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2025-12-19 - 22:51
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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 Fri Dec 19, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215052215198,12sleep30-21swapper/307:08:223
216142198183,10sleep10-21swapper/107:09:441
214752178162,12sleep00-21swapper/007:07:590
194162171154,13sleep20-21swapper/207:05:072
112602410,0sleep10-21swapper/112:10:111
2180899101,7cyclictest0-21swapper/312:25:103
218009991,4cyclictest432-21basename09:40:020
218009991,4cyclictest25464-21munin-run09:25:020
218009971,3cyclictest15513-21idleruntime-cro10:10:010
218009970,3cyclictest18278-21cron12:25:000
218089960,6cyclictest0-21swapper/309:15:123
218009960,5cyclictest25806-21latency_hist10:30:000
218009960,5cyclictest20873-21apt-get10:20:020
218089955,0cyclictest40-21ksoftirqd/312:40:003
218089951,3cyclictest0-21swapper/308:30:113
218049950,5cyclictest0-21swapper/208:10:032
218049950,4cyclictest26192-21apt-get11:35:122
218049950,4cyclictest24397-21munin-node07:15:012
218049950,4cyclictest0-21swapper/209:35:122
218019951,3cyclictest0-21swapper/108:55:131
218019951,2cyclictest0-21swapper/110:00:101
218019951,2cyclictest0-21swapper/109:10:131
218019951,2cyclictest0-21swapper/107:10:111
218009952,3cyclictest774-21snmpd11:35:200
218009951,4cyclictest7724-21munin-run08:50:000
218009951,3cyclictest0-21swapper/007:34:560
218009950,5cyclictest2776-21tr08:40:010
218009950,5cyclictest200542sleep009:12:160
218009950,5cyclictest0-21swapper/007:40:000
218009950,4cyclictest9016-21perl09:55:130
218009950,4cyclictest25099-21memory07:15:010
21468250,2sleep231-21ksoftirqd/209:15:142
29849240,0sleep20-21swapper/210:35:172
218089944,0cyclictest40-21ksoftirqd/307:45:003
218089944,0cyclictest19951-21kworker/3:110:28:403
218089944,0cyclictest0-21swapper/309:55:173
218089943,1cyclictest27776-21ls08:25:013
218089942,2cyclictest40-21ksoftirqd/311:10:203
218089942,1cyclictest0-21swapper/311:40:133
218089941,2cyclictest0-21swapper/312:05:123
218089941,2cyclictest0-21swapper/311:50:123
218089941,2cyclictest0-21swapper/311:20:143
218089941,2cyclictest0-21swapper/311:00:133
218089941,2cyclictest0-21swapper/310:35:103
218089941,2cyclictest0-21swapper/309:40:143
218089941,2cyclictest0-21swapper/308:05:113
218089941,1cyclictest0-21swapper/310:00:113
218089940,4cyclictest0-21swapper/312:00:113
218089940,4cyclictest0-21swapper/311:45:113
218089940,4cyclictest0-21swapper/310:55:113
218089940,4cyclictest0-21swapper/308:40:123
218089940,3cyclictest552-21apt-get07:30:113
218089940,3cyclictest29298-21open_inodes08:25:163
218089940,3cyclictest26192-21apt-get11:35:113
218089940,3cyclictest24493-21pmu-power07:15:013
218089940,3cyclictest21922-21/usr/sbin/munin07:10:123
218089940,3cyclictest17960-21latency_hist10:15:013
218089940,3cyclictest13580-21latency_hist11:10:013
218089940,3cyclictest0-21swapper/312:10:143
218089940,3cyclictest0-21swapper/307:20:003
218049944,0cyclictest0-21swapper/212:00:232
218049944,0cyclictest0-21swapper/209:50:112
218049944,0cyclictest0-21swapper/209:50:102
218049944,0cyclictest0-21swapper/208:07:012
218049943,1cyclictest23554-21df08:15:102
218049941,3cyclictest29108-21cat09:30:142
218049941,2cyclictest0-21swapper/210:10:112
218049941,2cyclictest0-21swapper/209:00:132
218049940,4cyclictest8670-21apt-get11:00:122
218049940,4cyclictest13256-21apt-get10:05:122
218049940,4cyclictest0-21swapper/212:25:092
218049940,4cyclictest0-21swapper/212:05:112
218049940,4cyclictest0-21swapper/210:58:172
218049940,4cyclictest0-21swapper/209:14:052
218049940,4cyclictest0-21swapper/208:40:292
218049940,4cyclictest0-21swapper/207:50:112
218049940,4cyclictest0-21swapper/207:14:542
218049940,3cyclictest954-21latency_hist11:50:002
218049940,3cyclictest2757-21latency_hist08:40:002
218049940,3cyclictest21987-21memory10:20:162
218049940,3cyclictest21001-21cron11:25:002
218049940,3cyclictest18457-21cat12:25:002
218049940,3cyclictest17063-21mailstats09:05:202
218049940,3cyclictest13064-21cut09:00:012
218049940,3cyclictest1208-21df09:40:142
218049940,3cyclictest0-21swapper/210:25:012
218049940,1cyclictest28064-21tr07:20:112
218019944,0cyclictest0-21swapper/110:55:011
218019944,0cyclictest0-21swapper/109:55:121
218019941,2cyclictest0-21swapper/111:05:101
218019941,2cyclictest0-21swapper/108:25:111
218019941,2cyclictest0-21swapper/108:05:121
218019940,4cyclictest0-21swapper/108:31:151
218019940,3cyclictest0-21swapper/112:35:101
218009941,3cyclictest774-21snmpd07:49:550
218009941,3cyclictest0-21swapper/012:35:100
218009941,2cyclictest0-21swapper/010:45:120
218009941,2cyclictest0-21swapper/008:10:120
218009941,1cyclictest0-21swapper/011:20:140
218009941,1cyclictest0-21swapper/010:55:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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