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2025-11-30 - 12:28
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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 Sun Nov 30, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253852327295,20sleep20-21swapper/219:09:382
252212277244,22sleep10-21swapper/119:07:321
254152260225,22sleep00-21swapper/019:10:000
251672258224,22sleep30-21swapper/319:07:063
156232930,0sleep10-21swapper/122:45:151
146912640,0sleep30-21swapper/321:55:373
61592620,0sleep16156-21apt-get21:50:131
98962610,0sleep00-21swapper/021:52:290
324502610,0sleep20-21swapper/200:06:332
259802600,0sleep10-21swapper/122:28:541
216842600,0sleep30-21swapper/321:37:053
240362570,0sleep30-21swapper/323:14:403
162812570,1sleep20-21swapper/221:33:242
149472230,0sleep10-21swapper/123:54:541
131822140,0sleep10-21swapper/123:30:041
326682130,0sleep30-21swapper/300:06:463
275342130,0sleep30-21swapper/322:30:123
8012110,4sleep228-21ksoftirqd/220:35:152
11452110,0sleep00-21swapper/023:20:340
255239994,3cyclictest19982-21systemd-journal19:25:012
255239994,3cyclictest19982-21systemd-journal00:04:152
255149994,3cyclictest19982-21systemd-journal20:01:020
11510290,0sleep00-21swapper/023:51:410
8509280,0sleep30-21swapper/321:51:043
255279985,2cyclictest34-21ksoftirqd/321:30:113
255279983,3cyclictest19982-21systemd-journal22:04:323
255279983,3cyclictest19982-21systemd-journal21:46:363
255279983,3cyclictest19982-21systemd-journal21:21:573
255279983,3cyclictest19982-21systemd-journal20:07:423
255279983,3cyclictest19982-21systemd-journal19:45:293
255239984,3cyclictest19982-21systemd-journal22:39:352
255239983,3cyclictest502-21systemd-logind00:33:272
255239983,3cyclictest502-21systemd-logind00:33:272
255239982,3cyclictest6874-21ls20:50:012
255189983,3cyclictest19982-21systemd-journal21:58:081
255189983,3cyclictest19982-21systemd-journal20:39:491
255189983,3cyclictest19982-21systemd-journal19:52:231
255189982,3cyclictest9950-21munin-run19:45:001
255149984,3cyclictest508-21dbus-daemon21:35:180
255149984,3cyclictest508-21dbus-daemon21:13:120
255149984,3cyclictest19982-21systemd-journal23:19:320
31510270,0sleep30-21swapper/322:55:233
26449270,0sleep20-21swapper/222:52:212
255279974,2cyclictest6195-21timerandwakeup20:45:223
255279974,2cyclictest28039-21cron00:30:003
255279974,2cyclictest11736-21in:imuxsock22:19:323
255279974,2cyclictest11736-21in:imuxsock21:05:163
255279973,3cyclictest508-21dbus-daemon23:30:003
255279973,3cyclictest30654-21snmpd23:48:263
255279973,3cyclictest0-21swapper/322:45:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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