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2026-08-06 - 07:57
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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 rack3slot6.osadl.org (updated Thu Aug 06, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1910129521,27sleep00-21swapper/019:06:140
19631998969,13cyclictest503-21snmpd21:25:260
19637998845,14cyclictest503-21snmpd23:35:371
19637998554,9cyclictest26-21ksoftirqd/120:05:401
19637998357,9cyclictest796-21ntpq21:15:291
19637998354,10cyclictest1827-21ntpq00:20:291
19637998254,9cyclictest26-21ksoftirqd/123:05:181
19631998057,10cyclictest14-21ksoftirqd/019:20:130
19637997955,12cyclictest12207-21ntpq20:15:391
19637997953,13cyclictest26-21ksoftirqd/120:56:231
307902760,6chrt30788-21apt-get21:10:111
19631997446,15cyclictest0-21swapper/019:35:120
19631997253,9cyclictest14-21ksoftirqd/022:25:110
19631997123,42cyclictest0-21swapper/023:00:130
19637997035,18cyclictest26-21ksoftirqd/121:33:381
19631997043,14cyclictest5625-21chrt20:00:140
19631997015,48cyclictest0-21swapper/020:30:110
19631997013,51cyclictest0-21swapper/022:20:140
19637996946,16cyclictest26-21ksoftirqd/120:39:261
19631996943,13cyclictest0-21swapper/020:40:130
19631996915,48cyclictest0-21swapper/023:45:110
19637996846,15cyclictest26-21ksoftirqd/122:35:251
19637996814,25cyclictest17541-21runrttasks22:02:551
19637996814,25cyclictest17541-21runrttasks22:02:551
19631996851,9cyclictest14-21ksoftirqd/000:10:100
19631996845,14cyclictest0-21swapper/020:45:110
19631996845,14cyclictest0-21swapper/020:45:110
19631996838,20cyclictest14-21ksoftirqd/022:40:130
19631996812,50cyclictest0-21swapper/023:55:240
1931226834,24sleep10-21swapper/119:08:311
19637996715,26cyclictest26-21ksoftirqd/120:30:361
19637996712,12cyclictest251rcuc/123:00:121
1963199677,22cyclictest21446-21apt-get22:15:110
1963199677,22cyclictest21446-21apt-get22:15:110
19631996741,15cyclictest0-21swapper/022:45:130
19637996612,24cyclictest562-21runrttasks22:14:011
19631996637,16cyclictest0-21swapper/020:25:140
19631996612,48cyclictest0-21swapper/019:10:120
19637996543,15cyclictest26-21ksoftirqd/120:29:551
19637996525,13cyclictest26-21ksoftirqd/119:50:191
19637996513,20cyclictest20895-21/usr/sbin/munin23:45:371
19631996513,47cyclictest0-21swapper/020:20:130
19637996423,13cyclictest26-21ksoftirqd/120:40:151
19637996415,23cyclictest26-21ksoftirqd/122:20:291
1963199643,23cyclictest29137-21cut21:05:190
19637996228,14cyclictest26-21ksoftirqd/120:10:051
19637996225,14cyclictest26-21ksoftirqd/120:55:011
19637996223,13cyclictest26-21ksoftirqd/121:05:351
19631996239,12cyclictest14-21ksoftirqd/023:20:110
19631996232,17cyclictest0-21swapper/022:35:130
19637996132,14cyclictest26-21ksoftirqd/123:00:011
19637996124,11cyclictest26-21ksoftirqd/100:26:071
19637996122,14cyclictest26-21ksoftirqd/119:40:291
19637996110,44cyclictest7386-21apt-get21:35:121
19631996134,17cyclictest14-21ksoftirqd/022:10:120
19631996134,15cyclictest0-21swapper/019:30:110
1963799602,8cyclictest151rcu_preempt23:58:581
19637996025,22cyclictest26-21ksoftirqd/119:24:431
19637996025,13cyclictest26-21ksoftirqd/100:09:011
19637996023,13cyclictest26-21ksoftirqd/123:50:291
19637996023,13cyclictest26-21ksoftirqd/119:35:261
19637996022,12cyclictest26-21ksoftirqd/119:25:341
1963199609,13cyclictest27062-21latency_hist21:00:000
1963199604,51cyclictest9017-21ls21:40:000
1963199603,18cyclictest8443-21sed20:05:400
19631996026,25cyclictest14-21ksoftirqd/021:45:110
19637995941,12cyclictest22178-21ntpq22:15:291
19637995941,12cyclictest22178-21ntpq22:15:291
19637995925,12cyclictest26-21ksoftirqd/123:40:161
19637995924,22cyclictest26-21ksoftirqd/120:03:271
19637995921,20cyclictest32218-21awk22:45:191
19637995920,13cyclictest26-21ksoftirqd/121:55:281
19637995917,20cyclictest26-21ksoftirqd/122:40:261
19637995916,19cyclictest26-21ksoftirqd/100:35:181
19631995929,17cyclictest0-21swapper/023:25:250
19637995821,15cyclictest26-21ksoftirqd/119:20:011
19637995818,20cyclictest26-21ksoftirqd/100:00:051
1963199589,44cyclictest608-21sort21:15:260
19631995830,24cyclictest14-21ksoftirqd/000:01:380
19631995830,15cyclictest0-21swapper/019:55:240
19631995829,16cyclictest0-21swapper/021:30:150
19631995822,31cyclictest243-21systemd-journal21:50:410
1963199582,18cyclictest18193-21python323:35:340
19631995820,12cyclictest13056-21cron20:19:590
1963799578,23cyclictest26-21ksoftirqd/121:20:441
19637995719,21cyclictest26-21ksoftirqd/121:25:281
19637995719,20cyclictest26-21ksoftirqd/119:45:171
1963199578,22cyclictest19624-21cyclictest00:20:140
19631995735,16cyclictest1865-21/usr/sbin/munin21:20:350
19631995729,19cyclictest14-21ksoftirqd/019:15:140
19631995729,16cyclictest0-21swapper/022:55:120
19631995729,16cyclictest0-21swapper/022:50:120
19631995728,18cyclictest0-21swapper/019:45:140
19631995727,18cyclictest0-21swapper/023:30:140
19631995719,33cyclictest18839-21timerandwakeup22:05:340
19631995719,32cyclictest14485-21aten2.4-expect21:55:190
19631995718,34cyclictest243-21systemd-journal22:30:490
1963799567,24cyclictest26-21ksoftirqd/100:15:081
19637995633,17cyclictest12042-21sort23:20:171
19637995623,15cyclictest26-21ksoftirqd/120:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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