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2024-11-22 - 16:34
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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
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Fri Nov 22, 2024 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
144027522020,2sleep30-21swapper/307:20:213
16941412810,2sleep01569181-21diskmemload10:25:170
2500991450,1ptp4l0-21swapper/312:01:233
2500991450,1ptp4l0-21swapper/310:31:523
2500991450,1ptp4l0-21swapper/308:36:483
2500991290,4ptp4l186990irq/129-enp1s0-TxRx-010:42:043
1420802992922,2cyclictest178850irq/121-eno110:20:201
2500991280,3ptp4l0-21swapper/308:20:143
2500991270,4ptp4l186990irq/129-enp1s0-TxRx-009:24:153
2500991270,2ptp4l0-21swapper/307:25:123
2500991260,5ptp4l186990irq/129-enp1s0-TxRx-011:47:303
2500991260,5ptp4l186990irq/129-enp1s0-TxRx-010:45:143
2500991260,4ptp4l186990irq/129-enp1s0-TxRx-011:40:003
1420801992617,5cyclictest1685188-21cstates10:20:140
2500991250,4ptp4l186990irq/129-enp1s0-TxRx-012:08:463
2500991250,4ptp4l186990irq/129-enp1s0-TxRx-011:27:453
2500991250,4ptp4l186990irq/129-enp1s0-TxRx-010:26:033
2500991250,4ptp4l186990irq/129-enp1s0-TxRx-010:11:443
2500991250,2ptp4l0-21swapper/310:02:123
1420802992522,2cyclictest1731-21in:imuxsock08:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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