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2026-01-12 - 14:15
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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 Mon Jan 12, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2143821580,4sleep31556699cyclictest22:44:293
1068911010,4ptp4l401ktimersoftd/319:24:423
106891750,9ptp4l401ktimersoftd/320:32:213
106891730,1ptp4l401ktimersoftd/323:36:223
15552996659,4cyclictest25-21ksoftirqd/119:42:031
319022650,2sleep00-21swapper/022:55:380
319022650,2sleep00-21swapper/022:55:380
193272640,3sleep219331-21unixbench_multi20:37:222
83462630,5sleep21555999cyclictest20:17:062
1555999621,28cyclictest7351-21/usr/sbin/munin23:37:212
106891620,1ptp4l401ktimersoftd/322:10:593
243992600,2sleep30-21swapper/323:53:233
106891590,1ptp4l401ktimersoftd/322:01:153
327672580,3sleep0101ktimersoftd/000:36:190
327672580,3sleep0101ktimersoftd/000:36:190
28202580,1sleep00-21swapper/022:26:360
15552995647,4cyclictest25-21ksoftirqd/123:52:091
15552995646,5cyclictest25-21ksoftirqd/119:47:031
181822550,2sleep20-21swapper/223:13:592
1555999556,16cyclictest22481-21grep20:47:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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