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2025-12-11 - 09:17
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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 Thu Dec 11, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2007839994610,16cyclictest122792-21ntpd00:34:230
2007839994610,16cyclictest122792-21ntpd00:34:230
200783999392,36cyclictest2152243-21aten_r2power_en23:08:080
200783999361,23cyclictest0-21swapper/023:48:180
200784199353,9cyclictest171rcu_preempt21:20:391
2007839993516,4cyclictest0-21swapper/021:34:220
200783999350,27cyclictest0-21swapper/021:58:180
200784299342,13cyclictest2047688-21diskmemload23:58:122
2007841993325,5cyclictest271ktimers/123:58:121
200783999338,22cyclictest0-21swapper/000:26:220
2007839993318,5cyclictest2150810-21sendmail-msp23:15:180
200784199323,8cyclictest171rcu_preempt00:18:141
200783999321,16cyclictest0-21swapper/022:36:150
200783999312,20cyclictest2199588-21grep23:58:140
2007839993119,2cyclictest2212357-21aten_r2power_cu00:13:060
2007839993111,8cyclictest2204915-21ssh00:03:450
2007839993019,2cyclictest2132308-21sendmail-msp22:51:200
200784299291,4cyclictest171rcu_preempt22:43:112
200783999293,23cyclictest2127822-21ssh22:41:180
200783999292,18cyclictest0-21swapper/023:53:080
200783999292,13cyclictest0-21swapper/023:33:070
200784299282,6cyclictest122792-21ntpd22:56:152
200783999289,4cyclictest0-21swapper/022:13:080
200783999284,14cyclictest2211053-21ssh00:11:150
2007839992815,4cyclictest2218169-21unixbench-2d00:18:210
200784199275,14cyclictest111788-21systemd-journal00:36:151
200784199275,14cyclictest111788-21systemd-journal00:36:151
112699260,3rtkit-daemon1125-21rtkit-daemon21:27:321
200784299250,3cyclictest0-21swapper/222:06:152
200784199253,7cyclictest0-21swapper/100:26:161
200784199252,7cyclictest11050irq/107-eth%d22:26:591
200784199252,2cyclictest171rcu_preempt23:23:161
200783999251,24cyclictest58-21kcompactd022:18:120
112699250,5rtkit-daemon1125-21rtkit-daemon22:37:042
112699250,4rtkit-daemon1007-21mta-sts-daemon21:45:070
200784299245,15cyclictest2148426-21ntpq23:03:122
200783999244,16cyclictest619-21mta-sts-daemon20:33:160
2007839992424,0cyclictest0-21swapper/022:23:120
2007839992414,2cyclictest2055067-21sed21:23:140
200783999240,2cyclictest2171915-21timerandwakeup23:28:220
200783999240,1cyclictest2125095-21/usr/sbin/munin22:38:170
2007839992313,8cyclictest2016485-1kworker/0:2H+kblockd20:13:150
200783999230,1cyclictest2037271-21ntpq20:43:120
200783999230,18cyclictest0-21swapper/021:28:170
200784399224,6cyclictest0-21swapper/322:23:143
200784399223,6cyclictest0-21swapper/323:58:123
200784399221,8cyclictest0-21swapper/300:08:093
2007842992212,6cyclictest2150810-21sendmail-msp23:06:232
200784199223,14cyclictest2094730-21sendmail-msp22:06:151
200783999224,14cyclictest2243333-21munin-node00:38:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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