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2026-04-11 - 04:33

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 Sat Apr 11, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121442325304,4sleep30-21swapper/319:09:013
12488993230,320cyclictest16014-21kworker/u16:3+efi_rts_wq20:25:120
12488993210,318cyclictest21634-21kworker/u16:2+efi_rts_wq00:30:100
120392316308,5sleep00-21swapper/019:07:380
119582316309,5sleep10-21swapper/119:06:351
118682315308,5sleep20-21swapper/219:05:282
12490993140,313cyclictest16014-21kworker/u16:3+efi_rts_wq20:25:122
12488993130,312cyclictest16014-21kworker/u16:3+efi_rts_wq21:05:120
12489993120,311cyclictest21634-21kworker/u16:2+efi_rts_wq23:50:111
12488993120,311cyclictest21634-21kworker/u16:2+efi_rts_wq00:20:110
12488993110,310cyclictest300-21kworker/u16:1+efi_rts_wq00:35:120
12488993100,309cyclictest16101-21kworker/u16:1+efi_rts_wq23:05:120
12490993090,308cyclictest16014-21kworker/u16:3+efi_rts_wq20:55:122
12491993080,307cyclictest16101-21kworker/u16:1+efi_rts_wq22:50:123
12490993080,307cyclictest16014-21kworker/u16:3+efi_rts_wq20:35:122
12489993080,307cyclictest16014-21kworker/u16:3+efi_rts_wq19:40:131
12489993050,304cyclictest24858-21kworker/u16:1+efi_rts_wq21:15:121
12491993030,302cyclictest300-21kworker/u16:1+efi_rts_wq00:16:163
12490993030,302cyclictest21634-21kworker/u16:2+efi_rts_wq00:21:172
12489993030,302cyclictest21634-21kworker/u16:2+efi_rts_wq00:31:181
12488993030,302cyclictest16014-21kworker/u16:3+efi_rts_wq20:59:380
12491993020,301cyclictest24858-21kworker/u16:1+efi_rts_wq20:49:363
12489993020,301cyclictest16014-21kworker/u16:3+efi_rts_wq19:24:211
12489993010,300cyclictest24858-21kworker/u16:1+efi_rts_wq22:10:111
12489993010,300cyclictest16014-21kworker/u16:3+efi_rts_wq22:44:581
12491992990,298cyclictest21634-21kworker/u16:2+efi_rts_wq23:10:003
12490992990,298cyclictest300-21kworker/u16:1+efi_rts_wq23:35:122
12490992990,298cyclictest24858-21kworker/u16:1+efi_rts_wq21:10:122
12488992980,297cyclictest16014-21kworker/u16:3+efi_rts_wq20:20:130
12491992960,295cyclictest16014-21kworker/u16:3+efi_rts_wq21:25:133
12489992960,295cyclictest16014-21kworker/u16:3+efi_rts_wq20:04:281
12488992920,291cyclictest24858-21kworker/u16:1+efi_rts_wq19:20:110
12491992910,288cyclictest300-21kworker/u16:1+efi_rts_wq23:30:143
12490992910,290cyclictest21634-21kworker/u16:2+efi_rts_wq23:55:122
12489992910,290cyclictest16014-21kworker/u16:3+efi_rts_wq22:20:121
12488992910,290cyclictest300-21kworker/u16:1+efi_rts_wq00:15:120
12491992900,289cyclictest24858-21kworker/u16:1+efi_rts_wq21:00:133
12490992900,288cyclictest16014-21kworker/u16:3+efi_rts_wq23:10:142
12488992900,289cyclictest16014-21kworker/u16:3+efi_rts_wq20:00:130
12489992880,286cyclictest16101-21kworker/u16:1+efi_rts_wq22:45:141
12490992870,286cyclictest300-21kworker/u16:1+efi_rts_wq00:00:142
12489992840,283cyclictest16014-21kworker/u16:3+efi_rts_wq20:10:131
12491992820,281cyclictest24858-21kworker/u16:1+efi_rts_wq22:00:133
12489992820,281cyclictest16101-21kworker/u16:1+efi_rts_wq23:05:121
12488992810,280cyclictest16014-21kworker/u16:3+efi_rts_wq21:25:130
12491992790,278cyclictest16014-21kworker/u16:3+efi_rts_wq19:25:133
12489992790,278cyclictest21634-21kworker/u16:2+efi_rts_wq23:40:111
12490992780,277cyclictest300-21kworker/u16:1+efi_rts_wq00:10:132
12488992770,276cyclictest300-21kworker/u16:1+efi_rts_wq00:00:140
12488992770,276cyclictest16014-21kworker/u16:3+efi_rts_wq21:59:480
