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2024-07-27 - 03:18
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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 Jul 26, 2024 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187380021000,2sleep20-21swapper/211:40:192
16256452880,2sleep20-21swapper/209:10:252
2354291340,5ptp4l175990irq/127-enp1s0-TxRx-011:41:093
1476278993122,8cyclictest1736735-21basename10:20:001
1476278992819,8cyclictest1637007-21munin-run09:20:001
2354291270,5ptp4l175990irq/127-enp1s0-TxRx-011:03:573
2354291270,5ptp4l175990irq/127-enp1s0-TxRx-009:31:113
2354291270,4ptp4l175990irq/127-enp1s0-TxRx-010:39:013
2354291270,1ptp4l0-21swapper/311:46:523
2354291260,4ptp4l175990irq/127-enp1s0-TxRx-009:28:263
2354291260,13ptp4l175990irq/127-enp1s0-TxRx-010:10:113
2354291250,5ptp4l175990irq/127-enp1s0-TxRx-010:00:003
2354291250,5ptp4l175990irq/127-enp1s0-TxRx-010:00:003
2354291250,4ptp4l175990irq/127-enp1s0-TxRx-011:55:063
2354291250,4ptp4l175990irq/127-enp1s0-TxRx-009:17:493
2354291250,3ptp4l0-21swapper/310:10:003
1476278992522,2cyclictest1525775-21grep07:50:011
1476278992516,8cyclictest1584987-21cat08:40:001
1476278992515,9cyclictest1950433-21systemd12:40:011
2354291240,5ptp4l175990irq/127-enp1s0-TxRx-010:27:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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