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2025-06-17 - 02:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackaslot8.osadl.org (updated Mon Jun 16, 2025 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110042293262,20sleep10-21swapper/107:06:321
93052292229,20sleep00-21swapper/007:05:070
109562268208,19sleep30-21swapper/307:05:543
112592257221,23sleep20-21swapper/207:09:502
127542620,0sleep30-21swapper/310:15:033
182312550,0sleep10-21swapper/109:51:221
171532210,0sleep30-21swapper/307:20:163
275492140,0sleep00-21swapper/011:25:190
231492140,0sleep20-21swapper/209:55:242
231492140,0sleep20-21swapper/209:55:242
272752120,0sleep00-21swapper/011:50:180
1138199108,1cyclictest22-21ksoftirqd/108:20:011
1137799107,2cyclictest11736-21in:imuxsock10:05:000
3630290,0sleep30-21swapper/311:32:233
113889994,3cyclictest19982-21systemd-journal11:56:363
113889994,3cyclictest19982-21systemd-journal11:56:363
113889994,3cyclictest19982-21systemd-journal11:50:463
113889994,3cyclictest19982-21systemd-journal07:16:153
113859994,3cyclictest19982-21systemd-journal08:19:392
113819995,3cyclictest30654-21snmpd10:52:041
31310280,0sleep20-21swapper/210:58:542
19029280,0sleep10-21swapper/111:18:201
113889984,3cyclictest19982-21systemd-journal09:28:043
113889984,2cyclictest19982-21systemd-journal08:30:473
113889983,3cyclictest19982-21systemd-journal10:05:553
113859987,1cyclictest28-21ksoftirqd/207:15:012
113859984,3cyclictest19982-21systemd-journal09:05:002
113859982,3cyclictest18663-21munin-plugin-st07:25:012
113859981,4cyclictest26737-21basename11:50:012
113819985,2cyclictest508-21dbus-daemon09:45:011
113819983,3cyclictest19982-21systemd-journal10:49:011
113819983,3cyclictest19982-21systemd-journal08:20:411
113779986,2cyclictest12-21ksoftirqd/009:45:010
113779986,1cyclictest0-21swapper/009:00:000
113779984,3cyclictest502-21systemd-logind11:40:450
113779983,3cyclictest19982-21systemd-journal08:10:450
113779983,3cyclictest19982-21systemd-journal08:00:360
113779983,3cyclictest19982-21systemd-journal08:00:360
113779983,3cyclictest19982-21systemd-journal07:35:260
6956270,0sleep00-21swapper/010:10:150
113889974,2cyclictest508-21dbus-daemon09:05:003
113889974,2cyclictest34-21ksoftirqd/310:20:393
113889974,2cyclictest30330-21systemctl12:35:213
113889974,2cyclictest19982-21systemd-journal09:10:573
113889974,2cyclictest19842-21sshd07:25:173
113889973,3cyclictest508-21dbus-daemon08:06:183
113889973,3cyclictest30654-21snmpd09:46:173
113889973,3cyclictest0-21swapper/312:32:453
113889973,1cyclictest0-21swapper/312:18:253
113889972,3cyclictest19982-21systemd-journal11:44:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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