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2024-04-19 - 23:29

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 Fri Apr 19, 2024 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26569142251215,27sleep20-21swapper/219:07:422
26571062250213,27sleep00-21swapper/019:09:570
26568552249213,12sleep50-21swapper/519:06:575
26567512249210,12sleep30-21swapper/319:05:353
26570222236215,12sleep40-21swapper/419:08:504
26568092236216,11sleep10-21swapper/119:06:211
26568142235214,12sleep60-21swapper/619:06:266
26567612234214,11sleep70-21swapper/719:05:397
2657369995050,0cyclictest2609080-21kworker/u16:3-events_unbound20:45:310
265736999500,50cyclictest0-21swapper/019:23:360
2657369994646,0cyclictest2679119-21kworker/0:2+events22:48:040
2657388994545,0cyclictest2636554-21kworker/7:2+events20:21:287
2657388994545,0cyclictest2636554-21kworker/7:2+events20:21:287
2657388994242,0cyclictest2700891-21kworker/7:2+events00:15:527
2657388994242,0cyclictest2672814-21kworker/7:1+events22:15:087
2657388994141,0cyclictest2636554-21kworker/7:2+events20:35:087
2657380993939,0cyclictest0-21swapper/423:24:574
2657380993938,1cyclictest0-21swapper/421:45:454
2657380993937,2cyclictest2638147-21kworker/4:0+events_power_efficient20:45:304
2657388993838,0cyclictest2636554-21kworker/7:2+events19:23:367
2657380993838,0cyclictest0-21swapper/421:34:094
2657369993838,0cyclictest0-21swapper/023:24:560
2657380993737,0cyclictest0-21swapper/423:08:584
265738099370,0cyclictest0-21swapper/421:50:164
2657369993737,0cyclictest0-21swapper/021:50:160
2657369993735,1cyclictest171ktimers/021:34:080
265738899360,34cyclictest0-21swapper/719:53:317
2657380993636,0cyclictest0-21swapper/420:53:474
2657380993636,0cyclictest0-21swapper/400:04:574
2657369993636,0cyclictest2638178-21kworker/0:1+events20:15:000
2657369993636,0cyclictest0-21swapper/021:45:440
2657369993635,1cyclictest0-21swapper/000:04:560
2657369993635,0cyclictest2638178-21kworker/0:1+events20:53:460
2657388993534,1cyclictest2672814-21kworker/7:1+events21:35:207
2657380993535,0cyclictest0-21swapper/423:32:504
2657380993535,0cyclictest0-21swapper/420:26:334
2657380993535,0cyclictest0-21swapper/420:26:324
2657369993535,0cyclictest2638178-21kworker/0:1+events22:17:320
2657369993534,1cyclictest0-21swapper/020:26:320
2657369993534,1cyclictest0-21swapper/020:26:320
2657369993534,0cyclictest0-21swapper/023:08:090
2657369993533,1cyclictest0-21swapper/000:16:160
2657388993434,0cyclictest2707938-21kworker/7:0+events00:31:057
2657388993434,0cyclictest2672814-21kworker/7:1+events23:21:007
2657388993434,0cyclictest2672814-21kworker/7:1+events23:19:537
2657388993434,0cyclictest2672814-21kworker/7:1+events22:04:567
2657388993434,0cyclictest2672814-21kworker/7:1+events21:33:227
2657388993434,0cyclictest2636554-21kworker/7:2+events20:42:277
2657388993434,0cyclictest2636554-21kworker/7:2+events20:05:047
2657388993434,0cyclictest2636554-21kworker/7:2+events19:56:257
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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