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2025-11-26 - 18:24
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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 Wed Nov 26, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2595754995913,31cyclictest0-21swapper/012:41:020
2595754994324,3cyclictest0-21swapper/009:53:090
259575499390,22cyclictest2766043-21/usr/sbin/munin11:58:040
259575499367,16cyclictest0-21swapper/008:23:000
259575499362,27cyclictest11050irq/107-eth%d12:06:420
2595754993515,4cyclictest2658820-21sendmail-msp09:48:100
2595754993515,4cyclictest2658820-21sendmail-msp09:48:100
259575699338,10cyclictest11050irq/107-eth%d09:43:172
259575499334,24cyclictest0-21swapper/011:38:050
259575499311,29cyclictest2708821-21ssh10:48:120
2595755993022,6cyclictest2607005-21ntp_kernel_err07:48:071
2595754993021,0cyclictest0-21swapper/007:32:590
259575499300,26cyclictest2668834-21grep09:58:130
259575499290,19cyclictest0-21swapper/010:25:000
259575499283,21cyclictest2586547-1kworker/0:0H+kblockd07:26:040
2595754992811,3cyclictest0-21swapper/012:38:050
259575699274,16cyclictest111788-21systemd-journal07:26:042
259575599278,12cyclictest1006-21mta-sts-daemon10:15:531
259575499272,4cyclictest211irq_work/011:23:130
259575499271,2cyclictest0-21swapper/011:28:100
259575499270,17cyclictest2758162-21head11:47:590
2595756992613,8cyclictest2645224-21entropy09:28:062
2595756992613,8cyclictest2645224-21entropy09:28:062
259575599268,4cyclictest171rcu_preempt12:18:071
259575499268,4cyclictest2714782-21munin-run10:56:020
259575499267,9cyclictest2640340-1kworker/0:1H+mmc_complete10:11:020
2595754992622,3cyclictest2727859-21cut11:11:020
2595754992618,2cyclictest2645466-21ssh09:28:090
2595754992618,2cyclictest2645466-21ssh09:28:090
259575699258,15cyclictest2708768-21ntpq10:48:112
259575699254,17cyclictest2664519-21ssh09:53:092
259575699254,15cyclictest2674112-21sendmail-msp10:08:072
259575499258,16cyclictest2620555-21awk08:28:070
259575499254,16cyclictest2703569-21/usr/sbin/munin10:43:100
259575499251,18cyclictest2684351-21/usr/sbin/munin10:18:110
2595755992421,2cyclictest2597283-21unixbench_multi07:18:141
259575499249,14cyclictest2745936-21open_files11:33:090
259575499247,16cyclictest2649154-21grep09:33:120
259575499245,0cyclictest0-21swapper/010:03:060
259575499241,22cyclictest0-21swapper/009:38:060
259575499240,15cyclictest607-21dbus-daemon09:46:020
2595756992321,1cyclictest1005-21mta-sts-daemon11:58:052
2595756992320,2cyclictest1008-21mta-sts-daemon10:53:062
259575699231,12cyclictest2748183-21ssh11:36:022
259575599233,14cyclictest2762768-21ssh11:53:081
259575599232,17cyclictest2633050-21sendmail-msp09:13:081
2595755992317,4cyclictest2609208-21grep07:53:301
2595755992316,2cyclictest0-21swapper/112:13:121
259575499236,15cyclictest0-21swapper/008:18:020
259575499235,13cyclictest2642235-21ntpq09:23:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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