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2024-05-23 - 11:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #3

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 20 highest latencies:
System rack1slot3s.osadl.org (updated Tue May 26, 2020 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14699916690,1668cyclictest1204-21snmpd19:33:437
14429916550,1654cyclictest1204-21snmpd23:49:350
14429916532,1650cyclictest1204-21snmpd21:44:090
14429916491,1647cyclictest1204-21snmpd21:34:070
14539916471,1645cyclictest29729-21sensors20:05:083
14539916470,1646cyclictest17480-21sensors19:40:093
14569916462,1643cyclictest1204-21snmpd00:09:374
14539916410,1640cyclictest10268-21sensors22:45:103
14539916400,1639cyclictest2939-21sensors19:10:093
14509916402,1637cyclictest1204-21snmpd23:54:362
14569916380,1637cyclictest30588-21sensors22:20:104
14459916361,1634cyclictest5417-21sensors22:35:091
14459916361,1634cyclictest5417-21sensors22:35:081
14539916320,1631cyclictest11198-21sensors21:40:113
14459916302,1627cyclictest1204-21snmpd23:09:261
14569916292,1626cyclictest1204-21snmpd22:49:234
14649916282,1625cyclictest1204-21snmpd21:19:056
14609916271,1625cyclictest1204-21snmpd19:48:465
14649916240,1623cyclictest1204-21snmpd21:04:026
14509916220,1621cyclictest23311-21sensors22:05:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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