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2025-11-18 - 12:24
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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 50 highest latencies:
System rack2slot7.osadl.org (updated Tue Nov 18, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
338433999409,9cyclictest0-21swapper/022:13:050
3384339994024,5cyclictest0-21swapper/020:53:030
338434199395,9cyclictest171rcu_preempt22:11:322
338433999393,35cyclictest3384338-21cyclictest00:05:550
3384339993923,3cyclictest0-21swapper/023:37:220
3384339993814,8cyclictest171rcu_preempt21:34:330
3384339993633,2cyclictest3455555-21ntpq21:48:030
338433999352,5cyclictest3533738-21grep23:12:580
3384339993518,3cyclictest11050irq/107-eth%d22:33:080
3384339993432,1cyclictest0-21swapper/023:46:590
3384340993315,12cyclictest111788-21systemd-journal22:12:241
3384339993223,6cyclictest3600466-21sendmail-msp00:26:350
338434199312,3cyclictest0-21swapper/200:06:002
338433999318,20cyclictest211irq_work/022:28:050
338433999311,28cyclictest0-21swapper/019:46:200
338434199303,6cyclictest0-21swapper/200:28:052
338433999303,17cyclictest0-21swapper/019:15:540
338433999293,3cyclictest3391828-21grep19:37:580
338433999293,12cyclictest3467518-21apt-key22:00:550
3384339992918,9cyclictest3401162-21sendmail-msp20:08:070
338433999290,29cyclictest0-21swapper/000:38:050
338433999281,27cyclictest0-21swapper/022:06:090
338434099278,12cyclictest619-21mta-sts-daemon23:17:591
338434099277,14cyclictest2243333-21munin-node20:15:571
338434099275,18cyclictest111788-21systemd-journal00:26:031
338433999278,15cyclictest619-21mta-sts-daemon21:15:570
338433999272,5cyclictest11050irq/107-eth%d22:50:560
338433999271,25cyclictest0-21swapper/023:08:030
3384339992712,3cyclictest0-21swapper/021:57:580
338433999270,26cyclictest69-21kswapd020:35:570
338434099267,16cyclictest1006-21mta-sts-daemon21:28:541
338434099263,16cyclictest3583639-21apt-key00:05:551
3384340992616,4cyclictest0-21swapper/100:22:561
3384339992619,6cyclictest191rcuc/021:29:470
3384339992615,3cyclictest1007-21mta-sts-daemon23:23:040
338433999260,24cyclictest3597800-21grep00:22:580
338434199257,2cyclictest171rcu_preempt19:28:352
338434199254,12cyclictest111788-21systemd-journal00:34:342
338434099254,11cyclictest3609572-21ssh00:36:111
338434099252,4cyclictest3535752-21ssh23:14:321
338433999258,5cyclictest0-21swapper/000:17:580
338433999253,20cyclictest0-21swapper/022:18:010
3384339992519,3cyclictest0-21swapper/000:34:340
338434199247,9cyclictest3514074-21latency_hist22:50:562
338434199244,15cyclictest992-21lldpd22:58:042
338434199243,13cyclictest11050irq/107-eth%d21:23:362
338434199242,16cyclictest3552220-21diskstats23:32:582
338434099243,13cyclictest3506907-21ntpq22:43:051
3384340992419,3cyclictest1006-21mta-sts-daemon00:03:021
3384340992414,8cyclictest3566956-21sh23:48:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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