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2025-11-18 - 18:44
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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 Tue Nov 18, 2025 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238115399503,5cyclictest2474489-21ntpq10:23:030
238115399441,10cyclictest2539309-21sendmail-msp11:48:100
238115399435,18cyclictest2490391-21ntp_states10:43:070
238115499396,13cyclictest0-21swapper/111:23:041
238115399389,7cyclictest2478453-21ntpq10:28:060
238115399382,19cyclictest0-21swapper/010:08:100
2381155993518,12cyclictest111788-21systemd-journal12:08:112
238115399334,26cyclictest2561790-21ntpq12:13:080
2381153993223,0cyclictest0-21swapper/010:18:070
238115399302,26cyclictest2481747-21grep10:32:590
238115599294,13cyclictest619-21mta-sts-daemon11:35:562
2381155992920,6cyclictest0-21swapper/210:43:072
238115399292,6cyclictest2576700-21ssh12:28:040
238115399291,7cyclictest2428585-21munin-run09:25:550
238115399290,28cyclictest0-21swapper/008:17:570
238115399284,2cyclictest2457653-21/usr/sbin/munin10:02:590
2381153992716,3cyclictest0-21swapper/009:58:000
238115399270,2cyclictest0-21swapper/008:58:050
238115499268,12cyclictest1008-21mta-sts-daemon12:21:191
238115399262,17cyclictest2551621-21latency_hist12:00:550
238115399260,26cyclictest0-21swapper/012:42:570
238115599254,17cyclictest2470424-21ntpq10:18:042
238115499253,4cyclictest171rcu_preempt11:13:041
238115499252,5cyclictest2412293-21open_files08:48:051
238115499252,19cyclictest2474485-21ssh10:23:031
238115399256,2cyclictest14-21ksoftirqd/008:48:050
238115399254,19cyclictest0-21swapper/010:48:070
238115399252,4cyclictest171rcu_preempt09:48:070
238115599247,12cyclictest2423159-21ssh09:18:042
2381155992414,7cyclictest0-21swapper/212:12:172
2381154992420,3cyclictest2574198-21sendmail-msp12:28:041
2381154992415,5cyclictest2557154-21/usr/sbin/munin12:08:111
238115399245,15cyclictest619-21mta-sts-daemon12:18:050
238115399242,4cyclictest111788-21systemd-journal09:55:550
2381153992413,3cyclictest2527524-21ssh11:31:200
238115599232,4cyclictest2434553-21ntpq09:33:082
238115499233,5cyclictest171rcu_preempt12:10:591
238115399234,15cyclictest111788-21systemd-journal11:35:560
238115399231,1cyclictest0-21swapper/009:37:590
2381155992212,8cyclictest0-21swapper/212:30:142
238115599221,13cyclictest111788-21systemd-journal11:53:152
2381154992219,2cyclictest1007-21mta-sts-daemon11:51:241
238115499220,5cyclictest171rcu_preempt10:03:031
2381153992217,3cyclictest2413391-21fschecks_time08:53:100
2381153992214,3cyclictest11050irq/107-eth%d09:15:550
238115399221,2cyclictest2498050-21processes10:53:060
238115399221,20cyclictest0-21swapper/011:55:390
238115399220,2cyclictest2537172-21grep11:43:030
238115599212,10cyclictest111788-21systemd-journal11:10:552
238115399217,3cyclictest2523161-21ssh11:25:550
238115399212,17cyclictest2507913-21sendmail-msp11:13:040
238115399211,19cyclictest0-21swapper/012:03:050
112699210,2rtkit-daemon0-21swapper/107:14:491
238115599204,12cyclictest2450935-21ssh09:53:552
238115499206,9cyclictest0-21swapper/108:28:071
238115499205,7cyclictest2537654-21/usr/sbin/munin11:43:111
238115399207,1cyclictest0-21swapper/009:43:040
238115599199,1cyclictest11050irq/107-eth%d10:13:042
238115599199,1cyclictest11050irq/107-eth%d10:13:042
238115599193,10cyclictest2566228-21ssh12:18:012
238115599192,15cyclictest2462822-21ntpq10:08:102
2381155991911,6cyclictest0-21swapper/211:28:082
238115599191,14cyclictest2420432-21gcc09:13:042
238115499193,2cyclictest171rcu_preempt11:32:561
238115499193,14cyclictest967-21snmpd09:08:041
238115499193,10cyclictest2525091-21/usr/sbin/munin11:28:031
238115499192,13cyclictest2507913-21sendmail-msp11:10:371
238115499191,5cyclictest2506757-21ssh11:03:371
2381154991915,3cyclictest2394918-21fschecks_time07:58:051
2381154991915,2cyclictest2384340-21unixbench_multi07:23:071
238115399193,13cyclictest2559085-21apt-get12:10:550
238115399193,13cyclictest111788-21systemd-journal11:06:510
238115399190,18cyclictest2587014-21grep12:38:080
112699190,5rtkit-daemon1005-21mta-sts-daemon09:21:521
112699190,1rtkit-daemon0-21swapper/008:20:550
238115599186,9cyclictest2403811-21memory08:23:002
238115599185,9cyclictest2553632-21/usr/sbin/munin12:03:062
238115599185,9cyclictest2454071-21ssh09:58:032
238115599182,12cyclictest111788-21systemd-journal10:51:112
238115499185,9cyclictest764-21rs:main1
238115499184,8cyclictest2476942-21ssh10:26:491
238115499184,10cyclictest2533984-21ssh11:38:091
238115499184,10cyclictest2444006-21sendmail-msp09:48:061
2381154991816,1cyclictest0-21swapper/108:45:551
2381154991814,3cyclictest0-21swapper/111:58:111
238115499181,3cyclictest0-21swapper/109:43:061
238115399183,9cyclictest2434544-21ssh09:33:080
238115399182,11cyclictest2570324-21ssh12:22:230
2381153991816,2cyclictest0-21swapper/008:28:120
238115399181,5cyclictest2582445-21ssh12:33:140
238115399180,1cyclictest2465888-21/usr/sbin/munin10:13:020
238115399180,1cyclictest2465888-21/usr/sbin/munin10:13:020
112699180,1rtkit-daemon0-21swapper/008:01:440
2381155991713,3cyclictest2474413-21ntp_kernel_pll_10:23:022
2381155991713,2cyclictest0-21swapper/210:37:582
238115499178,7cyclictest261rcuc/110:46:211
238115499174,12cyclictest0-21swapper/110:18:041
238115499172,5cyclictest2421015-21apt09:15:551
238115499172,2cyclictest171rcu_preempt11:48:101
238115499172,13cyclictest2404578-21sendmail-msp08:33:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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