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2025-12-12 - 12:30

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 Fri Dec 12, 2025 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2041185999383,7cyclictest0-21swapper/023:25:010
2041185998076,2cyclictest0-21swapper/000:35:020
204118599731,69cyclictest0-21swapper/023:10:020
2041185996817,19cyclictest2044548-21date20:15:010
2041195996555,8cyclictest37-21ksoftirqd/323:00:023
2041192996524,7cyclictest2052959-21latency_hist22:55:012
204118599641,30cyclictest2042822-21latency_hist19:40:030
204118599641,30cyclictest2042822-21latency_hist19:40:020
2041192996217,15cyclictest235-21systemd-journal00:23:322
2041192996034,21cyclictest30-21ksoftirqd/220:25:032
204118599591,17cyclictest2053548-21cut23:05:030
204118599591,17cyclictest2053548-21cut23:05:020
2041192995826,7cyclictest30-21ksoftirqd/221:35:032
2041192995826,7cyclictest30-21ksoftirqd/221:35:032
2041192995824,10cyclictest30-21ksoftirqd/219:40:012
2041192995824,10cyclictest30-21ksoftirqd/219:40:002
204118599581,2cyclictest0-21swapper/021:00:010
204119099578,7cyclictest131rcu_preempt20:39:591
204118599572,18cyclictest2049020-21date21:40:020
204119299563,19cyclictest2041588-21kworker/u8:019:20:022
2041185995438,12cyclictest235-21systemd-journal21:30:010
2041185995416,9cyclictest12-21ksoftirqd/023:50:010
2041192995334,14cyclictest272-21dbus-daemon19:45:002
204119099538,6cyclictest131rcu_preempt00:00:001
2041190995336,13cyclictest1-21systemd23:10:001
204119599523,23cyclictest2050945-21kworker/u8:122:20:033
2041190995235,13cyclictest235-21systemd-journal20:03:431
2041190995229,11cyclictest2052028-21cron22:40:001
204119599512,5cyclictest131rcu_preempt00:35:013
204119599512,5cyclictest131rcu_preempt00:35:013
204118599513,7cyclictest2056244-21munin-run00:00:010
2041190995015,6cyclictest131rcu_preempt23:19:591
2041195994937,6cyclictest306-21in:imuxsock00:20:013
2041190994932,13cyclictest235-21systemd-journal23:32:431
2041185994933,11cyclictest272-21dbus-daemon19:45:000
204118599491,44cyclictest2043453-21munin-plugin-st19:55:000
204118599491,44cyclictest2043453-21munin-plugin-st19:55:000
204118599491,14cyclictest1-21systemd00:10:010
204118599491,14cyclictest1-21systemd00:10:000
2041195994831,12cyclictest1-21systemd23:35:013
2041195994826,16cyclictest2043180-21kworker/u8:320:00:003
2041195994824,19cyclictest272-21dbus-daemon23:55:013
2041192994830,14cyclictest30-21ksoftirqd/223:20:022
2041190994831,12cyclictest2047866-21cron21:20:001
2041185994832,12cyclictest1-21systemd22:40:000
204118599480,13cyclictest1-21systemd23:40:000
2041195994735,8cyclictest235-21systemd-journal19:40:013
2041195994735,8cyclictest235-21systemd-journal19:40:003
2041195994729,13cyclictest272-21dbus-daemon00:00:013
2041190994734,7cyclictest306-21in:imuxsock19:15:001
2041185994729,13cyclictest1-21systemd22:10:010
2041195994629,13cyclictest1-21systemd19:20:003
2041192994634,9cyclictest30-21ksoftirqd/200:40:002
2041192994633,9cyclictest306-21in:imuxsock19:45:022
204119299463,35cyclictest2053082-21kworker/u8:223:05:032
204119299461,41cyclictest30-21ksoftirqd/220:45:012
204119099461,11cyclictest2050222-21cron22:05:011
204119099461,11cyclictest2050222-21cron22:05:011
2041185994628,13cyclictest1-21systemd22:20:010
2041185994626,14cyclictest235-21systemd-journal20:30:010
204118599461,41cyclictest1-21systemd20:15:430
2041195994530,12cyclictest2054181-21tr23:20:003
2041192994531,11cyclictest235-21systemd-journal20:30:002
2041192994530,10cyclictest272-21dbus-daemon21:00:002
2041190994532,10cyclictest1-21systemd00:30:011
2041190994525,14cyclictest1-21systemd00:20:011
2041190994518,22cyclictest221rcuc/123:15:011
2041190994511,6cyclictest131rcu_preempt20:50:011
2041185994531,9cyclictest2051522-21munin-plugin-st22:30:000
2041185994530,10cyclictest306-21in:imuxsock00:35:010
2041185994530,10cyclictest306-21in:imuxsock00:35:010
2041185994526,14cyclictest2056502-21sshd00:03:440
2041185994524,14cyclictest272-21dbus-daemon19:15:020
2041185994523,17cyclictest1-21systemd22:15:000
204118599450,42cyclictest0-21swapper/000:25:010
2041192994428,11cyclictest235-21systemd-journal20:20:002
204119099448,6cyclictest131rcu_preempt19:55:011
204119099448,6cyclictest131rcu_preempt19:55:001
2041190994431,10cyclictest272-21dbus-daemon23:25:021
2041190994424,14cyclictest272-21dbus-daemon21:50:021
2041190994424,14cyclictest272-21dbus-daemon21:50:011
2041185994438,2cyclictest0-21swapper/022:30:030
2041195994326,13cyclictest1-21systemd21:55:013
2041192994330,9cyclictest2056224-21cron00:00:012
2041192994330,9cyclictest1-21systemd21:05:002
2041192994328,10cyclictest306-21in:imuxsock21:20:002
204119099433,7cyclictest131rcu_preempt22:59:591
2041190994327,12cyclictest2049956-21systemctl22:00:001
2041190994320,8cyclictest23-21ksoftirqd/123:44:451
2041190994318,19cyclictest2050999-21run-parts22:20:001
2041190994311,5cyclictest131rcu_preempt00:02:451
2041190994310,6cyclictest131rcu_preempt21:35:011
2041190994310,6cyclictest131rcu_preempt21:35:001
2041185994331,9cyclictest12-21ksoftirqd/019:30:000
2041185994329,11cyclictest12-21ksoftirqd/000:20:010
204118599432,14cyclictest2046421-21ls20:50:020
2041195994225,13cyclictest235-21systemd-journal22:05:023
2041195994225,13cyclictest235-21systemd-journal22:05:013
2041195994224,14cyclictest235-21systemd-journal21:05:013
2041195994224,13cyclictest1-21systemd19:35:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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