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2026-03-13 - 00:33

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 Mar 12, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
63682323315,5sleep20-21swapper/207:07:572
63662317304,5sleep00-21swapper/007:07:560
62372316308,5sleep30-21swapper/307:06:173
62202316310,4sleep10-21swapper/107:06:031
6904993140,313cyclictest21170-21kworker/u16:3+efi_rts_wq08:22:513
6898993130,312cyclictest24401-21kworker/u16:1+efi_rts_wq08:42:550
6904993120,311cyclictest877-21kworker/u16:0+efi_rts_wq10:55:113
6899993120,311cyclictest24401-21kworker/u16:1+efi_rts_wq11:30:111
6904993110,310cyclictest877-21kworker/u16:0+efi_rts_wq12:05:133
6904993110,310cyclictest24401-21kworker/u16:1+efi_rts_wq07:40:123
6901993110,310cyclictest21170-21kworker/u16:3+efi_rts_wq07:45:122
6904993100,309cyclictest877-21kworker/u16:0+efi_rts_wq12:10:123
6904993100,309cyclictest877-21kworker/u16:0+efi_rts_wq12:10:113
6901993100,309cyclictest14512-21kworker/u16:2+efi_rts_wq10:35:112
6899993100,309cyclictest24401-21kworker/u16:1+efi_rts_wq07:20:131
6904993090,308cyclictest24401-21kworker/u16:1+efi_rts_wq12:28:343
6899993090,308cyclictest877-21kworker/u16:0+efi_rts_wq12:13:331
6899993090,308cyclictest877-21kworker/u16:0+efi_rts_wq12:13:331
6898993090,308cyclictest877-21kworker/u16:0+efi_rts_wq11:50:120
6899993080,307cyclictest877-21kworker/u16:0+efi_rts_wq11:03:191
6899993080,307cyclictest24401-21kworker/u16:1+efi_rts_wq12:15:121
6899993070,306cyclictest24401-21kworker/u16:1+efi_rts_wq11:40:111
6899993070,304cyclictest14512-21kworker/u16:2+efi_rts_wq09:35:111
6904993060,305cyclictest24401-21kworker/u16:1+efi_rts_wq08:15:133
6898993060,305cyclictest14512-21kworker/u16:2+efi_rts_wq10:23:130
6901993050,304cyclictest21170-21kworker/u16:3+efi_rts_wq08:30:092
6898993050,304cyclictest24401-21kworker/u16:1+efi_rts_wq09:50:130
6898993050,303cyclictest24401-21kworker/u16:1+efi_rts_wq11:55:140
6901993040,303cyclictest24401-21kworker/u16:1+efi_rts_wq08:07:492
6898993040,303cyclictest877-21kworker/u16:0+efi_rts_wq10:38:160
6899993020,301cyclictest877-21kworker/u16:0+efi_rts_wq12:30:121
6899993020,301cyclictest877-21kworker/u16:0+efi_rts_wq10:45:131
6899993020,301cyclictest14512-21kworker/u16:2+efi_rts_wq10:05:111
6898993020,301cyclictest14512-21kworker/u16:2+efi_rts_wq09:45:120
6901993010,300cyclictest877-21kworker/u16:0+efi_rts_wq12:20:132
6904993000,299cyclictest877-21kworker/u16:0+efi_rts_wq10:30:123
6904993000,299cyclictest24401-21kworker/u16:1+efi_rts_wq11:40:113
6901993000,299cyclictest24401-21kworker/u16:1+efi_rts_wq11:23:222
6898993000,299cyclictest14512-21kworker/u16:2+efi_rts_wq10:00:110
6899992990,298cyclictest24401-21kworker/u16:1+efi_rts_wq11:53:271
6899992990,298cyclictest24401-21kworker/u16:1+efi_rts_wq08:35:121
6901992980,297cyclictest13747-21kworker/u16:0+efi_rts_wq07:30:122
6899992980,297cyclictest24401-21kworker/u16:1+efi_rts_wq11:05:131
6904992970,296cyclictest21170-21kworker/u16:3+efi_rts_wq08:30:103
6899992970,296cyclictest24401-21kworker/u16:1+efi_rts_wq09:55:121
6898992960,295cyclictest877-21kworker/u16:0+efi_rts_wq12:30:110
6904992940,293cyclictest21170-21kworker/u16:3+efi_rts_wq07:50:123
6899992920,291cyclictest24401-21kworker/u16:1+efi_rts_wq11:15:121
6899992920,290cyclictest877-21kworker/u16:0+efi_rts_wq11:10:111
6899992910,290cyclictest14512-21kworker/u16:2+efi_rts_wq10:25:121
