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2025-08-30 - 02:45

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 Sat Aug 30, 2025 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19095242252211,12sleep150-21swapper/1519:08:437
19095152246225,13sleep80-21swapper/819:08:3618
19094832246227,12sleep20-21swapper/219:08:1012
19093882244204,12sleep70-21swapper/719:06:5417
19093692240221,12sleep140-21swapper/1419:06:416
19096292239201,12sleep50-21swapper/519:09:5315
19095712239199,13sleep40-21swapper/419:09:1214
19094212238219,12sleep130-21swapper/1319:07:215
19094692236217,12sleep120-21swapper/1219:08:004
19096102235214,13sleep160-21swapper/1619:09:448
19092752233212,13sleep190-21swapper/1919:05:4611
19092742233212,13sleep180-21swapper/1819:05:4510
19093542232190,12sleep60-21swapper/619:06:3316
19095852230210,12sleep170-21swapper/1719:09:259
19094192226206,12sleep110-21swapper/1119:07:193
19094022225204,13sleep00-21swapper/019:07:070
19094082222202,12sleep10-21swapper/119:07:081
19094412221201,13sleep100-21swapper/1019:07:382
19094592217198,12sleep30-21swapper/319:07:5113
19092632209188,13sleep90-21swapper/919:05:3619
191002199534,30cyclictest0-21swapper/1222:12:464
1910025993629,6cyclictest0-21swapper/1320:05:005
191002199340,1cyclictest2010826-21awk21:05:004
1910011993331,1cyclictest0-21swapper/920:20:0019
191003399320,31cyclictest0-21swapper/1600:29:598
191001199320,31cyclictest0-21swapper/922:05:1219
191000099310,31cyclictest0-21swapper/720:55:0017
190998999310,0cyclictest0-21swapper/320:50:0013
1910025993030,0cyclictest0-21swapper/1320:45:005
1910017993029,0cyclictest0-21swapper/1100:34:593
191001599300,29cyclictest0-21swapper/1021:38:592
1910011993029,1cyclictest2192400-21awk00:34:5919
1910000993029,0cyclictest0-21swapper/720:20:0017
190998599300,30cyclictest0-21swapper/220:40:0012
190998599300,30cyclictest0-21swapper/220:40:0012
1909979993029,1cyclictest1905231-21kworker/0:0+kacpi_notify21:50:190
1910042992929,0cyclictest192550irq/149-eno119:42:4711
1910042992928,1cyclictest192550irq/149-eno121:15:3511
1910026992925,3cyclictest1989235-21sed20:40:006
1910026992925,3cyclictest1989235-21sed20:40:006
1910017992828,0cyclictest0-21swapper/1121:00:003
191001599280,27cyclictest0-21swapper/1023:39:402
191001599280,27cyclictest0-21swapper/1022:41:212
191001599280,27cyclictest0-21swapper/1022:12:442
191001599280,27cyclictest0-21swapper/1022:09:122
191001599280,27cyclictest0-21swapper/1020:44:332
1910011992828,0cyclictest0-21swapper/922:12:4519
1910011992827,1cyclictest0-21swapper/921:32:5919
1909997992828,0cyclictest0-21swapper/623:44:5916
1909995992826,2cyclictest2188097-21basename00:29:5915
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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