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2025-11-30 - 04:16
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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 100 highest latencies:
System rack2slot7.osadl.org (updated Sun Nov 30, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
377290999671,41cyclictest3920411-21ssh23:16:110
377290999542,14cyclictest3965568-40gzip00:07:570
3772910994014,19cyclictest111788-21systemd-journal22:33:111
377290999402,27cyclictest3917391-21ssh23:13:070
3772911993931,3cyclictest0-21swapper/200:07:532
377291099396,20cyclictest111788-21systemd-journal20:41:071
377290999367,20cyclictest0-21swapper/022:01:080
3772911993414,15cyclictest111788-21systemd-journal23:26:082
3772909993427,5cyclictest3772908-21cyclictest21:31:100
377291099335,12cyclictest3965969-21ssh00:07:361
3772910993315,16cyclictest3912401-21basename23:08:031
377290999339,8cyclictest259-21jbd2/mmcblk0p2-800:32:390
377290999336,19cyclictest3803623-21sendmail-msp20:48:110
377290999333,20cyclictest0-21swapper/023:31:210
3772909993326,5cyclictest0-21swapper/023:23:140
3772909993316,11cyclictest764-21rs:main0
3772910993228,2cyclictest0-21swapper/122:54:411
3772909993219,8cyclictest0-21swapper/020:26:060
377290999321,4cyclictest0-21swapper/000:03:110
377291199314,24cyclictest3879453-21latency_hist22:31:052
3772911993122,4cyclictest3826820-21apt-get21:31:102
377290999313,7cyclictest171rcu_preempt19:16:040
377290999311,2cyclictest0-21swapper/021:48:090
3772911993018,7cyclictest3782805-21sendmail-msp19:54:152
3772911993016,11cyclictest3981882-21sendmail-msp00:30:212
3772911993010,7cyclictest36-21ksoftirqd/221:43:092
377291099309,5cyclictest0-21swapper/100:31:101
377291099308,12cyclictest1005-21mta-sts-daemon20:30:351
377290999300,6cyclictest3852916-21cat22:01:050
377291099290,4cyclictest11050irq/107-eth%d22:01:081
377291099289,5cyclictest1007-21mta-sts-daemon23:49:431
377291099283,11cyclictest3820296-21ntpq21:23:091
377291099282,16cyclictest3857438-21sendmail-msp22:06:111
377290999287,16cyclictest111788-21systemd-journal00:12:310
377290999284,18cyclictest111788-21systemd-journal00:28:140
377290999283,2cyclictest0-21swapper/000:43:010
3772909992823,2cyclictest0-21swapper/023:51:050
377290999282,20cyclictest0-21swapper/021:18:080
377290999280,19cyclictest0-21swapper/021:53:190
377291199277,8cyclictest1007-21mta-sts-daemon23:58:082
3772910992712,12cyclictest762-21in:imuxsock20:32:451
377290999277,7cyclictest11050irq/107-eth%d21:36:440
377290999274,21cyclictest0-21swapper/023:49:110
377290999273,20cyclictest3913122-21ntpq23:08:100
3772909992724,2cyclictest3857698-21ssh22:06:110
377290999271,25cyclictest0-21swapper/023:58:070
3772910992622,3cyclictest3985594-21awk00:31:051
377291099261,12cyclictest3830632-21ssh21:34:331
377290999262,23cyclictest14-21ksoftirqd/022:36:050
377290999262,11cyclictest171rcu_preempt00:38:090
3772911992519,4cyclictest3840030-21sendmail-msp21:46:072
377291099254,12cyclictest3951324-21ssh23:51:051
377290999254,16cyclictest3796335-21sendmail-msp20:33:100
3772909992524,1cyclictest0-21swapper/023:43:040
377290999252,12cyclictest3819397-21ssh21:23:020
377291199242,16cyclictest111788-21systemd-journal00:13:112
3772911992410,9cyclictest0-21swapper/223:52:212
377291099243,20cyclictest3887280-21apt-get22:39:201
377290999243,13cyclictest3808391-21unixbench-2d20:58:140
377290999242,21cyclictest3877014-21ntpq22:28:110
3772909992420,1cyclictest0-21swapper/019:58:130
3772909992411,7cyclictest3824665-21ntpq21:28:090
377291199238,11cyclictest3799356-21ntpq20:33:102
377291199233,16cyclictest3910624-21sendmail-msp23:11:112
3772911992317,5cyclictest11050irq/107-eth%d23:43:102
3772911992310,10cyclictest3881586-21ntp_states22:33:112
377291099236,3cyclictest11050irq/107-eth%d22:58:071
377291099236,3cyclictest11050irq/107-eth%d22:58:071
377291099233,12cyclictest111788-21systemd-journal00:15:121
3772910992316,5cyclictest3808390-21unixbench-2d20:58:141
377290999237,9cyclictest3890260-21ssh22:43:070
377290999231,20cyclictest3892544-21sendmail-msp22:53:000
377290999231,19cyclictest3894867-21ntpq22:48:120
377291199226,12cyclictest619-21mta-sts-daemon00:03:112
3772911992213,7cyclictest1005-21mta-sts-daemon20:26:062
377291099224,13cyclictest3874858-21sendmail-msp22:26:111
377291099224,13cyclictest1005-21mta-sts-daemon20:36:551
377291099223,15cyclictest3857438-21sendmail-msp22:14:141
3772910992217,4cyclictest3929328-21ssh23:26:131
377290999225,15cyclictest3806254-21/usr/sbin/munin20:53:090
3772909992218,3cyclictest0-21swapper/019:43:060
377290999221,15cyclictest3979596-21missed_timers00:23:070
377290999221,11cyclictest0-21swapper/022:40:080
377291199216,10cyclictest111788-21systemd-journal23:07:542
377291199212,14cyclictest111788-21systemd-journal23:47:262
3772911992117,2cyclictest3775290-21run-parts19:23:042
377290999214,12cyclictest3784180-21/usr/sbin/munin19:48:110
377290999212,6cyclictest171rcu_preempt20:38:070
377290999212,16cyclictest3939998-21ntpq23:38:060
3772909992116,4cyclictest3910786-21latency_hist23:06:050
377290999210,17cyclictest0-21swapper/023:28:130
3772911992016,3cyclictest0-21swapper/200:35:152
3772911992015,5cyclictest36-21ksoftirqd/221:56:142
3772911992013,5cyclictest0-21swapper/219:48:112
377291099208,9cyclictest762-21in:imuxsock23:31:581
377291099203,14cyclictest3975625-21/usr/sbin/munin00:18:091
112699200,1rtkit-daemon0-21swapper/022:17:070
377291199198,4cyclictest3832701-21/usr/sbin/munin21:38:012
377291199196,11cyclictest111788-21systemd-journal20:48:112
377291199193,11cyclictest3929048-21sendmail-msp23:34:432
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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