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2025-04-21 - 06:59

OSADL QA Farm on Real-time of Mainline Linux

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

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.

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 r0s0s.osadl.org (updated Mon Apr 21, 2025 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10612212302275,19sleep70-21swapper/719:05:497
10612992295260,12sleep10-21swapper/119:06:551
10612852294277,10sleep50-21swapper/519:06:435
10615112293259,26sleep60-21swapper/619:09:506
10613732291257,26sleep00-21swapper/019:07:510
10614432290255,12sleep30-21swapper/319:08:503
10614602288268,13sleep20-21swapper/219:09:072
10612362287268,12sleep40-21swapper/419:06:024
1062263994444,0cyclictest0-21swapper/622:27:196
1062263993534,1cyclictest674172-21in:imklog19:12:076
1062258993532,2cyclictest1161745-21kworker/u16:0+flush-8:023:15:271
1062264993429,4cyclictest833-21snmpd00:22:447
1062263993332,1cyclictest674172-21in:imklog23:38:196
1062263993332,1cyclictest1161745-21kworker/u16:0-flush-8:023:06:076
1062263993330,3cyclictest833-21snmpd20:01:446
1062262993330,2cyclictest1167850-21cat23:10:155
106226299330,30cyclictest0-21swapper/500:38:295
1062260993330,2cyclictest833-21snmpd20:47:553
1062257993330,2cyclictest833-21snmpd23:05:170
1062257993330,2cyclictest833-21snmpd00:22:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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