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2026-06-05 - 03:21
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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 rackfslot7.osadl.org (updated Thu Jun 04, 2026 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
766658997314,39cyclictest0-21swapper/508:00:175
766658997314,39cyclictest0-21swapper/508:00:175
766657995332,20cyclictest795829-21switchtime08:00:244
766657995332,20cyclictest795829-21switchtime08:00:244
766660995214,19cyclictest0-21swapper/707:35:147
766659995214,19cyclictest0-21swapper/611:10:146
766660995113,19cyclictest0-21swapper/711:35:147
766660995113,19cyclictest0-21swapper/707:15:167
766656995112,39cyclictest0-21swapper/308:10:163
766653995113,19cyclictest0-21swapper/010:10:150
766658995012,19cyclictest0-21swapper/509:10:165
766660994911,19cyclictest0-21swapper/709:05:157
766656994911,38cyclictest0-21swapper/309:25:163
76665899479,19cyclictest0-21swapper/510:30:155
76665599479,38cyclictest0-21swapper/210:00:152
76666099467,39cyclictest0-21swapper/707:50:157
76666099467,39cyclictest0-21swapper/707:50:157
76666099457,38cyclictest0-21swapper/711:50:157
766659994527,18cyclictest0-21swapper/608:00:176
766659994527,18cyclictest0-21swapper/608:00:176
76665899456,39cyclictest0-21swapper/509:00:145
76665999446,38cyclictest0-21swapper/610:20:146
76666099435,19cyclictest0-21swapper/712:20:167
76665899435,19cyclictest0-21swapper/510:55:165
76665999424,19cyclictest0-21swapper/610:05:156
766657994222,19cyclictest0-21swapper/408:22:444
76665899414,18cyclictest0-21swapper/510:10:155
76665799412,39cyclictest0-21swapper/409:45:304
76665799412,39cyclictest0-21swapper/408:29:084
76665799412,39cyclictest0-21swapper/407:41:124
76665799412,20cyclictest3477433-21kworker/u32:2+events_unbound08:13:004
76665799412,19cyclictest191rcu_preempt11:41:564
76665799411,39cyclictest904936-21perl11:20:144
76665799410,39cyclictest887537-21kworker/u32:1+events_unbound11:05:124
76665799410,39cyclictest780628-21kworker/u32:0+events_unbound07:35:124
76665599412,39cyclictest0-21swapper/212:25:152
766657994021,19cyclictest0-21swapper/409:11:564
76665799401,39cyclictest0-21swapper/409:23:364
76665799401,39cyclictest0-21swapper/408:55:524
76665799401,39cyclictest0-21swapper/407:32:304
76665799400,40cyclictest849479-21/usr/sbin/munin09:40:184
76665799400,39cyclictest0-21swapper/412:00:044
76665799400,38cyclictest863375-21kworker/u32:5+flush-8:010:45:164
76665999391,19cyclictest766983-21kworker/u32:3+events_unbound10:30:026
76665899391,19cyclictest0-21swapper/510:35:155
766657993920,0cyclictest0-21swapper/407:10:164
76665799391,19cyclictest838224-21munin-run09:20:024
76665799390,39cyclictest236199-21snmpd08:45:004
76665799390,39cyclictest0-21swapper/412:05:444
76665799390,39cyclictest0-21swapper/409:02:404
76665799390,39cyclictest0-21swapper/408:30:164
76665799390,38cyclictest0-21swapper/410:31:144
76665799390,19cyclictest0-21swapper/408:38:244
76666099380,19cyclictest0-21swapper/708:20:167
76665999380,19cyclictest0-21swapper/611:45:156
766658993820,18cyclictest0-21swapper/512:05:165
76665899380,19cyclictest0-21swapper/509:20:155
766657993820,18cyclictest0-21swapper/408:15:204
766657993819,19cyclictest362-21jbd2/sda2-808:05:164
766657993819,19cyclictest362-21jbd2/sda2-808:05:164
766657993818,19cyclictest0-21swapper/412:20:204
766657993817,20cyclictest874864-21fschecks_count10:25:154
76665799380,38cyclictest0-21swapper/412:26:284
76665799380,38cyclictest0-21swapper/411:57:094
76665799380,38cyclictest0-21swapper/410:18:004
76665799380,38cyclictest0-21swapper/409:56:444
76665799380,38cyclictest0-21swapper/409:31:574
76665799380,38cyclictest0-21swapper/408:45:324
76665799380,38cyclictest0-21swapper/407:26:284
76665799380,37cyclictest0-21swapper/412:10:204
76665799380,37cyclictest0-21swapper/411:30:044
76665799380,19cyclictest0-21swapper/411:25:144
76665799380,18cyclictest900803-21kworker/u32:1+events_unbound11:17:484
76665799380,18cyclictest0-21swapper/410:24:564
76665799380,18cyclictest0-21swapper/409:36:544
76665699380,19cyclictest0-21swapper/308:00:173
76665699380,19cyclictest0-21swapper/308:00:173
76665499380,19cyclictest0-21swapper/108:10:151
766658993714,19cyclictest0-21swapper/507:25:175
766657993735,1cyclictest877-21mta-sts-daemon10:02:264
766657993718,19cyclictest923220-21cron11:55:004
766657993718,19cyclictest7746132sleep407:23:284
766657993718,19cyclictest61-21ksoftirqd/409:29:164
766657993718,19cyclictest0-21swapper/410:42:164
766657993718,0cyclictest0-21swapper/410:12:164
766657993717,19cyclictest831033-21ntpq09:05:184
76665799370,37cyclictest0-21swapper/410:55:164
76665699370,18cyclictest0-21swapper/308:05:163
76665699370,18cyclictest0-21swapper/308:05:163
766660993618,18cyclictest0-21swapper/710:45:167
766658993617,19cyclictest870-21mta-sts-daemon08:35:165
766657993619,17cyclictest0-21swapper/412:15:124
766657993617,19cyclictest877-21mta-sts-daemon09:54:464
76665799360,35cyclictest0-21swapper/412:37:284
76665799360,35cyclictest0-21swapper/412:30:084
76665799360,35cyclictest0-21swapper/407:50:344
76665799360,35cyclictest0-21swapper/407:50:344
76665799360,35cyclictest0-21swapper/407:47:244
76665799360,35cyclictest0-21swapper/407:15:164
76665799360,17cyclictest0-21swapper/410:50:124
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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