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2025-12-16 - 15:01
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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 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270322199183,11sleep10-21swapper/107:05:551
272852190173,13sleep30-21swapper/307:09:093
269952189155,12sleep00-21swapper/007:05:250
271362180164,12sleep20-21swapper/207:07:152
275839972,5cyclictest8230-21kworker/3:111:05:183
275739971,5cyclictest0-21swapper/210:45:102
275839961,2cyclictest0-21swapper/309:45:103
275739960,6cyclictest0-21swapper/211:10:092
275649960,1cyclictest27245-21/usr/sbin/munin08:10:150
275839952,3cyclictest8230-21kworker/3:109:00:133
275839951,2cyclictest0-21swapper/309:20:123
275839950,5cyclictest0-21swapper/312:30:093
275839950,5cyclictest0-21swapper/310:05:163
275839950,2cyclictest0-21swapper/308:10:093
275739954,1cyclictest24013-21hddtemp_smartct09:10:132
275739950,4cyclictest0-21swapper/207:10:112
275709952,1cyclictest0-21swapper/108:15:111
275709951,2cyclictest0-21swapper/111:40:101
275709951,2cyclictest0-21swapper/108:20:101
275649950,5cyclictest0-21swapper/012:23:530
275839943,1cyclictest28225-21apt-get11:30:103
275839942,2cyclictest774-21snmpd11:52:563
275839942,1cyclictest774-21snmpd12:36:173
275839942,1cyclictest774-21snmpd12:00:063
275839942,1cyclictest774-21snmpd11:00:083
275839942,1cyclictest774-21snmpd10:31:383
275839942,1cyclictest774-21snmpd08:40:463
275839942,1cyclictest774-21snmpd08:29:533
275839942,1cyclictest0-21swapper/307:40:093
275839941,3cyclictest8230-21kworker/3:111:15:163
275839941,3cyclictest8230-21kworker/3:108:35:103
275839941,3cyclictest0-21swapper/312:05:113
275839941,2cyclictest0-21swapper/310:15:123
275839940,4cyclictest20649-21apt-get10:10:093
275839940,4cyclictest0-21swapper/312:25:093
275839940,4cyclictest0-21swapper/310:50:103
275839940,4cyclictest0-21swapper/310:40:103
275839940,4cyclictest0-21swapper/310:35:123
275839940,3cyclictest30803-21sed08:20:003
275839940,3cyclictest19788-21/usr/sbin/munin07:55:153
275839940,3cyclictest13804-21df08:50:123
275839940,3cyclictest13116-21sed09:55:013
275839940,3cyclictest0-21swapper/307:45:113
275839940,3cyclictest0-21swapper/307:20:093
275839940,2cyclictest0-21swapper/309:40:113
275739942,1cyclictest774-21snmpd12:38:442
275739942,1cyclictest774-21snmpd11:37:382
275739941,3cyclictest13696-21fschecks_count12:05:132
275739940,4cyclictest8165-21apt-get11:55:112
275739940,4cyclictest29110-21perl08:15:132
275739940,4cyclictest0-21swapper/212:30:132
275739940,4cyclictest0-21swapper/209:30:112
275739940,4cyclictest0-21swapper/207:55:092
275739940,4cyclictest0-21swapper/207:45:102
275739940,3cyclictest7930-21latency_hist11:55:012
275739940,3cyclictest5640-21cat11:50:022
275739940,3cyclictest21370-21grep11:15:132
275739940,3cyclictest17007-21irqstats07:50:142
275709944,0cyclictest0-21swapper/108:00:171
275709942,1cyclictest0-21swapper/111:10:101
275709942,1cyclictest0-21swapper/109:35:101
275709942,1cyclictest0-21swapper/109:20:111
275709941,2cyclictest0-21swapper/112:15:101
275709941,2cyclictest0-21swapper/111:50:121
275709941,2cyclictest0-21swapper/111:35:111
275709941,2cyclictest0-21swapper/109:30:111
275709941,2cyclictest0-21swapper/107:40:091
275649943,1cyclictest4596-21ntp_states09:35:150
275649943,1cyclictest25965-21cpuspeed11:25:120
275649943,1cyclictest25965-21cpuspeed11:25:120
275649943,1cyclictest21074-21cpuspeed_turbos09:05:130
275649942,1cyclictest9431-21ntp_states11:55:180
275649942,1cyclictest774-21snmpd10:25:080
275649942,1cyclictest774-21snmpd09:32:570
275649942,1cyclictest774-21snmpd08:47:560
275649942,1cyclictest774-21snmpd07:34:070
275649942,1cyclictest5753-21/usr/sbin/munin10:45:130
275649941,3cyclictest774-21snmpd11:22:230
275649941,2cyclictest774-21snmpd08:19:190
275649941,2cyclictest0-21swapper/010:55:110
275649941,2cyclictest0-21swapper/010:20:100
275649941,2cyclictest0-21swapper/009:20:120
275649941,2cyclictest0-21swapper/007:20:100
275649941,1cyclictest0-21swapper/012:10:090
275649941,1cyclictest0-21swapper/011:30:100
275649940,4cyclictest29043-21/usr/sbin/munin12:35:110
275649940,4cyclictest18265-21cut10:05:110
275649940,4cyclictest0-21swapper/012:19:220
275649940,4cyclictest0-21swapper/011:45:090
275649940,4cyclictest0-21swapper/011:40:160
275649940,4cyclictest0-21swapper/010:00:100
275649940,4cyclictest0-21swapper/009:28:230
275649940,4cyclictest0-21swapper/008:25:140
275649940,4cyclictest0-21swapper/008:00:100
275649940,4cyclictest0-21swapper/007:38:320
275649940,4cyclictest0-21swapper/007:19:110
275649940,4cyclictest0-21swapper/007:10:110
275649940,3cyclictest682-21idleruntime-cro08:25:000
275649940,3cyclictest5649-21cat10:45:010
275649940,3cyclictest23213-21cat10:15:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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