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2026-05-05 - 20:52
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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 10 highest latencies:
System rackbslot7.osadl.org (updated Tue May 05, 2026 12:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2109124120,12sleep221092-21sh07:01:472
2109124120,12sleep221092-21sh07:01:472
21228991184,37cyclictest17970-21ssh11:32:010
21228991145,36cyclictest2699-21fschecks_count09:12:100
21228991144,35cyclictest28355-21modprobe09:01:470
21228991103,27cyclictest32384-21sort11:01:570
21228991103,27cyclictest32384-21sort11:01:570
212289911032,10cyclictest0-21swapper/010:42:210
212289911031,11cyclictest0-21swapper/010:06:250
212289910947,54cyclictest0-21swapper/011:12:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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