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2025-08-21 - 21:29

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 Thu Aug 21, 2025 12:40:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2072456999085,2cyclictest0-21swapper/112:00:011
2072457996757,6cyclictest1276732-21cups-browsed09:38:222
2072456996750,12cyclictest2219358-40mandb12:00:221
2072455996346,13cyclictest2219358-40mandb12:00:530
2072457995645,6cyclictest421-21avahi-daemon09:48:232
2072455995645,6cyclictest2219407-21ssh11:59:540
2072455995443,8cyclictest2159387-21unixbench_singl10:28:330
2072457995245,3cyclictest2215694-21kworker/u8:9-rpciod12:01:022
2072455995244,5cyclictest2153607-21munin-run10:20:010
207245699504,38cyclictest2225594-21ssh12:08:151
2072457994940,5cyclictest2137865-21sh09:55:012
2072455994942,2cyclictest0-21swapper/011:20:020
2072457994840,5cyclictest2219465-21run-parts12:00:012
2072455994739,5cyclictest2201340-21systemd-run11:35:010
2072455994739,5cyclictest2201340-21systemd-run11:35:010
2072455994738,5cyclictest422-21dbus-daemon11:25:020
2072455994738,5cyclictest422-21dbus-daemon11:25:020
2072457994637,6cyclictest2147382-21true10:10:012
2072457994637,6cyclictest2147382-21true10:10:012
2072456994637,5cyclictest1-21systemd11:50:011
2072456994635,4cyclictest0-21swapper/109:48:231
2072455994638,5cyclictest1276732-21cups-browsed09:21:330
2072455994634,8cyclictest2156660-21sh10:25:010
2072455994537,5cyclictest2181894-21systemd-run11:05:010
2072455994536,6cyclictest2093464-21sh08:20:010
2072455994536,6cyclictest2093464-21sh08:20:010
2072456994435,6cyclictest2105427-21cut09:00:011
2072455994437,4cyclictest2128143-21munin-run09:40:010
2072455994434,6cyclictest2123226-21cpu09:33:120
2072457994331,8cyclictest1-21systemd09:30:012
207245699435,28cyclictest2240969-21ssh12:28:201
207245699433,34cyclictest2177581-21ssh10:58:311
207245699433,34cyclictest2177581-21ssh10:58:311
2072455994326,10cyclictest0-21swapper/011:13:270
2072457994229,10cyclictest2150018-21unixbench_singl10:13:332
2072456994234,5cyclictest2118847-21latency_hist09:25:021
2072455994233,6cyclictest2146751-21unixbench-2d10:08:360
2072455994233,6cyclictest2146751-21unixbench-2d10:08:360
2072457994132,6cyclictest956-21mta-sts-daemon10:03:082
2072457994131,5cyclictest1276732-21cups-browsed09:24:232
207245699414,30cyclictest1690079-21ntpd12:18:181
2072456994133,5cyclictest1276732-21cups-browsed10:40:021
2072455994134,4cyclictest2232819-21cpuspeed12:18:110
2072455994131,7cyclictest421-21avahi-daemon09:48:230
2072457994032,5cyclictest955-21mta-sts-daemon12:22:202
207245699402,26cyclictest2155567-21ssh10:23:221
2072455994030,6cyclictest1276732-21cups-browsed10:40:030
2072455994028,9cyclictest2109849-21sshd09:12:210
2072455994028,9cyclictest2109849-21sshd09:12:210
2072455994022,14cyclictest12450irq/32-eth010:43:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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