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2026-05-03 - 16:28
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Sun May 03, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
332122750,14sleep13315-21cyclictest07:10:011
1383621000,7chrt13837-21aten2.4_r3power10:40:171
3324999341,32cyclictest8212-21/usr/sbin/munin11:55:360
3324998349,15cyclictest14-21ksoftirqd/008:29:200
3324998252,16cyclictest503-21snmpd12:39:410
3324997733,39cyclictest14-21ksoftirqd/011:47:350
3324997634,15cyclictest14-21ksoftirqd/007:20:010
294427616,51sleep00-21swapper/007:07:570
3324997442,27cyclictest21939-21telnet08:00:150
3324997442,27cyclictest21939-21telnet08:00:150
3324997134,31cyclictest14-21ksoftirqd/010:30:100
3324997029,16cyclictest14-21ksoftirqd/010:00:010
3328996930,15cyclictest26-21ksoftirqd/111:15:011
332499687,21cyclictest16638-21apt-get07:45:140
3324996836,26cyclictest14-21ksoftirqd/007:20:420
3324996830,15cyclictest14-21ksoftirqd/011:20:000
3324996828,36cyclictest14-21ksoftirqd/012:04:400
3324996828,36cyclictest14-21ksoftirqd/012:04:400
3328996646,16cyclictest26-21ksoftirqd/109:14:291
3328996641,9cyclictest26-21ksoftirqd/111:15:191
3324996627,34cyclictest14-21ksoftirqd/012:06:220
3324996627,16cyclictest14-21ksoftirqd/009:50:000
3324996625,16cyclictest14-21ksoftirqd/011:22:360
3328996548,11cyclictest0-21swapper/108:15:151
3328996528,24cyclictest26-21ksoftirqd/109:28:141
3324996519,13cyclictest14-21ksoftirqd/012:20:000
3328996422,37cyclictest26-21ksoftirqd/111:20:291
3328996419,41cyclictest26-21ksoftirqd/111:55:201
3324996431,28cyclictest14-21ksoftirqd/007:39:200
3324996430,16cyclictest14-21ksoftirqd/009:32:330
3324996429,14cyclictest14-21ksoftirqd/011:40:000
3324996428,14cyclictest14-21ksoftirqd/008:55:000
3328996343,8cyclictest26-21ksoftirqd/112:16:231
3324996334,25cyclictest14-21ksoftirqd/011:34:250
3324996326,14cyclictest14-21ksoftirqd/010:05:000
3324996325,15cyclictest14-21ksoftirqd/011:00:000
3324996323,16cyclictest14-21ksoftirqd/012:35:010
3328996237,9cyclictest26-21ksoftirqd/110:25:441
332499626,50cyclictest0-21swapper/009:10:110
3324996237,18cyclictest14-21ksoftirqd/010:23:450
3324996236,21cyclictest14-21ksoftirqd/009:05:170
3324996230,20cyclictest0-21swapper/009:40:130
3324996227,15cyclictest14-21ksoftirqd/009:00:000
3324996226,14cyclictest14-21ksoftirqd/010:20:010
3324996225,14cyclictest14-21ksoftirqd/012:15:010
3324996210,40cyclictest3540-21/usr/sbin/munin11:40:360
3328996140,9cyclictest26-21ksoftirqd/108:56:101
3328996137,9cyclictest26-21ksoftirqd/108:00:541
3328996137,9cyclictest26-21ksoftirqd/108:00:541
3328996130,9cyclictest26-21ksoftirqd/110:50:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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