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2026-04-29 - 10:26

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 Wed Apr 29, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12851002289252,30sleep40-21swapper/419:09:0814
12849352269262,4sleep80-21swapper/819:06:5118
12849552261254,4sleep30-21swapper/319:07:0613
12849582257251,4sleep60-21swapper/619:07:1016
12849162257250,4sleep150-21swapper/1519:06:397
12851102256236,11sleep140-21swapper/1419:09:186
12850602242203,13sleep120-21swapper/1219:08:364
12849502241234,4sleep190-21swapper/1919:07:0211
12851132240220,12sleep170-21swapper/1719:09:219
12849642238230,5sleep110-21swapper/1119:07:143
12849812235215,12sleep50-21swapper/519:07:2815
12850172234216,11sleep160-21swapper/1619:08:018
12849252233213,13sleep20-21swapper/219:06:4512
12850862232213,12sleep130-21swapper/1319:08:575
12850942231212,11sleep00-21swapper/019:09:040
12850482231212,11sleep10-21swapper/119:08:251
12849372231211,12sleep90-21swapper/919:06:5219
12850832230211,12sleep100-21swapper/1019:08:542
12849192230211,12sleep180-21swapper/1819:06:4110
12849342225205,12sleep70-21swapper/719:06:5017
1285541999726,36cyclictest0-21swapper/922:31:2719
128553899656,36cyclictest0-21swapper/819:16:2618
1285564993812,0cyclictest1591irq_work/1520:08:067
128557599350,0cyclictest0-21swapper/1919:47:5911
128557599340,0cyclictest0-21swapper/1920:34:5911
1285575993333,0cyclictest0-21swapper/1920:54:5911
128555499320,0cyclictest0-21swapper/1220:07:594
128557099310,31cyclictest0-21swapper/1719:44:599
1285559993131,0cyclictest0-21swapper/1319:44:595
1285541993131,0cyclictest0-21swapper/921:25:0019
1285532993131,0cyclictest0-21swapper/521:04:5915
1285524993131,0cyclictest0-21swapper/320:04:0013
128552299310,30cyclictest0-21swapper/200:29:5912
1285570993030,0cyclictest0-21swapper/1720:09:599
128555099300,0cyclictest0-21swapper/1120:10:593
128553799300,0cyclictest0-21swapper/723:49:5917
1285534993030,0cyclictest0-21swapper/620:13:0016
128553499300,30cyclictest0-21swapper/619:35:5916
1285524993029,0cyclictest0-21swapper/320:34:5913
1285575992929,0cyclictest0-21swapper/1920:20:5911
1285566992929,0cyclictest0-21swapper/1621:14:598
128556699290,29cyclictest0-21swapper/1621:33:598
128556699290,29cyclictest0-21swapper/1621:33:598
1285564992929,0cyclictest0-21swapper/1519:55:597
128556499290,29cyclictest0-21swapper/1519:41:597
1285559992929,0cyclictest0-21swapper/1320:09:595
1285554992929,0cyclictest0-21swapper/1221:27:594
1285538992929,0cyclictest0-21swapper/820:43:5918
128553299290,28cyclictest0-21swapper/521:59:5915
1285524992929,0cyclictest0-21swapper/320:59:5913
1285524992929,0cyclictest0-21swapper/319:47:5913
1285524992929,0cyclictest0-21swapper/319:40:5913
1285517992928,1cyclictest0-21swapper/119:36:591
1285575992828,0cyclictest0-21swapper/1921:18:5911
1285566992828,0cyclictest0-21swapper/1623:48:588
1285566992828,0cyclictest0-21swapper/1619:45:598
1285561992828,0cyclictest0-21swapper/1421:04:596
1285554992828,0cyclictest0-21swapper/1223:02:584
128555099280,28cyclictest0-21swapper/1100:03:593
1285541992828,0cyclictest0-21swapper/919:26:0019
1285538992828,0cyclictest0-21swapper/820:08:0718
1285534992828,0cyclictest0-21swapper/623:01:5916
1285534992828,0cyclictest0-21swapper/620:16:5916
1285534992828,0cyclictest0-21swapper/600:36:0016
128553499280,28cyclictest0-21swapper/623:12:5916
1285524992828,0cyclictest0-21swapper/323:44:5913
1285522992828,0cyclictest0-21swapper/219:37:0012
128552299280,28cyclictest0-21swapper/223:29:5912
1285575992727,0cyclictest0-21swapper/1921:39:5911
1285575992727,0cyclictest0-21swapper/1921:39:5911
1285575992727,0cyclictest0-21swapper/1920:14:5911
1285575992727,0cyclictest0-21swapper/1919:59:2211
1285575992727,0cyclictest0-21swapper/1900:34:3111
1285570992727,0cyclictest0-21swapper/1720:25:009
1285570992727,0cyclictest0-21swapper/1719:29:009
1285566992727,0cyclictest0-21swapper/1621:24:598
1285566992727,0cyclictest0-21swapper/1621:10:008
1285564992727,0cyclictest0-21swapper/1520:26:597
1285554992727,0cyclictest0-21swapper/1221:23:594
1285554992727,0cyclictest0-21swapper/1219:44:594
1285541992727,0cyclictest1-21systemd21:34:5919
1285541992727,0cyclictest1-21systemd21:34:5919
1285541992727,0cyclictest0-21swapper/920:08:0019
1285541992727,0cyclictest0-21swapper/919:43:5919
1285541992727,0cyclictest0-21swapper/919:11:0719
1285534992727,0cyclictest0-21swapper/622:57:5916
1285534992727,0cyclictest0-21swapper/621:21:5916
1285527992727,0cyclictest0-21swapper/421:03:5914
1285524992727,0cyclictest0-21swapper/320:54:5913
1285575992626,0cyclictest0-21swapper/1920:08:0011
1285566992626,0cyclictest0-21swapper/1620:39:598
1285566992626,0cyclictest0-21swapper/1600:06:588
1285561992626,0cyclictest0-21swapper/1421:50:596
1285559992626,0cyclictest0-21swapper/1320:24:595
1285559992626,0cyclictest0-21swapper/1319:28:595
1285554992626,0cyclictest0-21swapper/1222:58:584
1285554992626,0cyclictest0-21swapper/1222:51:594
1285554992626,0cyclictest0-21swapper/1221:04:594
1285550992626,0cyclictest0-21swapper/1121:10:593
1285546992626,0cyclictest0-21swapper/1021:14:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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