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2025-12-08 - 02:09
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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 Mon Dec 08, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4079441994736,6cyclictest0-21swapper/022:08:080
4079441994625,3cyclictest0-21swapper/021:45:130
4079442993930,7cyclictest1005-21mta-sts-daemon21:38:131
4079441993920,6cyclictest83352-21fschecks_count00:03:100
407944199358,21cyclictest0-21swapper/021:32:000
407944199341,25cyclictest0-21swapper/022:36:340
4079441993121,2cyclictest0-21swapper/021:37:000
407944199311,29cyclictest4174010-21ntpq22:13:120
407944199311,20cyclictest0-21swapper/000:07:120
407944299305,5cyclictest171rcu_preempt22:53:131
4079442993016,3cyclictest171rcu_preempt22:03:081
407944199301,5cyclictest4124554-21awk21:21:120
407944499294,3cyclictest11050irq/107-eth%d22:41:152
407944199291,21cyclictest0-21swapper/023:18:090
407944299287,13cyclictest28312-21ssh23:03:401
407944299283,8cyclictest4153643-21ssh21:51:481
407944299282,3cyclictest171rcu_preempt22:28:141
4079444992712,9cyclictest0-21swapper/222:46:482
407944299272,19cyclictest4079445-21systemd-run19:16:111
407944199274,18cyclictest4192978-21ntpq22:33:140
407944199273,17cyclictest14-21ksoftirqd/021:58:070
407944299267,10cyclictest11050irq/107-eth%d00:13:121
407944199263,4cyclictest14-21ksoftirqd/023:28:160
4079441992615,3cyclictest64627-21/usr/sbin/munin23:43:060
407944199260,17cyclictest0-21swapper/022:46:200
112699260,3rtkit-daemon1125-21rtkit-daemon20:28:370
407944299253,4cyclictest171rcu_preempt19:41:201
407944299253,4cyclictest171rcu_preempt19:41:201
407944199254,17cyclictest2243333-21munin-node23:33:470
407944199254,15cyclictest18257-21ssh22:53:130
4079441992521,3cyclictest111906-21cat00:38:090
407944199251,4cyclictest23092-21awk22:58:160
407944199251,16cyclictest78476-21ssh23:58:060
407944499247,15cyclictest619-21mta-sts-daemon23:33:152
407944299244,14cyclictest4168791-21/usr/sbin/munin22:08:081
407944299241,5cyclictest0-21swapper/123:16:141
407944199240,23cyclictest4185968-21sendmail-msp22:28:140
4079441992318,3cyclictest0-21swapper/019:51:170
4079441992314,7cyclictest29938-21sendmail-msp23:13:120
4079441992312,2cyclictest0-21swapper/021:51:370
407944499223,14cyclictest992-21lldpd23:08:232
4079444992214,5cyclictest4155708-21threads21:53:212
407944299223,17cyclictest79363-21ld23:58:131
407944199229,3cyclictest46711-21ssh23:23:120
407944199224,14cyclictest619-21mta-sts-daemon19:16:440
407944199223,18cyclictest92157-21apt-get00:13:120
407944199222,13cyclictest171rcu_preempt21:16:450
4079441992216,3cyclictest1005-21mta-sts-daemon22:20:550
4079441992214,7cyclictest151ktimers/019:33:160
407944199220,1cyclictest4133792-21munin-plugin-st21:31:110
407944299213,7cyclictest0-21swapper/123:48:151
407944199213,14cyclictest2243333-21munin-node22:23:460
4079441992118,2cyclictest26577-21/usr/sbin/munin23:03:050
407944199211,6cyclictest67908-21sendmail-msp23:53:140
407944199211,1cyclictest0-21swapper/020:18:170
407944499204,14cyclictest1008-21mta-sts-daemon00:13:122
407944499204,10cyclictest50416-21ssh23:28:042
407944499202,14cyclictest58-21kcompactd022:18:132
4079444992015,4cyclictest0-21swapper/219:38:122
4079444992012,6cyclictest1006-21mta-sts-daemon22:38:122
4079444992011,7cyclictest0-21swapper/222:08:142
407944299205,4cyclictest171rcu_preempt19:33:161
407944299202,4cyclictest4136115-21ntpq21:33:141
407944299202,2cyclictest171rcu_preempt19:18:121
407944199209,8cyclictest191rcuc/020:51:290
407944199205,8cyclictest4079398-21munin-run19:16:110
407944199205,11cyclictest60733-21ntp_kernel_pll_23:38:120
4079441992017,0cyclictest0-21swapper/000:43:150
407944199201,4cyclictest69715-21grep23:48:090
407944499192,5cyclictest0-21swapper/223:47:052
407944499192,11cyclictest4147976-21sendmail-msp21:47:592
407944299194,8cyclictest30154-21ssh23:06:121
407944299193,4cyclictest11050irq/107-eth%d23:38:461
407944299193,12cyclictest4178810-21ssh22:18:131
407944299192,13cyclictest4124614-21ssh21:21:141
407944299192,11cyclictest4192986-21ssh22:33:141
4079442991916,3cyclictest30466-21kworker/u8:3+events_unbound23:12:411
407944299191,4cyclictest171rcu_preempt21:51:121
407944199191,6cyclictest4097350-21ntpq20:08:140
4079441991915,2cyclictest34742-21cat23:11:130
407944199191,4cyclictest4118224-21cut21:13:100
407944699183,8cyclictest0-21swapper/300:13:123
407944499188,5cyclictest111788-21systemd-journal20:51:112
407944499187,5cyclictest84304-21timerandwakeup00:03:202
407944499186,3cyclictest11050irq/107-eth%d21:58:072
407944499185,11cyclictest1007-21mta-sts-daemon21:38:132
407944499183,14cyclictest4082760-21munin-run19:26:122
407944499183,11cyclictest259-21jbd2/mmcblk0p2-819:51:502
4079444991813,4cyclictest104868-21unixbench_singl00:28:232
407944299183,7cyclictest4091538-1kworker/1:0H+kblockd20:31:121
407944299181,5cyclictest0-21swapper/120:51:291
407944199184,10cyclictest111788-21systemd-journal21:08:090
407944199182,2cyclictest4150256-21ssh21:48:150
407944699172,7cyclictest0-21swapper/321:33:143
407944499176,8cyclictest4094203-21/usr/sbin/munin19:58:162
4079444991712,3cyclictest4187781-21gltestperf22:28:102
4079444991710,3cyclictest0-21swapper/219:48:142
4079444991710,3cyclictest0-21swapper/219:48:142
407944299177,7cyclictest271ktimers/122:38:121
407944299173,9cyclictest108092-21ssh00:33:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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