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2026-08-12 - 20:20

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 Aug 12, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53662336311,23sleep10-21swapper/107:06:561
53482321306,5sleep30-21swapper/307:06:423
53402317310,5sleep20-21swapper/207:06:372
53552314306,5sleep00-21swapper/007:06:460
5872993000,297cyclictest23091-21kworker/u16:2+efi_rts_wq08:50:133
5870993000,299cyclictest23091-21kworker/u16:2+efi_rts_wq09:30:131
5869992990,298cyclictest23091-21kworker/u16:2+efi_rts_wq08:01:310
5870992980,297cyclictest20618-21kworker/u16:3+efi_rts_wq09:51:521
5872992970,294cyclictest20618-21kworker/u16:3+efi_rts_wq07:50:133
5872992950,294cyclictest20618-21kworker/u16:3+efi_rts_wq08:55:123
5869992950,294cyclictest20618-21kworker/u16:3+efi_rts_wq09:45:130
5869992940,293cyclictest12971-21kworker/u16:1+efi_rts_wq10:35:130
5869992940,293cyclictest12971-21kworker/u16:1+efi_rts_wq10:35:130
5871992930,292cyclictest24558-21kworker/u16:2+efi_rts_wq12:10:142
5870992930,292cyclictest23091-21kworker/u16:2+efi_rts_wq09:35:131
5871992921,290cyclictest23091-21kworker/u16:2+efi_rts_wq08:05:132
5870992920,291cyclictest23091-21kworker/u16:2+efi_rts_wq10:11:561
5870992910,290cyclictest23091-21kworker/u16:2+efi_rts_wq10:30:111
5870992910,290cyclictest20618-21kworker/u16:3+efi_rts_wq08:10:131
5872992880,287cyclictest23091-21kworker/u16:2+efi_rts_wq09:10:133
5871992880,287cyclictest23091-21kworker/u16:2+efi_rts_wq09:55:122
5870992880,287cyclictest23091-21kworker/u16:2+efi_rts_wq10:40:131
5870992880,287cyclictest23091-21kworker/u16:2+efi_rts_wq10:40:131
5872992860,285cyclictest12971-21kworker/u16:1+efi_rts_wq11:55:093
5870992860,285cyclictest23091-21kworker/u16:2+efi_rts_wq10:00:131
5870992840,283cyclictest23091-21kworker/u16:2+efi_rts_wq07:35:111
5869992840,283cyclictest3405-21kworker/u16:3+efi_rts_wq12:05:170
5871992830,282cyclictest23091-21kworker/u16:2+efi_rts_wq09:00:122
5870992830,282cyclictest20618-21kworker/u16:3+efi_rts_wq09:40:121
5869992820,281cyclictest23091-21kworker/u16:2+efi_rts_wq09:00:120
5871992810,279cyclictest15732-21kworker/u16:3+efi_rts_wq11:35:132
5871992770,276cyclictest23091-21kworker/u16:2+efi_rts_wq07:40:122
5871992770,275cyclictest3335-21kworker/u16:0+efi_rts_wq11:10:122
5869992770,276cyclictest23091-21kworker/u16:2+efi_rts_wq08:45:120
5872992760,275cyclictest20618-21kworker/u16:3+efi_rts_wq07:45:143
5872992740,273cyclictest12971-21kworker/u16:1+efi_rts_wq11:02:083
5869992740,272cyclictest12971-21kworker/u16:1+efi_rts_wq11:25:130
5870992720,271cyclictest24558-21kworker/u16:2+efi_rts_wq12:27:251
5869992720,271cyclictest15732-21kworker/u16:3+efi_rts_wq11:30:120
5869992710,270cyclictest20618-21kworker/u16:3+efi_rts_wq08:51:400
5869992710,270cyclictest20618-21kworker/u16:3+efi_rts_wq08:35:130
5870992700,269cyclictest23091-21kworker/u16:2+efi_rts_wq09:21:471
5870992700,269cyclictest20618-21kworker/u16:3+efi_rts_wq09:45:131
5872992690,268cyclictest23091-21kworker/u16:2+efi_rts_wq09:20:133
5869992690,268cyclictest20618-21kworker/u16:3+efi_rts_wq07:20:130
5871992680,267cyclictest20618-21kworker/u16:3+efi_rts_wq08:25:132
5872992670,266cyclictest20618-21kworker/u16:3+efi_rts_wq08:30:133
5869992670,266cyclictest23091-21kworker/u16:2+efi_rts_wq09:50:120
5870992660,265cyclictest3405-21kworker/u16:3+efi_rts_wq12:35:121
5870992650,264cyclictest23091-21kworker/u16:2+efi_rts_wq07:11:211