12489992750,274cyclictest16014-21kworker/u16:3+efi_rts_wq19:34:231
12491992740,271cyclictest24858-21kworker/u16:1+efi_rts_wq19:45:133
12488992730,272cyclictest21634-21kworker/u16:2+efi_rts_wq23:20:120
12488992700,269cyclictest300-21kworker/u16:1+efi_rts_wq23:30:130
12488992700,269cyclictest16014-21kworker/u16:3+efi_rts_wq22:15:140
12488992700,269cyclictest16014-21kworker/u16:3+efi_rts_wq22:15:140
12488992690,268cyclictest24858-21kworker/u16:1+efi_rts_wq19:55:120
12489992680,267cyclictest16014-21kworker/u16:3+efi_rts_wq22:05:121
12491992640,263cyclictest24858-21kworker/u16:1+efi_rts_wq20:40:133
12491992640,263cyclictest16014-21kworker/u16:3+efi_rts_wq21:40:123
12488992640,263cyclictest16014-21kworker/u16:3+efi_rts_wq20:15:120
12490992620,261cyclictest21634-21kworker/u16:2+efi_rts_wq00:36:192
12488992620,261cyclictest16014-21kworker/u16:3+efi_rts_wq22:05:110
12489992610,260cyclictest24858-21kworker/u16:1+efi_rts_wq21:45:131
12489992610,260cyclictest21634-21kworker/u16:2+efi_rts_wq23:15:121
12491992600,259cyclictest16014-21kworker/u16:3+efi_rts_wq20:00:133
12490992600,259cyclictest300-21kworker/u16:1+efi_rts_wq00:05:142
12490992600,258cyclictest24858-21kworker/u16:1+efi_rts_wq19:15:012
12490992590,258cyclictest5668-21kworker/u16:4+efi_rts_wq22:25:142
12489992590,256cyclictest300-21kworker/u16:1+efi_rts_wq00:10:131
12488992590,258cyclictest16014-21kworker/u16:3+efi_rts_wq22:39:560
12488992590,258cyclictest16014-21kworker/u16:3+efi_rts_wq19:14:200
12490992550,254cyclictest16014-21kworker/u16:3+efi_rts_wq20:50:112
12488992540,253cyclictest300-21kworker/u16:1+efi_rts_wq00:25:130
12489992530,252cyclictest16014-21kworker/u16:3+efi_rts_wq19:54:261
12490992510,250cyclictest24858-21kworker/u16:1+efi_rts_wq20:40:132
12488992510,250cyclictest300-21kworker/u16:1+efi_rts_wq23:51:100
12490992490,248cyclictest16014-21kworker/u16:3+efi_rts_wq20:45:122
12488992490,246cyclictest24858-21kworker/u16:1+efi_rts_wq19:30:110
12491992480,247cyclictest16014-21kworker/u16:3+efi_rts_wq20:29:323
12488992480,247cyclictest24858-21kworker/u16:1+efi_rts_wq20:30:130
12488992470,246cyclictest24858-21kworker/u16:1+efi_rts_wq19:35:130
12491992450,244cyclictest24858-21kworker/u16:1+efi_rts_wq21:30:153
12491992440,243cyclictest16101-21kworker/u16:1+efi_rts_wq22:55:113
12490992430,242cyclictest3344-21kworker/u16:0+efi_rts_wq22:30:132
12491992410,240cyclictest16014-21kworker/u16:3+efi_rts_wq22:14:513
12489992410,240cyclictest21634-21kworker/u16:2+efi_rts_wq00:01:121
12489992400,239cyclictest24858-21kworker/u16:1+efi_rts_wq21:35:121
12488992400,239cyclictest24858-21kworker/u16:1+efi_rts_wq21:24:420
12489992390,238cyclictest24858-21kworker/u16:1+efi_rts_wq19:15:151
12489992380,237cyclictest3344-21kworker/u16:0+efi_rts_wq22:35:121
12489992370,236cyclictest16014-21kworker/u16:3+efi_rts_wq20:54:371
12491992350,234cyclictest24858-21kworker/u16:1+efi_rts_wq21:10:123
12491992300,229cyclictest24858-21kworker/u16:1+efi_rts_wq21:45:133
12491992290,228cyclictest24858-21kworker/u16:1+efi_rts_wq21:20:143
12491992290,228cyclictest21634-21kworker/u16:2+efi_rts_wq23:15:123
12489992280,227cyclictest24858-21kworker/u16:1+efi_rts_wq20:09:291
12489992270,226cyclictest16014-21kworker/u16:3+efi_rts_wq19:10:121
12491992260,225cyclictest16014-21kworker/u16:3+efi_rts_wq23:00:133
12491992250,224cyclictest24858-21kworker/u16:1+efi_rts_wq19:55:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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