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2025-11-30 - 12:39

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 Nov 30, 2025 00:46:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69519727363,5sleep20-21swapper/219:07:5812
69528125851,4sleep30-21swapper/319:09:0013
695737995628,0cyclictest201rcu_preempt19:21:184
69534125649,4sleep90-21swapper/919:09:4619
69509325547,5sleep40-21swapper/419:06:4014
69199225547,5sleep180-21swapper/1819:05:1310
69523725447,4sleep110-21swapper/1119:08:263
69524425347,3sleep150-21swapper/1519:08:317
69521925346,4sleep160-21swapper/1619:08:128
69528625244,5sleep80-21swapper/819:09:0418
69500425244,5sleep170-21swapper/1719:05:329
69515425144,4sleep100-21swapper/1019:07:252
69533925044,3sleep70-21swapper/719:09:4317
69533825044,3sleep60-21swapper/619:09:4216
69533724943,3sleep50-21swapper/519:09:4215
69527924739,5sleep10-21swapper/119:08:571
69522224739,5sleep190-21swapper/1919:08:1411
216599470,40ntpd0-21swapper/1419:05:236
69531624440,2sleep130-21swapper/1319:09:295
695705994343,0cyclictest0-21swapper/219:10:4712
695753994140,1cyclictest0-21swapper/1719:10:489
69522424032,5sleep00-21swapper/019:08:160
69512523933,3sleep120-21swapper/1219:07:074
695742993737,0cyclictest0-21swapper/1319:10:475
69570599360,34cyclictest740695-40tracker-miner-f20:00:4312
69570099365,0cyclictest0-21swapper/122:41:111
695737993534,1cyclictest205950irq/149-eno119:10:484
695700993534,1cyclictest958368-40tracker-miner-f00:19:441
69570599340,33cyclictest785166-40tracker-miner-f20:54:3112
69570599340,33cyclictest746955-40tracker-miner-f20:05:4812
69570599340,33cyclictest0-21swapper/223:40:0612
69570599340,33cyclictest0-21swapper/221:59:1012
69570599340,33cyclictest0-21swapper/220:38:3312
69570599340,33cyclictest0-21swapper/220:18:4112
69570599340,33cyclictest0-21swapper/219:35:5412
69575399335,26cyclictest0-21swapper/1722:36:189
695737993332,1cyclictest205950irq/149-eno123:55:004
695737993332,1cyclictest205950irq/149-eno123:31:024
695737993332,1cyclictest205950irq/149-eno123:05:144
695737993332,1cyclictest205950irq/149-eno123:02:334
695737993332,1cyclictest205950irq/149-eno122:05:244
695737993332,1cyclictest205950irq/149-eno122:00:224
695737993332,1cyclictest205950irq/149-eno121:57:394
695737993332,1cyclictest205950irq/149-eno121:49:584
695737993332,1cyclictest205950irq/149-eno121:49:574
695737993332,1cyclictest205950irq/149-eno121:36:334
695737993332,1cyclictest205950irq/149-eno121:18:224
695737993332,1cyclictest205950irq/149-eno121:14:034
695737993332,1cyclictest205950irq/149-eno121:00:394
695737993332,1cyclictest205950irq/149-eno120:58:554
695737993332,1cyclictest205950irq/149-eno120:31:564
695737993332,1cyclictest205950irq/149-eno120:26:454
695737993332,1cyclictest205950irq/149-eno120:06:164
695737993332,0cyclictest205950irq/149-eno100:38:584
695737993331,1cyclictest205950irq/149-eno120:02:184
695737993331,1cyclictest205950irq/149-eno119:48:064
69570599330,32cyclictest802009-40tracker-miner-f21:13:4112
69570599330,32cyclictest0-21swapper/223:52:1412
69570599330,32cyclictest0-21swapper/223:36:4712
69570599330,32cyclictest0-21swapper/223:32:1712
69570599330,32cyclictest0-21swapper/223:17:0312
69570599330,32cyclictest0-21swapper/222:59:0012
69570599330,32cyclictest0-21swapper/222:53:0312
69570599330,32cyclictest0-21swapper/222:38:3512
69570599330,32cyclictest0-21swapper/222:26:0712
69570599330,32cyclictest0-21swapper/222:13:2612
69570599330,32cyclictest0-21swapper/222:06:3512
69570599330,32cyclictest0-21swapper/222:04:2212
69570599330,32cyclictest0-21swapper/221:50:1512
69570599330,32cyclictest0-21swapper/221:50:1512
69570599330,32cyclictest0-21swapper/221:49:1212
69570599330,32cyclictest0-21swapper/221:49:1212
69570599330,32cyclictest0-21swapper/221:40:4112
69570599330,32cyclictest0-21swapper/221:40:4012
69570599330,32cyclictest0-21swapper/221:34:1712
69570599330,32cyclictest0-21swapper/221:16:2512
69570599330,32cyclictest0-21swapper/221:06:1012
69570599330,32cyclictest0-21swapper/221:00:4612
69570599330,32cyclictest0-21swapper/220:57:0312
69570599330,32cyclictest0-21swapper/220:30:3612
69570599330,32cyclictest0-21swapper/220:22:3112
69570599330,32cyclictest0-21swapper/220:10:4612
69570599330,32cyclictest0-21swapper/219:50:2212
69570599330,32cyclictest0-21swapper/219:45:0112
69570599330,32cyclictest0-21swapper/219:44:3312
69570599330,32cyclictest0-21swapper/219:34:4512
69570599330,32cyclictest0-21swapper/219:27:3312
69570599330,32cyclictest0-21swapper/219:21:2512
69570599330,32cyclictest0-21swapper/200:15:3112
69570599330,32cyclictest0-21swapper/200:05:0112
69570599330,0cyclictest0-21swapper/223:27:4612
695749993230,2cyclictest661216-21kworker/16:2+events22:58:208
69574799320,31cyclictest0-21swapper/1519:16:107
695737993232,0cyclictest205950irq/149-eno100:26:494
695737993231,1cyclictest205950irq/149-eno123:54:324
695737993231,1cyclictest205950irq/149-eno123:27:174
695737993231,1cyclictest205950irq/149-eno123:20:254
695737993231,1cyclictest205950irq/149-eno123:16:284
695737993231,1cyclictest205950irq/149-eno123:10:324
695737993231,1cyclictest205950irq/149-eno122:56:484
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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