:0+efi_rts_wq10:05:131
17204993010,300cyclictest2288-21kworker/u16:0+efi_rts_wq09:55:143
17203993000,299cyclictest4105-21kworker/u16:2+efi_rts_wq10:50:182
17202993000,299cyclictest14424-21kworker/u16:3+efi_rts_wq12:15:111
17201993000,299cyclictest3225-21kworker/u16:1+efi_rts_wq08:25:140
17202992990,298cyclictest2288-21kworker/u16:0+efi_rts_wq09:20:141
17201992990,298cyclictest2288-21kworker/u16:0+efi_rts_wq10:27:390
17204992980,297cyclictest3225-21kworker/u16:1+efi_rts_wq08:45:133
17201992980,297cyclictest2288-21kworker/u16:0+efi_rts_wq07:35:140
17201992980,296cyclictest3225-21kworker/u16:1+efi_rts_wq10:30:170
17204992960,295cyclictest28397-21kworker/u16:1+efi_rts_wq11:42:533
17203992960,295cyclictest2288-21kworker/u16:0+efi_rts_wq08:55:132
17203992950,294cyclictest2288-21kworker/u16:0+efi_rts_wq09:45:142
17201992950,293cyclictest2288-21kworker/u16:0+efi_rts_wq08:10:140
17204992940,293cyclictest3225-21kworker/u16:1+efi_rts_wq10:10:163
17202992940,292cyclictest3225-21kworker/u16:1+efi_rts_wq10:40:111
17203992920,291cyclictest14424-21kworker/u16:3+efi_rts_wq12:00:142
17204992910,290cyclictest3225-21kworker/u16:1+efi_rts_wq10:20:143
17204992910,290cyclictest3225-21kworker/u16:1+efi_rts_wq09:05:123
17201992910,290cyclictest3225-21kworker/u16:1+efi_rts_wq08:40:130
17202992900,289cyclictest20883-21kworker/u16:0+efi_rts_wq12:20:111
17201992890,288cyclictest3225-21kworker/u16:1+efi_rts_wq08:52:210
17201992880,287cyclictest3225-21kworker/u16:1+efi_rts_wq10:15:140
17201992880,287cyclictest2288-21kworker/u16:0+efi_rts_wq09:35:140
17201992880,287cyclictest2288-21kworker/u16:0+efi_rts_wq09:35:130
17204992870,284cyclictest2288-21kworker/u16:0+efi_rts_wq07:50:133
17203992870,283cyclictest20883-21kworker/u16:0+efi_rts_wq12:25:122
17202992870,286cyclictest4105-21kworker/u16:2+efi_rts_wq11:10:121
17201992870,285cyclictest28397-21kworker/u16:1+efi_rts_wq11:50:160
17203992860,283cyclictest20883-21kworker/u16:0+efi_rts_wq11:40:142
17202992840,283cyclictest20883-21kworker/u16:0+efi_rts_wq11:25:121
17201992830,282cyclictest14424-21kworker/u16:3+efi_rts_wq12:05:130
17203992810,280cyclictest28397-21kworker/u16:1+efi_rts_wq11:30:122
17201992810,280cyclictest2288-21kworker/u16:0+efi_rts_wq08:02:110
17204992800,279cyclictest4105-21kworker/u16:2+efi_rts_wq11:05:143
17204992800,279cyclictest20883-21kworker/u16:0+efi_rts_wq11:17:483
17203992780,277cyclictest14424-21kworker/u16:3+efi_rts_wq12:18:002
17201992780,277cyclictest3225-21kworker/u16:1+efi_rts_wq10:00:120
17204992750,274cyclictest3225-21kworker/u16:1+efi_rts_wq09:40:113
17202992750,274cyclictest4105-21kworker/u16:2+efi_rts_wq10:55:111
17204992740,273cyclictest3225-21kworker/u16:1+efi_rts_wq10:17:373
17201992730,272cyclictest4105-21kworker/u16:2+efi_rts_wq10:57:440
17201992730,272cyclictest2288-21kworker/u16:0+efi_rts_wq09:27:290
17201992730,272cyclictest2288-21kworker/u16:0+efi_rts_wq08:37:190
17203992720,271cyclictest28397-21kworker/u16:1+efi_rts_wq11:45:142
17203992720,271cyclictest2288-21kworker/u16:0+efi_rts_wq08:00:132
17202992720,271cyclictest3225-21kworker/u16:1+efi_rts_wq10:00:131
