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2026-04-29 - 15:39
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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 Wed Apr 29, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
338021540,5sleep11169199cyclictest11:29:301
1995421300,5sleep21169999cyclictest10:41:212
1068911000,4ptp4l401ktimersoftd/308:22:383
106891670,1ptp4l401ktimersoftd/311:23:533
42302640,3sleep1233-21systemd-journal09:16:251
11691996126,16cyclictest25-21ksoftirqd/111:31:461
106891610,1ptp4l401ktimersoftd/311:26:553
9482580,2sleep30-21swapper/312:31:593
106891580,1ptp4l401ktimersoftd/312:17:363
117392570,2sleep20-21swapper/208:26:232
11699995720,5cyclictest33-21ksoftirqd/213:09:182
11699995527,10cyclictest33-21ksoftirqd/211:31:452
11691995539,8cyclictest25-21ksoftirqd/110:36:391
153632540,2sleep20-21swapper/209:36:452
106891540,1ptp4l401ktimersoftd/312:01:213
11699995331,3cyclictest33-21ksoftirqd/211:56:452
11691995223,5cyclictest25-21ksoftirqd/111:41:291
11691995223,4cyclictest25-21ksoftirqd/108:31:421
11691995121,7cyclictest25-21ksoftirqd/112:46:461
11691995120,8cyclictest25-21ksoftirqd/110:56:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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