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2025-12-28 - 18:22
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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 rack5slot2.osadl.org (updated Sun Dec 28, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225162241226,11sleep10-21swapper/107:05:421
226202198181,12sleep30-21swapper/307:07:043
226022190173,12sleep00-21swapper/007:06:490
22686211386,22sleep20-21swapper/207:07:562
173982450,0sleep00-21swapper/009:05:150
321902110,0sleep232193-21cpuspeed11:45:112
21471290,0sleep20-21swapper/211:25:002
230549964,2cyclictest25604-21kworker/3:210:44:313
230549955,0cyclictest26447-21kworker/3:107:11:473
230549955,0cyclictest25604-21kworker/3:212:36:273
230549955,0cyclictest25604-21kworker/3:212:25:183
230549955,0cyclictest25604-21kworker/3:212:14:053
230549955,0cyclictest25604-21kworker/3:212:02:543
230549955,0cyclictest25604-21kworker/3:211:40:303
230549955,0cyclictest25604-21kworker/3:211:29:173
230549955,0cyclictest25604-21kworker/3:211:18:053
230549955,0cyclictest25604-21kworker/3:209:48:313
230549955,0cyclictest25604-21kworker/3:209:26:103
230549955,0cyclictest25604-21kworker/3:209:14:583
230549955,0cyclictest25604-21kworker/3:209:03:463
230549955,0cyclictest25604-21kworker/3:207:22:593
230549950,5cyclictest0-21swapper/311:45:173
230549950,4cyclictest22039-21diskstats10:20:153
230549950,4cyclictest16775-21apt-get09:05:023
230479953,1cyclictest16843-21dump-pmu-power12:20:002
230479950,5cyclictest25491-21irqstats12:35:182
230479950,5cyclictest0-21swapper/211:00:152
230479950,5cyclictest0-21swapper/210:22:342
230479950,4cyclictest4679-21apt-get11:55:012
230479950,4cyclictest21429-21apt-get11:25:022
230369950,5cyclictest0-21swapper/009:20:180
230369950,0cyclictest0-21swapper/011:20:130
230549944,0cyclictest25604-21kworker/3:210:55:433
230549944,0cyclictest25604-21kworker/3:209:59:443
230549944,0cyclictest25604-21kworker/3:208:07:453
230549944,0cyclictest25604-21kworker/3:207:45:223
230549944,0cyclictest0-21swapper/311:00:023
230549943,1cyclictest7362-21perl08:45:133
230549943,1cyclictest25109-21wc10:25:143
230549940,4cyclictest16110-21python12:15:213
230549940,4cyclictest0-21swapper/312:20:153
230549940,3cyclictest6029-21grep08:40:193
230549940,3cyclictest522-21ntp_states08:30:203
230549940,3cyclictest284032sleep310:31:293
230549940,3cyclictest2693-21sed07:30:173
230549940,3cyclictest24229-21sed08:15:013
230549940,3cyclictest11581-21grep08:55:003
230549940,3cyclictest0-21swapper/310:35:143
230549940,1cyclictest28989-21latency_hist08:25:003
230479944,0cyclictest0-21swapper/210:35:132
230479944,0cyclictest0-21swapper/208:30:042
230479944,0cyclictest0-21swapper/207:25:112
230479943,1cyclictest2946-21ntp_kernel_err09:40:182
230479940,4cyclictest27272-21df08:20:152
230479940,4cyclictest19558-21apt-get12:25:142
230479940,4cyclictest10284-21ntp_states07:45:172
230479940,4cyclictest0-21swapper/211:50:112
230479940,4cyclictest0-21swapper/211:42:532
230479940,4cyclictest0-21swapper/209:07:122
230479940,4cyclictest0-21swapper/208:35:362
230479940,1cyclictest8327-21cat09:50:202
230479940,1cyclictest26232-21munin-run10:30:012
230479940,0cyclictest0-21swapper/212:33:322
230409941,2cyclictest0-21swapper/110:55:121
230409941,2cyclictest0-21swapper/110:35:141
230409941,2cyclictest0-21swapper/110:05:121
230409941,2cyclictest0-21swapper/107:40:121
230409941,1cyclictest0-21swapper/110:20:121
230409941,1cyclictest0-21swapper/107:30:111
230369943,1cyclictest4177-21/usr/sbin/munin09:45:180
230369943,1cyclictest27633-21grep10:30:160
230369942,1cyclictest4134-21apt10:50:130
230369941,3cyclictest7543-21cat10:55:160
230369941,2cyclictest0-21swapper/008:05:120
230369940,4cyclictest517-21ntp_states08:30:200
230369940,4cyclictest28082-21ntp_states11:35:170
230369940,4cyclictest0-21swapper/009:10:120
230369940,4cyclictest0-21swapper/008:25:180
230369940,3cyclictest32346-21perl09:35:160
230369940,3cyclictest31022-21sensors_temp11:40:200
230369940,3cyclictest23940-21latency_hist10:25:010
230369940,3cyclictest21731-21/usr/sbin/munin09:15:200
230369940,3cyclictest17602-21df12:20:140
230369940,3cyclictest11680-21/usr/sbin/munin07:50:130
230369940,1cyclictest6649-21/usr/sbin/munin09:50:180
230369940,1cyclictest23981-21/usr/sbin/munin10:25:170
230369940,1cyclictest2241-21diskstats09:40:140
230369940,1cyclictest19554-21/usr/sbin/munin12:25:150
230369940,1cyclictest1728-21/usr/sbin/munin08:35:200
230369940,1cyclictest1577-21/usr/sbin/munin07:30:130
230369940,1cyclictest0-21swapper/007:45:130
230369940,0cyclictest7392-21perl08:45:130
230369940,0cyclictest5324-21ntp_states07:35:200
230369940,0cyclictest25612-21ntp_states11:30:170
230549932,1cyclictest774-21snmpd10:10:083
230549932,1cyclictest774-21snmpd07:25:053
230549932,1cyclictest15309-21grep07:55:173
230549931,2cyclictest25604-21kworker/3:208:55:013
230549931,1cyclictest774-21snmpd09:40:033
230549931,1cyclictest18770-21cron10:15:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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