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2025-10-15 - 22:30
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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 20 highest latencies:
System rack4slot3.osadl.org (updated Wed Oct 15, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104189915014,92cyclictest203902sleep007:43:020
104189913314,109cyclictest11405-21mailstats08:53:580
104189913214,80cyclictest4396-21munin-node10:13:020
104189912914,106cyclictest3533-21runrttasks10:38:100
104189912814,104cyclictest29258-21switchtime09:48:360
104189912614,103cyclictest27697-21sort09:43:410
104189912614,102cyclictest3533-21runrttasks12:14:240
104189912614,102cyclictest15110-21chrt09:06:010
104189912515,100cyclictest1505-21sendmail_mailqu08:23:330
104189912514,74cyclictest26087-21sendmail_mailst11:18:350
104189912415,100cyclictest30221-21sh09:53:050
104189912414,100cyclictest15784-21munin-node10:48:050
104189912315,99cyclictest3270-21ntpd10:03:260
104189912315,98cyclictest17550-21munin-node07:33:260
104189912315,97cyclictest32148-21munin-node08:18:230
104189912220,92cyclictest8099-21ntpq10:23:330
104189912218,94cyclictest3217-21snmpd09:13:000
104189912214,98cyclictest13933-21munin-node10:42:530
104189912213,72cyclictest3533-21runrttasks07:55:050
104189912118,93cyclictest3217-21snmpd08:17:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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