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2026-07-15 - 13:13
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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 Jul 15, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2300328220,53sleep00-21swapper/019:06:180
23534998141,33cyclictest29066-21ntp_states23:55:300
2322228126,44sleep10-21swapper/119:08:411
23536997927,12cyclictest26-21ksoftirqd/121:40:111
23536997750,12cyclictest26-21ksoftirqd/120:35:131
23536997640,10cyclictest26-21ksoftirqd/122:20:291
23536997547,14cyclictest26-21ksoftirqd/123:40:101
23536997241,17cyclictest26-21ksoftirqd/121:15:151
23536996948,10cyclictest0-21swapper/123:50:121
23536996937,19cyclictest0-21swapper/122:00:151
23536996921,11cyclictest26-21ksoftirqd/119:15:111
2353499693,39cyclictest1964-21ntp_states00:10:300
23534996843,19cyclictest23526-21cyclictest20:20:180
23534996838,17cyclictest14-21ksoftirqd/019:15:220
23534996838,15cyclictest14-21ksoftirqd/023:25:190
23534996833,20cyclictest14-21ksoftirqd/019:30:350
2353499682,16cyclictest5088-21ntpq21:15:300
23536996739,17cyclictest26-21ksoftirqd/120:55:131
23536996738,18cyclictest26-21ksoftirqd/121:20:131
23536996738,18cyclictest26-21ksoftirqd/121:20:131
23536996737,18cyclictest0-21swapper/121:00:141
23534996737,23cyclictest14-21ksoftirqd/021:10:210
23534996735,11cyclictest14-21ksoftirqd/000:25:220
23534996643,16cyclictest509-21sshd19:45:300
23534996637,11cyclictest14-21ksoftirqd/022:00:130
23536996537,16cyclictest26-21ksoftirqd/123:15:131
23536996535,17cyclictest0-21swapper/120:00:111
23536996535,17cyclictest0-21swapper/120:00:111
2353699653,14cyclictest26-21ksoftirqd/120:10:001
2353499653,10cyclictest14148-21munin-run23:15:000
23534996523,20cyclictest14-21ksoftirqd/020:05:000
23534996523,20cyclictest14-21ksoftirqd/020:05:000
23536996437,17cyclictest0-21swapper/119:35:121
23536996437,16cyclictest26-21ksoftirqd/119:30:121
23536996435,18cyclictest26-21ksoftirqd/123:30:141
23536996435,18cyclictest26-21ksoftirqd/120:30:141
23536996434,18cyclictest0-21swapper/100:35:131
2353699643,11cyclictest17660-21munin-run23:25:011
23536996421,39cyclictest26-21ksoftirqd/100:25:171
2353699642,11cyclictest17029-21idleruntime-cro20:20:011
2353499647,18cyclictest28910-21apt-get22:25:130
23534996438,20cyclictest503-21snmpd19:10:410
23534996437,22cyclictest14-21ksoftirqd/022:10:140
23534996437,21cyclictest14-21ksoftirqd/020:25:210
23534996433,16cyclictest14-21ksoftirqd/019:40:000
23534996431,12cyclictest14-21ksoftirqd/023:41:470
23534996428,16cyclictest14-21ksoftirqd/021:57:510
23534996428,15cyclictest14-21ksoftirqd/022:30:270
23534996423,19cyclictest14-21ksoftirqd/022:25:000
2353699636,43cyclictest28340-21apt-get23:55:121
23536996336,16cyclictest26-21ksoftirqd/119:55:151
23536996336,15cyclictest0-21swapper/100:00:161
23536996333,17cyclictest0-21swapper/122:30:111
23536996327,11cyclictest26-21ksoftirqd/100:05:321
23534996340,18cyclictest14-21ksoftirqd/022:05:250
23534996338,8cyclictest14-21ksoftirqd/000:15:170
23534996337,14cyclictest14-21ksoftirqd/019:55:180
23534996332,12cyclictest14-21ksoftirqd/019:45:020
23534996332,12cyclictest14-21ksoftirqd/000:05:130
23534996332,11cyclictest14-21ksoftirqd/020:45:010
23534996331,11cyclictest14-21ksoftirqd/023:05:210
23534996330,16cyclictest14-21ksoftirqd/022:18:300
23534996320,25cyclictest457-21dbus-daemon19:55:000
2353699624,7cyclictest151rcu_preempt22:18:301
2353699623,11cyclictest27850-21munin-run20:50:001
2353699623,11cyclictest27850-21munin-run20:50:001
23536996225,10cyclictest26-21ksoftirqd/121:35:401
23534996239,18cyclictest14-21ksoftirqd/021:45:170
23534996238,9cyclictest14-21ksoftirqd/020:55:370
23534996233,23cyclictest14-21ksoftirqd/023:35:290
23534996232,16cyclictest14-21ksoftirqd/023:20:160
23534996230,11cyclictest14-21ksoftirqd/022:45:300
23534996229,11cyclictest14-21ksoftirqd/022:55:300
23534996227,15cyclictest14-21ksoftirqd/023:15:150
23534996220,14cyclictest243-21systemd-journal21:45:000
23534996219,30cyclictest4751-21cut00:20:160
23534996216,18cyclictest19677-21aten2.4_r3power23:30:170
2353699613,10cyclictest2807-21apt00:15:001
23536996130,17cyclictest0-21swapper/122:05:161
23536996128,19cyclictest0-21swapper/122:50:261
23536996118,39cyclictest26-21ksoftirqd/122:38:121
23536996118,39cyclictest26-21ksoftirqd/122:38:121
23536996116,40cyclictest26-21ksoftirqd/123:35:251
23534996131,11cyclictest14-21ksoftirqd/022:50:250
23534996130,11cyclictest14-21ksoftirqd/023:45:300
23534996129,11cyclictest14-21ksoftirqd/019:25:300
23534996128,11cyclictest14-21ksoftirqd/021:05:120
23534996127,12cyclictest14-21ksoftirqd/020:45:460
23534996127,12cyclictest14-21ksoftirqd/020:45:460
23534996123,14cyclictest14-21ksoftirqd/022:40:000
23534996123,14cyclictest14-21ksoftirqd/022:40:000
23534996122,19cyclictest14-21ksoftirqd/021:20:180
23534996122,19cyclictest14-21ksoftirqd/021:20:180
23534996114,22cyclictest14-21ksoftirqd/000:31:260
2353699603,20cyclictest4103-21grep00:15:381
2353699603,11cyclictest16463-21munin-run21:50:011
23536996029,22cyclictest26-21ksoftirqd/121:10:121
23536996028,18cyclictest0-21swapper/123:00:131
2353699602,10cyclictest457-21dbus-daemon19:30:001
23534996035,17cyclictest14-21ksoftirqd/000:00:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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