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2026-06-11 - 11:19
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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 Jun 11, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1319421047,80sleep013290-21/usr/sbin/munin19:05:260
81921020,5chrt251rcuc/120:00:201
13700210027,25sleep10-21swapper/119:06:341
16682910,5chrt1667-21/usr/sbin/munin23:05:220
14235999168,11cyclictest14-21ksoftirqd/023:30:120
14235999167,11cyclictest14-21ksoftirqd/020:00:150
14242998852,21cyclictest26-21ksoftirqd/120:30:121
14235998662,12cyclictest14-21ksoftirqd/023:25:120
14235998562,11cyclictest14-21ksoftirqd/000:00:110
14235998458,15cyclictest14-21ksoftirqd/023:50:110
14235998456,17cyclictest14-21ksoftirqd/020:40:140
14235998352,18cyclictest14-21ksoftirqd/021:00:140
14235998251,26cyclictest14-21ksoftirqd/023:35:130
14235998251,26cyclictest14-21ksoftirqd/023:35:130
14235998156,14cyclictest14-21ksoftirqd/020:35:120
14235998151,19cyclictest0-21swapper/000:20:130
14235997953,18cyclictest14-21ksoftirqd/023:10:110
14235997951,18cyclictest14-21ksoftirqd/023:15:110
14235997951,17cyclictest14-21ksoftirqd/021:05:130
14235997750,17cyclictest14-21ksoftirqd/021:25:120
14235997651,16cyclictest14-21ksoftirqd/021:45:140
14235997550,16cyclictest14-21ksoftirqd/023:00:140
14235997344,17cyclictest14-21ksoftirqd/022:15:140
183262720,5sleep014-21ksoftirqd/022:20:240
14235997242,17cyclictest0-21swapper/022:00:150
14235997144,18cyclictest14-21ksoftirqd/021:35:130
14235997143,16cyclictest0-21swapper/020:15:110
14235997142,16cyclictest0-21swapper/022:05:130
14235997042,17cyclictest0-21swapper/019:45:130
14235996944,16cyclictest0-21swapper/019:15:150
14235996941,16cyclictest0-21swapper/000:30:120
14235996940,16cyclictest0-21swapper/022:47:390
14235996939,17cyclictest0-21swapper/022:50:120
14235996842,15cyclictest0-21swapper/021:40:120
14235996841,16cyclictest0-21swapper/021:15:250
14235996839,18cyclictest24806-21apt-get22:40:120
14242996733,29cyclictest26-21ksoftirqd/123:45:221
1423599678,48cyclictest0-21swapper/000:35:130
14235996739,18cyclictest0-21swapper/022:10:140
14235996624,37cyclictest2318-21aten2.4-expect20:05:150
14235996623,38cyclictest243-21systemd-journal23:21:590
14235996622,38cyclictest243-21systemd-journal22:31:490
14235996540,16cyclictest0-21swapper/023:40:130
14235996540,16cyclictest0-21swapper/000:05:140
14235996536,18cyclictest0-21swapper/000:25:130
14235996535,18cyclictest0-21swapper/023:45:140
14235996535,17cyclictest0-21swapper/021:50:110
14235996532,26cyclictest503-21snmpd19:31:140
14235996523,36cyclictest28954-21aten2.4-expect21:20:150
14235996522,35cyclictest18638-21aten2.4-expect19:20:140
14235996436,15cyclictest0-21swapper/020:30:130
14235996434,18cyclictest0-21swapper/021:10:140
14235996430,20cyclictest0-21swapper/019:10:210
14235996340,18cyclictest14-21ksoftirqd/020:25:010
14235996337,20cyclictest14-21ksoftirqd/019:40:150
14235996336,17cyclictest14-21ksoftirqd/022:35:110
14235996334,21cyclictest14-21ksoftirqd/019:25:120
2606326219,9sleep014-21ksoftirqd/000:15:160
1424299624,18cyclictest457-21dbus-daemon21:00:011
14235996225,31cyclictest243-21systemd-journal20:51:280
14242996137,8cyclictest26-21ksoftirqd/123:55:021
14242996132,18cyclictest26-21ksoftirqd/121:54:561
14235996139,12cyclictest0-21swapper/020:45:130
14235996117,35cyclictest30108-21aten2.4-expect22:55:150
14235996117,35cyclictest30108-21aten2.4-expect22:55:150
14242996038,8cyclictest26-21ksoftirqd/122:55:001
14242996037,8cyclictest26-21ksoftirqd/121:45:281
14242996013,42cyclictest0-21swapper/120:29:401
14235996043,11cyclictest503-21snmpd23:55:140
14235996027,21cyclictest14-21ksoftirqd/020:55:150
14235996016,35cyclictest9130-21aten2.4-expect21:55:260
1424299594,7cyclictest151rcu_preempt20:12:341
14242995938,7cyclictest26-21ksoftirqd/120:35:321
14242995935,9cyclictest26-21ksoftirqd/121:55:041
14242995934,11cyclictest16324-21munin-node22:10:251
14235995929,16cyclictest0-21swapper/019:35:110
14235995921,32cyclictest29589-21aten2.4-expect19:50:270
14235995916,35cyclictest9413-21aten2.4-expect20:25:160
14235995916,35cyclictest24411-21aten2.4-expect00:10:150
18832580,5sleep1251rcuc/100:37:021
14242995840,10cyclictest26-21ksoftirqd/123:05:011
14242995837,8cyclictest26-21ksoftirqd/119:26:121
14242995836,17cyclictest26-21ksoftirqd/119:30:351
14242995835,8cyclictest26-21ksoftirqd/121:20:171
14242995835,8cyclictest26-21ksoftirqd/120:00:011
14242995831,22cyclictest26-21ksoftirqd/100:05:011
14242995831,13cyclictest26-21ksoftirqd/123:30:001
14235995835,18cyclictest14-21ksoftirqd/021:30:160
1423599582,17cyclictest562-21runrttasks19:57:180
14235995818,33cyclictest19678-21aten2.4-expect22:25:160
1424299579,8cyclictest151rcu_preempt19:15:211
1424299578,43cyclictest0-21swapper/120:15:211
14242995736,7cyclictest26-21ksoftirqd/121:15:051
14242995736,7cyclictest26-21ksoftirqd/100:15:001
14242995735,8cyclictest26-21ksoftirqd/123:10:161
14242995734,9cyclictest26-21ksoftirqd/100:05:181
14242995734,8cyclictest26-21ksoftirqd/123:35:001
14242995734,8cyclictest26-21ksoftirqd/122:35:271
14242995734,8cyclictest26-21ksoftirqd/122:05:331
14242995733,17cyclictest26-21ksoftirqd/122:30:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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