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2026-07-27 - 07:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #5

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 rack0slot5s.osadl.org (updated Mon Jul 27, 2026 00:45:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34001762390364,17sleep90-21swapper/915
34002102381376,3sleep30-21swapper/39
34001972358309,17sleep80-21swapper/814
34002602352309,16sleep130-21swapper/135
34004282347305,32sleep00-21swapper/00
34003612347306,15sleep50-21swapper/511
34003912341315,17sleep150-21swapper/157
34003792340315,16sleep40-21swapper/410
34002012340314,17sleep110-21swapper/113
34002402339314,16sleep100-21swapper/102
34003942338311,18sleep10-21swapper/11
34002422338312,17sleep120-21swapper/124
34002662337312,16sleep20-21swapper/28
34002722336310,17sleep70-21swapper/713
34001952336310,17sleep60-21swapper/612
34003352334308,17sleep140-21swapper/146
340084799457,25cyclictest0-21swapper/135
35866042400,0sleep70-21swapper/713
340084799390,26cyclictest0-21swapper/135
340084799380,14cyclictest0-21swapper/135
3400796993535,0cyclictest0-21swapper/00
340084799338,14cyclictest0-21swapper/135
340084799317,14cyclictest0-21swapper/135
340084799317,11cyclictest0-21swapper/135
3400843993131,0cyclictest0-21swapper/124
3400843993131,0cyclictest0-21swapper/124
3400851992926,3cyclictest1612-21snmpd6
340084399290,28cyclictest0-21swapper/124
3400826992927,1cyclictest1612-21snmpd13
340082699290,28cyclictest3805834-21updatedb13
340085599280,27cyclictest0-21swapper/157
3400843992827,1cyclictest1612-21snmpd4
3400836992827,1cyclictest1612-21snmpd2
3400836992824,4cyclictest1612-21snmpd2
3400833992826,2cyclictest1612-21snmpd15
340083399280,27cyclictest0-21swapper/915
340083199280,27cyclictest0-21swapper/814
340083199280,27cyclictest0-21swapper/814
340083199280,27cyclictest0-21swapper/814
3400826992828,0cyclictest0-21swapper/713
340082299280,27cyclictest0-21swapper/612
3400818992827,1cyclictest1612-21snmpd11
340081399280,27cyclictest0-21swapper/410
340081399280,27cyclictest0-21swapper/410
340081399280,27cyclictest0-21swapper/410
3400802992827,1cyclictest0-21swapper/28
340080299280,27cyclictest0-21swapper/28
340080299280,27cyclictest0-21swapper/28
3400796992827,1cyclictest1612-21snmpd0
3400855992726,1cyclictest1612-21snmpd7
3400855992726,1cyclictest1612-21snmpd7
3400855992726,1cyclictest0-21swapper/157
340085599270,27cyclictest0-21swapper/157
340085599270,27cyclictest0-21swapper/157
340085599270,27cyclictest0-21swapper/157
3400851992726,1cyclictest1612-21snmpd6
3400851992726,1cyclictest1612-21snmpd6
340085199270,27cyclictest0-21swapper/146
340085199270,27cyclictest0-21swapper/146
340085199270,27cyclictest0-21swapper/146
340085199270,1cyclictest0-21swapper/146
340085199270,1cyclictest0-21swapper/146
3400847992726,1cyclictest1612-21snmpd5
3400847992726,1cyclictest0-21swapper/135
3400843992726,1cyclictest1612-21snmpd4
340084399270,27cyclictest0-21swapper/124
340084399270,1cyclictest0-21swapper/124
340084399270,1cyclictest0-21swapper/124
340084199270,1cyclictest0-21swapper/113
3400833992726,1cyclictest1612-21snmpd15
3400833992726,1cyclictest0-21swapper/915
3400831992726,1cyclictest1612-21snmpd14
3400831992726,1cyclictest1612-21snmpd14
3400831992726,1cyclictest0-21swapper/814
3400826992725,1cyclictest1612-21snmpd13
340082699270,1cyclictest0-21swapper/713
340082699270,1cyclictest0-21swapper/713
3400822992726,1cyclictest1612-21snmpd12
3400822992726,1cyclictest0-21swapper/612
340082299270,27cyclictest0-21swapper/612
340082299270,27cyclictest0-21swapper/612
3400818992726,1cyclictest1612-21snmpd11
3400818992726,1cyclictest1612-21snmpd11
3400818992726,1cyclictest0-21swapper/511
340081899270,27cyclictest0-21swapper/511
3400813992726,1cyclictest0-21swapper/410
340080899270,27cyclictest0-21swapper/39
340080899270,27cyclictest0-21swapper/39
340080899270,27cyclictest0-21swapper/39
340080899270,27cyclictest0-21swapper/39
340080899270,27cyclictest0-21swapper/39
340080899270,1cyclictest0-21swapper/39
3400802992725,2cyclictest1612-21snmpd8
3400802992725,2cyclictest0-21swapper/28
3400799992726,1cyclictest1612-21snmpd1
3400799992726,1cyclictest0-21swapper/11
340079999270,27cyclictest0-21swapper/11
340079999270,27cyclictest0-21swapper/11
340079999270,27cyclictest0-21swapper/11
340079999270,27cyclictest0-21swapper/11
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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