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2026-04-21 - 03:47
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack4slot3.osadl.org (updated Tue Apr 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18158215018,44sleep018159-21munin-node19:12:480
2480021030,4sleep024799-21sshd19:32:510
311929924,15sleep03347-21lldpd20:04:230
19784999921,69cyclictest8719-21munin-node23:42:480
1229229914,16sleep012293-21irqstats22:13:080
735529814,24sleep07382-21munin-node20:18:090
19784999814,74cyclictest4426-21seq20:08:250
19784999714,74cyclictest8250-21runrttasks23:39:560
36129615,16sleep0386-21latency_hist23:17:380
1377129614,16sleep013788-21grep23:57:590
19784999518,68cyclictest16715-21latency_hist00:07:390
19784999515,70cyclictest7348-21smartctl21:58:020
3215329414,16sleep032154-21users19:53:360
19784999414,70cyclictest11867-21aten_r4power_vo20:32:490
19784999414,40cyclictest21997-21fschecks_time00:22:580
1553429414,16sleep015537-21irqstats22:23:090
1236729415,16sleep012368-21irqstats23:53:070
19784999322,34cyclictest27041-21rt-features19:38:230
19784999315,69cyclictest10904-21open_inodes22:08:230
19784999314,70cyclictest3568-21runrttasks21:34:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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