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2026-06-24 - 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 Wed Jun 24, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303982319312,5sleep30-21swapper/307:07:533
303782318304,4sleep00-21swapper/007:07:380
302782317310,5sleep20-21swapper/207:06:252
302722316308,5sleep10-21swapper/107:06:201
30826992980,297cyclictest24114-21kworker/u16:1+efi_rts_wq09:25:112
30824992980,297cyclictest3652-21kworker/u16:3+efi_rts_wq09:20:130
30824992970,296cyclictest24114-21kworker/u16:1+efi_rts_wq09:36:530
30827992960,295cyclictest24114-21kworker/u16:1+efi_rts_wq08:55:123
30824992960,295cyclictest3652-21kworker/u16:3+efi_rts_wq07:15:110
30826992930,292cyclictest3652-21kworker/u16:3+efi_rts_wq07:30:122
30824992930,292cyclictest3652-21kworker/u16:3+efi_rts_wq07:10:130
30826992910,290cyclictest10302-21kworker/u16:1+efi_rts_wq11:25:112
30825992910,290cyclictest24114-21kworker/u16:1+efi_rts_wq08:31:421
30825992910,290cyclictest24114-21kworker/u16:1+efi_rts_wq07:20:111
30825992900,289cyclictest24114-21kworker/u16:1+efi_rts_wq08:05:141
30824992900,289cyclictest24114-21kworker/u16:1+efi_rts_wq09:25:100
30824992890,288cyclictest24114-21kworker/u16:1+efi_rts_wq10:12:010
30824992890,287cyclictest24114-21kworker/u16:1+efi_rts_wq10:35:120
30824992890,287cyclictest24114-21kworker/u16:1+efi_rts_wq10:35:120
30826992860,285cyclictest19245-21kworker/u16:3+efi_rts_wq11:55:112
30826992850,284cyclictest3652-21kworker/u16:3+efi_rts_wq07:15:012
30825992850,284cyclictest24114-21kworker/u16:1+efi_rts_wq07:45:111
30827992840,283cyclictest24114-21kworker/u16:1+efi_rts_wq08:25:143
30825992840,283cyclictest10302-21kworker/u16:1+efi_rts_wq12:35:111
30827992830,282cyclictest24114-21kworker/u16:1+efi_rts_wq09:45:133
30827992830,281cyclictest24114-21kworker/u16:1+efi_rts_wq10:40:133
30825992830,282cyclictest10302-21kworker/u16:1+efi_rts_wq11:35:131
30827992820,281cyclictest19245-21kworker/u16:3+efi_rts_wq11:40:143
30826992820,281cyclictest3652-21kworker/u16:3+efi_rts_wq09:20:142
30824992820,281cyclictest24114-21kworker/u16:1+efi_rts_wq08:11:380
30825992810,280cyclictest24114-21kworker/u16:1+efi_rts_wq10:25:111
30825992800,279cyclictest3652-21kworker/u16:3+efi_rts_wq10:42:061
30826992790,278cyclictest3652-21kworker/u16:3+efi_rts_wq09:40:122
30826992790,278cyclictest24114-21kworker/u16:1+efi_rts_wq07:21:282
30825992770,276cyclictest24114-21kworker/u16:1+efi_rts_wq09:45:121
30827992760,275cyclictest24114-21kworker/u16:1+efi_rts_wq09:35:153
30825992760,275cyclictest3652-21kworker/u16:3+efi_rts_wq08:00:121
30825992760,275cyclictest24114-21kworker/u16:1+efi_rts_wq07:35:131
30827992750,274cyclictest24114-21kworker/u16:1+efi_rts_wq08:45:133
30825992750,274cyclictest10302-21kworker/u16:1+efi_rts_wq11:45:121
30827992740,273cyclictest19245-21kworker/u16:3+efi_rts_wq12:25:113
30826992740,273cyclictest3652-21kworker/u16:3+efi_rts_wq09:16:512
30826992740,273cyclictest3652-21kworker/u16:3+efi_rts_wq08:20:122
30824992740,273cyclictest3652-21kworker/u16:3+efi_rts_wq09:51:560
30827992710,270cyclictest19245-21kworker/u16:3+efi_rts_wq12:05:133
30825992710,270cyclictest3652-21kworker/u16:3+efi_rts_wq08:50:121
30825992700,269cyclictest24114-21kworker/u16:1+efi_rts_wq09:01:471
30827992690,268cyclictest3652-21kworker/u16:3+efi_rts_wq08:15:133
30824992690,268cyclictest10302-21kworker/u16:1+efi_rts_wq11:52:210
30827992680,267cyclictest24114-21kworker/u16:1+efi_rts_wq08:06:383
