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2024-04-14 - 23:08
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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 rackdslot3.osadl.org (updated Sun Apr 14, 2024 12:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1612321300,3sleep0111rcuc/012:20:000
82599111795,9phc2sys0-21swapper/307:05:473
2572821170,3sleep1951699cyclictest07:45:001
9515997612,13cyclictest10971-21/usr/sbin/munin08:20:160
89352765,11sleep10-21swapper/107:06:171
825591700,5ptp4l401ktimersoftd/307:10:003
951699674,7cyclictest25-21ksoftirqd/110:00:001
951599677,11cyclictest9278-21/usr/sbin/munin09:25:230
9518996617,19cyclictest2355-21gnome-shell08:49:593
9518996411,19cyclictest3029-21seq09:10:473
9518996411,19cyclictest3029-21seq09:10:473
951699645,11cyclictest25-21ksoftirqd/108:50:121
951699644,7cyclictest25-21ksoftirqd/112:00:001
9515996411,16cyclictest14522-21seq12:07:450
9515996411,12cyclictest29506-21seq10:06:030
951699634,7cyclictest25-21ksoftirqd/111:15:011
9516996328,5cyclictest25-21ksoftirqd/110:03:371
9518996212,10cyclictest5833-21df_inode08:10:123
9518996211,16cyclictest10427-21awk09:25:553
951699627,10cyclictest25-21ksoftirqd/110:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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