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2024-06-20 - 07:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3s.osadl.org (updated Thu Jun 20, 2024 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3224554999995,2cyclictest0-21swapper/021:00:020
3224554998681,2cyclictest0-21swapper/022:10:010
322456299771,64cyclictest3239721-40mandb00:00:032
322455499731,3cyclictest0-21swapper/023:00:030
322455499731,3cyclictest0-21swapper/023:00:020
322455499691,65cyclictest0-21swapper/019:45:000
3224567996814,49cyclictest3239978-21true00:05:013
3224554996864,2cyclictest0-21swapper/022:05:020
322456299671,62cyclictest3227134-21sshd19:59:432
322456299661,61cyclictest3229791-21sshd20:47:442
322456299661,60cyclictest3230880-21munin-run21:10:012
3224567996515,42cyclictest274-21dbus-daemon21:00:013
322456299652,58cyclictest3237576-21cron23:17:012
322456299651,59cyclictest3239939-21sshd00:01:422
322456299643,56cyclictest3234998-21sshd22:27:542
322456299642,58cyclictest3238399-21munin-run23:35:002
322456299642,57cyclictest3228752-21sshd20:27:312
3224567996318,40cyclictest3232713-21wc21:45:013
322456299631,58cyclictest3232927-21sshd21:49:432
322456299631,58cyclictest3232927-21sshd21:49:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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