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2023-02-07 - 18:21

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Latency plot of system in rack #a, slot #3
Note that at least one system runs a non-RT kernel (x scale expanded to 2000 µs).
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line:
Characteristics of the 10 highest latencies:
System (updated Sun Nov 07, 2021 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3108699251,0cyclictest23871-21irqstats10:59:394
3108699251,0cyclictest18626-21bash11:47:254
3108699251,0cyclictest10144-21sshd11:31:474
3108699250,0cyclictest24096-21manpath11:58:224
3108699241,0cyclictest7192-21sshd11:26:084
3108699240,0cyclictest21380-21bash11:52:574
3108699240,0cyclictest1457-21grep07:34:444
3110399235,0cyclictest24180-21ntp_kernel_pll_10:59:427
3108699231,0cyclictest13527-21sshd11:38:484
3108699231,0cyclictest0-21swapper/411:10:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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