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2026-03-29 - 08:18
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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 20 highest latencies:
System rack3slot6.osadl.org (updated Sun Mar 29, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3063429729,24sleep10-21swapper/119:07:321
3045429221,26sleep00-21swapper/019:05:360
31049998160,14cyclictest26-21ksoftirqd/120:30:121
31042997944,22cyclictest25537-21/usr/sbin/munin21:55:350
31042997747,17cyclictest31036-21cyclictest22:42:100
31042997643,15cyclictest14-21ksoftirqd/023:45:170
31042997543,18cyclictest14-21ksoftirqd/019:15:180
31049997254,11cyclictest26-21ksoftirqd/121:40:121
69232710,5sleep06926-21cut21:00:280
31042997131,26cyclictest14-21ksoftirqd/021:10:200
31042997015,42cyclictest6035-21munin-run19:30:010
31042996937,26cyclictest14-21ksoftirqd/021:45:210
31042996836,26cyclictest14-21ksoftirqd/023:05:300
31042996826,18cyclictest14-21ksoftirqd/000:10:000
31042996643,16cyclictest14-21ksoftirqd/021:30:120
31042996635,24cyclictest14-21ksoftirqd/000:30:200
31042996624,16cyclictest14-21ksoftirqd/023:25:000
31049996539,9cyclictest31036-21cyclictest00:27:571
31042996526,16cyclictest14-21ksoftirqd/022:40:010
31042996526,15cyclictest14-21ksoftirqd/023:35:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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