6904992870,286cyclictest24401-21kworker/u16:1+efi_rts_wq11:25:133
6899992870,286cyclictest877-21kworker/u16:0+efi_rts_wq11:35:121
6899992870,286cyclictest24401-21kworker/u16:1+efi_rts_wq08:40:121
6904992850,284cyclictest877-21kworker/u16:0+efi_rts_wq10:48:173
6904992850,284cyclictest24401-21kworker/u16:1+efi_rts_wq09:25:133
6904992810,280cyclictest24401-21kworker/u16:1+efi_rts_wq09:33:043
6904992810,280cyclictest14512-21kworker/u16:2+efi_rts_wq09:10:123
6898992810,280cyclictest24401-21kworker/u16:1+efi_rts_wq09:20:130
6904992800,279cyclictest14512-21kworker/u16:2+efi_rts_wq09:35:123
6899992800,279cyclictest877-21kworker/u16:0+efi_rts_wq10:50:121
6901992780,277cyclictest24401-21kworker/u16:1+efi_rts_wq11:45:112
6898992780,277cyclictest14512-21kworker/u16:2+efi_rts_wq10:28:150
6901992760,275cyclictest24401-21kworker/u16:1+efi_rts_wq07:35:112
6904992750,274cyclictest24401-21kworker/u16:1+efi_rts_wq09:20:113
6899992750,274cyclictest24401-21kworker/u16:1+efi_rts_wq11:45:111
6899992750,274cyclictest24401-21kworker/u16:1+efi_rts_wq09:30:111
6899992750,274cyclictest21170-21kworker/u16:3+efi_rts_wq08:10:111
6899992710,270cyclictest14512-21kworker/u16:2+efi_rts_wq10:15:111
6898992710,270cyclictest24401-21kworker/u16:1+efi_rts_wq11:30:110
6904992690,268cyclictest14512-21kworker/u16:2+efi_rts_wq08:45:143
6904992680,267cyclictest14512-21kworker/u16:2+efi_rts_wq10:15:113
6899992650,264cyclictest14512-21kworker/u16:2+efi_rts_wq09:45:121
6899992650,264cyclictest13747-21kworker/u16:0+efi_rts_wq07:15:011
6898992650,264cyclictest14512-21kworker/u16:2+efi_rts_wq09:00:120
6898992640,263cyclictest877-21kworker/u16:0+efi_rts_wq12:10:120
6898992640,263cyclictest877-21kworker/u16:0+efi_rts_wq12:10:110
6899992620,261cyclictest877-21kworker/u16:0+efi_rts_wq10:55:121
6901992610,260cyclictest24401-21kworker/u16:1+efi_rts_wq12:00:102
6898992610,260cyclictest24401-21kworker/u16:1+efi_rts_wq09:55:120
6899992600,259cyclictest14512-21kworker/u16:2+efi_rts_wq10:10:121
6901992580,257cyclictest24401-21kworker/u16:1+efi_rts_wq11:15:122
6899992580,257cyclictest877-21kworker/u16:0+efi_rts_wq11:20:121
6898992580,257cyclictest24401-21kworker/u16:1+efi_rts_wq08:25:130
6901992550,254cyclictest24401-21kworker/u16:1+efi_rts_wq11:25:132
6901992540,253cyclictest21170-21kworker/u16:3+efi_rts_wq08:10:122
6898992530,252cyclictest14512-21kworker/u16:2+efi_rts_wq09:15:100
6904992520,251cyclictest24401-21kworker/u16:1+efi_rts_wq12:23:343
6904992490,248cyclictest21170-21kworker/u16:3+efi_rts_wq07:45:123
6899992480,247cyclictest24401-21kworker/u16:1+efi_rts_wq09:53:091
6899992470,246cyclictest24401-21kworker/u16:1+efi_rts_wq08:52:561
6904992430,242cyclictest14512-21kworker/u16:2+efi_rts_wq10:05:113
6904992430,242cyclictest14512-21kworker/u16:2+efi_rts_wq09:58:103
6899992430,242cyclictest24401-21kworker/u16:1+efi_rts_wq12:03:311
6904992350,234cyclictest877-21kworker/u16:0+efi_rts_wq11:50:113
6898992350,234cyclictest13747-21kworker/u16:0+efi_rts_wq07:22:400
6898992320,231cyclictest24401-21kworker/u16:1+efi_rts_wq10:53:180
6901992310,230cyclictest14512-21kworker/u16:2+efi_rts_wq09:15:122
6901992310,230cyclictest13747-21kworker/u16:0+efi_rts_wq07:15:112
6898992310,230cyclictest877-21kworker/u16:0+efi_rts_wq11:35:120
6904992300,229cyclictest14512-21kworker/u16:2+efi_rts_wq09:40:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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