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2025-12-24 - 17:11
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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 highest latencies:
System rack3slot6.osadl.org (updated Wed Dec 24, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
68399911594,11cyclictest14-21ksoftirqd/012:10:140
68399911282,18cyclictest14-21ksoftirqd/009:25:130
68399911180,18cyclictest14-21ksoftirqd/011:10:130
68399910675,20cyclictest14-21ksoftirqd/009:10:130
68399910556,17cyclictest14-21ksoftirqd/012:30:160
68399910274,18cyclictest14-21ksoftirqd/007:30:130
68399910273,18cyclictest14-21ksoftirqd/009:30:160
68399910273,16cyclictest14-21ksoftirqd/008:35:110
68399910272,19cyclictest14-21ksoftirqd/012:20:160
68399910074,18cyclictest14-21ksoftirqd/009:00:140
68399910072,17cyclictest14-21ksoftirqd/007:40:140
6839999969,19cyclictest14-21ksoftirqd/007:35:150
6839999969,18cyclictest14-21ksoftirqd/009:40:130
6839999968,18cyclictest14-21ksoftirqd/010:35:140
6839999872,17cyclictest14-21ksoftirqd/011:15:120
6839999665,19cyclictest14-21ksoftirqd/012:00:140
6839999461,19cyclictest14-21ksoftirqd/010:10:170
6839999263,20cyclictest14-21ksoftirqd/007:10:130
6839999261,20cyclictest14-21ksoftirqd/007:15:140
6839999261,19cyclictest14-21ksoftirqd/009:50:140
6839999258,22cyclictest14-21ksoftirqd/010:30:150
6839999161,20cyclictest14-21ksoftirqd/008:05:240
6839999158,20cyclictest14-21ksoftirqd/007:50:140
683999906,44cyclictest14-21ksoftirqd/011:50:130
6839999062,15cyclictest0-21swapper/010:45:130
6839999062,15cyclictest0-21swapper/010:45:120
6839999059,18cyclictest14-21ksoftirqd/010:00:170
6839998960,20cyclictest14-21ksoftirqd/008:55:160
6839998418,57cyclictest0-21swapper/008:00:120
683999839,64cyclictest168-21usb-storage10:20:130
6839998349,23cyclictest14-21ksoftirqd/011:40:130
6839998349,23cyclictest14-21ksoftirqd/011:40:130
6839998248,26cyclictest14-21ksoftirqd/008:25:240
6839998144,24cyclictest14-21ksoftirqd/012:15:130
6839998049,18cyclictest14-21ksoftirqd/009:15:150
6839998010,37cyclictest8569-21kworker/0:210:25:150
6839997744,20cyclictest0-21swapper/010:50:170
6839997714,50cyclictest0-21swapper/008:40:230
6839997652,16cyclictest0-21swapper/008:10:120
6839997640,24cyclictest14-21ksoftirqd/011:35:120
6839997612,48cyclictest250-21systemd-journal11:05:130
6839997542,20cyclictest14-21ksoftirqd/011:00:140
6839997536,27cyclictest14-21ksoftirqd/011:55:160
6839997530,31cyclictest14-21ksoftirqd/007:25:130
6839997514,47cyclictest0-21swapper/008:20:110
6839997512,51cyclictest0-21swapper/010:05:130
624827516,49sleep00-21swapper/007:05:460
6839997443,24cyclictest31954-21sshd11:20:140
6839997416,47cyclictest0-21swapper/009:20:160
6839997413,49cyclictest0-21swapper/008:45:140
6839997413,46cyclictest0-21swapper/011:45:150
6839997314,46cyclictest14-21ksoftirqd/012:35:160
6839997237,29cyclictest14-21ksoftirqd/012:05:150
6839997234,26cyclictest14-21ksoftirqd/009:35:190
6839997212,49cyclictest0-21swapper/012:25:120
6839997210,50cyclictest0-21swapper/009:45:130
6839997210,50cyclictest0-21swapper/009:45:120
684399703,14cyclictest17409-21diskstats12:10:231
6839997030,29cyclictest14-21ksoftirqd/010:55:240
6843996920,33cyclictest26-21ksoftirqd/111:30:141
6839996935,22cyclictest0-21swapper/011:30:180
20922690,4sleep1251rcuc/108:25:221
6839996831,26cyclictest0-21swapper/008:50:110
6839996831,26cyclictest0-21swapper/007:20:150
652026820,37sleep10-21swapper/107:08:441
683999677,21cyclictest1258-21apt-get11:25:130
6839996735,23cyclictest448-21dbus-daemon08:20:010
6839996735,21cyclictest0-21swapper/009:55:250
