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2026-09-04 - 19:52
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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 Fri Sep 04, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138099131101,21cyclictest14-21ksoftirqd/012:35:240
13809911181,18cyclictest14-21ksoftirqd/008:00:110
13809910978,19cyclictest14-21ksoftirqd/011:20:140
13809910774,22cyclictest14-21ksoftirqd/012:25:240
13809910774,20cyclictest14-21ksoftirqd/010:30:130
13809910770,24cyclictest14-21ksoftirqd/008:15:110
13809910712,80cyclictest0-21swapper/011:05:120
13809910563,30cyclictest14-21ksoftirqd/009:25:140
13809910557,30cyclictest14-21ksoftirqd/010:35:140
13809910472,20cyclictest14-21ksoftirqd/008:45:130
13809910362,26cyclictest14-21ksoftirqd/009:40:140
13809910312,76cyclictest0-21swapper/011:15:100
13809910312,26cyclictest0-21swapper/009:35:110
1380991016,80cyclictest12510-21diskmemload09:10:120
13809910111,78cyclictest0-21swapper/010:00:130
1200210017,39sleep00-21swapper/007:09:310
1380999910,76cyclictest0-21swapper/012:10:100
138099989,76cyclictest0-21swapper/008:40:110
1380999852,35cyclictest14-21ksoftirqd/008:05:150
1380999755,30cyclictest14-21ksoftirqd/009:05:140
1380999755,30cyclictest0-21swapper/007:15:130
3206429641,37sleep10-21swapper/107:05:121
1380999543,40cyclictest14-21ksoftirqd/009:50:150
1380999529,29cyclictest0-21swapper/007:10:150
188352930,6chrt18836-21/usr/sbin/munin12:30:090
138099938,44cyclictest503-21snmpd11:40:150
1380999339,37cyclictest14-21ksoftirqd/008:30:130
1380999339,37cyclictest14-21ksoftirqd/008:30:130
1380999330,49cyclictest0-21swapper/008:25:140
1380999325,48cyclictest0-21swapper/011:30:170
1380999257,24cyclictest0-21swapper/011:55:130
1380999230,50cyclictest0-21swapper/010:05:100
1380999211,64cyclictest0-21swapper/008:20:110
138099916,67cyclictest562-21runrttasks10:10:170
1380999144,33cyclictest14-21ksoftirqd/012:05:140
138099908,40cyclictest25639-21munin-run08:15:000
1380999051,29cyclictest14-21ksoftirqd/007:55:240
1380999035,39cyclictest14-21ksoftirqd/010:40:130
1380998945,31cyclictest14-21ksoftirqd/008:35:150
1380998936,40cyclictest0-21swapper/010:50:150
1380998925,46cyclictest14-21ksoftirqd/009:45:120
1380998925,46cyclictest14-21ksoftirqd/009:45:120
1380998921,48cyclictest0-21swapper/009:55:250
1380998914,61cyclictest0-21swapper/011:50:170
1380998913,62cyclictest0-21swapper/010:45:120
1380998911,63cyclictest0-21swapper/011:00:140
138099886,60cyclictest6848-21runrttasks10:25:130
1380998813,60cyclictest0-21swapper/012:15:110
1380998813,60cyclictest0-21swapper/012:15:110
1380998811,64cyclictest0-21swapper/011:35:120
1380998810,27cyclictest0-21swapper/009:30:130
1380998740,32cyclictest14-21ksoftirqd/007:50:130
1380998711,63cyclictest0-21swapper/011:45:110
138099868,64cyclictest562-21runrttasks11:25:130
1380998611,61cyclictest0-21swapper/007:25:130
1380998611,59cyclictest0-21swapper/007:40:130
1380998425,42cyclictest14-21ksoftirqd/007:20:230
138099839,53cyclictest0-21swapper/011:10:170
138099839,53cyclictest0-21swapper/009:00:100
1380998238,33cyclictest0-21swapper/008:50:130
1380998212,49cyclictest0-21swapper/012:00:240
1380998211,51cyclictest0-21swapper/010:55:120
1380998210,57cyclictest0-21swapper/009:20:120
1380998011,49cyclictest0-21swapper/009:15:100
1380998010,48cyclictest0-21swapper/008:55:100
138099795,58cyclictest0-21swapper/007:35:210
1380997911,50cyclictest0-21swapper/007:30:130
1380997910,49cyclictest0-21swapper/010:15:130
1380997836,30cyclictest0-21swapper/007:45:110
1380997827,28cyclictest0-21swapper/010:20:120
1380997810,48cyclictest0-21swapper/012:20:130
1385997225,19cyclictest1372-21cyclictest12:00:201
138599699,37cyclictest11313-21apt-get07:35:161
1385996621,29cyclictest0-21swapper/108:10:131
1385996616,28cyclictest0-21swapper/109:45:111
1385996616,28cyclictest0-21swapper/109:45:111
1385996613,33cyclictest0-21swapper/108:05:121
138599656,12cyclictest0-21swapper/111:31:411
138599645,29cyclictest0-21swapper/112:25:571
75712628,11sleep10-21swapper/112:00:021
1385996244,11cyclictest26-21ksoftirqd/108:23:341
1385996242,15cyclictest26-21ksoftirqd/108:04:201
1385996231,18cyclictest26-21ksoftirqd/107:10:051
138599615,12cyclictest0-21swapper/112:07:071
1385996133,17cyclictest26-21ksoftirqd/109:24:501
1385996131,18cyclictest26-21ksoftirqd/109:58:071
1385996115,41cyclictest26-21ksoftirqd/111:25:261
1385996112,31cyclictest0-21swapper/110:20:131
1385996042,11cyclictest26-21ksoftirqd/112:40:011
1385996041,11cyclictest26-21ksoftirqd/110:15:011
1385996033,13cyclictest26-21ksoftirqd/107:55:051
1385996013,26cyclictest0-21swapper/111:20:161
138599597,46cyclictest0-21swapper/107:52:381
1385995942,11cyclictest26-21ksoftirqd/112:25:001
1385995942,10cyclictest26-21ksoftirqd/110:45:161
1385995941,11cyclictest26-21ksoftirqd/111:50:011
1385995941,11cyclictest26-21ksoftirqd/110:00:111
1385995941,11cyclictest26-21ksoftirqd/107:50:001
1385995842,10cyclictest26-21ksoftirqd/109:05:191
1385995841,10cyclictest26-21ksoftirqd/109:25:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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