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2026-06-16 - 07:31

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 Tue Jun 16, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52342333310,5sleep10-21swapper/119:08:051
53022326319,5sleep20-21swapper/219:08:572
51412315308,5sleep30-21swapper/319:06:543
50512313306,5sleep00-21swapper/019:05:440
5746993010,298cyclictest13310-21kworker/u16:3+efi_rts_wq21:55:113
5743993000,299cyclictest13310-21kworker/u16:3+efi_rts_wq22:05:142
5746992990,297cyclictest15380-21kworker/u16:4+efi_rts_wq20:05:153
5746992980,297cyclictest7395-21kworker/u16:0+efi_rts_wq00:00:133
5746992980,297cyclictest17384-21kworker/u16:2+efi_rts_wq00:35:133
5746992960,295cyclictest7395-21kworker/u16:0+efi_rts_wq00:05:143
5746992960,295cyclictest15380-21kworker/u16:4+efi_rts_wq22:55:133
5742992950,294cyclictest9432-21kworker/u16:1+efi_rts_wq00:20:131
5742992950,294cyclictest7395-21kworker/u16:0+efi_rts_wq23:45:501
5743992940,293cyclictest13310-21kworker/u16:3+efi_rts_wq21:20:112
5743992940,293cyclictest13310-21kworker/u16:3+efi_rts_wq20:45:122
5742992940,293cyclictest15380-21kworker/u16:4+efi_rts_wq19:35:131
5746992930,290cyclictest15380-21kworker/u16:4+efi_rts_wq21:50:133
5746992920,291cyclictest15380-21kworker/u16:4+efi_rts_wq23:00:123
5746992910,290cyclictest17384-21kworker/u16:2+efi_rts_wq00:10:123
5743992910,290cyclictest9432-21kworker/u16:1+efi_rts_wq00:20:122
5743992910,290cyclictest13310-21kworker/u16:3+efi_rts_wq23:20:122
5743992900,289cyclictest13310-21kworker/u16:3+efi_rts_wq19:25:142
5741992900,289cyclictest15380-21kworker/u16:4+efi_rts_wq22:45:400
5743992890,288cyclictest15380-21kworker/u16:4+efi_rts_wq19:30:112
5742992890,288cyclictest15380-21kworker/u16:4+efi_rts_wq21:10:121
5746992880,287cyclictest7395-21kworker/u16:0+efi_rts_wq23:25:143
5742992870,286cyclictest13310-21kworker/u16:3+efi_rts_wq21:35:141
5746992860,285cyclictest17384-21kworker/u16:2+efi_rts_wq23:40:113
5742992860,285cyclictest17384-21kworker/u16:2+efi_rts_wq00:35:121
5746992850,284cyclictest13310-21kworker/u16:3+efi_rts_wq20:45:153
5746992830,282cyclictest15380-21kworker/u16:4+efi_rts_wq21:40:133
5746992830,282cyclictest13310-21kworker/u16:3+efi_rts_wq21:20:223
5746992830,281cyclictest15380-21kworker/u16:4+efi_rts_wq22:25:123
5743992830,282cyclictest7395-21kworker/u16:0+efi_rts_wq23:15:132
5746992820,281cyclictest7395-21kworker/u16:0+efi_rts_wq23:35:493
5742992810,280cyclictest15380-21kworker/u16:4+efi_rts_wq21:00:111
5742992810,280cyclictest13310-21kworker/u16:3+efi_rts_wq21:05:191
5742992810,280cyclictest13310-21kworker/u16:3+efi_rts_wq21:05:181
5741992800,279cyclictest13310-21kworker/u16:3+efi_rts_wq22:30:120
5746992780,277cyclictest15380-21kworker/u16:4+efi_rts_wq19:45:123
5743992760,275cyclictest15380-21kworker/u16:4+efi_rts_wq22:55:142
5746992750,274cyclictest13310-21kworker/u16:3+efi_rts_wq19:40:103
5742992750,274cyclictest7395-21kworker/u16:0+efi_rts_wq23:15:131
5742992750,274cyclictest15380-21kworker/u16:4+efi_rts_wq21:25:131
5743992730,272cyclictest15380-21kworker/u16:4+efi_rts_wq20:25:132
5746992720,271cyclictest13310-21kworker/u16:3+efi_rts_wq21:30:133
5743992720,271cyclictest13310-21kworker/u16:3+efi_rts_wq20:20:122
5742992720,271cyclictest15380-21kworker/u16:4+efi_rts_wq22:15:131
5743992700,269cyclictest17384-21kworker/u16:2+efi_rts_wq23:45:132
5742992670,266cyclictest13310-21kworker/u16:3+efi_rts_wq20:00:121
