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2024-04-25 - 08:13
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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 20 highest latencies:
System rackeslot8.osadl.org (updated Thu Apr 25, 2024 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3366854994670,464cyclictest3625603-21kworker/u8:0+efi_rts_wq22:40:140
3366854994650,461cyclictest3562206-21kworker/u8:2+efi_rts_wq22:15:130
3366854994641,459cyclictest3646569-21kworker/u8:1+efi_rts_wq23:50:140
3366854994641,459cyclictest3646569-21kworker/u8:1+efi_rts_wq23:50:130
3366854994620,458cyclictest3512935-21kworker/u8:2+efi_rts_wq21:30:150
3366863994610,458cyclictest3646569-21kworker/u8:1+efi_rts_wq23:05:012
3366863994600,457cyclictest1209897-21kworker/u8:2+efi_rts_wq20:20:132
3366863994600,456cyclictest1644183-21kworker/u8:3+efi_rts_wq20:05:142
3366859994590,455cyclictest3562206-21kworker/u8:2+efi_rts_wq22:20:111
3366854994590,456cyclictest3745745-21kworker/u8:1+efi_rts_wq00:15:140
3366863994570,454cyclictest3604544-21kworker/u8:4+efi_rts_wq22:54:582
3366859994560,453cyclictest1644183-21kworker/u8:3+efi_rts_wq20:15:141
3366854994561,452cyclictest1209897-21kworker/u8:2+efi_rts_wq19:20:100
3366859994550,451cyclictest3533548-21kworker/u8:0+efi_rts_wq22:00:111
3366863994540,451cyclictest3498471-21kworker/u8:4+efi_rts_wq21:25:132
3366863994540,450cyclictest3646569-21kworker/u8:1+efi_rts_wq23:46:162
3366854994530,450cyclictest3604544-21kworker/u8:4+efi_rts_wq23:35:120
3366854994521,448cyclictest1644183-21kworker/u8:3+efi_rts_wq20:05:140
3366854994521,447cyclictest3367017-21kworker/u8:1+efi_rts_wq21:39:450
3366854994510,447cyclictest3731036-21kworker/u8:0+efi_rts_wq00:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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