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2026-05-31 - 21:31

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 May 31, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181082325318,5sleep00-21swapper/007:08:090
181152318303,5sleep20-21swapper/207:08:162
182322316309,5sleep30-21swapper/307:09:453
182452315307,5sleep10-21swapper/107:09:551
18518992970,296cyclictest24508-21kworker/u16:3+efi_rts_wq09:35:143
18516992970,296cyclictest24508-21kworker/u16:3+efi_rts_wq09:45:131
18518992960,295cyclictest25364-21kworker/u16:0+efi_rts_wq11:45:133
18518992950,294cyclictest10759-21kworker/u16:0+efi_rts_wq07:15:133
18515992950,294cyclictest10759-21kworker/u16:0+efi_rts_wq07:15:120
18517992940,293cyclictest10759-21kworker/u16:0+efi_rts_wq08:45:132
18517992940,293cyclictest10759-21kworker/u16:0+efi_rts_wq07:55:132
18518992920,291cyclictest25364-21kworker/u16:0+efi_rts_wq10:20:133
18518992920,291cyclictest24508-21kworker/u16:3+efi_rts_wq09:45:133
18516992920,291cyclictest25364-21kworker/u16:0+efi_rts_wq10:22:361
18516992920,291cyclictest24508-21kworker/u16:3+efi_rts_wq10:05:141
18516992920,291cyclictest24508-21kworker/u16:3+efi_rts_wq08:22:141
18515992910,290cyclictest14996-21kworker/u16:2+efi_rts_wq09:50:120
18518992900,289cyclictest32689-21kworker/u16:1+efi_rts_wq12:20:123
18518992900,289cyclictest10759-21kworker/u16:0+efi_rts_wq09:10:123
18515992900,289cyclictest14996-21kworker/u16:2+efi_rts_wq10:37:390
18517992890,288cyclictest24508-21kworker/u16:3+efi_rts_wq08:25:132
18517992890,288cyclictest10759-21kworker/u16:0+efi_rts_wq08:15:142
18515992890,288cyclictest24508-21kworker/u16:3+efi_rts_wq09:20:130
18516992880,287cyclictest24508-21kworker/u16:3+efi_rts_wq08:50:141
18518992870,286cyclictest25364-21kworker/u16:0+efi_rts_wq11:00:123
18517992870,286cyclictest11532-21kworker/u16:3+efi_rts_wq12:15:122
18516992870,285cyclictest17814-21kworker/u16:3+efi_rts_wq11:20:111
18515992870,286cyclictest24508-21kworker/u16:3+efi_rts_wq10:05:140
18518992860,285cyclictest11532-21kworker/u16:3+efi_rts_wq12:17:593
18516992860,285cyclictest25364-21kworker/u16:0+efi_rts_wq10:50:131
18516992860,285cyclictest10759-21kworker/u16:0+efi_rts_wq07:10:131
18515992860,285cyclictest14996-21kworker/u16:2+efi_rts_wq10:12:350
18515992860,285cyclictest10759-21kworker/u16:0+efi_rts_wq09:25:120
18515992860,284cyclictest17814-21kworker/u16:3+efi_rts_wq11:05:130
18515992850,284cyclictest32689-21kworker/u16:1+efi_rts_wq12:10:130
18517992830,282cyclictest10759-21kworker/u16:0+efi_rts_wq08:30:152
18517992820,281cyclictest25364-21kworker/u16:0+efi_rts_wq10:25:132
18517992820,281cyclictest25364-21kworker/u16:0+efi_rts_wq10:25:122
18517992820,281cyclictest24508-21kworker/u16:3+efi_rts_wq09:55:122
18518992810,280cyclictest10759-21kworker/u16:0+efi_rts_wq08:05:143
18517992810,280cyclictest32689-21kworker/u16:1+efi_rts_wq11:55:122
18518992800,279cyclictest24508-21kworker/u16:3+efi_rts_wq08:42:163
18518992790,278cyclictest14996-21kworker/u16:2+efi_rts_wq09:40:113
18518992760,275cyclictest25364-21kworker/u16:0+efi_rts_wq10:55:133
18516992760,275cyclictest10759-21kworker/u16:0+efi_rts_wq07:30:131
18518992750,274cyclictest32689-21kworker/u16:1+efi_rts_wq12:05:153
18517992740,273cyclictest11532-21kworker/u16:3+efi_rts_wq11:50:122
18517992730,272cyclictest10759-21kworker/u16:0+efi_rts_wq07:40:132
18517992730,271cyclictest14996-21kworker/u16:2+efi_rts_wq10:45:122
18515992720,271cyclictest32689-21kworker/u16:1+efi_rts_wq11:30:130
