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2026-04-25 - 04:06
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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 rack3slot6.osadl.org (updated Sat Apr 25, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6139910279,11cyclictest14-21ksoftirqd/021:35:140
6139910174,14cyclictest14-21ksoftirqd/020:20:100
613999970,19cyclictest14-21ksoftirqd/023:10:120
613999665,17cyclictest14-21ksoftirqd/019:10:120
613999566,19cyclictest14-21ksoftirqd/021:20:120
613999464,16cyclictest14-21ksoftirqd/022:35:150
613999369,15cyclictest14-21ksoftirqd/019:25:120
613999362,18cyclictest0-21swapper/019:30:110
613999360,19cyclictest14-21ksoftirqd/022:00:240
613999165,17cyclictest14-21ksoftirqd/023:00:230
613999165,17cyclictest14-21ksoftirqd/023:00:230
613999157,19cyclictest14-21ksoftirqd/023:30:120
40229137,43sleep10-21swapper/119:09:301
613998860,18cyclictest14-21ksoftirqd/000:35:210
613998835,46cyclictest24271-21/usr/sbin/munin23:15:230
613998835,46cyclictest24271-21/usr/sbin/munin23:15:230
613998759,18cyclictest14-21ksoftirqd/019:20:140
613998756,19cyclictest14-21ksoftirqd/023:45:140
613998755,21cyclictest14-21ksoftirqd/020:45:140
613998659,18cyclictest14-21ksoftirqd/020:15:130
613998659,17cyclictest14-21ksoftirqd/021:55:120
613998656,18cyclictest14-21ksoftirqd/000:20:150
613998656,18cyclictest14-21ksoftirqd/000:20:150
613998655,20cyclictest14-21ksoftirqd/021:00:120
613998552,20cyclictest14-21ksoftirqd/019:35:110
613998532,47cyclictest14545-21ntp_states19:45:420
613998452,22cyclictest0-21swapper/022:45:140
613998452,21cyclictest14-21ksoftirqd/023:35:150
613998353,20cyclictest14-21ksoftirqd/020:35:130
613998152,19cyclictest14-21ksoftirqd/023:50:110
613998152,18cyclictest14-21ksoftirqd/020:25:160
613998114,59cyclictest0-21swapper/020:10:120
613998053,18cyclictest14-21ksoftirqd/021:40:230
613998048,18cyclictest14-21ksoftirqd/023:20:130
613998014,58cyclictest0-21swapper/021:05:110
129682800,5sleep126-21ksoftirqd/122:45:011
61399797,58cyclictest29540-21apt-get20:30:140
613997949,21cyclictest14-21ksoftirqd/021:30:150
61399774,68cyclictest183622sleep000:30:220
61399774,68cyclictest183622sleep000:30:220
619997514,19cyclictest251rcuc/100:15:001
613997512,56cyclictest0-21swapper/023:40:140
3266727519,47sleep00-21swapper/019:07:540
61399749,57cyclictest36-21kcompactd023:05:140
61399747,58cyclictest14754-21apt-get22:50:130
61399747,55cyclictest24102-21apt-get21:45:160
61399747,54cyclictest739-21apt-get22:10:130
61399747,53cyclictest19033-21apt-get20:00:130
613997411,51cyclictest0-21swapper/000:05:130
61399736,55cyclictest17268-21apt-get19:55:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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