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2026-05-29 - 19:21

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 Fri May 29, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294882347322,23sleep10-21swapper/107:09:391
294592318304,4sleep20-21swapper/207:09:162
292692315309,4sleep30-21swapper/307:06:523
291782315308,5sleep00-21swapper/007:05:410
29780993020,301cyclictest9061-21kworker/u16:1+efi_rts_wq07:50:082
29778992990,298cyclictest13179-21kworker/u16:0+efi_rts_wq09:02:250
29778992990,296cyclictest21286-21kworker/u16:3+efi_rts_wq09:10:140
29781992980,297cyclictest9061-21kworker/u16:1+efi_rts_wq07:30:133
29779992970,296cyclictest29428-21kworker/u16:2+efi_rts_wq10:15:131
29781992960,295cyclictest21286-21kworker/u16:3+efi_rts_wq10:02:363
29778992960,295cyclictest21286-21kworker/u16:3+efi_rts_wq10:07:380
29778992950,294cyclictest9846-21kworker/u16:1+efi_rts_wq12:00:110
29778992930,292cyclictest21286-21kworker/u16:3+efi_rts_wq08:57:250
29781992920,291cyclictest9061-21kworker/u16:1+efi_rts_wq08:15:113
29779992920,291cyclictest10779-21kworker/u16:3+efi_rts_wq11:05:131
29780992900,288cyclictest10779-21kworker/u16:3+efi_rts_wq11:15:112
29779992900,289cyclictest10779-21kworker/u16:3+efi_rts_wq11:25:121
29779992890,288cyclictest20666-21kworker/u16:3+efi_rts_wq07:12:081
29780992830,282cyclictest29428-21kworker/u16:2+efi_rts_wq10:15:132
29778992810,280cyclictest9061-21kworker/u16:1+efi_rts_wq08:15:100
29778992800,279cyclictest10779-21kworker/u16:3+efi_rts_wq10:55:130
29779992740,273cyclictest21286-21kworker/u16:3+efi_rts_wq09:30:111
29778992730,272cyclictest21286-21kworker/u16:3+efi_rts_wq09:35:130
29778992730,271cyclictest13179-21kworker/u16:0+efi_rts_wq09:50:110
29780992710,269cyclictest13347-21kworker/u16:0+efi_rts_wq10:50:122
29780992700,269cyclictest13179-21kworker/u16:0+efi_rts_wq10:05:142
29780992700,268cyclictest22905-21kworker/u16:1+efi_rts_wq10:40:122
29778992700,269cyclictest9061-21kworker/u16:1+efi_rts_wq07:22:090
29781992690,268cyclictest22905-21kworker/u16:1+efi_rts_wq10:35:143
29780992670,266cyclictest9061-21kworker/u16:1+efi_rts_wq08:25:132
29781992660,265cyclictest9061-21kworker/u16:1+efi_rts_wq07:52:133
29779992660,265cyclictest27775-21kworker/u16:2+efi_rts_wq11:55:131
29781992640,263cyclictest9846-21kworker/u16:1+efi_rts_wq12:20:113
29781992640,263cyclictest21286-21kworker/u16:3+efi_rts_wq09:27:293
29779992630,262cyclictest13179-21kworker/u16:0+efi_rts_wq09:52:341
29780992600,259cyclictest4177-21kworker/u16:0+efi_rts_wq12:35:122
29781992590,258cyclictest9846-21kworker/u16:1+efi_rts_wq12:25:133
29780992580,257cyclictest21286-21kworker/u16:3+efi_rts_wq08:52:232
29780992580,257cyclictest21286-21kworker/u16:3+efi_rts_wq08:35:122
29778992580,257cyclictest4177-21kworker/u16:0+efi_rts_wq12:30:130
29779992570,256cyclictest29428-21kworker/u16:2+efi_rts_wq10:32:421
29779992570,255cyclictest22905-21kworker/u16:1+efi_rts_wq10:35:131
29780992560,255cyclictest10779-21kworker/u16:3+efi_rts_wq11:05:132
29778992560,255cyclictest27775-21kworker/u16:2+efi_rts_wq11:50:120
29781992550,254cyclictest21286-21kworker/u16:3+efi_rts_wq09:22:283
29779992530,252cyclictest13179-21kworker/u16:0+efi_rts_wq09:15:121
29781992520,250cyclictest27775-21kworker/u16:2+efi_rts_wq11:40:123
29779992520,251cyclictest4177-21kworker/u16:0+efi_rts_wq12:10:101
29779992520,251cyclictest27775-21kworker/u16:2+efi_rts_wq11:45:121
29778992520,251cyclictest21286-21kworker/u16:3+efi_rts_wq09:30:110
