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2025-08-21 - 22:15
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack7slot8.osadl.org (updated Thu Aug 21, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29363210340,12sleep029357-21aten_r7power_cu19:05:150
305129916659,90cyclictest127242chrt20:05:440
30512991599,111cyclictest32199-21apt-get21:22:140
30512991597,117cyclictest1356-21snmpd23:41:280
305129915934,106cyclictest10250irq/56-4a10000021:32:200
305129915933,108cyclictest10250irq/56-4a10000021:07:060
305129915927,113cyclictest937-21latency_hist23:35:020
30512991589,92cyclictest22104-21irqstats22:50:280
30512991588,129cyclictest1356-21snmpd00:22:050
305129915828,110cyclictest1424-21nginx00:38:540
30512991579,109cyclictest13931-21ntp_states20:10:430
30512991568,104cyclictest1356-21snmpd22:47:100
30512991556,133cyclictest29962-21diskstats21:15:280
30512991556,127cyclictest19271-21sshd20:31:500
30512991549,102cyclictest10269-21ntp_states19:56:210
30512991548,124cyclictest800-21avahi-daemon23:36:030
30512991548,109cyclictest4378-21ntp_states21:40:420
30512991547,91cyclictest10603-21ntp_states22:05:430
30512991547,127cyclictest1356-21snmpd22:16:320
305129915428,112cyclictest1356-21snmpd23:06:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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