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2024-04-24 - 11:17

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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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot3s.osadl.org (updated Wed Apr 24, 2024 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
341505997934,40cyclictest235-21systemd-journal22:12:542
34149799782,5cyclictest348729-21munin-run21:30:020
341505997518,51cyclictest235-21systemd-journal23:35:002
341497997529,42cyclictest1-21systemd20:35:010
34149799722,5cyclictest355876-21latency_hist23:45:020
341505997120,9cyclictest304-21in:imuxsock22:10:012
341497997016,44cyclictest16750irq/134-800000020:59:490
34150599697,51cyclictest347140-21munin-run21:00:002
34150799682,17cyclictest344522-21sshd20:07:483
34150799682,17cyclictest344522-21sshd20:07:483
341505996826,37cyclictest304-21in:imuxsock20:45:482
341505996826,37cyclictest304-21in:imuxsock20:45:482
341505996824,39cyclictest304-21in:imuxsock21:02:482
341505996821,42cyclictest351723-21grep22:25:012
341497996819,45cyclictest349739-21cron21:50:000
341505996728,35cyclictest356216-21sshd23:53:132
34150599665,15cyclictest355442-21cron23:40:012
34150599665,15cyclictest355442-21cron23:40:002
34149799661,4cyclictest356541-21munin-run00:00:010
34149799661,4cyclictest356541-21munin-run00:00:010
341497996612,27cyclictest12-21ksoftirqd/000:15:020
34150599655,17cyclictest347849-21cat21:10:022
34150599654,18cyclictest345046-21cron20:20:002
34149799653,18cyclictest355203-21munin-run23:35:000
34149799652,5cyclictest350802-21munin-run22:10:010
34150599645,18cyclictest353642-21modprobe23:05:002
34150599645,15cyclictest343186-21latency_hist19:40:022
34150599644,15cyclictest344024-21munin-run20:00:002
34150599644,14cyclictest354946-21sh23:30:002
34149799642,10cyclictest346310-21cat20:40:030
34150799633,16cyclictest344024-21munin-run20:00:003
34150799632,54cyclictest347144-21cut21:00:003
341507996321,22cyclictest37-21ksoftirqd/300:35:013
341507996311,48cyclictest350765-21sshd22:07:533
34150599636,13cyclictest307-21rs:main2
34150599635,20cyclictest235-21systemd-journal00:00:002
34150599635,20cyclictest235-21systemd-journal00:00:002
34150599633,17cyclictest354835-21cat23:25:022
341501996318,11cyclictest23-21ksoftirqd/121:55:001
34150599626,14cyclictest353383-21modprobe23:00:002
34150599625,17cyclictest353127-21cut22:55:002
34150599624,12cyclictest308-21systemd-logind19:25:012
34150599623,23cyclictest349677-21grep21:45:022
34149799622,5cyclictest343020-21munin-run19:40:010
34150599616,13cyclictest343782-21cat19:55:022
34150599616,13cyclictest343782-21cat19:55:022
34150599615,18cyclictest350307-21wc22:00:012
34150599615,13cyclictest345340-21grep20:25:002
34150599615,13cyclictest345340-21grep20:25:002
34150599613,17cyclictest349231-21systemctl21:40:012
341505996127,29cyclictest348776-21grep21:30:012
34149799613,17cyclictest357824-21munin-run00:25:000
341497996128,28cyclictest1-21systemd00:20:000
34149799612,13cyclictest347425-21munin-run21:05:010
34149799611,5cyclictest356236-21latency_hist23:55:020
341507996031,25cyclictest235-21systemd-journal21:55:003
34150799602,20cyclictest353125-21munin-run22:55:013
34150799602,19cyclictest355850-21latency_hist23:45:013
34150599606,12cyclictest346394-21grep20:45:012
34150599605,13cyclictest354420-21sendmail23:20:002
341505996026,30cyclictest274-21dbus-daemon20:10:022
341505996026,30cyclictest274-21dbus-daemon20:10:022
34150599602,20cyclictest355748-21unin-run23:45:002
341505996014,8cyclictest342740-21systemd-run19:34:592
34149799602,7cyclictest341933-21cron19:20:000
34149799601,17cyclictest347923-21munin-run21:15:000
34150799593,16cyclictest350298-21munin-run22:00:013
341507995931,24cyclictest356550-21wc00:00:013
341507995931,24cyclictest356550-21wc00:00:013
341507995927,29cyclictest352602-21sshd22:44:483
341507995917,37cyclictest341805-21latency_hist19:15:023
341507995916,36cyclictest0-21swapper/322:25:023
34150599595,13cyclictest344353-21latency_hist20:05:022
34150599594,16cyclictest352335-21modprobe22:39:592
34150599594,12cyclictest307-21rs:main2
34150599594,12cyclictest307-21rs:main2
34150599593,26cyclictest352973-21wc22:50:022
34150599593,14cyclictest358230-21latency_hist00:30:032
34150599593,14cyclictest358230-21latency_hist00:30:022
34150599592,16cyclictest356166-21grep23:50:022
34150199593,3cyclictest131rcu_preempt19:50:011
34149799593,9cyclictest355444-21cron23:40:000
34149799593,9cyclictest355444-21cron23:40:000
34149799593,16cyclictest352087-21munin-run22:35:000
341507995818,34cyclictest304-21in:imuxsock19:35:003
34150599585,10cyclictest308-21systemd-logind00:35:002
34150599584,15cyclictest308-21systemd-logind19:45:012
34150599584,15cyclictest308-21systemd-logind19:45:012
34150599584,14cyclictest346079-21cron20:40:002
34150599584,14cyclictest345592-21munin-run20:30:002
34150599584,12cyclictest357031-21munin-plugin-st00:10:002
34150599584,12cyclictest346878-21munin-run20:55:002
34150599583,16cyclictest235-21systemd-journal21:15:012
34150599583,12cyclictest341824-21grep19:15:022
34150599582,16cyclictest348184-21cron21:20:002
34150599582,16cyclictest348184-21cron21:20:002
34150599582,13cyclictest351306-21latency_hist22:20:002
34150599582,13cyclictest351306-21latency_hist22:20:002
341505995815,9cyclictest0-21swapper/219:20:002
34149799582,7cyclictest342239-21munin-run19:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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