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2026-07-05 - 07:16
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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 Sun Jul 05, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
757221300,5chrt7573-21sort21:40:391
16507211119,48sleep00-21swapper/019:09:140
2242521020,5chrt22426-21/usr/sbin/munin23:55:141
167289910156,26cyclictest26-21ksoftirqd/122:30:151
167289910156,25cyclictest26-21ksoftirqd/121:20:121
16728999955,23cyclictest26-21ksoftirqd/121:30:121
16721999565,15cyclictest0-21swapper/000:15:150
16721999062,15cyclictest14-21ksoftirqd/020:55:140
16721998959,16cyclictest14-21ksoftirqd/023:35:150
16721998957,20cyclictest14-21ksoftirqd/022:55:140
16721998763,12cyclictest14-21ksoftirqd/019:20:110
16728998647,21cyclictest26-21ksoftirqd/119:30:131
16721998653,19cyclictest14-21ksoftirqd/020:05:130
1633028623,10sleep10-21swapper/119:07:511
16721998453,18cyclictest14-21ksoftirqd/023:55:130
16728998349,19cyclictest26-21ksoftirqd/119:10:121
16721998354,19cyclictest14-21ksoftirqd/022:25:120
16721998154,18cyclictest14-21ksoftirqd/021:45:120
16721998154,18cyclictest14-21ksoftirqd/021:45:110
16721998153,18cyclictest14-21ksoftirqd/019:45:140
16721998151,17cyclictest0-21swapper/022:35:120
16721998151,17cyclictest0-21swapper/022:35:120
71252800,4sleep1251rcuc/120:10:271
50392800,5chrt0-21swapper/100:35:361
16721998051,19cyclictest14-21ksoftirqd/000:30:140
16721998051,18cyclictest14-21ksoftirqd/000:00:170
16721998048,21cyclictest14-21ksoftirqd/019:55:150
16728997942,24cyclictest26-21ksoftirqd/120:00:131
16721997951,16cyclictest14-21ksoftirqd/021:55:120
16721997862,10cyclictest14-21ksoftirqd/021:05:120
16721997862,10cyclictest14-21ksoftirqd/021:05:120
16721997852,16cyclictest14-21ksoftirqd/000:10:110
16721997850,19cyclictest14-21ksoftirqd/023:00:160
16721997849,18cyclictest14-21ksoftirqd/023:40:130
16721997741,20cyclictest14-21ksoftirqd/020:10:140
16721997650,18cyclictest14-21ksoftirqd/023:10:090
16721997245,18cyclictest14-21ksoftirqd/021:20:150
16721997133,32cyclictest14-21ksoftirqd/019:15:050
16721997042,15cyclictest0-21swapper/019:35:130
16721997036,29cyclictest14-21ksoftirqd/020:20:220
16721996943,18cyclictest14-21ksoftirqd/021:40:120
16721996737,21cyclictest14-21ksoftirqd/023:20:130
16721996735,19cyclictest0-21swapper/020:50:240
16721996640,16cyclictest14-21ksoftirqd/000:25:120
16721996635,26cyclictest503-21snmpd21:31:310
1672199656,14cyclictest18941-21apt-get23:45:120
1672199655,48cyclictest24650-21apt-get21:00:130
16721996539,16cyclictest0-21swapper/021:25:110
16721996535,24cyclictest14-21ksoftirqd/020:45:140
16721996535,22cyclictest14-21ksoftirqd/021:50:120
16721996534,18cyclictest0-21swapper/023:50:110
16721996533,20cyclictest14-21ksoftirqd/000:20:140
16721996531,22cyclictest14-21ksoftirqd/022:05:150
16721996521,37cyclictest11802-21aten2.4-expect20:25:150
77132640,11sleep1251rcuc/123:10:341
1672199646,17cyclictest17400-21apt-get22:10:110
1672199646,15cyclictest15253-21apt-get20:35:110
16721996437,17cyclictest0-21swapper/019:40:120
16721996437,15cyclictest4781-21apt-get21:35:120
16721996435,17cyclictest0-21swapper/022:15:140
16721996434,25cyclictest14-21ksoftirqd/020:00:120
16721996434,21cyclictest243-21systemd-journal21:15:000
16721996419,35cyclictest16860-21aten2.4-expect19:10:150
16728996316,10cyclictest0-21swapper/122:20:171
16728996316,10cyclictest0-21swapper/122:20:171
16721996336,21cyclictest14-21ksoftirqd/023:08:440
16721996335,21cyclictest14-21ksoftirqd/022:30:200
16721996334,23cyclictest14-21ksoftirqd/022:40:130
16721996311,37cyclictest0-21swapper/020:15:140
16728996214,35cyclictest0-21swapper/119:45:141
16721996235,16cyclictest0-21swapper/019:50:120
16721996221,35cyclictest13547-21aten2.4-expect20:30:170
16721996219,34cyclictest32059-21aten2.4-expect22:50:250
16728996125,31cyclictest0-21swapper/122:40:271
16728996113,42cyclictest0-21swapper/121:01:101
16721996133,21cyclictest14-21ksoftirqd/022:20:160
16721996133,21cyclictest14-21ksoftirqd/022:20:160
16721996129,25cyclictest14-21ksoftirqd/000:05:150
16721996118,37cyclictest4198-21aten2.4-expect00:35:170
16721996036,18cyclictest14-21ksoftirqd/019:30:180
16721996036,17cyclictest14-21ksoftirqd/022:46:010
16721996035,18cyclictest14-21ksoftirqd/019:25:020
1672199596,47cyclictest0-21swapper/020:40:400
16721995930,21cyclictest10003-21tr23:20:000
1672899583,48cyclictest28482-21apt-get21:10:131
1672899583,47cyclictest22858-21mktemp19:25:021
16721995835,17cyclictest14-21ksoftirqd/023:30:270
16721995816,35cyclictest12035-21aten2.4-expect23:25:170
16721995815,35cyclictest0-21swapper/021:15:140
89625711,16sleep126-21ksoftirqd/100:25:201
1672899572,13cyclictest151rcu_preempt23:30:171
16728995711,34cyclictest0-21swapper/100:30:131
1672899567,43cyclictest0-21swapper/119:50:301
1672899563,38cyclictest151rcu_preempt19:15:031
16728995624,27cyclictest0-21swapper/122:15:171
16721995617,28cyclictest14-21ksoftirqd/022:00:120
16728995539,10cyclictest26-21ksoftirqd/120:20:121
16728995538,10cyclictest26-21ksoftirqd/100:10:291
1672899549,39cyclictest0-21swapper/120:40:311
1672899547,34cyclictest0-21swapper/119:35:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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