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2025-12-05 - 21:58
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack3slot2.osadl.org (updated Fri Dec 05, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243327422920,2sleep02433275-21grep11:45:140
237468822860,3sleep02374689-21latency_hist08:30:010
243141522650,3chrt2431412-21cron11:40:010
244147522580,2sleep02441476-21grep12:10:150
242182222580,3sleep02421823-21mii-tool11:10:250
239939222470,2sleep02399393-21mailstats10:01:550
239682622460,3chrt2396828-21latency_hist09:55:090
238340222440,2sleep02383403-21sh09:14:370
240761722430,2sleep02407613-21sendmail_mailtr10:26:510
237681922390,4chrt2376817-21/usr/sbin/munin08:41:150
244728122330,3chrt2447282-21switchtime12:26:540
242680822310,3chrt2426809-21kernelversion11:25:340
235908699222189,21cyclictest84-21jbd2/mmcblk0p2-07:36:340
238617222010,2sleep02386173-21cat09:21:530
239052621960,3sleep02390527-21cat09:35:340
235908699195164,20cyclictest84-21jbd2/mmcblk0p2-11:05:050
235908699192165,17cyclictest2396477-21kworker/u2:012:00:080
235908699189158,20cyclictest2378692-21kworker/u2:109:00:030
243534721850,2sleep02435345-21ssh11:50:580
235908699183154,20cyclictest2364342-21kworker/u2:208:05:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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