5746992650,264cyclictest13310-21kworker/u16:3+efi_rts_wq20:15:133
5743992650,264cyclictest15380-21kworker/u16:4+efi_rts_wq21:10:122
5746992640,263cyclictest13310-21kworker/u16:3+efi_rts_wq22:20:333
5742992640,263cyclictest15380-21kworker/u16:4+efi_rts_wq21:50:271
5741992640,263cyclictest13310-21kworker/u16:3+efi_rts_wq23:30:470
5746992630,261cyclictest15380-21kworker/u16:4+efi_rts_wq22:00:103
5743992630,262cyclictest15380-21kworker/u16:4+efi_rts_wq19:55:142
5743992630,261cyclictest15380-21kworker/u16:4+efi_rts_wq22:50:122
5742992610,260cyclictest7395-21kworker/u16:0+efi_rts_wq23:35:121
5743992600,259cyclictest13310-21kworker/u16:3+efi_rts_wq20:15:132
5742992600,259cyclictest13310-21kworker/u16:3+efi_rts_wq21:55:291
5742992600,259cyclictest13310-21kworker/u16:3+efi_rts_wq20:55:161
5742992600,259cyclictest13310-21kworker/u16:3+efi_rts_wq19:40:101
5746992580,257cyclictest15380-21kworker/u16:4+efi_rts_wq20:40:133
5742992580,257cyclictest15380-21kworker/u16:4+efi_rts_wq20:10:141
5743992570,256cyclictest7395-21kworker/u16:0+efi_rts_wq23:50:512
5743992570,256cyclictest7395-21kworker/u16:0+efi_rts_wq23:35:132
5741992570,256cyclictest13310-21kworker/u16:3+efi_rts_wq23:05:140
5746992560,255cyclictest13310-21kworker/u16:3+efi_rts_wq21:05:133
5746992560,255cyclictest13310-21kworker/u16:3+efi_rts_wq21:05:123
5742992560,255cyclictest17384-21kworker/u16:2+efi_rts_wq00:25:581
5743992550,254cyclictest17384-21kworker/u16:2+efi_rts_wq00:25:112
5742992550,254cyclictest15380-21kworker/u16:4+efi_rts_wq22:40:141
5742992550,254cyclictest13310-21kworker/u16:3+efi_rts_wq21:30:121
5743992540,253cyclictest17384-21kworker/u16:2+efi_rts_wq23:40:102
5746992530,252cyclictest13310-21kworker/u16:3+efi_rts_wq20:55:133
5741992530,252cyclictest17384-21kworker/u16:2+efi_rts_wq00:15:110
5746992510,250cyclictest13310-21kworker/u16:3+efi_rts_wq21:45:133
5743992480,247cyclictest15380-21kworker/u16:4+efi_rts_wq20:40:122
5741992480,247cyclictest15380-21kworker/u16:4+efi_rts_wq22:35:140
5742992430,242cyclictest13310-21kworker/u16:3+efi_rts_wq22:35:371
5746992420,241cyclictest17384-21kworker/u16:2+efi_rts_wq23:55:533
5741992420,241cyclictest13310-21kworker/u16:3+efi_rts_wq23:15:450
5746992410,240cyclictest15380-21kworker/u16:4+efi_rts_wq20:35:133
5742992410,240cyclictest13310-21kworker/u16:3+efi_rts_wq22:20:121
5743992390,238cyclictest17384-21kworker/u16:2+efi_rts_wq23:55:132
5741992390,236cyclictest7395-21kworker/u16:0+efi_rts_wq23:50:120
5742992370,236cyclictest15380-21kworker/u16:4+efi_rts_wq20:50:111
5746992360,235cyclictest15380-21kworker/u16:4+efi_rts_wq21:25:223
5746992360,235cyclictest13310-21kworker/u16:3+efi_rts_wq22:50:403
5743992360,235cyclictest13310-21kworker/u16:3+efi_rts_wq21:45:262
5742992360,235cyclictest13310-21kworker/u16:3+efi_rts_wq23:30:151
5746992340,233cyclictest13310-21kworker/u16:3+efi_rts_wq19:10:123
5742992330,232cyclictest7395-21kworker/u16:0+efi_rts_wq23:25:131
5741992330,232cyclictest13310-21kworker/u16:3+efi_rts_wq23:20:120
5742992310,230cyclictest13310-21kworker/u16:3+efi_rts_wq20:30:121
5742992300,229cyclictest15380-21kworker/u16:4+efi_rts_wq19:30:111
5746992290,226cyclictest15380-21kworker/u16:4+efi_rts_wq22:40:143
5743992290,228cyclictest15380-21kworker/u16:4+efi_rts_wq23:10:122
5742992290,228cyclictest13310-21kworker/u16:3+efi_rts_wq21:20:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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