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2026-04-16 - 03:30
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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 Apr 16, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15018210729,25sleep10-21swapper/119:07:091
15478998447,24cyclictest14-21ksoftirqd/020:28:200
1405628229,41sleep00-21swapper/019:05:180
15478997645,15cyclictest14-21ksoftirqd/019:35:260
15488997533,38cyclictest26-21ksoftirqd/121:55:261
15478997244,16cyclictest14-21ksoftirqd/019:55:150
15478997242,16cyclictest14-21ksoftirqd/022:55:160
15478997142,24cyclictest14-21ksoftirqd/022:34:130
15478997130,15cyclictest14-21ksoftirqd/000:00:000
15488997024,42cyclictest26-21ksoftirqd/121:25:111
15478997041,16cyclictest14-21ksoftirqd/022:16:430
15478997024,19cyclictest503-21snmpd21:30:530
15478996947,16cyclictest14-21ksoftirqd/019:35:010
15478996837,18cyclictest503-21snmpd20:00:230
15478996837,18cyclictest503-21snmpd20:00:230
15478996829,15cyclictest14-21ksoftirqd/020:20:000
15478996827,36cyclictest24311-21aten2.4-expect21:05:160
15488996739,9cyclictest26-21ksoftirqd/123:54:451
15488996739,13cyclictest30697-21/usr/sbin/munin22:55:241
15478996733,28cyclictest14-21ksoftirqd/019:20:300
15478996634,26cyclictest14-21ksoftirqd/021:10:350
1547899658,14cyclictest0-21swapper/023:15:130
15478996538,15cyclictest14-21ksoftirqd/023:45:170
15478996534,25cyclictest14-21ksoftirqd/021:15:300
1547899648,14cyclictest14-21ksoftirqd/023:50:220
15478996435,8cyclictest14-21ksoftirqd/019:45:240
15478996424,15cyclictest14-21ksoftirqd/023:40:000
15478996423,16cyclictest457-21dbus-daemon22:50:000
15488996318,10cyclictest26-21ksoftirqd/120:29:071
15478996335,22cyclictest14-21ksoftirqd/020:40:120
15478996335,22cyclictest14-21ksoftirqd/020:40:120
15478996332,25cyclictest14-21ksoftirqd/022:00:190
15478996323,16cyclictest14-21ksoftirqd/021:40:010
15478996232,24cyclictest14-21ksoftirqd/022:50:290
15478996226,14cyclictest14-21ksoftirqd/000:40:000
15478996222,16cyclictest14-21ksoftirqd/022:40:000
15478996220,16cyclictest14-21ksoftirqd/019:15:130
225402610,8chrt0-21swapper/000:00:340
15488996115,11cyclictest26-21ksoftirqd/121:35:441
15478996148,8cyclictest14-21ksoftirqd/020:06:530
15478996129,27cyclictest14-21ksoftirqd/023:42:290
15478996128,29cyclictest14-21ksoftirqd/021:50:570
15478996123,12cyclictest453-21in:imuxsock19:40:120
15478996120,14cyclictest14-21ksoftirqd/000:35:000
15478996111,15cyclictest25109-21aten2.4-expect00:10:160
15488996032,14cyclictest0-21swapper/121:00:121
15488996032,14cyclictest0-21swapper/121:00:121
15488996030,17cyclictest0-21swapper/100:10:111
15478996037,17cyclictest14-21ksoftirqd/023:10:130
15478996037,17cyclictest14-21ksoftirqd/020:30:130
15478996037,17cyclictest14-21ksoftirqd/019:25:460
15478996035,19cyclictest14-21ksoftirqd/020:35:110
15478996022,15cyclictest14-21ksoftirqd/021:00:000
15478996022,14cyclictest14-21ksoftirqd/021:30:000
15488995935,9cyclictest26-21ksoftirqd/100:23:351
15488995934,11cyclictest26-21ksoftirqd/122:10:111
15488995934,10cyclictest26-21ksoftirqd/119:15:351
15488995932,19cyclictest0-21swapper/120:20:151
15488995924,29cyclictest457-21dbus-daemon19:30:001
15478995936,17cyclictest14-21ksoftirqd/019:50:140
15478995936,17cyclictest14-21ksoftirqd/000:15:290
15478995936,17cyclictest14-21ksoftirqd/000:15:290
15478995935,9cyclictest14-21ksoftirqd/022:10:170
15478995922,14cyclictest14-21ksoftirqd/021:25:010
15478995921,15cyclictest14-21ksoftirqd/023:35:010
15478995920,16cyclictest14-21ksoftirqd/021:45:130
15478995918,37cyclictest14-21ksoftirqd/000:08:280
15488995842,9cyclictest26-21ksoftirqd/119:50:101
15488995835,9cyclictest26-21ksoftirqd/100:18:271
15488995835,9cyclictest26-21ksoftirqd/100:18:271
15488995833,11cyclictest26-21ksoftirqd/100:35:121
15488995832,16cyclictest0-21swapper/123:55:131
15488995814,9cyclictest0-21swapper/123:45:201
15488995813,40cyclictest0-21swapper/100:05:141
15478995843,10cyclictest14-21ksoftirqd/023:20:180
15478995843,10cyclictest14-21ksoftirqd/022:05:280
15478995835,18cyclictest14-21ksoftirqd/019:10:150
15478995835,17cyclictest14-21ksoftirqd/023:05:030
15478995835,17cyclictest14-21ksoftirqd/020:50:320
15478995835,17cyclictest14-21ksoftirqd/020:45:300
15478995834,9cyclictest14-21ksoftirqd/022:20:340
15478995834,9cyclictest14-21ksoftirqd/021:55:180
15478995834,9cyclictest14-21ksoftirqd/021:00:130
15478995834,9cyclictest14-21ksoftirqd/021:00:130
15478995832,9cyclictest31037-21python300:25:320
1547899583,15cyclictest1605-21munin-run23:05:010
15478995827,27cyclictest14-21ksoftirqd/022:25:150
15478995821,15cyclictest14-21ksoftirqd/021:40:140
15488995743,9cyclictest0-21swapper/120:15:121
15488995737,10cyclictest26-21ksoftirqd/100:00:101
15488995733,11cyclictest26-21ksoftirqd/122:30:191
15488995718,31cyclictest0-21swapper/120:10:131
15488995713,39cyclictest0-21swapper/120:55:311
15488995712,11cyclictest0-21swapper/123:35:171
15478995734,8cyclictest14-21ksoftirqd/023:25:140
15478995734,18cyclictest14-21ksoftirqd/022:40:140
15478995734,17cyclictest14-21ksoftirqd/000:20:310
15478995733,18cyclictest14-21ksoftirqd/020:10:150
1548899566,45cyclictest0-21swapper/123:30:191
15488995635,8cyclictest26-21ksoftirqd/120:43:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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