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2024-12-11 - 17:11
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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 rackbslot7.osadl.org (updated Wed Dec 11, 2024 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
487829727,34sleep10-21swapper/107:03:441
543729314,46sleep25505-21cat07:04:022
235782930,4chrt23579-21ssh09:27:450
57742905,13sleep30-21swapper/307:05:013
6190998563,13cyclictest13864-21unixbench_singl11:13:541
619099836,34cyclictest13235-21diskmemload09:33:441
619999812,51cyclictest26950-21apt-get09:33:442
6199997952,9cyclictest21024-21ssh12:28:502
619099796,26cyclictest5286-21ssh10:58:311
6190997959,11cyclictest9976-21sh08:58:161
6190997947,8cyclictest25-21ksoftirqd/107:29:001
6199997835,14cyclictest141rcu_preempt11:03:492
6199997753,14cyclictest32707-21idleruntime-cro08:28:172
6199997736,18cyclictest141rcu_preempt09:43:442
6175997713,17cyclictest0-21swapper/010:58:370
6190997650,9cyclictest25-21ksoftirqd/110:43:321
6190997650,9cyclictest25-21ksoftirqd/110:43:321
6190997642,9cyclictest25-21ksoftirqd/109:38:421
6190997642,9cyclictest25-21ksoftirqd/109:38:421
6190997631,23cyclictest25-21ksoftirqd/112:10:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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