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2026-04-18 - 11:56
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Sat Apr 18, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1029421620,3sleep11997999cyclictest22:12:251
3017121480,3sleep31999099cyclictest01:20:323
1068911030,4ptp4l401ktimersoftd/320:17:563
106891680,1ptp4l401ktimersoftd/322:23:213
106891670,1ptp4l401ktimersoftd/300:25:013
64732630,5sleep26477-21gltestperf22:05:192
27812610,2sleep00-21swapper/023:47:030
260042600,4sleep226009-21fschecks_time20:30:162
14172600,2sleep20-21swapper/200:51:042
106891580,1ptp4l401ktimersoftd/323:51:003
32382560,2sleep20-21swapper/223:47:492
277392550,5sleep2321ktimersoftd/200:45:262
277392550,5sleep2321ktimersoftd/200:45:262
216482550,3sleep01997099cyclictest22:28:130
177262554,10sleep20-21swapper/220:15:092
106891550,1ptp4l401ktimersoftd/300:47:173
106891550,1ptp4l401ktimersoftd/300:47:173
106891540,1ptp4l401ktimersoftd/301:42:083
23002530,2sleep10-21swapper/121:55:221
106891530,1ptp4l401ktimersoftd/322:33:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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