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2026-04-18 - 02:31
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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 Fri Apr 17, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33734059910951,39cyclictest776-21dbus-daemon11:10:017
337340099990,0cyclictest0-21swapper/209:55:182
3373405999233,39cyclictest3401316-21acpi08:00:117
3373405997536,39cyclictest85550irq/34-eno1-TxRx-011:15:117
3373405997536,39cyclictest85550irq/34-eno1-TxRx-008:05:157
3373405997536,19cyclictest191rcu_preempt09:05:337
3373405997516,59cyclictest3465441-21awk09:55:197
3373405997437,18cyclictest362-21jbd2/sda2-809:15:177
3373405997437,18cyclictest362-21jbd2/sda2-809:15:177
3373405997436,19cyclictest85550irq/34-eno1-TxRx-009:40:157
3373405997335,19cyclictest3486404-21kworker/u32:1+events_unbound10:45:297
3373405997315,39cyclictest3521389-21chrt11:35:577
3373405997235,18cyclictest85550irq/34-eno1-TxRx-010:50:157
3373405997234,19cyclictest30750irq/60-ahci[0000:00:07.0]07:56:547
3373405997233,39cyclictest0-21swapper/710:42:217
3373405997212,59cyclictest3423797-21/usr/sbin/munin08:40:157
3373405997133,38cyclictest85550irq/34-eno1-TxRx-011:25:317
3373405997113,39cyclictest362-21jbd2/sda2-809:20:377
3373405997032,38cyclictest0-21swapper/712:30:337
3373405997032,38cyclictest0-21swapper/712:16:257
3373405997032,19cyclictest85550irq/34-eno1-TxRx-012:05:037
3373405997031,39cyclictest0-21swapper/707:38:177
3373405996931,38cyclictest0-21swapper/710:08:457
3373405996830,38cyclictest0-21swapper/707:41:037
3373405996830,19cyclictest85550irq/34-eno1-TxRx-011:55:077
3373405996829,39cyclictest0-21swapper/708:23:557
3373405996810,58cyclictest3459138-21/usr/sbin/munin09:45:117
3373405996729,38cyclictest0-21swapper/707:15:317
3373405996728,39cyclictest85550irq/34-eno1-TxRx-007:52:557
3373405996728,39cyclictest101550irq/39-eno2-TxRx-011:45:157
3373405996728,39cyclictest0-21swapper/712:24:437
337340599668,39cyclictest3439993-21awk09:10:137
3373405996628,19cyclictest85550irq/34-eno1-TxRx-012:35:117
3373405996626,39cyclictest0-21swapper/708:55:257
337340399668,39cyclictest70-21ksoftirqd/512:15:145
3373405996527,38cyclictest0-21swapper/711:31:157
3373405996142,19cyclictest85550irq/34-eno1-TxRx-012:00:157
3373405996123,38cyclictest776-21dbus-daemon10:35:157
3373405995819,39cyclictest871ktimers/708:45:217
3373405995819,39cyclictest3429347-21df08:50:117
337340599580,39cyclictest3379243-21/usr/sbin/munin07:20:117
3373405995739,0cyclictest0-21swapper/708:13:497
3373405995718,20cyclictest3334712-21kworker/u32:4+flush-8:007:45:097
3373405995638,18cyclictest85550irq/34-eno1-TxRx-012:25:237
3373405995618,19cyclictest3417505-21munin-run08:30:017
337340599560,37cyclictest3367788-21kworker/u32:2+events_unbound07:32:177
337340399560,37cyclictest0-21swapper/509:50:155
3373405995537,18cyclictest324-21ice-ptp-0000:f4:00.210:31:417
3373405995537,18cyclictest0-21swapper/712:10:117
3373405995536,19cyclictest85550irq/34-eno1-TxRx-011:50:237
3373405995536,19cyclictest85550irq/34-eno1-TxRx-010:55:197
3373405995536,19cyclictest0-21swapper/710:15:097
3373405995518,19cyclictest30750irq/60-ahci[0000:00:07.0]09:32:537
3373405995518,19cyclictest30750irq/60-ahci[0000:00:07.0]09:32:537
3373405995516,20cyclictest3500060-21kworker/u32:4+flush-8:011:03:337
3373403995534,21cyclictest70-21ksoftirqd/507:10:155
3373400995518,18cyclictest43-21ksoftirqd/210:50:162
3373405995436,18cyclictest873-21mta-sts-daemon08:37:237
3373405995436,18cyclictest871ktimers/708:18:377
3373405995436,0cyclictest0-21swapper/709:36:377
3373405995319,34cyclictest0-21swapper/710:12:457
3373405995319,15cyclictest0-21swapper/709:29:057
3373405995315,19cyclictest3468539-21ntpq10:00:177
3373405995314,39cyclictest0-21swapper/707:29:537
3373405995314,39cyclictest0-21swapper/707:10:377
3373405995314,38cyclictest3428842-21kworker/u32:1+events_unbound09:00:297
3373405995314,19cyclictest0-21swapper/708:34:177
3373401995314,39cyclictest0-21swapper/310:10:153
3373405995234,18cyclictest85550irq/34-eno1-TxRx-011:20:237
3373405995233,19cyclictest0-21swapper/710:26:057
3373405995233,19cyclictest0-21swapper/709:51:057
3373405995233,0cyclictest0-21swapper/711:43:297
3373404995214,38cyclictest0-21swapper/610:10:146
3373401995214,19cyclictest0-21swapper/312:15:143
3373399995214,19cyclictest0-21swapper/111:30:161
3373398995233,19cyclictest0-21swapper/009:00:150
3373405995132,19cyclictest0-21swapper/711:12:107
3373405995112,39cyclictest0-21swapper/710:20:377
3373403995012,19cyclictest0-21swapper/511:40:155
3373400995032,18cyclictest0-21swapper/210:20:152
3373400995031,19cyclictest0-21swapper/208:00:162
3373404994911,19cyclictest0-21swapper/608:25:166
3373399994911,19cyclictest0-21swapper/109:05:161
337340399489,20cyclictest0-21swapper/511:25:165
3373401994810,19cyclictest0-21swapper/309:35:153
3373401994810,19cyclictest0-21swapper/308:10:163
337340099489,19cyclictest0-21swapper/208:45:152
337339999478,20cyclictest0-21swapper/110:00:131
337340399468,19cyclictest0-21swapper/507:20:155
337340499435,19cyclictest0-21swapper/611:45:156
337340499434,20cyclictest0-21swapper/607:40:166
3373399994322,20cyclictest3375673-21kworker/5:107:20:481
337339999424,19cyclictest3533090-21kworker/1:212:15:091
3373399994222,19cyclictest3518769-21kworker/2:111:45:071
3373403994022,18cyclictest0-21swapper/507:45:135
337340199402,19cyclictest0-21swapper/311:20:153
337340199401,19cyclictest0-21swapper/307:25:173
337339999402,19cyclictest0-21swapper/112:10:141
337339999402,19cyclictest0-21swapper/111:20:151
337339999401,39cyclictest0-21swapper/108:26:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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