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2024-04-26 - 13:11

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 50 highest latencies:
System rack0slot5s.osadl.org (updated Fri Apr 26, 2024 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41612732405399,4sleep60-21swapper/619:06:4612
41613812404397,4sleep30-21swapper/319:08:189
41612892399393,4sleep150-21swapper/1519:06:547
41614002397391,4sleep40-21swapper/419:08:3610
41613032397391,4sleep120-21swapper/1219:07:074
41611882397391,4sleep80-21swapper/819:05:2714
41614152396390,4sleep20-21swapper/219:08:508
41614062395389,4sleep100-21swapper/1019:08:422
41612042395388,4sleep70-21swapper/719:05:4313
41613422394387,5sleep00-21swapper/019:07:440
41614582393387,4sleep90-21swapper/919:09:2915
41612462393387,4sleep130-21swapper/1319:06:205
41612172393386,4sleep10-21swapper/119:05:531
41612022392386,4sleep50-21swapper/519:05:4111
41613192391385,4sleep110-21swapper/1119:07:233
41612882390384,4sleep140-21swapper/1419:06:536
416181699347,27cyclictest0-21swapper/720:57:2913
416180799317,11cyclictest0-21swapper/419:20:2510
416180799316,25cyclictest0-21swapper/421:21:1510
416182199290,27cyclictest0-21swapper/820:30:1414
416184299280,27cyclictest0-21swapper/1523:59:457
416183799280,27cyclictest0-21swapper/1400:36:466
416183299280,27cyclictest0-21swapper/1221:37:284
4161826992827,1cyclictest1005269-21snmpd23:04:012
416182199280,27cyclictest0-21swapper/823:15:1214
416182199280,27cyclictest0-21swapper/819:23:2114
416181699280,27cyclictest0-21swapper/723:24:0513
416181499280,27cyclictest0-21swapper/622:54:3912
4161811992827,1cyclictest1005269-21snmpd20:47:1111
416181199280,27cyclictest0-21swapper/522:20:0311
416180799280,27cyclictest0-21swapper/423:53:3710
416180599280,27cyclictest0-21swapper/321:21:439
416180599280,27cyclictest0-21swapper/319:58:429
416180199280,27cyclictest0-21swapper/222:57:108
416180199280,27cyclictest0-21swapper/221:49:018
416180199280,27cyclictest0-21swapper/220:35:128
416179699280,27cyclictest0-21swapper/123:42:271
416179699280,27cyclictest0-21swapper/122:09:201
416179199280,27cyclictest0-21swapper/000:06:330
4161835992726,1cyclictest1005269-21snmpd22:55:185
4161835992726,1cyclictest1005269-21snmpd19:33:515
4161832992726,1cyclictest1005269-21snmpd23:56:224
416183299270,27cyclictest0-21swapper/1220:40:064
416182899270,26cyclictest0-21swapper/1121:45:293
4161826992726,1cyclictest1005269-21snmpd23:17:192
4161826992726,1cyclictest1005269-21snmpd19:38:292
4161823992726,1cyclictest1005269-21snmpd23:24:4215
4161823992726,1cyclictest1005269-21snmpd22:43:4515
4161823992726,1cyclictest1005269-21snmpd21:19:4615
416182399270,1cyclictest0-21swapper/900:06:0115
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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