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2026-09-02 - 08:53
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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 Wed Sep 02, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31881991637,86cyclictest0-21swapper/023:35:130
318859910876,19cyclictest26-21ksoftirqd/121:25:121
318859910775,17cyclictest26-21ksoftirqd/120:25:161
318859910576,19cyclictest26-21ksoftirqd/119:20:121
318859910374,18cyclictest26-21ksoftirqd/121:55:141
318859910270,20cyclictest26-21ksoftirqd/121:30:141
318859910270,20cyclictest26-21ksoftirqd/121:30:141
31404210135,19sleep10-21swapper/119:06:501
318859910073,17cyclictest26-21ksoftirqd/121:40:221
318859910071,19cyclictest26-21ksoftirqd/122:30:261
31316210027,26sleep00-21swapper/019:05:540
1020721000,6chrt10206-21sed21:10:011
31885999767,20cyclictest26-21ksoftirqd/120:00:121
31885999667,19cyclictest26-21ksoftirqd/123:45:151
31885999665,21cyclictest26-21ksoftirqd/120:40:161
31885999464,20cyclictest26-21ksoftirqd/123:15:151
31885999356,24cyclictest26-21ksoftirqd/119:15:151
31885999259,22cyclictest26-21ksoftirqd/121:35:231
31885999158,21cyclictest26-21ksoftirqd/120:35:131
31885998953,21cyclictest26-21ksoftirqd/121:10:141
31885998857,20cyclictest26-21ksoftirqd/100:25:141
31881998710,22cyclictest0-21swapper/020:40:120
31885998650,23cyclictest26-21ksoftirqd/100:30:161
3188199867,24cyclictest0-21swapper/000:30:130
31885998552,21cyclictest26-21ksoftirqd/123:20:131
31885998356,17cyclictest26-21ksoftirqd/123:05:121
31885998227,46cyclictest0-21swapper/122:15:261
31885998147,22cyclictest26-21ksoftirqd/121:00:151
31885998143,25cyclictest26-21ksoftirqd/100:20:131
31885998050,19cyclictest26-21ksoftirqd/119:30:131
31885998049,19cyclictest26-21ksoftirqd/120:20:141
31885998044,23cyclictest26-21ksoftirqd/120:05:131
31885998014,52cyclictest0-21swapper/120:45:161
31881998046,18cyclictest14-21ksoftirqd/000:37:220
3188599797,55cyclictest507-21ntpd19:45:141
31885997923,25cyclictest6813-21runrttasks22:25:391
31885997912,53cyclictest0-21swapper/120:55:151
31885997846,20cyclictest26-21ksoftirqd/122:50:141
31885997815,14cyclictest6143-21python319:25:331
3188599777,54cyclictest503-21snmpd23:40:141
31885997747,18cyclictest26-21ksoftirqd/121:20:121
31885997747,18cyclictest26-21ksoftirqd/121:20:121
31885997740,26cyclictest26-21ksoftirqd/120:30:251
31885997718,30cyclictest30201-21python323:30:341
3188199777,50cyclictest0-21swapper/021:30:130
3188199777,50cyclictest0-21swapper/021:30:130
31885997623,26cyclictest562-21runrttasks23:55:351
31885997616,49cyclictest0-21swapper/100:15:131
3188199767,55cyclictest0-21swapper/022:15:270
3188199767,21cyclictest0-21swapper/020:50:220
31881997652,10cyclictest14-21ksoftirqd/022:25:200
31881997610,20cyclictest0-21swapper/023:00:230
31885997513,36cyclictest32084-21latency_hist22:10:021
31885997422,26cyclictest10071-21sshd22:35:261
31885997418,45cyclictest0-21swapper/122:00:141
31885997417,46cyclictest0-21swapper/119:10:161
31885997416,48cyclictest0-21swapper/123:10:131
3188199748,49cyclictest0-21swapper/023:10:150
3188199747,52cyclictest0-21swapper/019:10:140
31881997431,22cyclictest14-21ksoftirqd/021:45:130
3188599736,53cyclictest507-21ntpd21:15:161
31885997337,25cyclictest26-21ksoftirqd/120:10:151
31885997327,20cyclictest562-21runrttasks20:50:411
31885997323,26cyclictest11575-21runrttasks22:40:181
31885997319,26cyclictest18358-21awk23:00:001
31885997316,47cyclictest0-21swapper/100:00:141
31885997316,47cyclictest0-21swapper/100:00:141
31885997316,46cyclictest0-21swapper/123:35:131
31885997316,46cyclictest0-21swapper/100:10:251
3188199737,47cyclictest0-21swapper/023:40:120
3188199737,21cyclictest0-21swapper/020:10:130
31885997224,20cyclictest8783-21taskset19:35:141
31885997224,20cyclictest503-21snmpd23:00:301
31885997222,25cyclictest14069-21runrttasks19:50:141
31885997217,45cyclictest0-21swapper/122:20:141
31885997217,45cyclictest0-21swapper/122:20:141
31885997215,47cyclictest0-21swapper/123:25:141
31885997215,47cyclictest0-21swapper/122:45:171
31885997215,46cyclictest0-21swapper/100:05:231
31885997123,20cyclictest23197-21taskset21:45:141
31885997122,24cyclictest562-21runrttasks19:55:171
31885997116,47cyclictest0-21swapper/123:50:131
31885997116,47cyclictest0-21swapper/123:50:131
31885997116,46cyclictest0-21swapper/122:10:261
31885997115,45cyclictest0-21swapper/121:50:121
3188199717,48cyclictest0-21swapper/021:10:120
31885997022,20cyclictest10927-21runrttasks19:40:191
31885997016,45cyclictest0-21swapper/100:35:141
31885996919,20cyclictest0-21swapper/120:15:211
31881996846,9cyclictest14-21ksoftirqd/023:58:110
3188199675,53cyclictest1797-21apt-get19:15:130
31881996729,24cyclictest0-21swapper/023:45:140
31881996725,26cyclictest14-21ksoftirqd/022:55:000
31881996720,32cyclictest14-21ksoftirqd/021:55:130
3188199668,50cyclictest5022-21apt-get20:55:140
3188199666,47cyclictest0-21swapper/020:20:160
31881996643,9cyclictest14-21ksoftirqd/023:24:210
31881996623,26cyclictest0-21swapper/020:30:240
31881996617,14cyclictest14-21ksoftirqd/022:40:050
31881996552,8cyclictest14-21ksoftirqd/022:10:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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