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2025-12-30 - 15:04
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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 30, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36282238222,11sleep10-21swapper/107:06:221
38262186169,12sleep30-21swapper/307:08:573
38282183166,12sleep00-21swapper/007:08:580
3604211598,12sleep20-21swapper/207:06:032
137892500,0sleep013787-21proc_pri07:25:180
9722100,0sleep10-21swapper/111:20:151
41069987,1cyclictest31-21ksoftirqd/207:40:122
41069972,2cyclictest31-21ksoftirqd/209:55:122
40979971,3cyclictest14936-21perf11:50:010
41069961,4cyclictest0-21swapper/211:45:112
41069961,0cyclictest81rcu_preempt08:20:002
41099951,3cyclictest774-21snmpd08:20:123
41099951,3cyclictest0-21swapper/311:15:143
41069955,0cyclictest31-21ksoftirqd/208:55:012
41069954,1cyclictest31-21ksoftirqd/207:30:002
41069952,2cyclictest0-21swapper/209:25:132
41069952,2cyclictest0-21swapper/208:35:132
41069950,0cyclictest81rcu_preempt11:45:002
41019951,2cyclictest0-21swapper/110:10:131
41019950,5cyclictest0-21swapper/111:59:431
40979950,3cyclictest0-21swapper/009:55:120
41099944,0cyclictest5105-21apt-get10:25:153
41099944,0cyclictest40-21ksoftirqd/307:40:013
41099944,0cyclictest31369-21kworker/3:207:20:173
41099944,0cyclictest27014-21kworker/3:111:26:363
41099943,1cyclictest23779-21awk11:00:183
41099943,1cyclictest19799-21latency_hist08:45:013
41099943,1cyclictest10133-21apt-get08:25:113
41099942,2cyclictest774-21snmpd10:09:463
41099942,2cyclictest774-21snmpd09:16:103
41099942,1cyclictest774-21snmpd10:45:223
41099941,3cyclictest774-21snmpd09:03:583
41099941,3cyclictest5163-21cat07:10:163
41099941,3cyclictest20917-21awk10:55:163
41099941,3cyclictest15589-21df08:35:153
41099941,2cyclictest0-21swapper/309:05:123
41099941,1cyclictest0-21swapper/310:20:133
41099941,1cyclictest0-21swapper/307:50:113
41099941,1cyclictest0-21swapper/307:40:123
41099940,4cyclictest17717-21apt-get09:45:123
41099940,4cyclictest0-21swapper/312:00:123
41099940,4cyclictest0-21swapper/310:41:373
41099940,4cyclictest0-21swapper/310:35:113
41099940,4cyclictest0-21swapper/309:55:113
41099940,4cyclictest0-21swapper/308:00:133
41099940,3cyclictest7299-21ntp_states07:15:013
41099940,3cyclictest32402-21apt-get09:10:123
41099940,3cyclictest18892-21ntp_states11:55:173
41099940,3cyclictest15677-21df_inode11:50:143
41099940,3cyclictest10216-21/usr/sbin/munin11:40:183
41099940,1cyclictest29884-21latency_hist08:00:013
41069943,1cyclictest20748-21cut10:55:162
41069943,0cyclictest31-21ksoftirqd/210:45:122
41069942,1cyclictest0-21swapper/209:20:142
41069941,2cyclictest81rcu_preempt12:35:112
41069941,2cyclictest0-21swapper/209:35:122
41069941,2cyclictest0-21swapper/209:30:032
41069941,1cyclictest0-21swapper/211:50:122
41069941,1cyclictest0-21swapper/208:00:132
41069940,4cyclictest6654-21munin-node07:15:012
41069940,4cyclictest0-21swapper/212:30:112
41069940,4cyclictest0-21swapper/212:15:122
41069940,4cyclictest0-21swapper/212:10:122
41069940,4cyclictest0-21swapper/211:15:162
41069940,4cyclictest0-21swapper/211:05:122
41069940,4cyclictest0-21swapper/208:25:122
41069940,4cyclictest0-21swapper/208:05:162
41069940,4cyclictest0-21swapper/207:35:112
41069940,4cyclictest0-21swapper/207:20:112
41069940,3cyclictest8407-21hddtemp_smartct10:30:162
41069940,3cyclictest7537-21cut10:30:012
41069940,3cyclictest7100-21users11:30:222
41069940,3cyclictest29754-21apt-config11:15:012
41069940,3cyclictest28611-21irqstats10:05:192
41069940,3cyclictest24663-21latency_hist11:05:002
41069940,3cyclictest15247-21apt09:40:122
41069940,3cyclictest0-21swapper/212:00:152
41069940,2cyclictest0-21swapper/212:20:132
41069940,1cyclictest3280-21hddtemp_smartct09:15:152
41069940,1cyclictest13054-21df10:40:142
41019944,0cyclictest0-21swapper/110:32:431
41019941,3cyclictest0-21swapper/111:50:111
41019941,3cyclictest0-21swapper/107:40:111
41019941,2cyclictest0-21swapper/112:10:121
41019941,2cyclictest0-21swapper/111:30:121
41019941,2cyclictest0-21swapper/109:30:141
41019941,2cyclictest0-21swapper/109:05:121
41019941,2cyclictest0-21swapper/108:55:101
41019941,2cyclictest0-21swapper/107:20:101
41019940,4cyclictest0-21swapper/110:42:201
41019940,4cyclictest0-21swapper/107:38:061
41019940,0cyclictest0-21swapper/108:41:411
41019940,0cyclictest0-21swapper/108:20:431
41019940,0cyclictest0-21swapper/107:50:291
40979944,0cyclictest3-21ksoftirqd/012:00:000
40979943,1cyclictest25474-21tr07:50:120
40979943,1cyclictest20113-21/usr/sbin/munin12:00:160
40979942,1cyclictest15246-21/usr/sbin/munin09:40:200
40979941,1cyclictest0-21swapper/007:45:120
40979940,4cyclictest30134-21apt-get08:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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