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2026-04-06 - 00:49

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 Sun Apr 05, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281162331324,4sleep30-21swapper/307:09:033
281612319313,4sleep10-21swapper/107:09:371
281602316309,5sleep00-21swapper/007:09:360
281822315308,5sleep20-21swapper/207:09:542
28455993140,313cyclictest8630-21kworker/u16:3+efi_rts_wq10:45:120
28456993120,311cyclictest6329-21kworker/u16:2+efi_rts_wq11:05:121
28455993120,311cyclictest6329-21kworker/u16:2+efi_rts_wq10:57:420
28458993100,309cyclictest29738-21kworker/u16:3+efi_rts_wq12:25:133
28458993100,309cyclictest10700-21kworker/u16:2+efi_rts_wq08:10:143
28456993100,309cyclictest8630-21kworker/u16:3+efi_rts_wq08:45:121
28456993100,307cyclictest8630-21kworker/u16:3+efi_rts_wq10:30:141
28455993080,305cyclictest29738-21kworker/u16:3+efi_rts_wq12:05:140
28458993070,306cyclictest14620-21kworker/u16:0+efi_rts_wq11:32:483
28458993070,306cyclictest1421-21kworker/u16:1+efi_rts_wq09:42:273
28455993070,306cyclictest19684-21kworker/u16:0+efi_rts_wq08:15:110
28455993070,306cyclictest19684-21kworker/u16:0+efi_rts_wq08:12:120
28457993060,305cyclictest1421-21kworker/u16:1+efi_rts_wq09:20:112
28455993060,305cyclictest19684-21kworker/u16:0+efi_rts_wq07:15:140
28458993040,303cyclictest1421-21kworker/u16:1+efi_rts_wq09:55:123
28458993040,303cyclictest1421-21kworker/u16:1+efi_rts_wq09:02:193
28458993040,303cyclictest10700-21kworker/u16:2+efi_rts_wq08:35:143
28456993040,302cyclictest6329-21kworker/u16:2+efi_rts_wq11:10:121
28455993040,303cyclictest1421-21kworker/u16:1+efi_rts_wq09:40:150
28455993040,303cyclictest10700-21kworker/u16:2+efi_rts_wq07:55:130
28455993030,301cyclictest1421-21kworker/u16:1+efi_rts_wq10:35:110
28457993020,299cyclictest14620-21kworker/u16:0+efi_rts_wq11:20:102
28456993020,300cyclictest6329-21kworker/u16:2+efi_rts_wq11:55:121
28456993000,299cyclictest19684-21kworker/u16:0+efi_rts_wq07:15:141
28456993000,299cyclictest10700-21kworker/u16:2+efi_rts_wq08:40:131
28455993000,299cyclictest8630-21kworker/u16:3+efi_rts_wq10:15:100
28456992990,298cyclictest6329-21kworker/u16:2+efi_rts_wq12:30:121
28456992990,298cyclictest6329-21kworker/u16:2+efi_rts_wq12:15:101
28458992980,297cyclictest29738-21kworker/u16:3+efi_rts_wq12:22:573
28458992980,297cyclictest16545-21kworker/u16:3+efi_rts_wq07:40:133
28458992970,296cyclictest6329-21kworker/u16:2+efi_rts_wq11:45:133
28456992970,296cyclictest6329-21kworker/u16:2+efi_rts_wq11:02:421
28455992970,296cyclictest8630-21kworker/u16:3+efi_rts_wq10:12:340
28457992960,295cyclictest8630-21kworker/u16:3+efi_rts_wq10:20:122
28457992960,295cyclictest6329-21kworker/u16:2+efi_rts_wq11:40:112
28458992940,293cyclictest19684-21kworker/u16:0+efi_rts_wq07:25:133
28455992940,293cyclictest6329-21kworker/u16:2+efi_rts_wq12:20:130
28458992930,292cyclictest8630-21kworker/u16:3+efi_rts_wq11:15:113
28457992930,292cyclictest1421-21kworker/u16:1+efi_rts_wq09:10:132
28455992920,291cyclictest10700-21kworker/u16:2+efi_rts_wq08:02:100
28457992910,290cyclictest16545-21kworker/u16:3+efi_rts_wq07:35:132
28456992910,290cyclictest10700-21kworker/u16:2+efi_rts_wq08:25:121
28455992910,290cyclictest14620-21kworker/u16:0+efi_rts_wq11:27:480
28457992890,288cyclictest1421-21kworker/u16:1+efi_rts_wq10:50:122
28458992870,286cyclictest1421-21kworker/u16:1+efi_rts_wq09:05:143
28458992860,285cyclictest6329-21kworker/u16:2+efi_rts_wq12:38:013
