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2024-04-24 - 10:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

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: 50.5 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 rack5slot7s.osadl.org (updated Wed Apr 24, 2024 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25257224472203,98sleep00-21swapper19:08:370
254649916118,119cyclictest10357-21apt-get00:15:230
254649916015,122cyclictest8861-21diskstats00:05:390
254649916012,124cyclictest32220-21cron23:10:000
254649916011,121cyclictest30779-21apt-get19:46:430
254649915920,26cyclictest909-21memory23:15:470
254649915911,124cyclictest12837-21grep00:26:080
254649915827,47cyclictest15629-21kworker/u2:922:10:170
254649915812,40cyclictest15622-21sshd21:30:160
254649915725,110cyclictest31906-21apt-get19:50:170
254649915715,120cyclictest21314-21apt-get22:06:290
254649915713,100cyclictest16577-21/usr/sbin/munin21:35:550
254649915712,44cyclictest5378-21unixbench_singl23:41:100
254649915710,104cyclictest26182-21head19:11:070
254649915619,110cyclictest14995-21memory21:25:490
254649915615,117cyclictest20494-21apt22:00:020
254649915610,24cyclictest10301-21http00:15:070
254649915519,27cyclictest23242-21apt-get22:15:200
254649915517,113cyclictest10972-21memory21:00:480
254649915514,23cyclictest13835-21munin-run21:20:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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