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2026-09-02 - 14:54
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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 Wed Sep 02, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32225210646,17sleep00-21swapper/007:08:040
236232920,5chrt22538-21/usr/sbin/munin08:10:361
3239828831,44sleep10-21swapper/107:09:241
32583998049,10cyclictest14-21ksoftirqd/011:15:140
32590997759,11cyclictest26-21ksoftirqd/111:45:101
199152750,5sleep10-21swapper/108:00:341
171352730,6sleep0171rcuc/012:25:340
3258399706,56cyclictest25482-21apt-get09:50:130
3258399705,56cyclictest3891-21apt-get10:20:120
208112690,7sleep020814-21grep09:35:270
3258399685,55cyclictest10950-21apt-get12:10:130
32583996841,10cyclictest14-21ksoftirqd/011:50:130
32583996835,27cyclictest14-21ksoftirqd/007:40:190
3258399667,18cyclictest0-21swapper/012:20:140
32583996636,25cyclictest14-21ksoftirqd/007:39:000
32590996515,44cyclictest0-21swapper/111:10:251
32590996237,9cyclictest26-21ksoftirqd/109:30:291
32583996223,34cyclictest2862-21sshd07:15:280
32583996212,24cyclictest0-21swapper/011:20:120
32590996137,8cyclictest26-21ksoftirqd/107:21:361
32590996115,41cyclictest0-21swapper/108:30:151
3258399614,18cyclictest12964-21apt-get10:45:140
32583996137,9cyclictest14-21ksoftirqd/007:25:110
32590996038,16cyclictest0-21swapper/107:25:201
32590996036,9cyclictest26-21ksoftirqd/108:58:431
32590996036,9cyclictest26-21ksoftirqd/108:36:161
32590996015,40cyclictest0-21swapper/111:15:271
32583996035,19cyclictest14-21ksoftirqd/008:45:210
32583996030,24cyclictest14-21ksoftirqd/011:00:260
3259099594,36cyclictest0-21swapper/112:26:031
32590995937,8cyclictest26-21ksoftirqd/109:46:211
32590995934,9cyclictest26-21ksoftirqd/112:07:221
32590995930,18cyclictest12698-21taskset12:15:141
32590995928,15cyclictest13783-21apt-get07:45:141
32590995914,40cyclictest0-21swapper/111:40:331
32590995914,40cyclictest0-21swapper/109:20:251
32590995914,40cyclictest0-21swapper/109:20:251
32590995914,16cyclictest0-21swapper/109:50:131
32590995913,40cyclictest26-21ksoftirqd/107:50:141
32583995936,17cyclictest14-21ksoftirqd/008:57:100
32583995934,19cyclictest14-21ksoftirqd/010:03:250
32583995927,26cyclictest14-21ksoftirqd/009:25:270
3259099587,42cyclictest2129-21apt-get10:15:131
32590995834,9cyclictest26-21ksoftirqd/108:25:111
32590995829,17cyclictest0-21swapper/110:10:131
32590995822,25cyclictest14704-21apt-get10:50:141
32590995813,11cyclictest13012-21taskset10:45:151
3258399586,47cyclictest0-21swapper/007:10:120
32590995732,10cyclictest26-21ksoftirqd/112:33:111
3259099573,19cyclictest14718-21cut12:20:181
32590995731,13cyclictest12017-21apt-get07:40:121
32590995730,14cyclictest7369-21apt-get10:30:131
32590995729,14cyclictest10091-21apt-get07:35:131
32590995728,15cyclictest8353-21apt-get07:30:141
32590995728,14cyclictest5631-21apt-get10:25:141
32590995724,22cyclictest25838-21apt-get11:20:111
32590995720,25cyclictest29313-21apt-get11:30:111
32590995712,40cyclictest0-21swapper/112:00:111
32583995736,16cyclictest14-21ksoftirqd/011:30:550
32583995736,16cyclictest14-21ksoftirqd/007:46:040
32583995734,18cyclictest14-21ksoftirqd/011:40:170
3258399572,50cyclictest5939-21unixbench_multi07:20:470
3259099565,36cyclictest0-21swapper/110:39:001
32590995633,9cyclictest26-21ksoftirqd/109:02:261
32590995629,13cyclictest11223-21apt-get10:40:231
32590995627,17cyclictest0-21swapper/107:15:261
32590995627,16cyclictest0-21swapper/108:45:131
32590995623,26cyclictest0-21swapper/108:40:111
32583995643,8cyclictest14-21ksoftirqd/009:40:470
32583995635,16cyclictest14-21ksoftirqd/009:19:370
32583995635,16cyclictest14-21ksoftirqd/007:33:110
3258399563,48cyclictest996-21diskstats08:40:200
32583995634,17cyclictest14-21ksoftirqd/008:25:540
32583995632,16cyclictest22335-21apt-get11:10:250
3259099558,11cyclictest26-21ksoftirqd/107:10:211
32590995539,11cyclictest0-21swapper/111:05:321
32590995539,11cyclictest0-21swapper/111:05:321
3259099553,21cyclictest719-21cron10:10:001
32590995528,16cyclictest0-21swapper/108:15:121
32590995528,14cyclictest31052-21apt-get11:35:121
32590995528,14cyclictest20196-21apt-get09:35:141
32590995519,23cyclictest5659-21apt-get11:55:131
32590995511,8cyclictest0-21swapper/109:05:321
32590995511,8cyclictest0-21swapper/109:05:321
32590995510,40cyclictest26-21ksoftirqd/109:40:201
32583995534,16cyclictest14-21ksoftirqd/010:55:450
32583995533,17cyclictest14-21ksoftirqd/008:20:160
32583995532,17cyclictest14-21ksoftirqd/007:56:470
3259099549,11cyclictest26-21ksoftirqd/111:25:361
32590995438,11cyclictest0-21swapper/109:55:351
3258399544,45cyclictest0-21swapper/009:08:080
3258399544,45cyclictest0-21swapper/009:08:080
32583995439,10cyclictest14-21ksoftirqd/010:30:130
3258399543,46cyclictest18588-21df_inode12:30:300
32583995433,16cyclictest14-21ksoftirqd/008:15:140
32583995433,15cyclictest0-21swapper/011:55:120
3259099534,44cyclictest0-21swapper/109:15:241
3259099534,15cyclictest16154-21kworker/1:011:00:081
32590995311,38cyclictest26-21ksoftirqd/107:56:371
32583995337,11cyclictest31265-21apt-get08:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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