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2026-06-08 - 09:43
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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 rackfslot7.osadl.org (updated Mon Jun 08, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262417499166164,1cyclictest0-21swapper/020:30:120
26241819910931,78cyclictest0-21swapper/720:40:177
2624175999212,79cyclictest0-21swapper/120:20:171
2624177998423,39cyclictest2631545-21ntpq19:20:213
2624177997512,40cyclictest1-21systemd20:15:003
2624177997214,39cyclictest2668863-21cut20:30:133
2624177996911,19cyclictest0-21swapper/323:40:313
2624177996628,38cyclictest0-21swapper/319:15:343
2624177996528,18cyclictest0-21swapper/322:20:473
2624177996120,39cyclictest776-21dbus-daemon21:45:003
2624181995820,18cyclictest876-21mta-sts-daemon23:45:167
2624177995819,19cyclictest871-21mta-sts-daemon23:11:133
2624177995819,19cyclictest0-21swapper/319:49:453
2624177995719,19cyclictest2717902-21munin-run22:00:013
2624177995719,18cyclictest5150ktimers/319:38:413
2624177995719,18cyclictest0-21swapper/300:36:413
2624177995718,19cyclictest2768696-21cat23:30:133
2624177995633,19cyclictest0-21swapper/321:48:013
2624177995617,19cyclictest1086-21runrttasks23:01:173
2624181995536,19cyclictest871ktimers/720:05:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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