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2024-12-10 - 12:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 50 highest latencies:
System rack0slot3s.osadl.org (updated Mon Aug 26, 2024 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26026802251214,12sleep50-21swapper/519:08:165
26026662250230,13sleep00-21swapper/019:08:030
26026972249227,14sleep40-21swapper/419:08:314
26026422248211,29sleep30-21swapper/319:07:423
26027972238214,16sleep20-21swapper/219:09:492
26025882236214,14sleep60-21swapper/619:07:046
26025142236216,13sleep10-21swapper/119:06:031
26025382235215,13sleep70-21swapper/719:06:257
260308599350,34cyclictest0-21swapper/719:20:507
2603078993533,2cyclictest1822520-21snmpd23:42:044
2603083993434,0cyclictest1822520-21snmpd21:14:396
2603080993414,0cyclictest0-21swapper/522:26:145
2603078993433,1cyclictest1822520-21snmpd19:22:474
2603085993332,1cyclictest1822520-21snmpd23:26:377
2603072993332,1cyclictest1822520-21snmpd23:35:462
260308599320,29cyclictest2962-21gnome-shell20:44:597
2603067993219,13cyclictest1822520-21snmpd20:25:160
2603085993131,0cyclictest0-21swapper/700:06:327
2603083993130,1cyclictest1822520-21snmpd21:45:286
2603067993130,1cyclictest0-21swapper/020:32:100
2603085993029,1cyclictest1822520-21snmpd21:06:547
2603080992929,0cyclictest0-21swapper/521:41:585
2603080992928,1cyclictest0-21swapper/521:21:305
2603078992927,2cyclictest0-21swapper/421:30:574
2603074992925,2cyclictest0-21swapper/321:27:423
2603069992928,1cyclictest1822520-21snmpd19:51:181
2603069992928,1cyclictest1822520-21snmpd19:51:181
2603067992928,1cyclictest1822520-21snmpd22:56:240
2603083992828,0cyclictest1822520-21snmpd20:50:596
2603080992827,1cyclictest1822520-21snmpd00:23:385
2603085992727,0cyclictest0-21swapper/720:51:137
260307299270,27cyclictest0-21swapper/222:44:022
2603069992725,2cyclictest0-21swapper/122:04:191
2603067992726,1cyclictest1822520-21snmpd19:57:300
2603085992626,0cyclictest0-21swapper/721:03:037
2603085992625,1cyclictest0-21swapper/722:30:147
2603085992625,1cyclictest0-21swapper/719:41:367
2603080992626,0cyclictest0-21swapper/522:45:295
2603074992626,0cyclictest0-21swapper/323:35:463
260306999260,25cyclictest0-21swapper/120:00:391
2603067992626,0cyclictest0-21swapper/023:14:390
2603085992525,0cyclictest0-21swapper/722:52:007
2603085992521,4cyclictest1822520-21snmpd20:14:317
2603085992520,4cyclictest1822520-21snmpd23:16:547
260308599250,1cyclictest0-21swapper/720:08:377
2603083992521,2cyclictest2543772-21kworker/6:0+events00:31:256
2603083992521,2cyclictest0-21swapper/619:16:516
2603078992524,0cyclictest0-21swapper/400:30:124
260307499250,22cyclictest0-21swapper/321:50:463
2603069992525,0cyclictest0-21swapper/121:47:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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