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2026-05-07 - 02:18
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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 Thu May 07, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175729911791,13cyclictest18965-21kworker/1:122:25:131
175679911110,78cyclictest0-21swapper/023:55:120
175729910475,19cyclictest26-21ksoftirqd/121:35:111
175729910175,17cyclictest26-21ksoftirqd/120:05:141
175729910073,18cyclictest26-21ksoftirqd/120:15:121
17572999868,19cyclictest26-21ksoftirqd/119:50:111
17572999865,18cyclictest26-21ksoftirqd/122:10:131
17572999766,20cyclictest26-21ksoftirqd/122:00:131
17572999764,22cyclictest26-21ksoftirqd/123:50:131
17572999763,20cyclictest26-21ksoftirqd/100:25:121
17572999567,18cyclictest26-21ksoftirqd/120:35:121
17572999363,20cyclictest26-21ksoftirqd/120:55:241
17572999362,20cyclictest26-21ksoftirqd/123:05:151
17572999263,20cyclictest26-21ksoftirqd/122:45:141
17572999162,19cyclictest26-21ksoftirqd/119:10:111
17572999060,17cyclictest26-21ksoftirqd/120:45:121
17572999058,21cyclictest26-21ksoftirqd/121:40:121
17572999058,21cyclictest26-21ksoftirqd/121:40:121
17572999057,22cyclictest26-21ksoftirqd/120:50:141
26082890,5sleep02609-21fw_packets00:30:220
17572998859,18cyclictest26-21ksoftirqd/100:15:121
17572998760,19cyclictest26-21ksoftirqd/119:35:131
17572998757,19cyclictest26-21ksoftirqd/100:30:131
17567998540,26cyclictest503-21snmpd19:54:480
17572998240,29cyclictest26-21ksoftirqd/122:05:121
17572998149,19cyclictest26-21ksoftirqd/120:20:131
1756799816,56cyclictest0-21swapper/023:15:130
17572998048,20cyclictest26-21ksoftirqd/122:30:151
17572998046,27cyclictest26-21ksoftirqd/100:35:111
17572997844,21cyclictest26-21ksoftirqd/122:20:121
17572997810,53cyclictest562-21runrttasks19:15:121
17572997746,20cyclictest26-21ksoftirqd/100:10:131
17572997738,25cyclictest26-21ksoftirqd/100:05:131
1722427718,50sleep00-21swapper/019:08:230
1722427718,50sleep00-21swapper/019:08:230
17572997643,20cyclictest26-21ksoftirqd/123:35:131
17567997642,21cyclictest14-21ksoftirqd/020:40:330
17567997642,21cyclictest14-21ksoftirqd/020:40:330
17572997512,51cyclictest0-21swapper/120:30:131
17572997510,50cyclictest28600-21diskmemload21:10:151
1756799757,58cyclictest8924-21apt-get21:45:110
1756799757,22cyclictest0-21swapper/023:30:120
1757299748,51cyclictest562-21runrttasks21:00:131
17572997338,21cyclictest26-21ksoftirqd/123:25:251
17567997333,26cyclictest14-21ksoftirqd/020:25:160
17572997239,23cyclictest26-21ksoftirqd/123:45:111
17572997239,22cyclictest0-21swapper/121:50:131
17572997238,20cyclictest0-21swapper/121:25:141
17572997212,47cyclictest0-21swapper/100:00:151
17572997112,46cyclictest26-21ksoftirqd/123:30:151
1756799717,57cyclictest1780-21apt-get19:55:130
1756799717,57cyclictest1780-21apt-get19:55:130
17567997148,16cyclictest12403-21apt-get21:55:140
17572997038,19cyclictest0-21swapper/123:40:111
17572997038,18cyclictest0-21swapper/121:20:251
17572997029,29cyclictest0-21swapper/120:40:111
17572997029,29cyclictest0-21swapper/120:40:111
17572997013,46cyclictest0-21swapper/119:20:131
1756799706,54cyclictest0-21swapper/019:20:100
1711627025,34sleep10-21swapper/119:07:131
1711627025,34sleep10-21swapper/119:07:131
17572996914,45cyclictest0-21swapper/121:30:111
17572996913,44cyclictest0-21swapper/123:20:111
17567996945,10cyclictest14-21ksoftirqd/022:25:200
17567996941,11cyclictest14-21ksoftirqd/022:30:160
17567996820,21cyclictest243-21systemd-journal21:20:000
1757299678,47cyclictest26-21ksoftirqd/122:55:151
17572996739,19cyclictest0-21swapper/122:40:111
17572996732,23cyclictest0-21swapper/123:10:111
17572996710,44cyclictest26-21ksoftirqd/123:00:141
1756799676,20cyclictest9815-21apt-get23:20:130
17567996727,9cyclictest14-21ksoftirqd/021:20:060
17572996631,22cyclictest0-21swapper/120:25:131
17572996626,28cyclictest0-21swapper/121:45:111
17567996616,21cyclictest151rcu_preempt22:35:290
17572996529,23cyclictest0-21swapper/120:00:111
17572996526,25cyclictest0-21swapper/122:15:131
17572996523,30cyclictest0-21swapper/122:50:141
17572996515,44cyclictest0-21swapper/121:15:381
17567996539,19cyclictest14-21ksoftirqd/000:07:560
17567996530,29cyclictest14-21ksoftirqd/019:35:310
17572996439,14cyclictest0-21swapper/119:25:161
17572996430,23cyclictest0-21swapper/123:15:151
17572996429,23cyclictest0-21swapper/119:45:251
17572996428,26cyclictest0-21swapper/100:20:151
17567996437,21cyclictest14-21ksoftirqd/021:40:460
17567996437,21cyclictest14-21ksoftirqd/021:40:460
17572996325,25cyclictest0-21swapper/119:40:131
17572996221,30cyclictest0-21swapper/122:35:131
17567996235,22cyclictest14-21ksoftirqd/000:15:260
17567996235,10cyclictest14-21ksoftirqd/023:25:280
17567996233,18cyclictest14-21ksoftirqd/021:05:210
17567996232,17cyclictest14-21ksoftirqd/022:58:590
17567996226,18cyclictest14-21ksoftirqd/022:45:150
17567996223,33cyclictest14-21ksoftirqd/022:19:010
17567996219,18cyclictest23492-21aten2.4-expect19:25:170
17572996128,22cyclictest0-21swapper/120:10:241
17572996123,28cyclictest0-21swapper/119:55:131
17572996123,28cyclictest0-21swapper/119:55:131
17572996121,28cyclictest0-21swapper/121:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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