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2026-04-07 - 13:09
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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 Tue Apr 07, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18800210117,31sleep10-21swapper/119:09:231
18800210117,31sleep10-21swapper/119:09:231
90321000,6chrt906-21aten2.4_r3power00:20:161
203362980,6chrt20335-21sshd23:44:230
1860529316,27sleep00-21swapper/019:07:500
1860529316,27sleep00-21swapper/019:07:500
130212870,6sleep118979-21cyclictest21:55:001
14582800,7sleep0171rcuc/000:20:280
260732780,5chrt0-21swapper/122:30:161
1898599786,18cyclictest18777-21apt-get22:10:130
18985997826,46cyclictest457-21dbus-daemon00:35:000
1898599755,59cyclictest27763-21apt-get21:05:140
18992997338,25cyclictest26-21ksoftirqd/122:40:131
18985997253,10cyclictest14-21ksoftirqd/022:45:130
18985997238,24cyclictest8505-21apt-get20:10:130
18985997138,20cyclictest4467-21apt-get23:00:240
1899299706,29cyclictest26-21ksoftirqd/100:00:041
18992997038,11cyclictest26-21ksoftirqd/123:30:121
1898599707,53cyclictest2403-21apt-get22:55:130
1898599707,53cyclictest2403-21apt-get22:55:130
18985997044,15cyclictest14-21ksoftirqd/019:50:120
18985997016,48cyclictest0-21swapper/022:20:130
18985996943,17cyclictest6145-21apt-get21:35:100
18985996943,17cyclictest13748-21apt-get20:25:120
18985996939,17cyclictest0-21swapper/020:55:110
18985996935,25cyclictest23092-21apt-get19:20:130
18985996915,47cyclictest0-21swapper/021:30:110
1899299687,12cyclictest26-21ksoftirqd/100:35:201
1899299685,54cyclictest16985-21apt-get22:05:131
18985996839,15cyclictest11437-21apt-get21:50:130
18985996836,24cyclictest935-21apt-get21:20:150
18985996834,19cyclictest29556-21apt-get21:10:130
18985996825,37cyclictest457-21dbus-daemon23:40:000
18992996721,16cyclictest26-21ksoftirqd/120:40:011
18985996738,15cyclictest17228-21apt-get20:35:120
18985996730,27cyclictest26065-21apt-get22:30:150
18985996730,25cyclictest13482-21apt-get21:55:240
18992996624,13cyclictest26-21ksoftirqd/120:15:001
18992996613,10cyclictest251rcuc/121:00:011
1898599666,50cyclictest22523-21apt-get20:50:110
250272650,10chrt0-21swapper/023:55:350
250272650,10chrt0-21swapper/023:55:350
18985996541,18cyclictest14-21ksoftirqd/019:30:160
18985996538,15cyclictest503-21snmpd20:45:150
18985996535,20cyclictest26025-21apt-get21:00:140
18985996533,22cyclictest7963-21apt-get21:40:130
18985996529,26cyclictest15281-21apt-get23:30:150
18985996529,25cyclictest0-21swapper/000:00:130
18985996518,42cyclictest31541-21aten2.4-expect00:15:160
18992996421,15cyclictest26-21ksoftirqd/119:55:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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