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2026-03-29 - 04:40

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 Mar 29, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120872326319,4sleep30-21swapper/319:05:553
12673993190,316cyclictest14514-21kworker/u16:1+efi_rts_wq21:35:133
121332319312,5sleep20-21swapper/219:06:302
12672993150,312cyclictest14514-21kworker/u16:1+efi_rts_wq19:25:142
123132315308,5sleep10-21swapper/119:08:491
122602315307,5sleep00-21swapper/019:08:080
12673993140,313cyclictest20647-21kworker/u16:2+efi_rts_wq20:10:143
12671993140,313cyclictest24234-21kworker/u16:1+efi_rts_wq23:30:131
12671993130,312cyclictest14514-21kworker/u16:1+efi_rts_wq22:30:121
12673993090,308cyclictest20647-21kworker/u16:2+efi_rts_wq22:20:113
12672993090,308cyclictest20647-21kworker/u16:2+efi_rts_wq20:45:132
12671993060,305cyclictest24234-21kworker/u16:1+efi_rts_wq23:10:121
12672993050,304cyclictest14514-21kworker/u16:1+efi_rts_wq21:30:132
12672993030,302cyclictest14514-21kworker/u16:1+efi_rts_wq20:35:132
12673993020,301cyclictest20647-21kworker/u16:2+efi_rts_wq20:15:143
12673993020,301cyclictest14514-21kworker/u16:1+efi_rts_wq20:05:133
12672993010,300cyclictest24234-21kworker/u16:1+efi_rts_wq23:15:122
12672993010,300cyclictest14514-21kworker/u16:1+efi_rts_wq20:05:132
12670993010,300cyclictest14514-21kworker/u16:1+efi_rts_wq22:05:130
12673993000,299cyclictest20647-21kworker/u16:2+efi_rts_wq21:10:133
12672993000,299cyclictest14514-21kworker/u16:1+efi_rts_wq21:35:122
12672992990,298cyclictest14514-21kworker/u16:1+efi_rts_wq21:50:202
12671992990,298cyclictest14514-21kworker/u16:1+efi_rts_wq20:30:111
12673992980,294cyclictest26957-21kworker/u16:2+efi_rts_wq00:05:133
12672992970,296cyclictest14514-21kworker/u16:1+efi_rts_wq21:00:132
12672992970,296cyclictest14514-21kworker/u16:1+efi_rts_wq21:00:122
12673992960,295cyclictest24234-21kworker/u16:1+efi_rts_wq23:20:403
12673992960,294cyclictest10227-21kworker/u16:0+efi_rts_wq22:50:123
12671992950,294cyclictest15400-21kworker/u16:0+efi_rts_wq00:10:131
12673992920,291cyclictest20647-21kworker/u16:2+efi_rts_wq20:05:003
12671992920,291cyclictest26957-21kworker/u16:2+efi_rts_wq00:30:531
12670992910,289cyclictest13303-21kworker/u16:3+efi_rts_wq23:00:130
12673992900,289cyclictest24234-21kworker/u16:1+efi_rts_wq23:10:123
12673992900,289cyclictest14514-21kworker/u16:1+efi_rts_wq22:25:133
12672992890,288cyclictest14514-21kworker/u16:1+efi_rts_wq19:39:572
12670992890,288cyclictest26957-21kworker/u16:2+efi_rts_wq23:50:110
12673992880,287cyclictest26957-21kworker/u16:2+efi_rts_wq23:05:123
12673992880,287cyclictest20647-21kworker/u16:2+efi_rts_wq21:45:193
12673992860,285cyclictest20647-21kworker/u16:2+efi_rts_wq20:25:123
12673992860,285cyclictest14514-21kworker/u16:1+efi_rts_wq20:30:123
12671992860,285cyclictest15400-21kworker/u16:0+efi_rts_wq00:20:141
12671992860,285cyclictest14514-21kworker/u16:1+efi_rts_wq22:25:121
12671992850,284cyclictest13303-21kworker/u16:3+efi_rts_wq22:40:301
12670992840,283cyclictest14514-21kworker/u16:1+efi_rts_wq19:40:130
12673992830,282cyclictest20647-21kworker/u16:2+efi_rts_wq20:50:133
12672992830,282cyclictest20647-21kworker/u16:2+efi_rts_wq19:10:122
12672992830,282cyclictest15400-21kworker/u16:0+efi_rts_wq00:30:132
12673992820,281cyclictest15400-21kworker/u16:0+efi_rts_wq00:10:503
12673992810,280cyclictest20647-21kworker/u16:2+efi_rts_wq19:20:133
12672992810,280cyclictest20647-21kworker/u16:2+efi_rts_wq21:55:202
