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2024-07-16 - 08:29
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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 Mon Jul 15, 2024 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7403210211,53sleep07479-21unixbench_multi07:04:010
782829915,51sleep37858-21munin-run07:07:173
7990999543,45cyclictest0-21swapper/208:57:172
65802949,51sleep26601-21ls07:02:362
799099902,54cyclictest25204-21taskset07:55:222
7982999057,11cyclictest141rcu_preempt07:32:171
799099883,57cyclictest6917-21taskset09:50:502
799099883,57cyclictest6917-21taskset09:50:502
799099882,59cyclictest9394-21taskset07:11:002
7990998759,16cyclictest2137-21sh09:42:172
799099862,56cyclictest7998-21ssh11:56:162
799099842,55cyclictest10551-21ssh10:58:472
799099842,53cyclictest15536-21memory07:27:432
797399842,59cyclictest32344-21apt-get09:37:360
7973998262,13cyclictest16387-21unixbench_multi10:08:010
7990998139,35cyclictest1-21systemd09:25:012
7982998114,33cyclictest32344-21apt-get09:37:301
257022810,9sleep325686-21munin-run10:27:173
7990998060,13cyclictest30069-21sendmail11:37:162
799099803,50cyclictest17673-21ssh10:11:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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