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2026-06-04 - 12:23

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 Thu Jun 04, 2026 00:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130852324318,4sleep20-21swapper/219:07:422
132282317302,5sleep00-21swapper/019:09:320
131462316303,10sleep30-21swapper/319:08:313
132092314308,4sleep10-21swapper/119:09:171
13531993010,300cyclictest22087-21kworker/u16:3+efi_rts_wq19:10:132
13530993000,299cyclictest29371-21kworker/u16:0+efi_rts_wq00:20:131
13529992980,297cyclictest22087-21kworker/u16:3+efi_rts_wq21:10:100
13531992970,296cyclictest4241-21kworker/u16:1+efi_rts_wq22:00:132
13529992930,292cyclictest13702-21kworker/u16:1+efi_rts_wq00:30:120
13529992920,291cyclictest26833-21kworker/u16:2+efi_rts_wq23:30:120
13530992910,290cyclictest29371-21kworker/u16:0+efi_rts_wq23:40:121
13531992900,289cyclictest4241-21kworker/u16:1+efi_rts_wq22:55:112
13531992880,287cyclictest19220-21kworker/u16:2+efi_rts_wq22:40:122
13530992880,285cyclictest22087-21kworker/u16:3+efi_rts_wq19:40:091
13531992870,285cyclictest4241-21kworker/u16:1+efi_rts_wq21:35:132
13530992870,286cyclictest4241-21kworker/u16:1+efi_rts_wq19:48:411
13530992860,285cyclictest4241-21kworker/u16:1+efi_rts_wq20:30:091
13530992860,285cyclictest13702-21kworker/u16:1+efi_rts_wq23:55:111
13529992860,285cyclictest29371-21kworker/u16:0+efi_rts_wq23:39:240
13532992850,284cyclictest29371-21kworker/u16:0+efi_rts_wq00:31:113
13530992850,284cyclictest22087-21kworker/u16:3+efi_rts_wq19:30:091
13532992840,283cyclictest22087-21kworker/u16:3+efi_rts_wq22:25:113
13530992840,283cyclictest13702-21kworker/u16:1+efi_rts_wq00:30:111
13529992830,282cyclictest13702-21kworker/u16:1+efi_rts_wq23:46:030
13532992820,281cyclictest13702-21kworker/u16:1+efi_rts_wq00:10:123
13532992810,279cyclictest29371-21kworker/u16:0+efi_rts_wq23:00:123
13529992810,280cyclictest4241-21kworker/u16:1+efi_rts_wq22:04:070
13529992810,280cyclictest13702-21kworker/u16:1+efi_rts_wq00:10:120
13532992800,279cyclictest4241-21kworker/u16:1+efi_rts_wq21:35:133
13532992800,279cyclictest26833-21kworker/u16:2+efi_rts_wq23:35:133
13530992790,278cyclictest4241-21kworker/u16:1+efi_rts_wq20:18:471
13530992780,275cyclictest4241-21kworker/u16:1+efi_rts_wq21:20:091
13529992780,277cyclictest4241-21kworker/u16:1+efi_rts_wq21:49:040
13529992780,277cyclictest22087-21kworker/u16:3+efi_rts_wq20:40:080
13532992770,276cyclictest4241-21kworker/u16:1+efi_rts_wq21:13:573
13530992770,276cyclictest22087-21kworker/u16:3+efi_rts_wq21:40:121
13531992750,274cyclictest22087-21kworker/u16:3+efi_rts_wq22:10:142
13529992750,274cyclictest4241-21kworker/u16:1+efi_rts_wq22:30:130
13529992740,273cyclictest29371-21kworker/u16:0+efi_rts_wq23:10:120
13531992730,272cyclictest22087-21kworker/u16:3+efi_rts_wq22:30:122
13532992720,271cyclictest29371-21kworker/u16:0+efi_rts_wq23:29:233
13532992710,270cyclictest4241-21kworker/u16:1+efi_rts_wq19:15:003
13532992710,270cyclictest22087-21kworker/u16:3+efi_rts_wq19:10:133
13529992710,270cyclictest10607-21kworker/u16:0+efi_rts_wq22:35:110
13529992690,268cyclictest22087-21kworker/u16:3+efi_rts_wq19:30:080
13532992660,265cyclictest22087-21kworker/u16:3+efi_rts_wq21:25:133
13532992660,265cyclictest22087-21kworker/u16:3+efi_rts_wq21:25:133
13530992650,264cyclictest4241-21kworker/u16:1+efi_rts_wq21:29:001
13530992650,264cyclictest4241-21kworker/u16:1+efi_rts_wq21:29:001
13531992640,263cyclictest13702-21kworker/u16:1+efi_rts_wq00:15:132