30825992680,267cyclictest3652-21kworker/u16:3+efi_rts_wq09:31:521
30825992680,267cyclictest3652-21kworker/u16:3+efi_rts_wq09:05:131
30825992680,267cyclictest24114-21kworker/u16:1+efi_rts_wq08:35:141
30825992680,267cyclictest19245-21kworker/u16:3+efi_rts_wq12:07:231
30826992670,266cyclictest3652-21kworker/u16:3+efi_rts_wq11:15:132
30825992670,266cyclictest3652-21kworker/u16:3+efi_rts_wq07:15:011
30825992660,265cyclictest24114-21kworker/u16:1+efi_rts_wq10:30:131
30826992650,264cyclictest19245-21kworker/u16:3+efi_rts_wq11:50:102
30826992650,264cyclictest10302-21kworker/u16:1+efi_rts_wq12:20:122
30825992650,264cyclictest3652-21kworker/u16:3+efi_rts_wq08:21:401
30824992650,264cyclictest24114-21kworker/u16:1+efi_rts_wq09:15:130
30825992630,262cyclictest24114-21kworker/u16:1+efi_rts_wq09:10:111
30824992630,262cyclictest24114-21kworker/u16:1+efi_rts_wq09:56:570
30826992610,260cyclictest3652-21kworker/u16:3+efi_rts_wq07:25:122
30824992610,260cyclictest10302-21kworker/u16:1+efi_rts_wq11:35:140
30824992610,258cyclictest24114-21kworker/u16:1+efi_rts_wq10:30:140
30827992600,259cyclictest3652-21kworker/u16:3+efi_rts_wq09:05:143
30826992570,255cyclictest24114-21kworker/u16:1+efi_rts_wq10:40:132
30827992560,255cyclictest3652-21kworker/u16:3+efi_rts_wq10:17:033
30825992560,255cyclictest24114-21kworker/u16:1+efi_rts_wq09:55:131
30824992560,255cyclictest10302-21kworker/u16:1+efi_rts_wq11:42:190
30827992550,254cyclictest3652-21kworker/u16:3+efi_rts_wq11:05:123
30827992530,252cyclictest24114-21kworker/u16:1+efi_rts_wq10:45:113
30827992530,252cyclictest24114-21kworker/u16:1+efi_rts_wq08:40:113
30825992530,252cyclictest24114-21kworker/u16:1+efi_rts_wq10:05:131
30825992520,251cyclictest3652-21kworker/u16:3+efi_rts_wq11:15:131
30824992510,250cyclictest3652-21kworker/u16:3+efi_rts_wq07:26:290
30824992510,250cyclictest24114-21kworker/u16:1+efi_rts_wq08:41:440
30825992480,247cyclictest24114-21kworker/u16:1+efi_rts_wq07:40:131
30824992480,247cyclictest24114-21kworker/u16:1+efi_rts_wq09:00:110
30824992470,246cyclictest10302-21kworker/u16:1+efi_rts_wq11:45:120
30824992460,245cyclictest24114-21kworker/u16:1+efi_rts_wq07:45:110
30824992460,245cyclictest19245-21kworker/u16:3+efi_rts_wq12:05:140
30827992450,244cyclictest3652-21kworker/u16:3+efi_rts_wq10:37:063
30827992450,244cyclictest3652-21kworker/u16:3+efi_rts_wq10:37:053
30825992430,242cyclictest19245-21kworker/u16:3+efi_rts_wq11:50:101
30827992410,240cyclictest3652-21kworker/u16:3+efi_rts_wq07:51:343
30826992390,238cyclictest24621-21kworker/u16:2+efi_rts_wq11:20:122
30824992390,238cyclictest24114-21kworker/u16:1+efi_rts_wq07:55:100
30826992380,237cyclictest3652-21kworker/u16:3+efi_rts_wq10:20:112
30827992340,233cyclictest24114-21kworker/u16:1+efi_rts_wq07:56:363
30824992340,233cyclictest3652-21kworker/u16:3+efi_rts_wq11:10:120
30824992330,232cyclictest10302-21kworker/u16:1+efi_rts_wq12:22:260
30827992310,230cyclictest24114-21kworker/u16:1+efi_rts_wq10:07:013
30824992310,230cyclictest24114-21kworker/u16:1+efi_rts_wq08:30:110
30824992310,230cyclictest10302-21kworker/u16:1+efi_rts_wq11:57:220
30827992280,227cyclictest3652-21kworker/u16:3+efi_rts_wq07:15:123
30825992280,227cyclictest3652-21kworker/u16:3+efi_rts_wq07:50:111
30824992270,224cyclictest3652-21kworker/u16:3+efi_rts_wq10:15:110
30826992250,224cyclictest3652-21kworker/u16:3+efi_rts_wq10:01:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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