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2025-11-15 - 14:29

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 Sat Nov 15, 2025 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2894458999687,7cyclictest30-21ksoftirqd/219:25:032
2894445999441,17cyclictest1-21systemd00:00:010
2894445999441,17cyclictest1-21systemd00:00:010
2894451997754,17cyclictest23-21ksoftirqd/122:20:021
2894451996728,35cyclictest2902965-21latency_hist21:55:021
2894451996728,35cyclictest2902965-21latency_hist21:55:011
289445199632,14cyclictest2903263-21munin-run22:00:011
289445199622,6cyclictest2908694-21munin-run23:45:001
289445199622,6cyclictest2900652-21munin-run21:10:001
289445199622,5cyclictest2909998-21munin-run00:10:011
289445199622,53cyclictest271-21cron22:20:001
289445199621,6cyclictest2902716-21munin-run21:50:011
289445199612,10cyclictest2909478-40mandb00:00:011
289445199612,10cyclictest2909478-40mandb00:00:001
289445199611,7cyclictest2911253-21sshd00:30:451
289445199611,6cyclictest2908137-21sshd23:32:451
2894458996021,23cyclictest30-21ksoftirqd/223:55:012
2894458996012,16cyclictest2904441-21cut22:20:012
289445199604,51cyclictest2900865-21modprobe21:12:461
289445199603,52cyclictest2901192-21munin-run21:20:011
289445199602,5cyclictest2897512-21munin-run20:10:001
289445199601,3cyclictest2899812-21sshd20:51:581
289445199592,6cyclictest2905832-21munin-run22:50:001
289445199591,6cyclictest2903723-21sshd22:07:121
289445199591,6cyclictest2903723-21sshd22:07:121
289445199583,5cyclictest2910539-21munin-run00:20:011
289445199582,5cyclictest363-21snmpd20:36:061
289445199582,5cyclictest2895988-21munin-run19:40:021
289445199582,5cyclictest2895440-21munin-run19:29:591
289445199582,49cyclictest2899585-21cron20:50:011
289445199582,49cyclictest2899585-21cron20:50:001
289445199582,21cyclictest2908422-21munin-run23:39:591
289445199582,21cyclictest2905069-21cat22:35:021
289445199581,6cyclictest2902228-21munin-run21:40:011
289445199581,6cyclictest2899305-21sshd20:41:451
289445199581,5cyclictest363-21snmpd20:26:031
289445199581,4cyclictest363-21snmpd19:30:531
289445199581,4cyclictest2901916-21sshd21:34:461
2894461995710,15cyclictest2905061-21systemd-run22:35:013
289445199571,9cyclictest363-21snmpd00:29:171
289445199571,4cyclictest2910203-21sshd00:11:451
289445199571,4cyclictest2909478-40mandb00:00:031
289445199571,4cyclictest2907924-21munin-run23:30:011
289445199571,4cyclictest2907353-21sshd23:17:461
289445199571,4cyclictest2907353-21sshd23:17:461
289445199571,4cyclictest2894891-21sshd19:19:441
289445199571,4cyclictest2894617-21sshd19:11:441
289445199571,3cyclictest363-21snmpd20:00:591
289445199571,3cyclictest363-21snmpd20:00:581
289444599575,44cyclictest2900082-21modprobe21:00:000
289445199562,6cyclictest235-21systemd-journal19:50:281
289445199562,5cyclictest363-21snmpd21:26:171
289445199562,5cyclictest363-21snmpd21:26:161
289445199562,4cyclictest363-21snmpd23:46:181
289445199562,13cyclictest2909255-21latency_hist23:55:011
289445199561,5cyclictest363-21snmpd20:31:051
289445199561,5cyclictest363-21snmpd20:31:051
289445199561,5cyclictest363-21snmpd20:11:011
289445199561,4cyclictest363-21snmpd21:21:151
289445199561,4cyclictest2903987-21sshd22:14:451
289445199561,4cyclictest2898304-21munin-run20:25:001
289445199555,44cyclictest0-21swapper/123:15:011
289445199553,5cyclictest363-21snmpd20:59:161
289445199552,6cyclictest2906343-21munin-run23:00:001
289445199552,5cyclictest363-21snmpd23:01:331
289445199551,4cyclictest2910759-21sshd00:24:451
289445199551,14cyclictest2911577-21true00:40:011
289445199551,12cyclictest363-21snmpd22:26:271
289444599559,41cyclictest308-21rs:main0
289444599556,36cyclictest19050irq/34-mmc122:05:030
289444599556,36cyclictest19050irq/34-mmc122:05:020
289445199542,5cyclictest2905309-21munin-run22:40:001
289445199542,13cyclictest363-21snmpd22:00:391
289445199541,5cyclictest2905544-21sshd22:40:451
289445199541,4cyclictest363-21snmpd21:41:201
289445199541,4cyclictest363-21snmpd19:40:541
2894461995337,11cyclictest2898029-21cat20:20:013
289445199533,5cyclictest363-21snmpd19:20:571
289445199531,9cyclictest363-21snmpd19:56:061
289445199531,6cyclictest363-21snmpd23:08:271
289445199531,4cyclictest2896452-21sshd19:46:451
2894445995333,15cyclictest2904252-21cron22:20:000
289445199522,4cyclictest2898033-21munin-run20:20:001
2894458995127,19cyclictest2906531-21sed23:00:012
2894458995125,21cyclictest2898637-21sed20:30:022
2894458995125,21cyclictest2896365-21latency_hist19:45:022
289445199515,41cyclictest2894453-21latency_hist19:10:011
289445199512,4cyclictest0-21swapper/123:23:111
289445199511,12cyclictest0-21swapper/121:05:011
289445199511,12cyclictest0-21swapper/121:05:011
2894445995132,13cyclictest2895963-21tr19:40:010
2894461995034,12cyclictest272-21dbus-daemon21:55:013
2894461995034,12cyclictest272-21dbus-daemon21:55:003
2894458995039,8cyclictest30-21ksoftirqd/200:35:102
2894458995034,12cyclictest1-21systemd19:15:002
2894458995021,24cyclictest2900171-21latency_hist21:00:022
289445199501,45cyclictest2906078-21sh22:55:001
289444599505,28cyclictest2911540-21modprobe00:40:000
2894445995034,9cyclictest306-21in:imuxsock22:00:010
289446199494,10cyclictest131rcu_preempt00:40:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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