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2025-08-29 - 12:02

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 Fri Aug 29, 2025 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28976862246225,13sleep60-21swapper/619:06:2316
28977852242221,13sleep80-21swapper/819:07:4418
28977402241222,12sleep130-21swapper/1319:07:095
28945102241220,13sleep90-21swapper/919:05:0419
28979042240220,12sleep50-21swapper/519:09:2115
28977142238218,13sleep100-21swapper/1019:06:462
28978802236217,12sleep20-21swapper/219:08:5812
28978472234215,12sleep10-21swapper/119:08:371
28978422234214,12sleep170-21swapper/1719:08:339
28978942233213,12sleep160-21swapper/1619:09:128
28977782232212,12sleep40-21swapper/419:07:4014
28978852230211,12sleep70-21swapper/719:09:0417
28976452230211,12sleep180-21swapper/1819:05:5310
28976162230211,12sleep150-21swapper/1519:05:317
28977272227206,13sleep00-21swapper/019:06:560
28978702225206,12sleep140-21swapper/1419:08:516
28978282224205,12sleep30-21swapper/319:08:1913
28978672222203,12sleep110-21swapper/1119:08:473
28978442220200,13sleep190-21swapper/1919:08:3511
28945142219200,12sleep120-21swapper/1219:05:074
289833199888,34cyclictest0-21swapper/623:27:4716
289833599468,36cyclictest0-21swapper/720:12:4617
289837199370,35cyclictest0-21swapper/1822:39:5910
2898335993331,1cyclictest3159003-21updatedb00:09:5917
289834199320,0cyclictest0-21swapper/923:18:2619
29141172310,0sleep170-21swapper/1719:25:159
2898375993027,3cyclictest0-21swapper/1922:39:5911
289834599300,30cyclictest0-21swapper/1000:10:002
2898375992928,1cyclictest192550irq/149-eno123:24:4211
2898351992929,0cyclictest0-21swapper/1200:16:584
289834599290,28cyclictest0-21swapper/1020:27:542
289833599290,0cyclictest0-21swapper/721:09:5917
2898311992929,0cyclictest0-21swapper/100:16:591
289830999290,28cyclictest0-21swapper/023:27:470
2898375992827,1cyclictest192550irq/149-eno120:21:2211
2898361992817,0cyclictest0-21swapper/1522:40:007
2898345992828,0cyclictest0-21swapper/1000:15:482
289834599280,27cyclictest0-21swapper/1023:19:012
289834599280,27cyclictest0-21swapper/1022:44:252
289834599280,27cyclictest0-21swapper/1022:23:312
289834599280,27cyclictest0-21swapper/1021:47:292
289834599280,27cyclictest0-21swapper/1020:19:562
289834599280,27cyclictest0-21swapper/1019:45:222
289834599280,27cyclictest0-21swapper/1000:38:122
289834599280,0cyclictest0-21swapper/1023:51:222
2898322992828,0cyclictest0-21swapper/400:16:5914
2898317992824,4cyclictest0-21swapper/322:39:5913
2898375992720,1cyclictest2954199-21smartctl20:10:2211
2898369992726,1cyclictest0-21swapper/1721:55:009
2898365992726,1cyclictest0-21swapper/1621:09:598
2898365992726,1cyclictest0-21swapper/1600:09:598
2898345992727,0cyclictest0-21swapper/1020:44:282
289834599270,26cyclictest0-21swapper/1023:24:052
289834599270,26cyclictest0-21swapper/1022:57:532
289834599270,26cyclictest0-21swapper/1020:21:452
289834599270,0cyclictest0-21swapper/1019:33:292
2898322992727,0cyclictest0-21swapper/421:57:0014
2898309992727,0cyclictest2850252-21kworker/0:0+pm21:45:530
2898375992626,0cyclictest192550irq/149-eno122:11:4211
2898375992626,0cyclictest192550irq/149-eno122:11:4111
2898359992625,0cyclictest0-21swapper/1400:09:596
2898345992626,0cyclictest0-21swapper/1023:10:492
289834599260,0cyclictest0-21swapper/1019:59:172
2898341992625,1cyclictest0-21swapper/900:26:4619
2898322992626,0cyclictest0-21swapper/422:18:0014
2898322992626,0cyclictest0-21swapper/422:18:0014
289830999260,15cyclictest0-21swapper/022:49:590
2898369992524,1cyclictest0-21swapper/1719:10:209
2898359992525,0cyclictest0-21swapper/1421:10:006
2898345992525,0cyclictest0-21swapper/1021:55:212
2898345992524,1cyclictest0-21swapper/1023:06:242
289834599250,0cyclictest0-21swapper/1023:35:182
2898341992525,0cyclictest0-21swapper/920:50:3219
2898309992525,0cyclictest0-21swapper/022:30:000
289837599240,24cyclictest0-21swapper/1922:34:5911
2898351992419,4cyclictest2248-21snmpd00:38:004
2898345992424,0cyclictest0-21swapper/1020:57:222
289834599240,24cyclictest0-21swapper/1022:05:112
289834599240,24cyclictest0-21swapper/1022:05:112
289834599240,23cyclictest0-21swapper/1021:28:072
289834599240,0cyclictest0-21swapper/1019:26:592
2898335992422,1cyclictest0-21swapper/721:55:0017
2898328992422,1cyclictest0-21swapper/500:09:5915
289836199230,22cyclictest0-21swapper/1522:13:597
289836199230,22cyclictest0-21swapper/1522:13:597
2898355992323,0cyclictest0-21swapper/1300:20:595
2898345992323,0cyclictest0-21swapper/1023:40:082
2898345992323,0cyclictest0-21swapper/1023:29:062
2898345992323,0cyclictest0-21swapper/1020:05:332
2898345992323,0cyclictest0-21swapper/1019:41:582
2898345992322,1cyclictest0-21swapper/1019:18:292
2898341992323,0cyclictest0-21swapper/900:21:5919
289834199230,2cyclictest2213522-21CPU19
2898339992323,0cyclictest0-21swapper/820:53:5918
2898328992322,1cyclictest0-21swapper/521:10:0015
2898309992323,0cyclictest3054727-21kworker/0:2+pm23:50:460
2898309992323,0cyclictest2850252-21kworker/0:0+pm20:51:470
289837599220,3cyclictest3114235-21ntpq23:15:1811
2898369992222,0cyclictest0-21swapper/1720:24:579
2898361992221,1cyclictest2844784-21kworker/u80:5+i91500:09:597
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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