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2026-04-24 - 18:03
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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 Apr 24, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4241999653,38cyclictest26-21ksoftirqd/111:55:141
378329416,32sleep10-21swapper/107:07:151
4241998330,9cyclictest26-21ksoftirqd/112:15:261
4241998260,10cyclictest26-21ksoftirqd/108:35:221
424099803,49cyclictest27124-21ntp_states11:10:280
4241997650,15cyclictest26-21ksoftirqd/109:30:231
405327616,51sleep00-21swapper/007:09:360
4241997546,19cyclictest26-21ksoftirqd/110:55:131
154982740,19sleep0171rcuc/009:10:020
4240997340,27cyclictest10344-21telnet10:25:250
4241997237,9cyclictest26-21ksoftirqd/109:15:221
4241997235,31cyclictest26-21ksoftirqd/109:50:001
4241997043,21cyclictest26-21ksoftirqd/110:05:111
4240997032,16cyclictest14-21ksoftirqd/011:27:370
70472690,6sleep10-21swapper/110:15:241
424199699,54cyclictest36-21kcompactd009:20:121
424199699,54cyclictest36-21kcompactd009:20:121
4241996941,18cyclictest26-21ksoftirqd/107:50:231
4241996927,37cyclictest26-21ksoftirqd/111:50:261
4240996935,28cyclictest1014-21telnet11:30:150
4241996840,19cyclictest26-21ksoftirqd/108:05:241
4241996840,19cyclictest26-21ksoftirqd/107:10:111
4241996838,18cyclictest0-21swapper/110:20:131
4241996826,37cyclictest26-21ksoftirqd/110:35:341
4241996740,19cyclictest562-21runrttasks08:30:101
4241996737,20cyclictest24565-21taskset09:35:131
4241996725,36cyclictest26-21ksoftirqd/112:10:351
4240996737,17cyclictest14-21ksoftirqd/009:30:200
4240996731,30cyclictest14-21ksoftirqd/012:15:300
4240996731,29cyclictest14-21ksoftirqd/009:55:030
4240996725,38cyclictest14-21ksoftirqd/008:19:560
4240996717,20cyclictest14-21ksoftirqd/007:50:090
4241996638,17cyclictest0-21swapper/112:30:131
4241996637,20cyclictest26-21ksoftirqd/111:15:121
4241996636,19cyclictest26-21ksoftirqd/110:10:111
424099666,19cyclictest9722-21apt-get11:55:130
4240996632,28cyclictest14-21ksoftirqd/008:05:110
4240996631,8cyclictest14-21ksoftirqd/007:55:340
424099663,15cyclictest23331-21seq08:00:250
4240996623,30cyclictest14-21ksoftirqd/011:15:210
4240996619,20cyclictest14-21ksoftirqd/007:25:120
424199657,14cyclictest26-21ksoftirqd/108:30:001
4241996539,18cyclictest0-21swapper/109:25:151
4241996533,18cyclictest0-21swapper/111:25:141
4241996516,18cyclictest0-21swapper/108:10:111
4240996538,19cyclictest7982-21apt-get11:50:120
4240996530,29cyclictest14-21ksoftirqd/012:25:250
424199645,12cyclictest26-21ksoftirqd/109:00:001
4241996440,14cyclictest0-21swapper/110:00:111
4241996423,37cyclictest26-21ksoftirqd/111:45:151
424099649,40cyclictest0-21swapper/010:35:310
424099648,39cyclictest0-21swapper/011:00:440
4240996442,16cyclictest13928-21ntpq12:05:280
4240996430,12cyclictest14-21ksoftirqd/011:35:290
4240996430,11cyclictest14-21ksoftirqd/008:10:280
4240996421,23cyclictest17577-21entropy07:45:210
424199636,13cyclictest26-21ksoftirqd/110:50:011
4240996331,16cyclictest14-21ksoftirqd/009:50:150
4240996331,10cyclictest14-21ksoftirqd/010:10:120
4240996330,27cyclictest31977-21telnet08:25:160
424099632,33cyclictest14-21ksoftirqd/009:15:400
4240996319,20cyclictest14-21ksoftirqd/009:49:060
4240996316,20cyclictest14-21ksoftirqd/010:40:160
424199626,22cyclictest26-21ksoftirqd/109:05:001
4241996238,14cyclictest0-21swapper/108:50:101
4241996232,20cyclictest0-21swapper/109:40:121
4241996232,20cyclictest0-21swapper/109:40:121
424199623,11cyclictest1-21systemd11:40:011
424199622,10cyclictest31420-21idleruntime-cro09:55:011
4241996216,42cyclictest0-21swapper/111:40:211
4240996238,18cyclictest14-21ksoftirqd/008:34:540
4240996237,9cyclictest14-21ksoftirqd/008:45:370
4240996237,18cyclictest14-21ksoftirqd/012:30:340
4240996231,26cyclictest503-21snmpd08:43:540
4240996230,11cyclictest14-21ksoftirqd/007:40:080
4240996228,9cyclictest14-21ksoftirqd/012:04:340
4240996227,23cyclictest14-21ksoftirqd/010:05:160
4240996221,19cyclictest14-21ksoftirqd/012:40:000
4240996216,8cyclictest151rcu_preempt08:39:000
4240996216,20cyclictest14-21ksoftirqd/010:55:290
128482620,7sleep112851-21unixbench_multi07:30:351
424199614,14cyclictest26-21ksoftirqd/109:09:011
424199613,11cyclictest457-21dbus-daemon12:40:001
424199612,13cyclictest22592-21sendmail08:00:001
4241996115,12cyclictest0-21swapper/112:20:401
4240996137,18cyclictest14-21ksoftirqd/009:35:170
4240996136,9cyclictest14-21ksoftirqd/008:50:130
4240996132,14cyclictest14-21ksoftirqd/009:15:010
4240996130,12cyclictest14-21ksoftirqd/010:50:010
4240996128,11cyclictest14-21ksoftirqd/010:20:350
424099612,36cyclictest14-21ksoftirqd/007:10:140
4240996114,7cyclictest151rcu_preempt11:09:000
424199607,13cyclictest26-21ksoftirqd/108:50:011
424199603,16cyclictest11872-21ls10:30:011
4241996031,15cyclictest0-21swapper/107:35:121
4240996036,17cyclictest14-21ksoftirqd/012:20:070
4240996029,11cyclictest14-21ksoftirqd/009:25:240
4240996028,28cyclictest14-21ksoftirqd/011:42:220
4240996028,11cyclictest14-21ksoftirqd/007:20:300
4240996027,11cyclictest14-21ksoftirqd/010:15:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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