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2026-03-13 - 11:17
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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 Mar 13, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
367421050,6sleep10-21swapper/119:30:191
2767529515,69sleep00-21swapper/019:06:110
159372930,6chrt15940-21tr21:35:171
135522930,5sleep10-21swapper/100:30:221
2725727529,34sleep10-21swapper/119:05:261
28225997451,9cyclictest26-21ksoftirqd/122:50:251
28225997131,11cyclictest26-21ksoftirqd/100:15:321
28225996835,17cyclictest26-21ksoftirqd/122:20:121
28225996830,31cyclictest26-21ksoftirqd/121:30:211
28221996743,16cyclictest14-21ksoftirqd/023:55:130
28225996535,16cyclictest26-21ksoftirqd/120:05:131
2822199656,51cyclictest17496-21apt-get21:40:120
28225996436,15cyclictest0-21swapper/121:20:131
28225996435,16cyclictest0-21swapper/120:50:151
28225996432,26cyclictest26-21ksoftirqd/123:15:191
28225996429,30cyclictest26-21ksoftirqd/123:20:361
28225996335,20cyclictest26-21ksoftirqd/123:40:111
28221996339,19cyclictest14-21ksoftirqd/021:30:170
28221996314,44cyclictest28029-21aten2.4-expect22:10:140
28221996310,11cyclictest0-21swapper/020:00:110
28225996233,18cyclictest26-21ksoftirqd/120:20:151
28225996132,17cyclictest26-21ksoftirqd/121:05:121
2822599609,47cyclictest36-21kcompactd022:00:131
28221996019,36cyclictest11267-21tr19:50:180
28225995945,9cyclictest26-21ksoftirqd/121:40:341
28225995932,15cyclictest0-21swapper/119:40:231
28225995932,15cyclictest0-21swapper/119:40:221
28221995934,19cyclictest14-21ksoftirqd/021:35:200
2822199592,38cyclictest795-21threads19:20:330
28225995840,11cyclictest26-21ksoftirqd/119:55:201
28225995836,18cyclictest26-21ksoftirqd/122:48:031
28225995831,22cyclictest26-21ksoftirqd/123:00:011
28225995829,23cyclictest448-21dbus-daemon23:54:591
28225995829,19cyclictest1961-21date00:00:031
2822199589,42cyclictest0-21swapper/000:30:130
2822199587,13cyclictest0-21swapper/019:35:120
28221995834,18cyclictest14-21ksoftirqd/020:25:180
2822199582,21cyclictest5406-21awk00:10:000
28221995818,16cyclictest31579-21aten2.4_r3power22:20:160
28225995742,9cyclictest26-21ksoftirqd/120:40:181
28225995742,9cyclictest26-21ksoftirqd/119:35:231
28225995741,9cyclictest26-21ksoftirqd/121:10:241
28225995741,8cyclictest26-21ksoftirqd/100:35:261
28225995741,10cyclictest26-21ksoftirqd/122:10:191
28225995731,21cyclictest27819-21cron22:09:591
28225995728,21cyclictest1-21systemd20:40:011
28225995721,31cyclictest26-21ksoftirqd/120:30:231
2822199578,13cyclictest0-21swapper/023:15:130
28221995739,10cyclictest14-21ksoftirqd/020:35:240
28221995735,17cyclictest14-21ksoftirqd/019:40:270
28221995735,17cyclictest14-21ksoftirqd/019:40:260
28221995725,12cyclictest14-21ksoftirqd/021:10:210
28221995724,28cyclictest14-21ksoftirqd/023:40:100
2822199572,38cyclictest503-21sshd19:33:180
28225995642,9cyclictest26-21ksoftirqd/123:10:291
28225995642,9cyclictest26-21ksoftirqd/122:25:311
28225995642,9cyclictest26-21ksoftirqd/122:15:301
28225995642,9cyclictest26-21ksoftirqd/100:00:301
28225995641,9cyclictest26-21ksoftirqd/123:05:261
28225995641,9cyclictest26-21ksoftirqd/121:55:211
28225995641,8cyclictest26-21ksoftirqd/100:25:291
28225995641,7cyclictest26-21ksoftirqd/121:00:321
28225995641,10cyclictest26-21ksoftirqd/121:25:321
28225995640,9cyclictest26-21ksoftirqd/123:35:241
28225995640,9cyclictest26-21ksoftirqd/123:35:231
28225995640,9cyclictest26-21ksoftirqd/122:30:411
28225995640,9cyclictest26-21ksoftirqd/120:25:191
28225995640,9cyclictest26-21ksoftirqd/120:10:291
28225995640,9cyclictest26-21ksoftirqd/100:05:221
28225995639,8cyclictest26-21ksoftirqd/122:35:181
28225995639,8cyclictest26-21ksoftirqd/119:45:401
28225995639,8cyclictest26-21ksoftirqd/119:15:051
28225995639,10cyclictest26-21ksoftirqd/123:00:291
28225995638,11cyclictest26-21ksoftirqd/120:45:201
2822199565,33cyclictest0-21swapper/023:23:050
2822199565,10cyclictest0-21swapper/022:58:390
28221995640,11cyclictest3420-21/usr/sbin/munin21:00:440
28221995635,16cyclictest11809-21if_enp2s000:25:250
2822199563,47cyclictest6192-21unixbench-2d21:05:370
28221995633,18cyclictest14-21ksoftirqd/023:35:160
28221995633,18cyclictest14-21ksoftirqd/023:35:150
2822199562,48cyclictest548-21runrttasks22:54:460
28221995617,33cyclictest0-21swapper/020:20:340
28225995541,8cyclictest26-21ksoftirqd/123:25:261
28225995540,9cyclictest26-21ksoftirqd/123:45:211
28225995540,9cyclictest26-21ksoftirqd/123:30:251
28225995540,9cyclictest26-21ksoftirqd/121:50:381
28225995540,9cyclictest26-21ksoftirqd/121:15:291
28225995540,9cyclictest26-21ksoftirqd/120:15:111
28225995540,9cyclictest26-21ksoftirqd/119:50:201
28225995540,9cyclictest26-21ksoftirqd/119:10:191
28225995540,8cyclictest26-21ksoftirqd/119:20:191
28225995539,9cyclictest26-21ksoftirqd/122:40:231
28225995539,8cyclictest26-21ksoftirqd/100:10:161
28225995538,10cyclictest26-21ksoftirqd/119:25:211
28225995534,17cyclictest26-21ksoftirqd/120:55:181
28225995534,17cyclictest26-21ksoftirqd/120:55:171
28225995524,18cyclictest0-21swapper/120:00:121
28225995514,34cyclictest0-21swapper/121:45:131
28225995514,34cyclictest0-21swapper/121:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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