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2026-01-09 - 16:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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.

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 rack0slot1s.osadl.org (updated Thu Jan 08, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3106999125122,3cyclictest37-21ksoftirqd/311:48:413
3106599109109,0cyclictest192950irq/36-eth1-rx-11:48:562
3107699104103,1cyclictest0-21swapper/411:38:274
3105999102102,0cyclictest192950irq/36-eth1-rx-09:16:191
31093999796,1cyclictest0-21swapper/711:20:567
31048999494,0cyclictest192950irq/36-eth1-rx-11:38:270
31065998484,0cyclictest29-21ksoftirqd/210:17:542
31059996666,0cyclictest21-21ksoftirqd/111:40:001
3069626241,18sleep70-21swapper/707:07:497
3069526141,17sleep60-21swapper/607:07:486
31086995655,1cyclictest0-21swapper/611:48:566
3069424222,17sleep50-21swapper/507:07:485
3069324230,8sleep40-21swapper/407:07:474
2995724221,17sleep20-21swapper/207:05:202
31076994038,1cyclictest192950irq/36-eth1-rx-08:56:564
31093993937,1cyclictest0-21swapper/708:37:457
300742390,0sleep50-21swapper/510:40:155
3068923717,17sleep00-21swapper/007:07:430
3073723615,18sleep10-21swapper/107:08:241
3053723616,17sleep30-21swapper/307:05:373
31048993130,1cyclictest0-21swapper/008:56:560
31086993029,1cyclictest0-21swapper/610:17:546
31076992827,1cyclictest0-21swapper/410:09:194
3108299191,17cyclictest0-21swapper/511:50:135
31048991919,0cyclictest3-21ksoftirqd/010:09:190
3108699180,2cyclictest0-21swapper/612:24:306
3108699180,2cyclictest0-21swapper/612:24:296
3108699170,2cyclictest0-21swapper/611:55:296
3108699170,2cyclictest0-21swapper/609:48:596
3108299170,1cyclictest0-21swapper/507:20:185
3109399160,15cyclictest0-21swapper/709:13:447
3108699160,2cyclictest0-21swapper/607:58:286
3108699160,13cyclictest0-21swapper/607:19:296
3108299160,1cyclictest0-21swapper/508:21:585
31069991614,1cyclictest0-21swapper/311:08:063
3109399150,12cyclictest0-21swapper/711:51:447
3109399150,12cyclictest0-21swapper/710:43:447
107342150,0sleep40-21swapper/410:51:444
31093991412,1cyclictest0-21swapper/711:48:417
3109399140,12cyclictest0-21swapper/710:56:437
3109399140,11cyclictest0-21swapper/710:16:307
3107699140,13cyclictest0-21swapper/409:52:144
3107699140,13cyclictest0-21swapper/409:11:444
3106999140,13cyclictest0-21swapper/309:00:203
31093991310,2cyclictest0-21swapper/711:08:307
3108699130,1cyclictest0-21swapper/610:40:146
3108699130,13cyclictest0-21swapper/608:59:596
31082991310,2cyclictest0-21swapper/507:47:445
3107699131,1cyclictest0-21swapper/411:08:004
3107699130,1cyclictest0-21swapper/411:11:154
3107699130,1cyclictest0-21swapper/409:55:454
3107699130,12cyclictest0-21swapper/409:41:144
31059991311,1cyclictest2536-21lldpd10:46:351
31086991210,2cyclictest0-21swapper/608:30:166
3108699120,2cyclictest0-21swapper/609:31:586
3107699120,11cyclictest0-21swapper/411:30:304
3107699120,11cyclictest0-21swapper/410:37:294
31059991212,0cyclictest2487-21snmpd10:06:441
3104899127,2cyclictest0-21swapper/011:20:000
3104899121,2cyclictest0-21swapper/011:10:110
31048991212,0cyclictest2487-21snmpd11:54:140
3104899121,10cyclictest0-21swapper/008:30:000
3104899120,9cyclictest0-21swapper/008:25:010
3109399115,5cyclictest17858-21cpuspeed_turbos10:30:097
3109399110,8cyclictest9420-21perf07:30:007
3109399110,0cyclictest0-21swapper/711:55:147
3108299115,4cyclictest183050irq/39-eth009:44:245
3108299114,6cyclictest17135-21irqstats10:00:115
3108299110,2cyclictest0-21swapper/510:48:005
3108299110,1cyclictest10888-21sh10:51:575
3108299110,10cyclictest0-21swapper/512:20:135
3108299110,10cyclictest0-21swapper/512:20:135
31069991111,0cyclictest2487-21snmpd12:14:303
31069991111,0cyclictest2487-21snmpd08:45:293
3106599110,1cyclictest0-21swapper/209:15:372
3104899118,2cyclictest0-21swapper/010:20:000
3104899118,2cyclictest0-21swapper/007:25:190
3104899118,1cyclictest0-21swapper/009:40:120
3104899111,9cyclictest0-21swapper/008:15:010
3104899111,9cyclictest0-21swapper/008:15:010
3104899110,9cyclictest0-21swapper/010:31:000
3104899110,9cyclictest0-21swapper/010:26:380
3104899110,9cyclictest0-21swapper/009:45:540
3104899110,9cyclictest0-21swapper/009:25:570
3104899110,9cyclictest0-21swapper/007:45:150
3104899110,8cyclictest0-21swapper/010:15:000
3104899110,7cyclictest0-21swapper/010:05:000
3104899110,10cyclictest3649-21latency_hist12:35:000
3104899110,10cyclictest3649-21latency_hist12:35:000
3104899110,10cyclictest0-21swapper/011:25:010
3109399101,2cyclictest0-21swapper/707:58:587
3109399100,2cyclictest0-21swapper/712:17:097
3108699101,8cyclictest0-21swapper/611:42:226
3108299109,1cyclictest0-21swapper/508:48:305
3108299103,6cyclictest31313-21munin-node11:40:195
3108299101,8cyclictest16047-21crond09:30:005
3108299101,8cyclictest0-21swapper/510:40:005
3108299101,6cyclictest0-21swapper/511:22:245
3108299101,6cyclictest0-21swapper/510:21:095
3108299100,8cyclictest21607-21grep09:00:125
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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