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2026-03-22 - 07:36
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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 Sun Mar 22, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911810,5ptp4l401ktimersoftd/320:03:283
2323821790,5sleep31992299cyclictest00:25:313
1710921430,3sleep21991699cyclictest00:20:122
232782850,18sleep10-21swapper/120:10:191
106891790,1ptp4l401ktimersoftd/300:49:293
106891700,1ptp4l401ktimersoftd/323:35:143
30122680,6sleep13006-21fschecks_count00:05:261
118462650,4sleep31992299cyclictest01:20:273
196292645,10sleep00-21swapper/020:02:510
183632640,12sleep10-21swapper/120:00:251
271482600,5sleep01990599cyclictest23:24:370
106891580,1ptp4l401ktimersoftd/322:46:323
106891560,1ptp4l401ktimersoftd/301:04:173
7482550,5sleep31992299cyclictest01:09:313
196842550,2sleep20-21swapper/222:10:282
195942554,38sleep20-21swapper/220:02:252
75742540,4sleep341-21ksoftirqd/322:30:363
280912540,1sleep20-21swapper/201:04:082
1991699546,18cyclictest31545-21grep21:35:182
1991699545,13cyclictest3165-21/usr/sbin/munin23:00:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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