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2026-04-26 - 19:29
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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 Sun Apr 26, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1568129916,39sleep00-21swapper/007:06:460
1594929723,19sleep10-21swapper/107:09:091
16165998260,10cyclictest14-21ksoftirqd/010:45:130
145432800,7chrt0-21swapper/010:05:270
16165997953,14cyclictest0-21swapper/012:00:130
16165997813,18cyclictest0-21swapper/012:05:130
227722760,6sleep00-21swapper/007:25:330
227722760,6sleep00-21swapper/007:25:330
16165997650,13cyclictest14-21ksoftirqd/009:45:150
16165997552,11cyclictest14-21ksoftirqd/007:50:130
16165997545,16cyclictest14-21ksoftirqd/008:15:130
16165997449,14cyclictest14-21ksoftirqd/009:25:120
16165997414,19cyclictest0-21swapper/010:20:100
16165997345,15cyclictest14-21ksoftirqd/011:20:130
16165997315,51cyclictest0-21swapper/012:30:120
1616599718,18cyclictest2383-21apt-get12:35:130
16165997140,20cyclictest14-21ksoftirqd/011:40:230
16165997134,21cyclictest0-21swapper/009:10:140
16165997043,17cyclictest14-21ksoftirqd/011:55:150
16165996939,18cyclictest14-21ksoftirqd/010:30:140
49692680,5sleep14968-21cpuspeed_turbos11:10:181
16165996814,16cyclictest0-21swapper/009:35:120
1617099673,54cyclictest26-21ksoftirqd/108:45:131
16170996734,11cyclictest26-21ksoftirqd/109:40:011
1617099672,51cyclictest25931-31find07:35:321
16165996738,17cyclictest0-21swapper/009:50:250
16165996737,19cyclictest14-21ksoftirqd/009:30:130
16165996737,17cyclictest0-21swapper/010:25:130
16165996733,22cyclictest14-21ksoftirqd/008:50:150
16165996639,17cyclictest14-21ksoftirqd/008:20:150
16165996636,17cyclictest0-21swapper/011:05:250
16165996635,26cyclictest3798-21telnet08:05:180
1617099655,13cyclictest14234-21apt-get08:35:141
16165996545,12cyclictest27274-21sendmail-msp07:40:000
16165996538,17cyclictest14-21ksoftirqd/009:20:160
16165996537,16cyclictest0-21swapper/008:30:150
16165996537,16cyclictest0-21swapper/007:30:130
16165996535,20cyclictest0-21swapper/009:00:110
16165996534,19cyclictest14-21ksoftirqd/007:45:140
16165996437,19cyclictest524-21lldpd09:40:160
16165996436,16cyclictest0-21swapper/012:20:140
16165996433,18cyclictest0-21swapper/011:10:130
16165996433,18cyclictest0-21swapper/007:55:140
16165996414,42cyclictest0-21swapper/008:10:120
16170996333,12cyclictest26-21ksoftirqd/107:25:001
1617099632,20cyclictest1-21systemd09:00:001
1617099632,20cyclictest1-21systemd09:00:001
16165996334,17cyclictest0-21swapper/008:25:150
16165996237,13cyclictest0-21swapper/007:20:120
16165996235,21cyclictest14-21ksoftirqd/007:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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