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2025-11-03 - 05:21
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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
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Mon Nov 03, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
133540921730,2sleep30-21swapper/319:16:003
176310321110,2sleep0241rcuc/023:55:580
153607421050,2sleep30-21swapper/321:46:003
16490312800,0sleep11649035-21sed22:50:581
15820742750,1sleep01582080-21ssh22:11:010
18296392360,2sleep30-21swapper/300:31:123
1323513992724,2cyclictest1770291-40install00:00:001
1323512992419,4cyclictest0-21swapper/000:30:010
835298230,2rtkit-daemon8351-21rtkit-daemon21:48:450
132351399231,2cyclictest1787934-21awk00:10:001
132351399230,22cyclictest1715194-21unixbench_multi23:26:081
1323514992219,1cyclictest0-21swapper/223:45:012
302487291210,2phc2sys0-21swapper/300:37:513
1323513992118,2cyclictest1603328-21dump-pmu-power22:25:011
1323512992112,8cyclictest0-21swapper/022:25:550
835298200,3rtkit-daemon1323510-21cyclictest22:38:171
16643742200,1sleep00-21swapper/022:59:270
1323514992018,1cyclictest0-21swapper/222:55:022
1323513992017,2cyclictest0-21swapper/119:26:051
1323513992015,3cyclictest1774064-21kthreadcore00:01:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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