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2026-05-04 - 03:32
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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 rackeslot5.osadl.org (updated Mon May 04, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1284399600,59cyclictest11872-21apt-get20:15:120
1285299435,13cyclictest0-21swapper/200:03:122
1285799320,31cyclictest31714-21cron19:50:013
1285799300,29cyclictest0-21swapper/322:55:013
12843993028,1cyclictest0-21swapper/022:45:010
12852992927,1cyclictest10036-21cron22:30:002
1285299290,28cyclictest0-21swapper/223:25:112
12848992928,0cyclictest29555-21apt-get23:10:121
12848992927,1cyclictest621-21dbus-daemon21:50:001
12848992926,2cyclictest635-21rs:main1
1284899290,28cyclictest0-21swapper/122:35:131
1284899290,28cyclictest0-21swapper/121:10:111
1284899290,28cyclictest0-21swapper/120:15:121
1284899290,1cyclictest29122-21munin-run19:45:011
1284399290,28cyclictest22567-21apt-get22:55:110
1284399290,28cyclictest0-21swapper/000:00:010
1284399290,1cyclictest0-21swapper/019:25:010
12857992828,0cyclictest0-21swapper/323:30:113
12857992828,0cyclictest0-21swapper/300:10:143
12852992826,1cyclictest8567-21munin-run23:35:012
12852992826,1cyclictest621-21dbus-daemon21:00:002
1285299280,0cyclictest0-21swapper/219:30:122
1284899280,28cyclictest0-21swapper/122:10:111
1284899280,0cyclictest27580-21apt-get00:15:121
1284899280,0cyclictest0-21swapper/119:30:121
12843992827,1cyclictest24717-21apt-get19:35:130
1284399280,0cyclictest0-21swapper/020:20:130
12857992727,0cyclictest0-21swapper/322:45:013
12857992727,0cyclictest0-21swapper/322:00:113
12857992727,0cyclictest0-21swapper/321:20:103
1285799270,0cyclictest18149-21apt-get23:55:123
12852992727,0cyclictest1807-21apt-get23:20:112
12852992727,0cyclictest0-21swapper/223:35:132
12852992727,0cyclictest0-21swapper/221:15:112
12852992727,0cyclictest0-21swapper/220:50:122
12852992727,0cyclictest0-21swapper/220:20:122
12848992727,0cyclictest20244-21apt-get22:50:121
12848992727,0cyclictest17080-21apt-get21:35:131
12848992726,1cyclictest0-21swapper/121:15:111
12848992726,0cyclictest0-21swapper/123:25:011
12843992727,0cyclictest0-21swapper/023:45:120
12843992727,0cyclictest0-21swapper/023:40:130
12843992727,0cyclictest0-21swapper/021:40:120
12843992727,0cyclictest0-21swapper/021:10:120
12843992726,1cyclictest8830-21apt-get23:35:140
1284399270,0cyclictest0-21swapper/019:50:120
12857992626,0cyclictest21743-21apt-get21:45:113
12857992626,0cyclictest0-21swapper/319:15:123
12852992626,0cyclictest13081-21apt-get19:10:112
12852992626,0cyclictest0-21swapper/223:15:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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