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2025-11-22 - 12:08
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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 Sat Nov 22, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
367013399473,41cyclictest3670096-21munin-run19:15:580
3670133994322,20cyclictest3823670-21ntp_kernel_err23:13:090
367013399422,25cyclictest0-21swapper/023:18:020
367013599415,13cyclictest3798242-21ssh22:46:032
367013399414,5cyclictest3680024-21sendmail-msp19:51:030
3670133994025,2cyclictest0-21swapper/022:53:070
3670133994025,2cyclictest0-21swapper/022:53:070
367013399392,32cyclictest3778409-21sendmail-msp22:26:040
3670133993821,5cyclictest3696115-21/usr/sbin/munin20:33:060
367013399370,21cyclictest0-21swapper/023:43:070
367013599366,22cyclictest967-21snmpd22:03:042
367013399367,24cyclictest3813918-21/usr/sbin/munin23:03:020
3670134993422,10cyclictest1007-21mta-sts-daemon23:28:101
3670133993419,8cyclictest3768520-21apt-get22:16:010
367013399340,34cyclictest0-21swapper/023:38:040
367013399332,20cyclictest0-21swapper/023:47:280
3670133993210,16cyclictest3799621-21/usr/sbin/munin22:48:010
367013399317,22cyclictest3735218-21latency_hist21:40:580
367013399306,23cyclictest3695365-21ntpq20:28:060
3670133992917,3cyclictest3808597-21/usr/sbin/munin22:57:580
367013399291,22cyclictest3751429-21grep21:58:020
367013399282,19cyclictest58-21kcompactd023:27:070
367013599276,17cyclictest619-21mta-sts-daemon20:26:032
367013599272,15cyclictest111788-21systemd-journal21:48:072
367013599272,12cyclictest11050irq/107-eth%d00:03:352
367013399276,20cyclictest3703337-21sort20:52:580
3670133992715,1cyclictest58-21kcompactd000:25:590
367013399271,24cyclictest0-21swapper/021:53:070
367013399271,22cyclictest0-21swapper/021:43:000
367013399270,26cyclictest0-21swapper/022:02:580
367013599263,17cyclictest3854612-21sendmail-msp23:52:332
367013399263,10cyclictest0-21swapper/022:23:000
3670133992621,3cyclictest3739906-21sendmail-msp21:48:070
3670133992617,2cyclictest3720695-21sendmail-msp21:33:020
3670133992614,7cyclictest0-21swapper/022:41:000
3670133992612,8cyclictest3854612-21sendmail-msp23:53:070
367013399261,1cyclictest3715918-21munin-run21:20:580
3670133992610,2cyclictest14-21ksoftirqd/000:31:060
367013699253,9cyclictest0-21swapper/323:18:023
3670135992521,3cyclictest3856932-21ntpq23:48:082
3670133992518,3cyclictest3768511-21cron22:15:570
3670133992514,3cyclictest0-21swapper/000:37:390
3670133992513,2cyclictest3722189-21/usr/sbin/munin21:28:030
367013399251,23cyclictest3760575-21aten_r2power_cu22:07:560
367013599245,15cyclictest3711098-21diskmemload23:26:062
367013499242,7cyclictest171rcu_preempt22:53:011
367013499242,7cyclictest171rcu_preempt22:53:011
3670133992414,9cyclictest3816571-21sendmail-msp23:08:050
3670133992412,5cyclictest0-21swapper/019:18:030
367013599235,11cyclictest3711098-21diskmemload23:55:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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