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2026-03-21 - 12:25
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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 Mar 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911040,4ptp4l401ktimersoftd/320:03:363
223752660,5sleep0146999cyclictest01:16:370
11372614,10sleep20-21swapper/220:01:382
56482570,2sleep00-21swapper/022:48:220
1469995745,6cyclictest9-21ksoftirqd/000:54:510
106891570,1ptp4l401ktimersoftd/322:31:293
106891570,1ptp4l401ktimersoftd/320:19:383
106891570,1ptp4l401ktimersoftd/301:07:103
46122560,3sleep14603-21gpgv00:59:401
197062560,3sleep319707-21ptp4l23:34:583
1469995647,4cyclictest9-21ksoftirqd/020:44:450
1488995517,5cyclictest41-21ksoftirqd/323:44:573
106891550,1ptp4l401ktimersoftd/322:11:263
152342540,2sleep10-21swapper/123:30:101
1488995442,4cyclictest41-21ksoftirqd/323:04:493
1488995442,4cyclictest41-21ksoftirqd/323:04:493
1469995443,4cyclictest9-21ksoftirqd/020:54:460
1469995443,4cyclictest9-21ksoftirqd/001:29:510
1469995441,6cyclictest9-21ksoftirqd/020:49:470
1469995345,4cyclictest9-21ksoftirqd/000:34:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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