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2025-12-16 - 06:39
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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 Tue Dec 16, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21732234219,10sleep10-21swapper/119:09:161
21802186167,14sleep30-21swapper/319:09:233
20022181164,12sleep00-21swapper/019:07:020
2009210992,12sleep20-21swapper/219:07:082
111032420,0sleep211105-21aten2_r5power_e20:30:112
24249980,7cyclictest0-21swapper/322:20:103
24119982,3cyclictest14181-21cron22:45:000
24249970,7cyclictest0-21swapper/319:35:103
24119971,5cyclictest0-21swapper/023:30:100
24119961,4cyclictest0-21swapper/021:15:030
24119960,5cyclictest0-21swapper/023:00:100
24249955,0cyclictest0-21swapper/319:30:193
24249950,0cyclictest0-21swapper/323:30:163
24209950,3cyclictest0-21swapper/222:00:122
24159952,2cyclictest0-21swapper/119:20:081
24159952,2cyclictest0-21swapper/119:10:111
24159951,2cyclictest0-21swapper/121:45:111
24119954,1cyclictest0-21swapper/023:54:580
24119952,3cyclictest23405-21python21:55:200
24119951,4cyclictest9043-21munin-run22:35:000
24119951,1cyclictest0-21swapper/022:10:120
24119950,5cyclictest0-21swapper/021:39:560
9255240,0sleep10-21swapper/121:30:121
24249944,0cyclictest0-21swapper/323:57:113
24249942,1cyclictest774-21snmpd23:26:443
24249941,3cyclictest774-21snmpd19:10:163
24249941,3cyclictest1957-21expr00:30:093
24249941,2cyclictest0-21swapper/321:00:113
24249941,2cyclictest0-21swapper/300:15:003
24249940,4cyclictest0-21swapper/321:55:123
24249940,4cyclictest0-21swapper/321:15:143
24249940,3cyclictest28958-21grep00:20:003
24249940,3cyclictest26761-21latency_hist23:10:003
24249940,3cyclictest25896-21python22:00:183
24249940,3cyclictest25847-21sed19:55:003
24249940,3cyclictest22546-21perl23:00:133
24249940,3cyclictest21701-21date21:55:013
24249940,3cyclictest21701-21date21:55:013
24249940,3cyclictest213422sleep320:50:103
24249940,3cyclictest1785-21cat22:20:023
24249940,3cyclictest15759-21latency_hist20:40:003
24249940,3cyclictest12355-21perl23:45:123
24249940,1cyclictest18776-21cron21:50:013
24249940,0cyclictest4985-21kworker/3:019:15:193
24209944,0cyclictest0-21swapper/220:26:212
24209941,1cyclictest0-21swapper/219:10:112
24209940,4cyclictest6459-21apt-get21:25:112
24209940,4cyclictest0-21swapper/222:06:202
24209940,4cyclictest0-21swapper/221:35:102
24209940,4cyclictest0-21swapper/220:47:242
24209940,4cyclictest0-21swapper/220:20:192
24209940,4cyclictest0-21swapper/219:55:102
24209940,4cyclictest0-21swapper/200:35:122
24209940,3cyclictest27307-21df_inode23:10:112
24209940,3cyclictest23377-21cut19:50:002
24209940,3cyclictest14852-21perl23:50:122
24209940,3cyclictest0-21swapper/223:45:102
24209940,1cyclictest4891-21ntp_states20:15:152
24159942,1cyclictest0-21swapper/100:25:101
24159941,2cyclictest0-21swapper/123:55:111
24159941,2cyclictest0-21swapper/122:30:111
24159941,2cyclictest0-21swapper/122:15:111
24159941,2cyclictest0-21swapper/122:05:111
24159941,2cyclictest0-21swapper/121:15:131
24159941,2cyclictest0-21swapper/119:35:101
24159940,4cyclictest0-21swapper/123:00:211
24159940,2cyclictest0-21swapper/122:00:101
24159940,2cyclictest0-21swapper/119:40:091
24119944,0cyclictest0-21swapper/019:25:550
24119943,1cyclictest31485-21cron23:20:000
24119942,1cyclictest19361-21/usr/sbin/munin22:55:180
24119942,1cyclictest16577-21diskstats19:35:120
24119942,1cyclictest0-21swapper/023:45:100
24119942,1cyclictest0-21swapper/022:45:110
24119941,2cyclictest0-21swapper/023:25:110
24119941,2cyclictest0-21swapper/020:40:100
24119941,2cyclictest0-21swapper/020:05:100
24119941,1cyclictest0-21swapper/000:15:100
24119940,4cyclictest25147-21gltestperf22:00:130
24119940,4cyclictest0-21swapper/020:55:110
24119940,4cyclictest0-21swapper/019:55:100
24119940,4cyclictest0-21swapper/019:45:090
24119940,3cyclictest9109-21perl19:20:100
24119940,3cyclictest2321-21expr22:20:110
24119940,3cyclictest21450-21wc00:05:010
24119940,3cyclictest1262-21dpkg21:15:010
24119940,1cyclictest5838-21tr19:15:120
24119940,1cyclictest31784-21/usr/sbin/munin22:15:130
24119940,1cyclictest29004-21/usr/sbin/munin00:20:170
24119940,1cyclictest28429-21/usr/sbin/munin20:00:150
24119940,1cyclictest24316-21/usr/sbin/munin23:05:190
24119940,1cyclictest21577-21/usr/sbin/munin00:05:190
24119940,1cyclictest1508-21/usr/sbin/munin00:30:100
24119940,1cyclictest13878-21/usr/sbin/munin21:40:200
22155240,0sleep222149-21gltestperf20:50:132
24249933,0cyclictest0-21swapper/322:52:083
24249932,1cyclictest9476-21cut22:35:133
24249932,1cyclictest774-21snmpd23:40:143
24249932,1cyclictest774-21snmpd22:55:023
24249932,1cyclictest774-21snmpd22:10:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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