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2025-11-08 - 14:15

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 Sat Nov 08, 2025 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2026348998355,25cyclictest0-21swapper/000:35:010
2026358997214,51cyclictest2033588-21unin-run21:30:013
2026358996714,46cyclictest272-21dbus-daemon23:10:003
2026358996326,33cyclictest2037790-21cat22:50:023
2026358996315,44cyclictest2026718-21ls19:15:023
202635899631,17cyclictest235-21systemd-journal22:37:393
202635899631,17cyclictest235-21systemd-journal22:37:393
2026348996258,2cyclictest0-21swapper/000:15:010
2026353996126,31cyclictest235-21systemd-journal23:35:011
2026353996126,31cyclictest235-21systemd-journal23:35:011
202635899602,15cyclictest1-21systemd22:35:013
2026353996026,29cyclictest272-21dbus-daemon00:00:011
2026353996026,29cyclictest272-21dbus-daemon00:00:011
202635899591,16cyclictest2038260-21sshd22:59:253
2026353995926,27cyclictest2029141-21modprobe20:04:591
2026358995824,29cyclictest272-21dbus-daemon20:05:013
202635899581,16cyclictest2038569-21systemd-run23:05:013
202635899581,15cyclictest2037969-21dpkg22:50:323
202635399588,45cyclictest1-21systemd21:10:011
202635399582,18cyclictest2027003-21cat19:20:021
202635899572,7cyclictest2032547-21munin-run21:10:013
2026358995723,30cyclictest2036787-21latency_hist22:30:023
2026358995715,36cyclictest2042455-21sendmail00:20:003
202635399572,21cyclictest2042991-21true00:30:001
2026353995716,36cyclictest306-21in:imuxsock19:40:011
202635899562,9cyclictest2035022-21latency_hist21:55:023
202635899562,16cyclictest2027331-21/usr/sbin/munin19:30:023
202635899562,16cyclictest2027331-21/usr/sbin/munin19:30:023
202635899562,14cyclictest2041404-21munin-plugin-st23:59:593
202635899562,14cyclictest2041404-21munin-plugin-st00:00:003
202635899562,14cyclictest2033339-21munin-run21:25:003
202635899561,15cyclictest2041999-21cat00:10:023
202635899561,15cyclictest2041999-21cat00:10:013
2026358995611,40cyclictest272-21dbus-daemon19:55:003
202635399562,49cyclictest2033168-21latency_hist21:20:021
2026353995622,29cyclictest2037475-21/usr/sbin/munin22:45:001
202635399561,14cyclictest2031257-21wc20:45:021
202635899559,39cyclictest0-21swapper/300:25:013
202635899553,48cyclictest2027581-21latency_hist19:34:593
202635899553,45cyclictest2041142-21modprobe23:55:003
2026358995528,22cyclictest2034128-21latency_hist21:40:023
202635899552,47cyclictest308-21rs:main3
2026358995514,35cyclictest272-21dbus-daemon23:20:013
2026358995514,35cyclictest272-21dbus-daemon23:20:003
202635899551,15cyclictest2030768-21sort20:35:013
2026353995538,12cyclictest1-21systemd23:00:011
202635399552,11cyclictest235-21systemd-journal23:45:011
202635399552,11cyclictest235-21systemd-journal23:45:001
202635399551,10cyclictest2033581-21true21:30:011
2026348995536,14cyclictest2028860-21cron20:00:010
202635899542,12cyclictest2035746-21latency_hist22:10:023
202635399543,13cyclictest2027139-21latency_hist19:25:011
2026353995431,19cyclictest2037982-21apt-config22:50:321
202635399542,47cyclictest2032001-21modprobe21:00:001
202635399542,45cyclictest2042453-21munin-plugin-st00:20:001
202635399542,14cyclictest2036688-21munin-plugin-st22:30:001
202635399541,6cyclictest2028862-21cron20:00:011
2026353995414,36cyclictest2029759-21latency_hist20:15:021
2026353995414,36cyclictest2029759-21latency_hist20:15:011
2026348995429,16cyclictest0-21swapper/021:30:270
2026358995325,25cyclictest2040112-21systemd-run23:35:013
2026358995325,25cyclictest2040112-21systemd-run23:35:013
202635899532,14cyclictest2042319-21date00:15:023
202635899532,14cyclictest2030200-21munin-run20:25:013
202635899531,8cyclictest2029630-21sshd20:12:043
202635899531,8cyclictest2029630-21sshd20:12:043
202635899531,19cyclictest2030970-21readlink20:39:593
202635899531,14cyclictest2041696-21munin-run00:05:013
202635899531,12cyclictest2043540-21grep00:40:023
202635899531,12cyclictest2040357-21modprobe23:39:593
202635899531,11cyclictest2028882-21/usr/sbin/munin20:00:013
202635399535,43cyclictest2042187-21munin-plugin-st00:15:001
202635399531,17cyclictest2034089-21munin-run21:40:011
2026348995336,13cyclictest1-21systemd19:15:000
2026348995314,34cyclictest2040298-21latency_hist23:35:030
2026348995314,34cyclictest2040298-21latency_hist23:35:030
202635899523,43cyclictest2035125-21cut22:00:013
202635899522,45cyclictest2029962-21munin-run20:20:013
202635899522,43cyclictest2032773-21cron21:15:013
202635899522,43cyclictest2032773-21cron21:15:003
202635899522,16cyclictest2034343-21sshd21:44:263
202635899521,45cyclictest2033848-21cat21:35:013
202635899521,10cyclictest2033252-21latency_hist21:20:023
2026355995233,14cyclictest235-21systemd-journal20:54:262
202635399527,40cyclictest2030553-21latency_hist20:30:021
202635399527,40cyclictest2030553-21latency_hist20:30:021
202635399524,41cyclictest0-21swapper/119:35:021
202635399523,42cyclictest2039854-21modprobe23:30:001
202635399522,45cyclictest2026431-21latency_hist19:10:011
202635399522,10cyclictest2040321-21modprobe23:35:031
2026353995219,27cyclictest2030049-21wc20:20:021
202635399521,4cyclictest363-21snmpd21:41:271
202635399521,15cyclictest2034610-21sh21:50:001
202635899511,9cyclictest2043045-21latency_hist00:30:013
202635899511,4cyclictest0-21swapper/320:57:153
202635899511,44cyclictest2039856-21munin-plugin-st23:30:003
202635899511,12cyclictest2031247-21systemd-run20:45:013
202635399515,41cyclictest0-21swapper/122:50:011
202635399515,39cyclictest0-21swapper/100:35:001
202635399513,8cyclictest2028361-21cron19:49:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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