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2026-03-29 - 12:58

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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 rack0slot6s.osadl.org (updated Sun Mar 29, 2026 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2093442253236,14sleep40-21swapper/419:07:4514
2093792244237,4sleep90-21swapper/919:08:1119
2093752243238,3sleep50-21swapper/519:08:0615
2092362235215,12sleep70-21swapper/719:06:2817
2094442234213,13sleep180-21swapper/1819:09:0010
2092322233214,12sleep30-21swapper/319:06:2413
2092642232187,13sleep100-21swapper/1019:06:522
2091582232213,12sleep140-21swapper/1419:05:346
2091902231210,13sleep190-21swapper/1919:06:0011
2091762231210,13sleep80-21swapper/819:05:4818
2094362229208,13sleep120-21swapper/1219:08:534
2091552227207,12sleep110-21swapper/1119:05:313
2094472226204,13sleep00-21swapper/019:09:020
2092352225206,12sleep60-21swapper/619:06:2716
2095302224205,12sleep170-21swapper/1719:09:599
2092442223203,12sleep150-21swapper/1519:06:367
2091842223204,12sleep130-21swapper/1319:05:535
2092812220200,12sleep10-21swapper/119:07:031
2093862217196,13sleep160-21swapper/1619:08:178
2093422216197,12sleep20-21swapper/219:07:4312
3503492910,0sleep30-21swapper/321:50:1513
209939993030,0cyclictest0-21swapper/1919:14:0311
209939993030,0cyclictest0-21swapper/1919:14:0311
209878993029,0cyclictest0-21swapper/219:14:0312
209878993029,0cyclictest0-21swapper/219:14:0312
20991299290,12cyclictest0-21swapper/1121:32:043
209898992827,0cyclictest0-21swapper/819:14:0418
209898992827,0cyclictest0-21swapper/819:14:0318
209922992525,0cyclictest206850irq/155-eno119:13:456
209922992525,0cyclictest206850irq/155-eno119:13:446
20989899250,23cyclictest0-21swapper/819:15:2918
20989899250,23cyclictest0-21swapper/819:15:2818
209891992521,3cyclictest0-21swapper/619:12:3116
209891992521,3cyclictest0-21swapper/619:12:3016
20989199250,25cyclictest0-21swapper/619:15:0516
20989199250,25cyclictest0-21swapper/619:15:0416
209886992417,6cyclictest0-21swapper/419:12:2714
209886992417,6cyclictest0-21swapper/419:12:2614
209871992424,0cyclictest0-21swapper/019:13:170
209871992424,0cyclictest0-21swapper/019:13:160
20993999231,1cyclictest472371-21CPU11
209936992320,3cyclictest0-21swapper/1819:14:1210
209936992320,3cyclictest0-21swapper/1819:14:1110
20993699231,21cyclictest2233-21nessusd19:16:4510
20993699231,21cyclictest2233-21nessusd19:16:4510
209933992323,0cyclictest0-21swapper/1719:14:049
209933992323,0cyclictest0-21swapper/1719:14:039
209894992321,2cyclictest0-21swapper/721:35:1617
209881992323,0cyclictest0-21swapper/319:13:1613
209881992323,0cyclictest0-21swapper/319:13:1613
20993999220,1cyclictest472371-21CPU11
209936992217,5cyclictest0-21swapper/1821:52:3010
209904992220,1cyclictest472370-21CPU19
20990499221,21cyclictest2216-21nessusd19:11:2219
20990499221,21cyclictest2216-21nessusd19:11:2119
209886992222,0cyclictest0-21swapper/419:15:5314
209886992222,0cyclictest0-21swapper/419:15:5314
209871992211,11cyclictest0-21swapper/021:46:580
20993999210,21cyclictest0-21swapper/1919:16:0111
20993999210,21cyclictest0-21swapper/1919:16:0011
20993999210,20cyclictest472371-21CPU11
209928992121,0cyclictest0-21swapper/1619:13:178
209928992121,0cyclictest0-21swapper/1619:13:178
209926992121,0cyclictest0-21swapper/1519:12:267
209926992121,0cyclictest0-21swapper/1519:12:257
209916992121,0cyclictest0-21swapper/1219:14:034
209916992121,0cyclictest0-21swapper/1219:14:034
209908992114,6cyclictest0-21swapper/1019:14:122
209908992114,6cyclictest0-21swapper/1019:14:122
20990499210,20cyclictest0-21swapper/921:50:1619
209898992119,1cyclictest472371-21CPU18
209898992119,1cyclictest472371-21CPU18
20989199211,1cyclictest472371-21CPU16
209939992020,0cyclictest0-21swapper/1921:55:1711
209939992017,2cyclictest472371-21CPU11
209936992020,0cyclictest0-21swapper/1820:30:1610
209936992020,0cyclictest0-21swapper/1800:02:5910
209936992019,1cyclictest0-21swapper/1823:05:1610
20993699200,20cyclictest0-21swapper/1819:20:3210
20993699200,20cyclictest0-21swapper/1819:20:3110
20993699200,0cyclictest286682-21strings20:35:1610
20992899200,19cyclictest0-21swapper/1621:15:188
20992299200,18cyclictest0-21swapper/1419:15:116
20992299200,18cyclictest0-21swapper/1419:15:116
209916992018,1cyclictest472371-21CPU4
209908992014,3cyclictest0-21swapper/1019:15:052
209908992014,3cyclictest0-21swapper/1019:15:042
20990499200,20cyclictest0-21swapper/920:15:1719
20990499200,20cyclictest0-21swapper/919:15:0619
20990499200,20cyclictest0-21swapper/919:15:0619
20990499200,0cyclictest0-21swapper/919:56:2819
209894992019,1cyclictest0-21swapper/719:15:0417
209894992019,1cyclictest0-21swapper/719:15:0317
209894992019,1cyclictest0-21swapper/719:10:0617
209894992019,1cyclictest0-21swapper/719:10:0517
20989199200,1cyclictest80-21ksoftirqd/623:05:1616
20989199200,19cyclictest80-21ksoftirqd/620:30:1616
209888992018,1cyclictest0-21swapper/519:10:1715
209888992018,1cyclictest0-21swapper/519:10:1615
209886992020,0cyclictest0-21swapper/421:42:1614
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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