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2025-11-30 - 06:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack2slot7s.osadl.org (updated Sun Nov 30, 2025 00:39:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1622605995438,13cyclictest1690890-21ssh21:55:010
162260599516,22cyclictest1794072-21ssh00:19:190
1622605995037,10cyclictest1669099-21sshd21:24:250
1622606994938,7cyclictest421-21avahi-daemon21:54:101
1622605994820,5cyclictest0-21swapper/019:20:000
1622607994739,5cyclictest1666229-21ssh21:20:012
1622606994738,6cyclictest1-21systemd00:35:011
162260599472,23cyclictest1764960-21ssh23:39:180
162260799463,33cyclictest1693483-21ssh21:59:172
1622607994532,10cyclictest1676837-21cron21:35:012
162260599452,33cyclictest1707607-21ssh22:19:200
1622605994518,18cyclictest12450irq/32-eth022:44:170
1622607994436,5cyclictest1658594-21systemd-run21:10:022
1622605994437,4cyclictest1747701-21ssh23:15:000
1622605994437,4cyclictest1747701-21ssh23:15:000
1622605994437,4cyclictest1680363-21basename21:40:010
1622607994334,6cyclictest1711343-21sh22:24:272
1622606994335,5cyclictest422-21dbus-daemon19:15:011
1622606994334,6cyclictest1794912-21idleruntime-cro00:20:011
1622606994330,10cyclictest1714949-21switchtime22:29:271
1622607994234,5cyclictest1679050-21fschecks_count21:39:102
162260799421,30cyclictest1718254-21ssh22:34:202
1622606994233,5cyclictest1694346-21cron22:00:011
1622606994232,7cyclictest1631578-21/usr/sbin/munin19:40:021
1622606994131,7cyclictest421-21avahi-daemon22:32:121
1622605994134,4cyclictest1773024-21kthreadd23:50:010
1622605994134,4cyclictest1673372-21systemd-run21:30:010
1622605994133,5cyclictest1798179-21sed00:24:360
162260799408,20cyclictest437-21mta-sts-daemon23:34:172
1622607994032,5cyclictest1776668-21cron23:55:012
1622607994030,6cyclictest1797247-21sh00:24:172
1622607994030,6cyclictest1-21systemd19:20:002
1622607994027,9cyclictest1696385-21aten_r2power_fr22:04:092
1622607994026,11cyclictest1783767-21timerandwakeup00:04:342
1622606994033,3cyclictest0-21swapper/122:40:011
1622605994034,4cyclictest1755008-21munin-run23:25:010
1622607993931,5cyclictest1744127-21latency_hist23:10:012
1622607993926,9cyclictest1793577-21sh00:19:102
1622607993925,11cyclictest1771868-21kernelversion23:49:132
162260699393,31cyclictest1700532-21ssh22:09:201
1622606993932,4cyclictest1762248-21rm23:35:011
162260699392,27cyclictest1772125-21ssh23:49:181
1622605993927,8cyclictest421-21avahi-daemon21:44:040
1622605993927,8cyclictest151ktimers/020:14:170
1622605993925,10cyclictest0-21swapper/022:59:310
1622607993830,5cyclictest1643579-21munin-plugin-st20:20:012
1622606993831,4cyclictest1622604-21cyclictest00:24:231
1622606993831,3cyclictest0-21swapper/121:20:011
1622606993830,5cyclictest1658579-21diskmemload00:00:021
1622606993829,6cyclictest1751350-21cron23:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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