29781992510,250cyclictest22853-21kworker/u16:1+efi_rts_wq11:30:143
29780992510,250cyclictest20666-21kworker/u16:3+efi_rts_wq07:10:112
29780992510,250cyclictest10779-21kworker/u16:3+efi_rts_wq11:10:102
29779992510,250cyclictest13179-21kworker/u16:0+efi_rts_wq09:40:121
29778992510,250cyclictest9846-21kworker/u16:1+efi_rts_wq12:05:110
29778992510,249cyclictest10779-21kworker/u16:3+efi_rts_wq11:20:130
29781992490,248cyclictest22905-21kworker/u16:1+efi_rts_wq10:20:123
29779992470,246cyclictest8414-21kworker/u16:2+efi_rts_wq07:57:151
29779992470,246cyclictest21286-21kworker/u16:3+efi_rts_wq08:47:231
29781992460,245cyclictest28682-21kworker/u16:0+efi_rts_wq07:27:093
29778992460,245cyclictest13179-21kworker/u16:0+efi_rts_wq09:47:340
29779992450,244cyclictest13179-21kworker/u16:0+efi_rts_wq08:50:121
29781992430,242cyclictest21286-21kworker/u16:3+efi_rts_wq09:00:113
29780992430,242cyclictest13179-21kworker/u16:0+efi_rts_wq08:45:092
29779992430,242cyclictest10779-21kworker/u16:3+efi_rts_wq11:35:121
29778992420,241cyclictest9061-21kworker/u16:1+efi_rts_wq07:40:110
29778992410,240cyclictest10779-21kworker/u16:3+efi_rts_wq11:25:110
29779992400,239cyclictest9846-21kworker/u16:1+efi_rts_wq12:15:121
29779992400,239cyclictest9061-21kworker/u16:1+efi_rts_wq07:40:111
29780992390,238cyclictest4177-21kworker/u16:0+efi_rts_wq12:23:052
29778992390,238cyclictest10779-21kworker/u16:3+efi_rts_wq11:30:130
29780992380,235cyclictest13179-21kworker/u16:0+efi_rts_wq10:00:112
29781992360,235cyclictest21286-21kworker/u16:3+efi_rts_wq09:05:123
29780992360,234cyclictest29428-21kworker/u16:2+efi_rts_wq10:45:142
29779992360,235cyclictest13179-21kworker/u16:0+efi_rts_wq09:25:131
29778992360,235cyclictest13179-21kworker/u16:0+efi_rts_wq08:50:120
29781992330,232cyclictest9846-21kworker/u16:1+efi_rts_wq12:18:053
29781992310,230cyclictest4177-21kworker/u16:0+efi_rts_wq12:38:073
29779992310,230cyclictest10779-21kworker/u16:3+efi_rts_wq11:00:131
29781992300,229cyclictest29428-21kworker/u16:2+efi_rts_wq10:25:133
29779992300,229cyclictest9061-21kworker/u16:1+efi_rts_wq08:32:191
29781992270,226cyclictest4177-21kworker/u16:0+efi_rts_wq12:10:103
29779992270,226cyclictest8414-21kworker/u16:2+efi_rts_wq08:07:171
29779992270,224cyclictest9061-21kworker/u16:1+efi_rts_wq08:25:131
29779992250,224cyclictest22853-21kworker/u16:1+efi_rts_wq11:32:541
29778992250,224cyclictest21286-21kworker/u16:3+efi_rts_wq09:20:110
29779992230,222cyclictest21286-21kworker/u16:3+efi_rts_wq09:07:271
29778992230,222cyclictest8414-21kworker/u16:2+efi_rts_wq08:12:170
29778992230,222cyclictest13179-21kworker/u16:0+efi_rts_wq09:55:130
29778992210,220cyclictest22905-21kworker/u16:1+efi_rts_wq10:35:120
29779992160,215cyclictest9061-21kworker/u16:1+efi_rts_wq07:32:101
29780992150,214cyclictest27775-21kworker/u16:2+efi_rts_wq11:50:122
29781992120,211cyclictest9061-21kworker/u16:1+efi_rts_wq07:20:143
29780992120,211cyclictest28682-21kworker/u16:0+efi_rts_wq07:15:012
29779992110,210cyclictest4177-21kworker/u16:0+efi_rts_wq12:03:001
29781992090,208cyclictest27775-21kworker/u16:2+efi_rts_wq11:58:003
29780992070,206cyclictest21286-21kworker/u16:3+efi_rts_wq09:05:142
29779992050,204cyclictest22853-21kworker/u16:1+efi_rts_wq11:17:521
29779992040,203cyclictest13347-21kworker/u16:0+efi_rts_wq10:52:461
29781992030,202cyclictest21286-21kworker/u16:3+efi_rts_wq09:57:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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