18515992710,270cyclictest17814-21kworker/u16:3+efi_rts_wq11:40:120
18515992700,269cyclictest32689-21kworker/u16:1+efi_rts_wq12:30:110
18515992700,269cyclictest32689-21kworker/u16:1+efi_rts_wq11:35:140
18516992680,267cyclictest10759-21kworker/u16:0+efi_rts_wq08:35:131
18517992670,265cyclictest14996-21kworker/u16:2+efi_rts_wq10:00:122
18518992660,265cyclictest9244-21kworker/u16:2+efi_rts_wq11:42:523
18515992650,264cyclictest24508-21kworker/u16:3+efi_rts_wq08:10:120
18518992640,263cyclictest10759-21kworker/u16:0+efi_rts_wq08:15:143
18518992630,262cyclictest24508-21kworker/u16:3+efi_rts_wq09:00:123
18518992630,262cyclictest10759-21kworker/u16:0+efi_rts_wq07:42:063
18518992620,261cyclictest10759-21kworker/u16:0+efi_rts_wq07:12:013
18518992620,259cyclictest17814-21kworker/u16:3+efi_rts_wq11:25:133
18515992610,260cyclictest24508-21kworker/u16:3+efi_rts_wq09:02:210
18515992610,260cyclictest24508-21kworker/u16:3+efi_rts_wq08:52:190
18515992610,260cyclictest22916-21kworker/u16:2+efi_rts_wq11:10:130
18518992580,257cyclictest32689-21kworker/u16:1+efi_rts_wq11:35:143
18518992570,255cyclictest10759-21kworker/u16:0+efi_rts_wq08:45:133
18516992570,256cyclictest14996-21kworker/u16:2+efi_rts_wq10:40:131
18516992570,256cyclictest10759-21kworker/u16:0+efi_rts_wq07:25:131
18516992560,255cyclictest24508-21kworker/u16:3+efi_rts_wq07:35:141
18518992550,254cyclictest24508-21kworker/u16:3+efi_rts_wq07:52:073
18516992480,247cyclictest10759-21kworker/u16:0+efi_rts_wq08:55:131
18515992470,246cyclictest14996-21kworker/u16:2+efi_rts_wq10:47:410
18518992460,245cyclictest32689-21kworker/u16:1+efi_rts_wq12:35:143
18515992450,244cyclictest32689-21kworker/u16:1+efi_rts_wq11:55:120
18518992440,243cyclictest10759-21kworker/u16:0+efi_rts_wq09:05:133
18516992430,242cyclictest14996-21kworker/u16:2+efi_rts_wq09:42:291
18518992420,241cyclictest32689-21kworker/u16:1+efi_rts_wq12:12:583
18515992410,238cyclictest11532-21kworker/u16:3+efi_rts_wq12:00:100
18517992400,239cyclictest10759-21kworker/u16:0+efi_rts_wq07:30:122
18515992400,239cyclictest25364-21kworker/u16:0+efi_rts_wq11:22:480
18515992400,239cyclictest25364-21kworker/u16:0+efi_rts_wq11:15:120
18515992400,239cyclictest14996-21kworker/u16:2+efi_rts_wq10:15:140
18515992400,239cyclictest11532-21kworker/u16:3+efi_rts_wq12:07:560
18515992390,238cyclictest10759-21kworker/u16:0+efi_rts_wq09:15:110
18517992380,237cyclictest17814-21kworker/u16:3+efi_rts_wq11:20:112
18515992380,236cyclictest10759-21kworker/u16:0+efi_rts_wq08:57:190
18516992350,234cyclictest10759-21kworker/u16:0+efi_rts_wq09:17:241
18517992340,233cyclictest14996-21kworker/u16:2+efi_rts_wq10:42:402
18515992320,231cyclictest11532-21kworker/u16:3+efi_rts_wq12:25:120
18516992300,229cyclictest32689-21kworker/u16:1+efi_rts_wq12:30:111
18516992290,228cyclictest25364-21kworker/u16:0+efi_rts_wq10:27:381
18516992290,228cyclictest25364-21kworker/u16:0+efi_rts_wq10:27:371
18517992280,227cyclictest32689-21kworker/u16:1+efi_rts_wq12:38:042
18516992280,227cyclictest10759-21kworker/u16:0+efi_rts_wq07:15:131
18516992270,226cyclictest14996-21kworker/u16:2+efi_rts_wq10:10:101
18516992250,224cyclictest24508-21kworker/u16:3+efi_rts_wq09:30:111
18516992240,223cyclictest32689-21kworker/u16:1+efi_rts_wq11:30:131
18516992230,222cyclictest25364-21kworker/u16:0+efi_rts_wq11:45:121
18516992230,222cyclictest10759-21kworker/u16:0+efi_rts_wq09:12:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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