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2025-12-11 - 02:18
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack5slot2.osadl.org (updated Thu Dec 11, 2025 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260032201185,11sleep10-21swapper/119:07:231
260252188155,28sleep30-21swapper/319:07:413
258592181166,11sleep00-21swapper/019:05:340
258512178161,13sleep20-21swapper/219:05:272
88202470,0sleep30-21swapper/323:12:533
303672450,0sleep00-21swapper/023:23:510
247172440,0sleep10-21swapper/123:05:001
7732430,0sleep10-21swapper/121:30:551
33522430,0sleep10-21swapper/122:05:151
152562430,0sleep215258-21fschecks_count00:05:172
149222350,0sleep10-21swapper/120:55:161
136672120,1sleep013664-21ssh23:15:160
60472100,0sleep10-21swapper/123:11:081
10827290,0sleep30-21swapper/300:19:443
263659981,6cyclictest0-21swapper/322:20:123
263539982,3cyclictest6851-21awk23:45:010
263539981,3cyclictest14166-21munin-run20:55:000
263659970,6cyclictest0-21swapper/322:30:113
263539965,1cyclictest22044-21grep21:25:210
263539960,1cyclictest20112-21sh22:13:400
263659955,0cyclictest0-21swapper/323:16:223
263659954,1cyclictest20540-21irqstats21:05:153
263659953,1cyclictest29721-21/usr/sbin/munin19:15:143
263659953,1cyclictest14876-21grep00:05:163
263659950,5cyclictest10122-21/usr/sbin/munin23:30:183
263659950,4cyclictest29507-21apt-get20:20:103
263659950,4cyclictest0-21swapper/321:30:153
263659950,4cyclictest0-21swapper/320:40:113
263659950,1cyclictest16884-21ntp_states21:55:193
263609953,2cyclictest17787-21kworker/2:121:45:292
263609951,2cyclictest0-21swapper/221:20:142
263609950,4cyclictest17704-21apt-get22:45:012
263609950,0cyclictest81rcu_preempt00:35:132
263549951,3cyclictest0-21swapper/123:15:121
263549951,2cyclictest0-21swapper/123:45:101
263549951,2cyclictest0-21swapper/121:35:131
263549951,2cyclictest0-21swapper/120:40:101
263549950,5cyclictest0-21swapper/122:29:421
263549950,5cyclictest0-21swapper/122:14:091
263549950,5cyclictest0-21swapper/100:00:481
263539950,5cyclictest0-21swapper/022:27:460
263539950,5cyclictest0-21swapper/000:18:550
263659944,0cyclictest0-21swapper/323:01:223
263659944,0cyclictest0-21swapper/300:37:073
263659943,1cyclictest742-21fschecks_time21:15:143
263659943,1cyclictest29559-21wc21:45:183
263659943,1cyclictest25431-21/usr/sbin/munin22:00:153
263659943,1cyclictest25431-21/usr/sbin/munin22:00:153
263659943,1cyclictest14884-21tr19:50:103
263659942,1cyclictest808-21snmpd20:07:223
263659941,3cyclictest808-21snmpd21:40:583
263659941,3cyclictest56750irq/130-eth021:00:193
263659940,4cyclictest8011-21ssh23:28:583
263659940,4cyclictest7533-21apt-get22:40:013
263659940,4cyclictest24944-21ssh00:26:033
263659940,4cyclictest2456-21diskmemload22:37:043
263659940,4cyclictest0-21swapper/323:45:113
263659940,4cyclictest0-21swapper/323:22:383
263659940,4cyclictest0-21swapper/322:48:023
263659940,4cyclictest0-21swapper/322:10:023
263659940,4cyclictest0-21swapper/321:24:013
263659940,4cyclictest0-21swapper/321:10:123
263659940,4cyclictest0-21swapper/320:35:123
263659940,4cyclictest0-21swapper/320:00:223
263659940,4cyclictest0-21swapper/300:20:123
263659940,4cyclictest0-21swapper/300:10:133
263659940,3cyclictest5397-21ssh00:00:133
263659940,3cyclictest5170-21ssh22:05:283
263659940,3cyclictest4737-21apt-get19:30:123
263659940,3cyclictest4434-21rm22:54:433
263659940,3cyclictest31673-21sh00:30:113
263659940,3cyclictest28311-21memory23:55:153
263659940,3cyclictest27611-21sh23:38:533
263659940,3cyclictest27012-21/usr/sbin/munin20:15:133
263659940,3cyclictest25269-21sh23:05:113
263659940,3cyclictest23650-21hddtemp_smartct22:15:153
263659940,3cyclictest10203-21sh22:25:113
263659940,1cyclictest9696-21/usr/sbin/munin19:40:223
263659940,1cyclictest8356-21df21:35:143
263659940,1cyclictest6264-21tail21:50:183
263659940,1cyclictest29918-21/usr/sbin/munin23:40:143
263659940,1cyclictest2267-21/usr/sbin/munin19:25:203
263659940,1cyclictest2023-21/usr/sbin/munin20:30:153
263659940,1cyclictest17295-21/usr/sbin/munin23:50:173
263609944,0cyclictest0-21swapper/223:14:012
263609944,0cyclictest0-21swapper/220:36:252
263609944,0cyclictest0-21swapper/220:15:382
263609944,0cyclictest0-21swapper/200:27:132
263609943,1cyclictest479-21systemd-logind19:35:182
263609943,1cyclictest30163-21cpuspeed23:40:132
263609943,1cyclictest10501-21kworker/2:220:48:452
263609942,2cyclictest17787-21kworker/2:122:55:422
263609942,2cyclictest10501-21kworker/2:221:26:452
263609942,1cyclictest4614-21ssh00:00:112
263609942,1cyclictest23384-21ssh21:10:172
263609941,2cyclictest0-21swapper/220:25:142
263609940,4cyclictest24977-21ssh23:37:122
263609940,4cyclictest23839-21ssh23:04:262
263609940,4cyclictest21491-21ssh21:57:522
263609940,4cyclictest0-21swapper/223:50:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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