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2026-07-12 - 13:30
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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 Sun Jul 12, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9009912611,61cyclictest0-21swapper/120:50:131
8989911787,17cyclictest14-21ksoftirqd/021:50:230
8989911587,18cyclictest14-21ksoftirqd/021:45:140
8989911582,19cyclictest14-21ksoftirqd/020:15:120
8989911178,22cyclictest14-21ksoftirqd/022:50:130
8989911178,22cyclictest14-21ksoftirqd/022:50:130
8989911082,19cyclictest14-21ksoftirqd/019:45:140
8989911077,22cyclictest14-21ksoftirqd/023:25:140
9009910861,33cyclictest26-21ksoftirqd/123:20:111
8989910878,18cyclictest14-21ksoftirqd/020:25:150
898991067,86cyclictest6468-21runrttasks20:55:130
898991067,86cyclictest6468-21runrttasks20:55:130
8989910164,23cyclictest14-21ksoftirqd/023:55:150
8989910066,20cyclictest14-21ksoftirqd/023:50:140
898999912,73cyclictest0-21swapper/022:40:130
898999759,24cyclictest14-21ksoftirqd/020:50:130
898999712,72cyclictest0-21swapper/022:10:210
898999665,19cyclictest14-21ksoftirqd/021:10:120
898999612,70cyclictest0-21swapper/021:00:130
898999612,69cyclictest0-21swapper/021:55:150
898999555,26cyclictest14-21ksoftirqd/000:30:130
898999510,33cyclictest0-21swapper/023:10:130
898999510,33cyclictest0-21swapper/023:10:130
898999462,18cyclictest14-21ksoftirqd/000:10:150
898999455,25cyclictest14-21ksoftirqd/019:10:130
898999414,30cyclictest0-21swapper/022:35:120
898999259,20cyclictest14-21ksoftirqd/019:15:130
898999257,23cyclictest14-21ksoftirqd/019:20:160
898999256,23cyclictest14-21ksoftirqd/000:00:130
898999030,47cyclictest14-21ksoftirqd/022:05:130
898999014,62cyclictest0-21swapper/019:35:150
89899898,64cyclictest562-21runrttasks19:40:110
898998948,29cyclictest14-21ksoftirqd/019:30:150
898998947,30cyclictest14-21ksoftirqd/019:55:120
898998852,24cyclictest14-21ksoftirqd/019:50:150
898998850,26cyclictest14-21ksoftirqd/023:35:150
898998813,60cyclictest0-21swapper/023:05:140
89899878,63cyclictest2714-21munin-node23:40:130
898998749,26cyclictest14-21ksoftirqd/021:30:150
898998740,35cyclictest14-21ksoftirqd/021:25:120
898998651,23cyclictest14-21ksoftirqd/022:25:130
898998613,58cyclictest0-21swapper/023:30:110
898998517,53cyclictest0-21swapper/020:30:120
898998424,49cyclictest0-21swapper/021:05:150
898998420,52cyclictest0-21swapper/021:15:150
898998319,51cyclictest0-21swapper/020:45:120
898998319,44cyclictest26587-21sed23:20:360
898998311,56cyclictest503-21snmpd19:25:190
89899829,58cyclictest0-21swapper/000:20:140
898998244,27cyclictest14-21ksoftirqd/023:45:140
898998216,52cyclictest0-21swapper/020:35:140
898998119,50cyclictest0-21swapper/022:45:160
898998118,50cyclictest0-21swapper/021:20:150
898998118,48cyclictest0-21swapper/020:20:130
898998117,51cyclictest0-21swapper/022:30:130
898998117,50cyclictest0-21swapper/020:40:130
898998116,52cyclictest0-21swapper/000:15:240
898998113,53cyclictest0-21swapper/022:55:130
898998031,36cyclictest14-21ksoftirqd/020:05:120
898998018,50cyclictest0-21swapper/023:00:120
898998017,52cyclictest0-21swapper/020:10:120
898998017,52cyclictest0-21swapper/020:00:230
898997919,48cyclictest0-21swapper/022:20:120
898997918,19cyclictest22920-21grep21:40:260
898997917,49cyclictest0-21swapper/022:00:150
898997916,49cyclictest0-21swapper/021:35:130
898997916,47cyclictest0-21swapper/023:15:160
898997915,47cyclictest0-21swapper/000:05:120
900997837,25cyclictest26-21ksoftirqd/122:05:131
898997838,30cyclictest14-21ksoftirqd/000:25:120
898997617,42cyclictest0-21swapper/022:15:130
3274827516,49sleep00-21swapper/019:05:470
90099728,42cyclictest36-21kcompactd019:25:161
900997117,35cyclictest0-21swapper/120:10:091
90099706,43cyclictest992-21seq22:10:211
898997019,25cyclictest503-21snmpd00:35:220
898997019,25cyclictest503-21snmpd00:35:220
900996822,9cyclictest26-21ksoftirqd/122:40:311
47426739,19sleep10-21swapper/119:07:421
900996637,10cyclictest1378-21telnet20:40:171
900996628,22cyclictest0-21swapper/123:00:101
900996617,33cyclictest26-21ksoftirqd/120:20:121
900996613,33cyclictest0-21swapper/121:20:121
900996524,26cyclictest0-21swapper/122:15:111
900996341,9cyclictest14139-21telnet19:45:151
900996315,31cyclictest0-21swapper/121:00:121
90099628,35cyclictest202302chrt23:05:131
90099612,32cyclictest30324-21runrttasks23:32:341
900996037,17cyclictest26-21ksoftirqd/122:24:191
900996020,13cyclictest26-21ksoftirqd/100:15:051
900996013,11cyclictest0-21swapper/100:05:301
900995938,16cyclictest26-21ksoftirqd/122:00:291
900995914,30cyclictest0-21swapper/121:35:111
900995912,29cyclictest0-21swapper/120:30:141
90099583,19cyclictest5718-21/usr/sbin/munin19:20:311
900995818,25cyclictest26-21ksoftirqd/121:35:001
900995816,20cyclictest26-21ksoftirqd/121:50:491
900995815,11cyclictest0-21swapper/122:25:181
900995810,42cyclictest0-21swapper/119:40:261
90099579,42cyclictest26-21ksoftirqd/121:45:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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