6839996712,45cyclictest0-21swapper/009:05:120
6839996532,22cyclictest0-21swapper/008:30:420
684399637,13cyclictest26-21ksoftirqd/111:25:011
6843996339,9cyclictest13598-21telnet12:00:171
6843996334,22cyclictest26-21ksoftirqd/111:00:001
6843996333,17cyclictest26-21ksoftirqd/112:15:181
6839996332,22cyclictest0-21swapper/007:55:120
6839996327,26cyclictest0-21swapper/010:40:160
6843996236,8cyclictest1295-21telnet11:25:161
6843996230,14cyclictest26-21ksoftirqd/108:25:011
683999622,53cyclictest10179-21chrt10:17:340
6839996225,26cyclictest0-21swapper/007:45:150
6843996133,21cyclictest26-21ksoftirqd/109:40:011
684399613,13cyclictest7177-21cron08:40:011
6843996047,8cyclictest26-21ksoftirqd/109:11:171
6843996035,9cyclictest26-21ksoftirqd/112:20:171
684399603,21cyclictest444-21systemd-logind07:40:171
6843996031,10cyclictest500-21snmpd10:07:211
684399596,8cyclictest151rcu_preempt12:10:011
6843995937,15cyclictest26-21ksoftirqd/109:21:591
6843995936,17cyclictest26-21ksoftirqd/110:00:181
684399592,34cyclictest16833-21memory07:35:291
6843995919,21cyclictest151rcu_preempt09:35:011
6843995915,26cyclictest0-21swapper/110:15:131
6843995840,10cyclictest26-21ksoftirqd/110:00:011
6843995840,10cyclictest26-21ksoftirqd/107:55:011
6843995836,9cyclictest4869-21telnet11:35:181
6843995836,9cyclictest26-21ksoftirqd/107:10:351
6843995836,17cyclictest26-21ksoftirqd/110:25:331
6843995835,17cyclictest26-21ksoftirqd/108:15:211
6843995833,9cyclictest26-21ksoftirqd/107:45:371
6843995833,18cyclictest26-21ksoftirqd/107:15:121
684399583,21cyclictest27169-21apt-get08:05:231
6843995815,9cyclictest151rcu_preempt10:41:021
6843995740,11cyclictest26-21ksoftirqd/109:00:341
6843995740,11cyclictest26-21ksoftirqd/107:30:231
6843995740,10cyclictest500-21snmpd10:30:311
6843995740,10cyclictest26-21ksoftirqd/107:25:121
6843995737,13cyclictest26-21ksoftirqd/110:10:341
6843995736,9cyclictest29120-21telnet08:10:181
6843995733,9cyclictest10673-21telnet10:20:171
6843995732,18cyclictest26-21ksoftirqd/111:10:171
684399572,18cyclictest9253-21munin-run08:45:001
6843995640,10cyclictest26-21ksoftirqd/107:20:361
6843995639,11cyclictest26-21ksoftirqd/108:50:341
6843995637,11cyclictest26-21ksoftirqd/111:05:281
6843995635,17cyclictest26-21ksoftirqd/109:51:181
6843995615,35cyclictest250-21systemd-journal09:08:221
6843995540,10cyclictest500-21snmpd11:54:401
6843995539,10cyclictest26-21ksoftirqd/112:35:331
6843995539,10cyclictest26-21ksoftirqd/111:45:321
6843995539,10cyclictest26-21ksoftirqd/110:52:221
6843995539,10cyclictest26-21ksoftirqd/107:55:351
6843995538,10cyclictest26-21ksoftirqd/111:15:221
6843995538,10cyclictest26-21ksoftirqd/109:40:181
6843995538,10cyclictest26-21ksoftirqd/108:30:491
6843995438,9cyclictest26-21ksoftirqd/112:30:251
6843995438,9cyclictest26-21ksoftirqd/111:40:211
6843995438,9cyclictest26-21ksoftirqd/111:40:201
6843995438,9cyclictest26-21ksoftirqd/110:36:481
6843995438,10cyclictest26-21ksoftirqd/112:25:211
6843995438,10cyclictest26-21ksoftirqd/110:48:141
6843995438,10cyclictest26-21ksoftirqd/110:48:141
6843995438,10cyclictest26-21ksoftirqd/109:45:171
6843995438,10cyclictest26-21ksoftirqd/109:45:161
6843995438,10cyclictest26-21ksoftirqd/109:15:251
6843995438,10cyclictest26-21ksoftirqd/108:03:061
6843995437,10cyclictest26-21ksoftirqd/108:55:211
6843995437,10cyclictest26-21ksoftirqd/108:45:361
6843995436,10cyclictest26-21ksoftirqd/109:25:351
684399543,22cyclictest25657-21ntp_states11:00:331
6843995337,9cyclictest26-21ksoftirqd/111:55:261
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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