28458992850,283cyclictest6329-21kworker/u16:2+efi_rts_wq11:35:153
28457992850,284cyclictest8630-21kworker/u16:3+efi_rts_wq10:00:132
28456992850,284cyclictest10700-21kworker/u16:2+efi_rts_wq08:30:121
28458992840,283cyclictest16545-21kworker/u16:3+efi_rts_wq07:37:053
28455992840,283cyclictest8630-21kworker/u16:3+efi_rts_wq09:00:130
28455992820,281cyclictest6329-21kworker/u16:2+efi_rts_wq11:22:460
28455992820,281cyclictest1421-21kworker/u16:1+efi_rts_wq10:50:110
28455992820,281cyclictest10700-21kworker/u16:2+efi_rts_wq08:37:160
28457992810,280cyclictest19684-21kworker/u16:0+efi_rts_wq07:20:132
28458992790,276cyclictest19684-21kworker/u16:0+efi_rts_wq08:15:123
28456992790,276cyclictest8630-21kworker/u16:3+efi_rts_wq08:55:131
28456992790,276cyclictest8630-21kworker/u16:3+efi_rts_wq08:55:121
28458992770,276cyclictest8630-21kworker/u16:3+efi_rts_wq10:10:143
28456992740,273cyclictest19684-21kworker/u16:0+efi_rts_wq08:22:141
28456992730,272cyclictest19684-21kworker/u16:0+efi_rts_wq07:20:121
28455992730,272cyclictest1421-21kworker/u16:1+efi_rts_wq09:50:130
28455992730,272cyclictest1421-21kworker/u16:1+efi_rts_wq09:30:130
28457992700,269cyclictest19684-21kworker/u16:0+efi_rts_wq08:00:122
28456992700,269cyclictest8630-21kworker/u16:3+efi_rts_wq08:50:131
28457992670,266cyclictest8630-21kworker/u16:3+efi_rts_wq09:45:122
28456992660,265cyclictest8630-21kworker/u16:3+efi_rts_wq10:25:141
28456992640,263cyclictest29738-21kworker/u16:3+efi_rts_wq12:35:101
28458992630,262cyclictest10700-21kworker/u16:2+efi_rts_wq07:45:123
28455992630,262cyclictest8630-21kworker/u16:3+efi_rts_wq09:27:250
28458992610,260cyclictest16545-21kworker/u16:3+efi_rts_wq07:32:033
28457992600,259cyclictest14620-21kworker/u16:0+efi_rts_wq11:30:112
28455992590,258cyclictest8630-21kworker/u16:3+efi_rts_wq08:57:190
28455992590,258cyclictest8630-21kworker/u16:3+efi_rts_wq08:57:190
28456992570,255cyclictest14620-21kworker/u16:0+efi_rts_wq11:25:101
28455992560,255cyclictest10700-21kworker/u16:2+efi_rts_wq07:45:110
28455992550,254cyclictest6329-21kworker/u16:2+efi_rts_wq12:17:560
28458992510,249cyclictest8630-21kworker/u16:3+efi_rts_wq10:30:143
28456992510,250cyclictest8630-21kworker/u16:3+efi_rts_wq10:55:121
28456992510,250cyclictest6329-21kworker/u16:2+efi_rts_wq12:27:581
28456992510,250cyclictest29738-21kworker/u16:3+efi_rts_wq11:42:501
28456992510,250cyclictest19684-21kworker/u16:0+efi_rts_wq07:30:121
28456992510,250cyclictest1421-21kworker/u16:1+efi_rts_wq10:05:121
28456992500,249cyclictest8630-21kworker/u16:3+efi_rts_wq10:37:381
28458992490,247cyclictest8630-21kworker/u16:3+efi_rts_wq08:50:133
28457992490,247cyclictest10700-21kworker/u16:2+efi_rts_wq08:05:142
28458992480,247cyclictest1421-21kworker/u16:1+efi_rts_wq09:12:213
28456992470,246cyclictest8630-21kworker/u16:3+efi_rts_wq10:00:131
28456992460,245cyclictest29738-21kworker/u16:3+efi_rts_wq11:50:131
28458992430,242cyclictest16545-21kworker/u16:3+efi_rts_wq07:12:003
28457992430,242cyclictest8630-21kworker/u16:3+efi_rts_wq09:15:112
28458992410,240cyclictest29738-21kworker/u16:3+efi_rts_wq12:05:153
28457992410,240cyclictest6329-21kworker/u16:2+efi_rts_wq11:55:122
28458992400,239cyclictest19684-21kworker/u16:0+efi_rts_wq07:15:023
28455992400,239cyclictest29738-21kworker/u16:3+efi_rts_wq12:10:130
28455992380,237cyclictest8630-21kworker/u16:3+efi_rts_wq10:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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