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2025-12-17 - 08:53

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 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: 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 Dec 17, 2025 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
535998997470,2cyclictest0-21swapper/023:25:020
53599899745,22cyclictest536200-21munin-run19:15:000
53599899742,66cyclictest541639-21munin-run21:00:000
535998997310,17cyclictest546815-21cron22:40:000
535998997167,2cyclictest0-21swapper/023:15:020
535998997125,38cyclictest0-21swapper/023:40:010
535998996965,2cyclictest0-21swapper/000:20:030
53599899694,13cyclictest538795-21modprobe20:05:000
535998996911,52cyclictest1-21systemd22:55:000
536014996840,21cyclictest37-21ksoftirqd/300:10:583
535998996822,41cyclictest1-21systemd20:40:010
535998996822,41cyclictest1-21systemd20:40:010
53599899673,18cyclictest542166-21sendmail21:10:000
535998996726,37cyclictest545816-21sendmail22:20:010
53599899671,23cyclictest548392-21grep23:10:000
536009996614,14cyclictest552487-21latency_hist00:25:012
53599899662,7cyclictest547978-21sed23:00:020
535998996624,36cyclictest0-21swapper/021:50:000
535998996624,36cyclictest0-21swapper/021:50:000
53599899662,16cyclictest553095-21cron00:39:590
535998996618,4cyclictest19350irq/34-mmc121:20:010
53599899661,5cyclictest547118-21munin-run22:45:010
535998996610,15cyclictest238-21systemd-journal00:00:010
53599899652,17cyclictest539305-21munin-run20:15:000
53599899652,16cyclictest539575-21systemctl20:20:000
53599899646,13cyclictest541370-21modprobe20:55:000
536009996344,16cyclictest540078-21sshd20:28:562
536009996344,15cyclictest541614-21sshd20:59:562
53599899634,21cyclictest540351-21cut20:35:000
535998996325,33cyclictest0-21swapper/021:01:570
53599899632,27cyclictest551338-21latency_hist00:05:010
53599899632,24cyclictest364-21snmpd23:15:390
536009996145,12cyclictest546306-21sshd22:28:552
536009996144,12cyclictest541911-21munin-run21:05:002
536009996142,15cyclictest538803-21munin-run20:05:002
536009996139,17cyclictest238-21systemd-journal00:30:002
53599899614,14cyclictest538530-21munin-plugin-st20:00:000
53599899613,18cyclictest540096-21munin-plugin-st20:30:000
535998996119,15cyclictest275-21dbus-daemon21:25:000
53599899611,25cyclictest0-21swapper/000:24:550
536009996044,13cyclictest544233-21sshd21:49:562
536009996044,13cyclictest544233-21sshd21:49:562
536009996043,14cyclictest550931-21sshd23:55:572
536009995946,10cyclictest536168-21sshd19:10:552
536009995945,10cyclictest548367-21sshd23:07:562
536009995945,10cyclictest547572-21sshd22:50:552
536009995945,10cyclictest544728-21sshd21:57:562
536009995945,10cyclictest544728-21sshd21:57:562
536009995944,11cyclictest544514-21/usr/sbin/munin21:55:012
536009995944,11cyclictest540315-21sshd20:30:522
536009995943,12cyclictest543687-21sshd21:35:562
536009995943,12cyclictest543687-21sshd21:35:562
536009995942,12cyclictest550464-21munin-run23:50:002
536009995940,15cyclictest364-21snmpd21:11:042
536009995940,15cyclictest364-21snmpd21:11:042
536009995929,25cyclictest547882-21tr23:00:002
53599899594,22cyclictest537011-21latency_hist19:30:010
53599899593,17cyclictest550729-21unin-run23:55:010
535998995928,27cyclictest19350irq/34-mmc119:17:000
53601499588,11cyclictest37-21ksoftirqd/322:50:023
536009995843,11cyclictest542978-21munin-run21:25:012
536009995842,13cyclictest547341-21sshd22:49:562
536009995837,16cyclictest537674-21latency_hist19:40:022
536002995849,6cyclictest536008-21latency_hist19:10:011
53599899584,14cyclictest545050-21latency_hist22:05:020
53599899583,17cyclictest309-21in:imuxsock19:30:050
53599899583,17cyclictest309-21in:imuxsock19:30:050
53599899582,16cyclictest546678-21latency_hist22:35:030
535998995816,9cyclictest0-21swapper/019:55:010
535998995814,7cyclictest309-21in:imuxsock22:30:010
536009995745,9cyclictest539827-21sshd20:24:552
536009995745,9cyclictest539827-21sshd20:24:552
536009995743,11cyclictest536440-21sshd19:18:552
536009995743,10cyclictest545534-21munin-run22:15:002
536009995742,12cyclictest546046-21sshd22:21:572
536009995742,11cyclictest546577-21munin-run22:35:012
536009995742,11cyclictest539054-21/usr/sbin/munin20:10:012
536009995742,11cyclictest539054-21/usr/sbin/munin20:10:012
536009995737,16cyclictest364-21snmpd00:32:202
536009995734,18cyclictest541096-21sshd20:45:562
53599899573,15cyclictest550470-21true23:50:010
535998995729,25cyclictest543466-21sh21:35:000
535998995716,10cyclictest12-21ksoftirqd/021:15:020
535998995716,10cyclictest12-21ksoftirqd/021:15:020
535998995713,6cyclictest0-21swapper/000:15:010
536009995644,9cyclictest548613-21sshd23:11:562
536009995643,9cyclictest537224-21sshd19:34:552
536009995643,9cyclictest537224-21sshd19:34:552
536009995643,9cyclictest536967-21sshd19:27:552
536009995643,10cyclictest548977-21cat23:20:032
536009995643,10cyclictest544084-21cat21:45:012
536009995643,10cyclictest543453-21sshd21:34:562
536009995643,10cyclictest364-21snmpd00:01:372
536009995641,10cyclictest550684-21sshd23:51:292
536009995640,13cyclictest549158-21sshd23:22:562
536009995638,12cyclictest541368-21cron20:55:012
53599899563,21cyclictest552594-21munin-plugin-st00:30:010
53599899563,12cyclictest547346-21modprobe22:50:000
535998995621,9cyclictest12-21ksoftirqd/000:10:000
53599899562,16cyclictest545713-21latency_hist22:15:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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