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2026-09-14 - 18:13
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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 10 highest latencies:
System rack1slot2.osadl.org (updated Mon Sep 14, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1885324839,0sleep10-21swapper/107:29:531
1892024738,0sleep20-21swapper/207:30:392
1904723727,0sleep30-21swapper/307:32:123
1874122925,0sleep00-21swapper/007:28:320
191789983,0cyclictest3828-21awk10:12:590
191789983,0cyclictest3524-21snmpd08:07:580
191789983,0cyclictest25600-21awk12:38:010
191789983,0cyclictest1502-21sadc09:12:440
191789980,0cyclictest0-21swapper/008:53:090
191789973,0cyclictest3571-21lldpd08:51:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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