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2026-01-05 - 03:51

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 Mon Jan 05, 2026 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2893898997524,46cyclictest1-21systemd20:15:022
2893898996920,15cyclictest238-21systemd-journal22:20:002
2893900996811,11cyclictest37-21ksoftirqd/322:10:013
2893890996861,3cyclictest0-21swapper/019:25:010
2893900996718,11cyclictest37-21ksoftirqd/323:20:023
2893900996712,13cyclictest2899299-21latency_hist20:55:023
289389899652,16cyclictest2900649-21unin-run21:20:022
289389899652,16cyclictest2900649-21unin-run21:20:012
289389899635,33cyclictest291rcuc/221:00:022
2893898996324,36cyclictest30-21ksoftirqd/200:20:022
2893898996222,12cyclictest30-21ksoftirqd/223:44:392
2893900996110,12cyclictest2907855-21latency_hist23:40:013
2893898996114,9cyclictest2899070-21latency_hist20:50:022
2893900996013,10cyclictest37-21ksoftirqd/320:05:023
2893900996010,9cyclictest37-21ksoftirqd/321:35:003
289389899604,16cyclictest2897083-21wc20:10:022
289389899603,18cyclictest238-21systemd-journal19:15:002
289389899592,16cyclictest2894336-21modprobe19:19:592
2893898995921,4cyclictest2898983-21latency_hist20:45:022
2893898995818,7cyclictest2897502-21cut20:19:592
289390099576,30cyclictest2910426-21kworker/u8:300:35:023
2893900995710,16cyclictest2909922-21cron00:20:003
289389899572,17cyclictest2907618-21unin-run23:35:012
2893900995533,16cyclictest275-21dbus-daemon19:40:003
2893900995511,9cyclictest37-21ksoftirqd/323:45:003
289389899553,14cyclictest2906050-21modprobe23:05:012
289389899553,14cyclictest2906050-21modprobe23:05:002
2893898995515,5cyclictest2904833-21latency_hist22:40:022
2893898995513,5cyclictest0-21swapper/222:45:012
2893890995532,19cyclictest16950irq/224-800000022:39:590
2893898995420,12cyclictest275-21dbus-daemon19:35:022
2893898995420,12cyclictest275-21dbus-daemon19:35:012
2893898995413,8cyclictest2911190-21cat00:40:022
2893900995311,9cyclictest37-21ksoftirqd/319:45:023
2893898995335,12cyclictest1-21systemd21:40:012
289389899532,16cyclictest238-21systemd-journal00:05:012
2893898995320,14cyclictest30-21ksoftirqd/220:54:592
289389899531,17cyclictest2908905-21munin-run00:00:002
2893890995331,17cyclictest2897494-21sh20:20:000
2893900995235,14cyclictest238-21systemd-journal20:15:033
2893900995211,8cyclictest37-21ksoftirqd/320:15:013
2893898995217,4cyclictest2903037-21latency_hist22:05:012
2893898995134,12cyclictest275-21dbus-daemon20:40:002
2893898995116,11cyclictest2902658-21cron22:00:002
2893894995134,12cyclictest1-21systemd23:55:011
2893894995131,15cyclictest275-21dbus-daemon23:30:011
289389099518,26cyclictest151rcuc/000:20:020
2893890995136,11cyclictest238-21systemd-journal00:35:010
2893890995133,13cyclictest275-21dbus-daemon20:55:010
2893890995122,17cyclictest151rcuc/021:45:020
289389899502,16cyclictest2900334-21cron21:15:002
2893898995015,6cyclictest2902268-21cat21:50:022
2893894995029,17cyclictest1-21systemd22:40:011
2893890995033,12cyclictest238-21systemd-journal00:10:000
2893890995028,16cyclictest0-21swapper/000:00:010
289390099495,11cyclictest2901134-21latency_hist21:30:023
2893900994936,7cyclictest2908384-21munin-plugin-st23:50:003
2893900994911,8cyclictest0-21swapper/300:25:013
289389899497,10cyclictest311-21rs:main2
289389899494,13cyclictest2907843-21modprobe23:40:012
2893890994936,10cyclictest12-21ksoftirqd/020:40:000
2893890994918,28cyclictest12-21ksoftirqd/023:35:230
2893900994829,13cyclictest275-21dbus-daemon22:45:013
2893898994838,7cyclictest30-21ksoftirqd/220:30:022
2893898994838,7cyclictest30-21ksoftirqd/220:30:022
289389899481,18cyclictest2906582-21wc23:15:012
289389099484,7cyclictest2903726-21sendmail22:20:000
2893890994832,11cyclictest1-21systemd19:45:020
2893890994830,13cyclictest238-21systemd-journal19:15:000
289390099471,16cyclictest0-21swapper/323:15:013
2893898994734,10cyclictest238-21systemd-journal21:00:032
2893898994734,10cyclictest238-21systemd-journal21:00:022
2893898994716,7cyclictest30-21ksoftirqd/219:10:022
2893898994715,8cyclictest30-21ksoftirqd/220:25:012
2893898994713,10cyclictest30-21ksoftirqd/221:44:592
2893894994735,8cyclictest238-21systemd-journal21:09:591
289389099473,9cyclictest2896479-21sendmail-msp19:59:590
2893890994736,7cyclictest19350irq/34-mmc123:10:000
289390099465,11cyclictest37-21ksoftirqd/319:25:003
2893898994635,6cyclictest309-21in:imuxsock21:25:002
2893898994628,14cyclictest1-21systemd19:30:002
2893898994619,7cyclictest30-21ksoftirqd/200:25:012
2893894994629,13cyclictest238-21systemd-journal23:49:591
289389099465,37cyclictest2906824-21sh23:20:010
2893890994634,8cyclictest12-21ksoftirqd/021:20:020
2893890994634,8cyclictest12-21ksoftirqd/021:20:010
2893900994533,7cyclictest2899543-21cron21:00:003
2893900994527,14cyclictest2905506-21sshd22:53:413
2893894994532,7cyclictest2898018-21munin-plugin-st20:30:011
2893894994532,7cyclictest2898018-21munin-plugin-st20:30:001
2893890994528,12cyclictest238-21systemd-journal21:45:020
2893890994527,15cyclictest2902417-21latency_hist21:55:010
2893890994527,15cyclictest2902417-21latency_hist21:55:010
2893890994526,13cyclictest238-21systemd-journal22:05:010
2893890994521,19cyclictest1-21systemd22:10:010
2893900994424,15cyclictest2894305-21cron19:17:013
2893898994433,8cyclictest2905498-21sshd22:52:242
2893898994431,9cyclictest2895673-21sshd19:41:592
2893898994420,4cyclictest2901388-21latency_hist21:35:022
2893894994430,8cyclictest275-21dbus-daemon21:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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