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2026-09-05 - 15:15
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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 Sat Sep 05, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19467210920,40sleep00-21swapper/007:08:390
19467210920,40sleep00-21swapper/007:08:390
19780998050,16cyclictest0-21swapper/011:40:120
19780997954,13cyclictest14-21ksoftirqd/009:15:240
19780997846,18cyclictest14-21ksoftirqd/008:45:130
19780997844,20cyclictest0-21swapper/008:35:140
19780997747,18cyclictest30654-21diskmemload09:10:140
19780997543,23cyclictest14-21ksoftirqd/011:10:160
19783997342,15cyclictest26-21ksoftirqd/107:20:001
19783997243,10cyclictest503-21snmpd08:07:531
19780997251,12cyclictest14-21ksoftirqd/012:30:140
19780997244,21cyclictest14-21ksoftirqd/007:10:150
19780997244,21cyclictest14-21ksoftirqd/007:10:150
19780997244,19cyclictest14-21ksoftirqd/007:35:250
19780997244,18cyclictest14-21ksoftirqd/008:25:150
19783997145,10cyclictest11161-21telnet11:15:181
19783997141,14cyclictest26-21ksoftirqd/110:20:001
19780997141,18cyclictest0-21swapper/011:45:130
19783997025,22cyclictest26-21ksoftirqd/111:40:001
19783997024,22cyclictest26-21ksoftirqd/109:00:001
19783997024,22cyclictest26-21ksoftirqd/109:00:001
19780997046,14cyclictest14-21ksoftirqd/011:25:120
19780997041,16cyclictest14-21ksoftirqd/007:55:130
19780997040,20cyclictest14-21ksoftirqd/009:02:230
19780997040,17cyclictest0-21swapper/008:50:130
19780997040,17cyclictest0-21swapper/008:05:160
1978099702,14cyclictest14-21ksoftirqd/011:00:000
1803827026,32sleep10-21swapper/107:05:131
1803827026,32sleep10-21swapper/107:05:131
19783996947,16cyclictest26-21ksoftirqd/107:10:191
19783996947,16cyclictest26-21ksoftirqd/107:10:191
1978099699,14cyclictest14-21ksoftirqd/010:50:050
19780996941,16cyclictest14-21ksoftirqd/010:35:160
19780996918,22cyclictest457-21dbus-daemon08:20:000
19780996911,19cyclictest0-21swapper/007:30:140
19783996840,14cyclictest29028-21/usr/sbin/munin09:05:181
19783996836,11cyclictest26-21ksoftirqd/111:05:001
19783996824,22cyclictest26-21ksoftirqd/107:36:241
19783996819,11cyclictest26853-21turbostat10:30:001
19780996842,17cyclictest14-21ksoftirqd/012:00:140
19780996840,17cyclictest14-21ksoftirqd/008:40:240
19780996840,17cyclictest0-21swapper/010:05:130
19780996839,17cyclictest0-21swapper/011:00:100
19780996838,17cyclictest0-21swapper/012:20:170
19780996838,17cyclictest0-21swapper/010:15:260
19783996735,11cyclictest26-21ksoftirqd/111:25:001
19783996725,23cyclictest26-21ksoftirqd/107:30:001
19783996722,24cyclictest26-21ksoftirqd/107:35:011
19780996740,15cyclictest0-21swapper/008:55:120
19780996740,15cyclictest0-21swapper/008:55:120
19780996739,17cyclictest0-21swapper/011:05:130
19780996739,17cyclictest0-21swapper/009:35:140
19780996739,16cyclictest0-21swapper/011:20:250
19780996738,19cyclictest14-21ksoftirqd/010:10:150
19783996634,9cyclictest25309-21/usr/sbin/munin11:55:221
19783996625,21cyclictest26-21ksoftirqd/109:40:001
19783996622,24cyclictest26-21ksoftirqd/109:25:001
1978399662,17cyclictest3894-21kernelversion12:25:241
19783996619,19cyclictest5528-21latency_hist09:30:001
19780996640,16cyclictest0-21swapper/007:40:160
19780996639,15cyclictest0-21swapper/007:45:120
19780996638,17cyclictest0-21swapper/007:50:110
19780996636,17cyclictest0-21swapper/011:55:120
19783996536,10cyclictest2226-21/usr/sbin/munin10:50:381
19783996522,24cyclictest26-21ksoftirqd/107:55:011
19783996521,22cyclictest26-21ksoftirqd/111:45:001
19780996540,15cyclictest0-21swapper/012:25:120
19780996539,16cyclictest0-21swapper/010:20:120
19780996537,19cyclictest0-21swapper/010:25:120
19780996537,16cyclictest0-21swapper/009:55:160
19780996536,19cyclictest14-21ksoftirqd/008:10:130
19780996535,17cyclictest0-21swapper/011:30:120
1978099653,16cyclictest14-21ksoftirqd/009:25:010
19780996525,35cyclictest14486-21cron08:25:000
19783996430,12cyclictest26-21ksoftirqd/107:45:011
19783996423,20cyclictest26-21ksoftirqd/110:40:011
19783996421,22cyclictest26-21ksoftirqd/109:20:001
19780996439,15cyclictest0-21swapper/009:25:130
19780996438,15cyclictest0-21swapper/010:40:120
19783996343,13cyclictest507-21ntpd08:50:311
19783996337,9cyclictest26-21ksoftirqd/108:20:171
19783996324,20cyclictest26-21ksoftirqd/108:05:001
19783996322,21cyclictest26-21ksoftirqd/109:50:001
19783996322,20cyclictest26-21ksoftirqd/108:00:001
19783996320,21cyclictest26-21ksoftirqd/112:40:001
19780996336,16cyclictest0-21swapper/009:50:190
19780996335,17cyclictest0-21swapper/010:45:120
19780996331,18cyclictest0-21swapper/011:15:130
19783996233,9cyclictest23608-21telnet11:50:141
19783996228,9cyclictest27070-21/usr/sbin/munin12:00:331
19783996221,21cyclictest26-21ksoftirqd/108:45:011
19783996218,21cyclictest26-21ksoftirqd/108:40:011
1978099627,17cyclictest32341-21apt-get12:15:130
19780996236,16cyclictest0-21swapper/010:00:130
19780996235,18cyclictest0-21swapper/012:05:150
19780996234,16cyclictest0-21swapper/009:45:140
19780996234,16cyclictest0-21swapper/007:25:160
19780996232,19cyclictest0-21swapper/008:00:150
1978099622,14cyclictest14-21ksoftirqd/007:20:000
19783996139,9cyclictest26-21ksoftirqd/110:31:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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