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2026-05-01 - 04:17
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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 100 highest latencies:
System rackeslot5.osadl.org (updated Fri May 01, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1681499300,29cyclictest26408-21cron00:10:012
1681499300,29cyclictest1703-21apache200:00:002
16807993028,1cyclictest13442-21cron22:30:000
16817992928,1cyclictest0-21swapper/319:30:123
1681499290,28cyclictest0-21swapper/219:25:132
16812992927,1cyclictest0-21swapper/123:25:001
1681299290,28cyclictest3892-21apt-get00:30:131
1681299290,28cyclictest0-21swapper/119:50:121
16807992927,1cyclictest18099-21sh22:40:010
16817992828,0cyclictest0-21swapper/322:40:023
16817992828,0cyclictest0-21swapper/320:20:123
1681799280,0cyclictest0-21swapper/321:40:113
1681799280,0cyclictest0-21swapper/319:10:133
16814992826,1cyclictest0-21swapper/223:00:002
1681499280,0cyclictest0-21swapper/221:35:112
16812992827,0cyclictest21036-21apt-get22:45:121
1681299280,28cyclictest0-21swapper/121:30:131
1681299280,27cyclictest0-21swapper/123:55:131
16807992828,0cyclictest0-21swapper/019:45:130
16807992827,1cyclictest0-21swapper/019:35:100
1680799280,0cyclictest0-21swapper/022:00:120
1680799280,0cyclictest0-21swapper/000:15:120
16817992727,0cyclictest20485-21apt-get21:35:113
16817992727,0cyclictest0-21swapper/323:15:133
16817992727,0cyclictest0-21swapper/319:45:113
1681799270,0cyclictest0-21swapper/322:10:113
16814992727,0cyclictest0-21swapper/223:25:122
16814992727,0cyclictest0-21swapper/222:05:112
16814992727,0cyclictest0-21swapper/200:10:092
16812992727,0cyclictest32198-21apt-get22:00:121
16812992727,0cyclictest0-21swapper/123:05:151
16812992727,0cyclictest0-21swapper/119:35:101
1681299270,0cyclictest0-21swapper/122:35:111
16807992727,0cyclictest0-21swapper/022:40:120
16807992727,0cyclictest0-21swapper/020:40:100
16807992727,0cyclictest0-21swapper/000:20:110
1680799270,27cyclictest0-21swapper/022:45:140
1680799270,0cyclictest0-21swapper/021:24:470
16817992626,0cyclictest21702-21apt-get19:20:113
16817992626,0cyclictest0-21swapper/300:10:093
16814992626,0cyclictest15800-21perf22:35:012
16812992626,0cyclictest0-21swapper/121:50:111
16812992626,0cyclictest0-21swapper/121:20:121
16812992626,0cyclictest0-21swapper/120:55:011
16807992626,0cyclictest12910-21apt-get20:10:120
16807992626,0cyclictest0-21swapper/021:45:110
16807992626,0cyclictest0-21swapper/020:55:110
16817992525,0cyclictest0-21swapper/320:25:103
16817992523,1cyclictest8509-21cron21:10:013
16817992523,1cyclictest307-21systemd-journal20:05:013
16817992523,1cyclictest307-21systemd-journal20:05:013
16814992525,0cyclictest31902-21apt-get20:50:122
16814992523,1cyclictest0-21swapper/200:35:012
16812992525,0cyclictest1805-21apt-get20:55:121
16812992525,0cyclictest0-21swapper/123:05:011
16812992525,0cyclictest0-21swapper/121:10:091
16812992525,0cyclictest0-21swapper/120:10:111
16812992525,0cyclictest0-21swapper/119:45:131
16812992524,1cyclictest4150-21apt-get21:00:121
16812992524,1cyclictest11940-21apt-get23:35:121
16807992525,0cyclictest0-21swapper/023:45:130
16807992525,0cyclictest0-21swapper/020:15:120
16817992424,0cyclictest0-21swapper/322:50:123
16817992424,0cyclictest0-21swapper/300:25:163
16814992424,0cyclictest0-21swapper/223:35:122
16814992424,0cyclictest0-21swapper/222:50:112
16814992424,0cyclictest0-21swapper/222:50:002
16814992424,0cyclictest0-21swapper/222:35:122
16814992424,0cyclictest0-21swapper/222:25:112
16814992424,0cyclictest0-21swapper/220:20:112
16814992422,1cyclictest3596-21cron00:30:012
16814992422,1cyclictest19083-21turbostat.cron19:15:002
16814992421,2cyclictest16324-21awk23:45:002
16812992424,0cyclictest0-21swapper/123:45:121
16812992424,0cyclictest0-21swapper/121:25:131
16812992422,1cyclictest1-21systemd23:15:011
16812992421,2cyclictest21977-21awk20:30:001
16807992424,0cyclictest5623-21apt-get19:55:130
16807992424,0cyclictest28080-21apt-get23:00:130
16807992424,0cyclictest13737-21apt-get22:30:130
16807992424,0cyclictest0-21swapper/022:15:110
16807992424,0cyclictest0-21swapper/021:00:120
16807992424,0cyclictest0-21swapper/019:40:130
16817992323,0cyclictest2102-21apt-get22:05:103
16817992323,0cyclictest0-21swapper/320:50:123
16814992323,0cyclictest18938-21apt-get23:50:132
16814992323,0cyclictest0-21swapper/222:20:122
16814992323,0cyclictest0-21swapper/200:25:022
16812992323,0cyclictest0-21swapper/119:55:131
16812992321,1cyclictest6490-21munin-run22:15:011
16807992323,0cyclictest0-21swapper/021:30:120
1681499229,0cyclictest0-21swapper/221:13:422
16814992222,0cyclictest0-21swapper/223:30:132
16814992222,0cyclictest0-21swapper/222:04:592
16814992222,0cyclictest0-21swapper/221:05:122
16812992222,0cyclictest25414-21perf22:55:011
16812992221,1cyclictest31663-21apt-get00:20:111
16807992222,0cyclictest3300-21apt-get19:50:120
16807992222,0cyclictest0-21swapper/023:55:130
16807992222,0cyclictest0-21swapper/000:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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