17204992700,269cyclictest28397-21kworker/u16:1+efi_rts_wq11:35:123
17202992700,269cyclictest2288-21kworker/u16:0+efi_rts_wq07:15:141
17201992700,269cyclictest2288-21kworker/u16:0+efi_rts_wq09:57:340
17204992690,268cyclictest2288-21kworker/u16:0+efi_rts_wq08:35:133
17201992690,268cyclictest3225-21kworker/u16:1+efi_rts_wq10:22:380
17203992680,267cyclictest2288-21kworker/u16:0+efi_rts_wq08:30:132
17201992680,267cyclictest4105-21kworker/u16:2+efi_rts_wq10:45:130
17203992670,266cyclictest2288-21kworker/u16:0+efi_rts_wq08:12:132
17203992670,266cyclictest2288-21kworker/u16:0+efi_rts_wq08:05:142
17202992650,264cyclictest2288-21kworker/u16:0+efi_rts_wq09:10:141
17204992640,263cyclictest20883-21kworker/u16:0+efi_rts_wq12:07:583
17201992640,263cyclictest20883-21kworker/u16:0+efi_rts_wq11:07:460
17204992630,262cyclictest20883-21kworker/u16:0+efi_rts_wq12:02:573
17203992610,260cyclictest3225-21kworker/u16:1+efi_rts_wq07:27:042
17203992600,259cyclictest3225-21kworker/u16:1+efi_rts_wq07:45:132
17204992590,258cyclictest4105-21kworker/u16:2+efi_rts_wq10:55:113
17201992590,258cyclictest20883-21kworker/u16:0+efi_rts_wq11:32:510
17203992580,257cyclictest3225-21kworker/u16:1+efi_rts_wq08:50:142
17201992580,257cyclictest3225-21kworker/u16:1+efi_rts_wq08:20:110
17201992560,255cyclictest2288-21kworker/u16:0+efi_rts_wq07:47:090
17202992550,254cyclictest28397-21kworker/u16:1+efi_rts_wq11:52:561
17202992550,254cyclictest28397-21kworker/u16:1+efi_rts_wq11:45:141
17201992550,254cyclictest20883-21kworker/u16:0+efi_rts_wq11:47:540
17202992540,253cyclictest4105-21kworker/u16:2+efi_rts_wq10:45:131
17202992540,253cyclictest3225-21kworker/u16:1+efi_rts_wq09:15:151
17203992530,252cyclictest2288-21kworker/u16:0+efi_rts_wq07:12:012
17202992480,247cyclictest28397-21kworker/u16:1+efi_rts_wq11:55:121
17202992470,246cyclictest2288-21kworker/u16:0+efi_rts_wq08:15:141
17202992470,244cyclictest3225-21kworker/u16:1+efi_rts_wq07:25:141
17201992470,246cyclictest2288-21kworker/u16:0+efi_rts_wq09:20:140
17202992460,245cyclictest20883-21kworker/u16:0+efi_rts_wq12:12:591
17203992430,242cyclictest2288-21kworker/u16:0+efi_rts_wq09:17:262
17201992420,241cyclictest14424-21kworker/u16:3+efi_rts_wq12:30:110
17201992410,240cyclictest28397-21kworker/u16:1+efi_rts_wq11:22:490
17202992400,239cyclictest28397-21kworker/u16:1+efi_rts_wq11:20:141
17203992390,238cyclictest3225-21kworker/u16:1+efi_rts_wq07:30:122
17202992310,230cyclictest3225-21kworker/u16:1+efi_rts_wq07:40:111
17204992290,228cyclictest2288-21kworker/u16:0+efi_rts_wq07:55:143
17204992280,227cyclictest2288-21kworker/u16:0+efi_rts_wq09:50:163
17204992280,227cyclictest2288-21kworker/u16:0+efi_rts_wq09:45:133
17204992260,225cyclictest14424-21kworker/u16:3+efi_rts_wq12:10:133
17203992240,223cyclictest28397-21kworker/u16:1+efi_rts_wq11:37:522
17204992230,221cyclictest14424-21kworker/u16:3+efi_rts_wq12:30:123
17203992230,222cyclictest3225-21kworker/u16:1+efi_rts_wq09:12:252
17202992210,220cyclictest3225-21kworker/u16:1+efi_rts_wq08:50:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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