12673992800,279cyclictest26957-21kworker/u16:2+efi_rts_wq00:35:143
12672992800,279cyclictest20647-21kworker/u16:2+efi_rts_wq21:25:112
12673992790,278cyclictest20647-21kworker/u16:2+efi_rts_wq22:15:133
12670992790,278cyclictest26957-21kworker/u16:2+efi_rts_wq23:25:120
12673992780,277cyclictest20647-21kworker/u16:2+efi_rts_wq22:10:133
12671992780,277cyclictest14514-21kworker/u16:1+efi_rts_wq20:50:071
12672992760,275cyclictest26957-21kworker/u16:2+efi_rts_wq23:10:382
12670992760,275cyclictest10227-21kworker/u16:0+efi_rts_wq22:35:120
12671992750,274cyclictest20647-21kworker/u16:2+efi_rts_wq21:55:121
12671992730,272cyclictest14514-21kworker/u16:1+efi_rts_wq21:00:131
12671992730,272cyclictest14514-21kworker/u16:1+efi_rts_wq21:00:121
12672992720,271cyclictest26957-21kworker/u16:2+efi_rts_wq00:15:122
12673992710,270cyclictest20647-21kworker/u16:2+efi_rts_wq21:20:143
12671992700,269cyclictest15400-21kworker/u16:0+efi_rts_wq00:00:131
12673992690,268cyclictest14514-21kworker/u16:1+efi_rts_wq22:00:223
12672992670,265cyclictest10227-21kworker/u16:0+efi_rts_wq22:55:122
12671992670,266cyclictest10227-21kworker/u16:0+efi_rts_wq22:50:331
12673992660,264cyclictest14514-21kworker/u16:1+efi_rts_wq19:35:133
12671992660,265cyclictest20647-21kworker/u16:2+efi_rts_wq21:25:111
12672992650,264cyclictest24234-21kworker/u16:1+efi_rts_wq23:45:122
12670992640,263cyclictest26957-21kworker/u16:2+efi_rts_wq23:35:130
12673992630,261cyclictest10227-21kworker/u16:0+efi_rts_wq22:45:123
12671992620,261cyclictest20647-21kworker/u16:2+efi_rts_wq19:50:121
12672992600,259cyclictest14514-21kworker/u16:1+efi_rts_wq20:25:032
12671992600,259cyclictest26957-21kworker/u16:2+efi_rts_wq00:15:501
12671992600,257cyclictest14514-21kworker/u16:1+efi_rts_wq21:50:121
12672992590,256cyclictest20647-21kworker/u16:2+efi_rts_wq21:40:182
12671992590,258cyclictest26957-21kworker/u16:2+efi_rts_wq23:40:121
12671992590,258cyclictest14514-21kworker/u16:1+efi_rts_wq20:40:131
12673992580,257cyclictest20647-21kworker/u16:2+efi_rts_wq19:30:123
12673992560,255cyclictest14514-21kworker/u16:1+efi_rts_wq20:55:143
12673992560,254cyclictest10227-21kworker/u16:0+efi_rts_wq22:40:133
12672992550,254cyclictest15400-21kworker/u16:0+efi_rts_wq00:20:132
12671992510,250cyclictest20647-21kworker/u16:2+efi_rts_wq19:45:131
12671992510,250cyclictest14514-21kworker/u16:1+efi_rts_wq19:59:591
12673992490,247cyclictest10227-21kworker/u16:0+efi_rts_wq22:55:123
12671992490,248cyclictest15400-21kworker/u16:0+efi_rts_wq23:55:131
12670992460,245cyclictest14514-21kworker/u16:1+efi_rts_wq21:05:130
12673992420,241cyclictest20647-21kworker/u16:2+efi_rts_wq22:05:233
12673992410,240cyclictest26957-21kworker/u16:2+efi_rts_wq00:25:133
12673992390,238cyclictest15400-21kworker/u16:0+efi_rts_wq23:55:143
12671992380,237cyclictest26957-21kworker/u16:2+efi_rts_wq23:05:131
12672992370,236cyclictest13303-21kworker/u16:3+efi_rts_wq22:50:132
12673992360,235cyclictest14514-21kworker/u16:1+efi_rts_wq19:55:153
12671992310,230cyclictest20647-21kworker/u16:2+efi_rts_wq19:19:531
12672992300,229cyclictest14514-21kworker/u16:1+efi_rts_wq21:15:132
12673992280,227cyclictest20647-21kworker/u16:2+efi_rts_wq19:50:133
12673992260,225cyclictest14514-21kworker/u16:1+efi_rts_wq20:45:073
12671992210,220cyclictest14514-21kworker/u16:1+efi_rts_wq20:00:131
12670992210,220cyclictest14514-21kworker/u16:1+efi_rts_wq21:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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