13532992630,262cyclictest29371-21kworker/u16:0+efi_rts_wq00:35:123
13529992620,261cyclictest29371-21kworker/u16:0+efi_rts_wq23:24:220
13530992610,260cyclictest13702-21kworker/u16:1+efi_rts_wq00:15:131
13530992600,259cyclictest4241-21kworker/u16:1+efi_rts_wq22:05:131
13532992590,257cyclictest13702-21kworker/u16:1+efi_rts_wq00:00:103
13531992590,258cyclictest13702-21kworker/u16:1+efi_rts_wq00:00:102
13532992560,255cyclictest4241-21kworker/u16:1+efi_rts_wq20:50:083
13531992560,255cyclictest4241-21kworker/u16:1+efi_rts_wq21:20:102
13530992560,255cyclictest4241-21kworker/u16:1+efi_rts_wq20:10:091
13530992560,255cyclictest4241-21kworker/u16:1+efi_rts_wq19:50:081
13531992550,254cyclictest4241-21kworker/u16:1+efi_rts_wq20:10:082
13532992530,252cyclictest29371-21kworker/u16:0+efi_rts_wq23:51:043
13531992530,252cyclictest22087-21kworker/u16:3+efi_rts_wq19:38:392
13530992510,250cyclictest13702-21kworker/u16:1+efi_rts_wq00:05:131
13532992500,249cyclictest4241-21kworker/u16:1+efi_rts_wq19:50:083
13531992490,247cyclictest32008-21kworker/u16:3+efi_rts_wq23:05:112
13530992480,247cyclictest4241-21kworker/u16:1+efi_rts_wq20:00:081
13530992480,247cyclictest29371-21kworker/u16:0+efi_rts_wq00:01:051
13531992470,246cyclictest22087-21kworker/u16:3+efi_rts_wq22:20:122
13531992470,246cyclictest2106-21kworker/u16:1+efi_rts_wq23:15:122
13529992470,246cyclictest22087-21kworker/u16:3+efi_rts_wq21:03:550
13532992460,245cyclictest4241-21kworker/u16:1+efi_rts_wq22:05:133
13531992460,245cyclictest22087-21kworker/u16:3+efi_rts_wq22:50:132
13531992460,245cyclictest13702-21kworker/u16:1+efi_rts_wq00:25:132
13530992460,244cyclictest26833-21kworker/u16:2+efi_rts_wq23:20:121
13531992430,240cyclictest22087-21kworker/u16:3+efi_rts_wq21:50:132
13532992410,240cyclictest22087-21kworker/u16:3+efi_rts_wq19:20:093
13532992400,239cyclictest4241-21kworker/u16:1+efi_rts_wq21:18:583
13532992400,237cyclictest22087-21kworker/u16:3+efi_rts_wq22:50:133
13532992370,236cyclictest4241-21kworker/u16:1+efi_rts_wq20:20:093
13531992360,235cyclictest29371-21kworker/u16:0+efi_rts_wq00:35:122
13530992360,235cyclictest4241-21kworker/u16:1+efi_rts_wq22:15:131
13531992300,229cyclictest22087-21kworker/u16:3+efi_rts_wq21:30:122
13529992300,229cyclictest4241-21kworker/u16:1+efi_rts_wq20:20:090
13529992290,228cyclictest13702-21kworker/u16:1+efi_rts_wq00:05:130
13530992270,226cyclictest26833-21kworker/u16:2+efi_rts_wq23:25:111
13529992270,226cyclictest4241-21kworker/u16:1+efi_rts_wq21:44:020
13532992250,223cyclictest13702-21kworker/u16:1+efi_rts_wq23:45:123
13529992250,224cyclictest4241-21kworker/u16:1+efi_rts_wq21:34:010
13530992230,222cyclictest22087-21kworker/u16:3+efi_rts_wq19:20:091
13529992230,222cyclictest4241-21kworker/u16:1+efi_rts_wq21:35:130
13530992220,221cyclictest22087-21kworker/u16:3+efi_rts_wq21:10:101
13532992210,220cyclictest4241-21kworker/u16:1+efi_rts_wq22:49:153
13530992210,220cyclictest29371-21kworker/u16:0+efi_rts_wq22:59:171
13530992200,219cyclictest22087-21kworker/u16:3+efi_rts_wq21:55:121
13529992200,217cyclictest4241-21kworker/u16:1+efi_rts_wq20:50:090
13532992150,214cyclictest29371-21kworker/u16:0+efi_rts_wq00:20:133
13531992140,213cyclictest22087-21kworker/u16:3+efi_rts_wq19:43:402
13532992130,212cyclictest4241-21kworker/u16:1+efi_rts_wq20:08:443
13529992120,211cyclictest22087-21kworker/u16:3+efi_rts_wq22:54:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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