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2025-05-02 - 12:45

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 50 highest latencies:
System rack0slot6s.osadl.org (updated Fri May 02, 2025 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
407661999907,36cyclictest0-21swapper/619:29:5616
407614526556,5sleep180-21swapper/1819:08:4610
175598540,51rtkit-daemon0-21swapper/819:07:4218
407600725347,3sleep120-21swapper/1219:07:004
407543424835,8sleep190-21swapper/1919:05:2711
195999480,42ntpd0-21swapper/1419:05:216
407598024744,2sleep100-21swapper/1019:06:372
407612924439,3sleep70-21swapper/719:08:3517
41615952430,0sleep3511rcuc/320:43:1813
407611724338,3sleep160-21swapper/1619:08:238
407270624339,2sleep170-21swapper/1719:05:049
1452912430,0sleep160-21swapper/1600:01:488
41095442420,0sleep80-21swapper/819:45:1718
407608024236,3sleep110-21swapper/1119:07:593
407599624237,3sleep20-21swapper/219:06:4912
407594224237,3sleep30-21swapper/319:06:1013
4076656994140,1cyclictest145584-40tracker-miner-f00:04:5810
407662499406,33cyclictest0-21swapper/722:44:5717
407611324030,5sleep130-21swapper/1319:08:205
4076645993937,2cyclictest0-21swapper/1422:54:596
4076632993939,0cyclictest0-21swapper/922:10:5819
4076632993938,1cyclictest78824-40tracker-miner-f22:48:5919
4076600993938,1cyclictest0-21swapper/022:41:590
4076600993833,5cyclictest0-21swapper/022:14:000
4076600993833,4cyclictest0-21swapper/023:09:590
407589223833,3sleep50-21swapper/519:05:3215
195999380,31ntpd0-21swapper/419:05:2114
4076654993736,1cyclictest47493-40tracker-miner-f22:10:589
407664599378,28cyclictest1501irq_work/1423:25:596
4076645993734,3cyclictest0-21swapper/1421:52:006
407664599371,35cyclictest0-21swapper/1423:50:596
407660099371,34cyclictest0-21swapper/000:04:590
407604523732,3sleep10-21swapper/119:07:281
407664599363,0cyclictest0-21swapper/1400:04:586
407622923634,1sleep150-21swapper/1519:09:427
407589323631,3sleep60-21swapper/619:05:3416
407665499350,35cyclictest0-21swapper/1720:41:599
4076645993530,5cyclictest0-21swapper/1422:13:596
4076627993533,1cyclictest312198-21CPU18
407661999350,34cyclictest0-21swapper/620:59:5916
4076617993533,1cyclictest312198-21CPU15
4076617993531,4cyclictest0-21swapper/519:28:0015
407661099350,34cyclictest4157108-40tracker-miner-f20:38:0013
407660099351,34cyclictest0-21swapper/023:50:590
407605323530,3sleep90-21swapper/919:07:3619
407665999340,33cyclictest0-21swapper/1900:38:3111
4076656993426,7cyclictest0-21swapper/1822:55:0010
407665099340,33cyclictest0-21swapper/1622:54:588
4076645993433,1cyclictest0-21swapper/1423:10:006
4076645993433,1cyclictest0-21swapper/1422:41:596
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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