5869992640,263cyclictest23091-21kworker/u16:2+efi_rts_wq08:20:140
5869992610,260cyclictest20618-21kworker/u16:3+efi_rts_wq10:10:120
5870992600,258cyclictest20618-21kworker/u16:3+efi_rts_wq07:50:131
5870992600,258cyclictest12971-21kworker/u16:1+efi_rts_wq10:35:131
5870992600,258cyclictest12971-21kworker/u16:1+efi_rts_wq10:35:131
5871992590,258cyclictest12971-21kworker/u16:1+efi_rts_wq11:40:132
5871992580,257cyclictest12971-21kworker/u16:1+efi_rts_wq11:20:122
5869992580,257cyclictest3405-21kworker/u16:3+efi_rts_wq12:15:130
5869992570,256cyclictest23091-21kworker/u16:2+efi_rts_wq09:10:120
5871992560,255cyclictest12971-21kworker/u16:1+efi_rts_wq10:50:142
5870992560,255cyclictest15732-21kworker/u16:3+efi_rts_wq11:37:141
5869992550,254cyclictest20618-21kworker/u16:3+efi_rts_wq07:15:010
5872992540,253cyclictest24558-21kworker/u16:2+efi_rts_wq11:45:133
5870992530,252cyclictest23091-21kworker/u16:2+efi_rts_wq07:15:121
5872992500,249cyclictest23091-21kworker/u16:2+efi_rts_wq10:42:043
5872992500,249cyclictest23091-21kworker/u16:2+efi_rts_wq10:42:033
5869992500,249cyclictest15732-21kworker/u16:3+efi_rts_wq11:35:140
5872992480,247cyclictest20618-21kworker/u16:3+efi_rts_wq07:16:223
5870992480,247cyclictest12971-21kworker/u16:1+efi_rts_wq10:21:591
5869992480,247cyclictest12971-21kworker/u16:1+efi_rts_wq10:40:120
5869992480,247cyclictest12971-21kworker/u16:1+efi_rts_wq10:40:110
5870992460,245cyclictest24558-21kworker/u16:2+efi_rts_wq12:07:211
5869992460,245cyclictest23091-21kworker/u16:2+efi_rts_wq09:15:130
5870992450,244cyclictest3335-21kworker/u16:0+efi_rts_wq11:00:151
5870992440,243cyclictest12971-21kworker/u16:1+efi_rts_wq10:25:141
5870992430,242cyclictest23091-21kworker/u16:2+efi_rts_wq08:31:361
5870992420,241cyclictest23091-21kworker/u16:2+efi_rts_wq08:26:351
5870992410,240cyclictest20618-21kworker/u16:3+efi_rts_wq08:41:381
5872992390,238cyclictest12971-21kworker/u16:1+efi_rts_wq10:15:133
5870992390,238cyclictest31597-21kworker/u16:0+efi_rts_wq12:00:141
5870992390,238cyclictest24558-21kworker/u16:2+efi_rts_wq12:30:131
5870992390,238cyclictest23091-21kworker/u16:2+efi_rts_wq08:50:131
5869992390,238cyclictest23091-21kworker/u16:2+efi_rts_wq07:56:300
5869992390,237cyclictest12971-21kworker/u16:1+efi_rts_wq11:40:130
5869992390,236cyclictest31597-21kworker/u16:0+efi_rts_wq12:00:140
5870992380,237cyclictest23091-21kworker/u16:2+efi_rts_wq09:06:441
5869992380,237cyclictest3405-21kworker/u16:3+efi_rts_wq12:25:120
5869992380,237cyclictest23091-21kworker/u16:2+efi_rts_wq10:27:000
5872992370,236cyclictest3405-21kworker/u16:3+efi_rts_wq12:35:123
5870992360,235cyclictest23091-21kworker/u16:2+efi_rts_wq10:50:131
5869992350,234cyclictest23091-21kworker/u16:2+efi_rts_wq09:56:540
5871992340,233cyclictest3405-21kworker/u16:3+efi_rts_wq12:20:142
5870992330,232cyclictest23091-21kworker/u16:2+efi_rts_wq08:45:121
5870992330,232cyclictest20618-21kworker/u16:3+efi_rts_wq08:56:411
5869992330,232cyclictest12971-21kworker/u16:1+efi_rts_wq11:50:140
5872992320,231cyclictest23091-21kworker/u16:2+efi_rts_wq10:52:063
5869992320,231cyclictest20618-21kworker/u16:3+efi_rts_wq07:26:240
5869992310,230cyclictest23091-21kworker/u16:2+efi_rts_wq10:05:140
5869992300,227cyclictest23091-21kworker/u16:2+efi_rts_wq07:30:130
5872992290,228cyclictest24558-21kworker/u16:2+efi_rts_wq12:30:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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