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2025-11-28 - 08:48
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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 Fri Nov 28, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
371307099525,44cyclictest3923938-21/usr/sbin/munin00:23:100
371307099512,6cyclictest3753641-21diskmemload22:38:070
371307199422,7cyclictest3862584-21ntpq23:13:081
371307099410,28cyclictest0-21swapper/023:54:480
371307199392,10cyclictest3788577-21ntpq21:53:111
3713070993934,4cyclictest0-21swapper/023:08:100
3713070993724,3cyclictest0-21swapper/000:13:000
371307099362,31cyclictest0-21swapper/000:06:080
3713070993534,1cyclictest0-21swapper/020:08:090
371307099351,23cyclictest3936078-21grep00:38:030
371307199347,22cyclictest3938377-21apt-get00:41:071
371307199332,13cyclictest3830664-21ntpq22:38:071
371307199331,8cyclictest3881007-21sed23:33:071
371307199324,20cyclictest3743425-21sendmail-msp20:51:071
371307199323,11cyclictest3800978-21ssh22:06:051
371307199322,14cyclictest3906103-21packagekitd00:01:031
371307199322,14cyclictest3906103-21packagekitd00:01:031
3713071993211,20cyclictest3742295-21fschecks_count20:43:021
371307099323,11cyclictest0-21swapper/023:13:080
3713070993226,3cyclictest0-21swapper/020:28:140
371307199312,6cyclictest3825833-21sed22:33:061
3713071993113,17cyclictest3848352-21cut22:58:031
371307099312,13cyclictest0-21swapper/000:01:060
3713072993013,13cyclictest111788-21systemd-journal23:26:592
371307199305,3cyclictest0-21swapper/121:33:021
371307199304,3cyclictest3858028-21ntpq23:08:101
371307199303,12cyclictest3737329-21/usr/sbin/munin20:28:031
371307199302,6cyclictest3791389-21ssh21:56:061
371307099302,26cyclictest3753719-21cat21:16:040
371307099301,19cyclictest0-21swapper/023:23:010
371307299294,21cyclictest111788-21systemd-journal20:48:452
371307199298,3cyclictest11050irq/107-eth%d22:13:091
371307199298,3cyclictest11050irq/107-eth%d22:13:091
371307199294,19cyclictest111788-21systemd-journal00:06:141
371307199292,4cyclictest3887986-21latency_hist23:41:031
3713071992915,13cyclictest0-21swapper/123:48:011
371307299280,6cyclictest171rcu_preempt22:58:422
371307199289,15cyclictest619-21mta-sts-daemon23:51:091
371307199284,5cyclictest3798066-21ntp_states22:03:071
371307199283,9cyclictest3722962-21sendmail-msp19:46:071
371307199283,8cyclictest3906155-21ssh00:01:061
371307199281,6cyclictest3752515-21fschecks_count21:13:031
371307199281,6cyclictest3735708-21grep20:23:041
3713071992816,11cyclictest3917224-21unixbench_singl00:13:161
3713071992811,16cyclictest3843762-21cut22:53:031
371307199280,11cyclictest3817365-21grep22:23:131
371307299273,3cyclictest171rcu_preempt19:33:072
371307199275,3cyclictest0-21swapper/100:23:031
371307199273,3cyclictest3779409-21/usr/sbin/munin21:43:091
371307199271,9cyclictest3715321-21tune2fs19:23:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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