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2026-08-14 - 05:15
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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 Fri Aug 14, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217429911381,19cyclictest14-21ksoftirqd/000:35:150
217429910574,19cyclictest14-21ksoftirqd/019:10:120
217429910375,16cyclictest14-21ksoftirqd/021:05:140
21423210219,31sleep10-21swapper/119:08:301
217429910169,18cyclictest14-21ksoftirqd/022:15:130
217429910166,22cyclictest14-21ksoftirqd/020:55:120
21742999968,19cyclictest14-21ksoftirqd/022:50:130
21742999968,17cyclictest14-21ksoftirqd/019:45:130
21742999968,17cyclictest14-21ksoftirqd/019:45:130
21742999967,21cyclictest14-21ksoftirqd/022:30:150
21742999967,21cyclictest14-21ksoftirqd/022:30:150
21742999869,18cyclictest14-21ksoftirqd/000:10:110
21742999764,20cyclictest14-21ksoftirqd/019:35:130
21742999564,21cyclictest14-21ksoftirqd/019:30:140
21742999465,19cyclictest14-21ksoftirqd/023:30:120
21742999465,19cyclictest14-21ksoftirqd/019:50:120
2174999928,62cyclictest0-21swapper/123:00:121
2134429218,63sleep00-21swapper/019:07:380
2174299909,51cyclictest14-21ksoftirqd/020:10:140
21742999060,20cyclictest14-21ksoftirqd/021:40:240
21742999058,20cyclictest14-21ksoftirqd/019:55:120
21742999055,21cyclictest14-21ksoftirqd/022:20:140
21742999024,42cyclictest562-21runrttasks22:37:240
21742999013,61cyclictest0-21swapper/020:00:150
21742999011,63cyclictest0-21swapper/022:45:160
21742998953,23cyclictest14-21ksoftirqd/023:10:130
21742998953,22cyclictest14-21ksoftirqd/021:55:140
21742998917,36cyclictest15459-21timerwakeupswit21:50:380
21742998814,63cyclictest0-21swapper/022:25:120
21742998553,22cyclictest14-21ksoftirqd/020:05:100
21742998452,19cyclictest14-21ksoftirqd/000:30:130
21742998250,22cyclictest14-21ksoftirqd/020:40:250
21742998250,20cyclictest14-21ksoftirqd/020:20:110
21742998249,20cyclictest14-21ksoftirqd/021:45:170
21742998248,21cyclictest14-21ksoftirqd/020:30:130
21742998230,41cyclictest0-21swapper/023:55:120
21742998150,20cyclictest14-21ksoftirqd/000:15:260
21742998150,19cyclictest14-21ksoftirqd/021:20:250
2174299808,56cyclictest5148-21chrt22:55:120
21742998027,25cyclictest503-21snmpd23:00:290
21742998020,36cyclictest6265-21taskset00:27:400
21742997945,22cyclictest14-21ksoftirqd/000:00:150
21742997939,28cyclictest14-21ksoftirqd/023:45:140
21742997929,26cyclictest562-21runrttasks20:50:250
21742997918,47cyclictest0-21swapper/021:30:140
21742997916,39cyclictest2975-21apt-key00:20:030
21742997826,25cyclictest562-21runrttasks23:50:220
21742997816,39cyclictest9205-21memory23:05:250
2174299778,51cyclictest0-21swapper/021:00:090
21742997727,25cyclictest1177-21ntp_states19:40:290
21742997726,22cyclictest3194-21apt-get21:20:000
21742997721,44cyclictest0-21swapper/023:20:120
21742997721,44cyclictest0-21swapper/023:20:120
21742997721,29cyclictest27584-21/usr/sbin/munin19:25:400
2174999767,50cyclictest0-21swapper/120:25:111
2174999767,50cyclictest0-21swapper/120:25:111
21742997625,20cyclictest1446-21turbostat21:15:010
21742997623,26cyclictest21475-21cat20:40:030
21742997623,20cyclictest0-21swapper/022:10:120
21742997621,44cyclictest0-21swapper/023:15:120
21742997619,31cyclictest13029-21sshd20:15:200
21742997531,17cyclictest772-21python322:40:340
21742997523,20cyclictest10523-21munin-run21:40:000
21742997519,45cyclictest0-21swapper/023:35:110
21742997518,45cyclictest0-21swapper/020:45:170
21742997518,44cyclictest0-21swapper/022:00:130
21742997517,45cyclictest0-21swapper/021:25:150
21742997512,51cyclictest0-21swapper/023:40:140
21742997512,51cyclictest0-21swapper/023:40:140
207322750,5chrt20735-21sed22:05:381
2174999747,51cyclictest0-21swapper/122:55:141
21742997424,25cyclictest25852-21runrttasks19:20:120
21742997419,45cyclictest0-21swapper/019:15:150
21742997419,44cyclictest0-21swapper/020:25:130
21742997419,44cyclictest0-21swapper/020:25:120
21749997349,10cyclictest26-21ksoftirqd/119:24:081
21742997320,42cyclictest0-21swapper/000:05:150
21742997315,36cyclictest20159-21if_err_enp2s022:05:250
21749997248,10cyclictest26-21ksoftirqd/119:36:241
21742997119,28cyclictest0-21swapper/023:29:570
21749996944,10cyclictest26-21ksoftirqd/120:34:431
21749996942,12cyclictest26-21ksoftirqd/123:28:431
21749996924,30cyclictest26-21ksoftirqd/122:40:151
21749996841,11cyclictest26-21ksoftirqd/120:15:581
21749996823,39cyclictest26-21ksoftirqd/123:05:241
21749996742,10cyclictest26-21ksoftirqd/119:51:471
21749996628,23cyclictest0-21swapper/100:15:231
21749996539,10cyclictest26-21ksoftirqd/123:51:461
21749996522,27cyclictest0-21swapper/122:45:131
21749996510,17cyclictest26-21ksoftirqd/121:50:141
2174999646,42cyclictest0-21swapper/123:55:101
21749996439,10cyclictest26-21ksoftirqd/120:13:411
21749996437,8cyclictest26-21ksoftirqd/123:22:171
21749996437,8cyclictest26-21ksoftirqd/123:22:171
21749996435,11cyclictest26-21ksoftirqd/120:59:491
21749996418,13cyclictest26-21ksoftirqd/121:30:011
21749996339,9cyclictest26-21ksoftirqd/122:32:371
21749996339,9cyclictest26-21ksoftirqd/122:32:371
21749996338,9cyclictest26-21ksoftirqd/119:27:131
21749996325,22cyclictest0-21swapper/100:25:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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