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2026-04-22 - 03:00
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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 Wed Apr 22, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160832200184,11sleep10-21swapper/119:07:591
160132191158,11sleep30-21swapper/319:07:053
160932190172,13sleep00-21swapper/019:08:050
159622172154,13sleep20-21swapper/219:06:242
302272770,1sleep31640699cyclictest21:34:253
246172430,0sleep10-21swapper/123:05:421
311892420,0sleep00-21swapper/023:56:590
133592420,0sleep30-21swapper/322:29:133
233052410,0sleep20-21swapper/222:34:052
14907290,0sleep00-21swapper/023:01:020
163949982,3cyclictest24849-21rm22:35:010
164009970,6cyclictest0-21swapper/200:25:112
163949971,5cyclictest0-21swapper/000:35:120
164069965,1cyclictest1403-21cat19:40:203
163959962,3cyclictest0-21swapper/123:50:111
163949961,5cyclictest22192-21munin-run20:25:010
164069955,0cyclictest40-21ksoftirqd/300:20:183
164069955,0cyclictest18958-21kworker/3:122:53:473
164069955,0cyclictest18958-21kworker/3:121:35:253
164069955,0cyclictest18958-21kworker/3:121:24:133
164069954,1cyclictest40-21ksoftirqd/321:15:143
164069954,1cyclictest3864-21grep20:50:193
164069953,1cyclictest40-21ksoftirqd/322:30:123
164069950,5cyclictest0-21swapper/323:20:113
164069950,4cyclictest27145-21apt-get22:20:123
164069950,3cyclictest31925-21ssh23:41:123
164009955,0cyclictest0-21swapper/222:29:442
164009954,1cyclictest0-21swapper/223:10:112
164009950,5cyclictest18007-21ssh23:35:032
164009950,5cyclictest0-21swapper/223:30:332
164009950,5cyclictest0-21swapper/223:17:452
164009950,5cyclictest0-21swapper/200:20:112
163959951,2cyclictest0-21swapper/123:35:121
163959951,2cyclictest0-21swapper/121:40:121
163959951,2cyclictest0-21swapper/120:50:111
163959950,5cyclictest0-21swapper/123:01:091
163959950,5cyclictest0-21swapper/121:19:081
163949951,3cyclictest32375-21sh21:19:490
163949950,5cyclictest0-21swapper/022:48:420
163949950,1cyclictest31606-21munin-run23:10:010
164069944,0cyclictest40-21ksoftirqd/322:45:123
164069944,0cyclictest18958-21kworker/3:121:01:483
164069944,0cyclictest18958-21kworker/3:120:28:133
164069944,0cyclictest18958-21kworker/3:120:17:033
164069944,0cyclictest18958-21kworker/3:119:21:033
164069944,0cyclictest18958-21kworker/3:100:12:073
164069944,0cyclictest0-21swapper/300:35:163
164069942,1cyclictest802-21snmpd21:56:493
164069941,3cyclictest802-21snmpd22:02:163
164069941,0cyclictest81rcu_preempt19:15:013
164069940,4cyclictest31805-21ssh22:06:043
164069940,4cyclictest23237-21perl00:25:143
164069940,4cyclictest21962-21apt-get23:05:133
164069940,4cyclictest13976-21sshd20:05:213
164069940,4cyclictest0-21swapper/323:55:103
164069940,4cyclictest0-21swapper/323:53:123
164069940,4cyclictest0-21swapper/323:27:263
164069940,4cyclictest0-21swapper/323:18:293
164069940,4cyclictest0-21swapper/323:10:483
164069940,4cyclictest0-21swapper/323:01:003
164069940,4cyclictest0-21swapper/322:41:383
164069940,4cyclictest0-21swapper/322:15:123
164069940,4cyclictest0-21swapper/300:30:113
164069940,4cyclictest0-21swapper/300:15:113
164069940,4cyclictest0-21swapper/300:00:123
164069940,3cyclictest7757-21rm23:30:023
164069940,3cyclictest32700-21ssh21:50:373
164069940,3cyclictest29656-21chrt19:35:073
164069940,3cyclictest27195-21/usr/sbin/munin19:30:203
164069940,3cyclictest26452-21irqstats22:35:173
164069940,3cyclictest24029-21ssh21:46:363
164069940,3cyclictest1552-21sh22:55:133
164069940,3cyclictest12259-21ssh21:10:013
164069940,3cyclictest11151-21/usr/sbin/munin21:25:163
164069940,3cyclictest10672-21hddtemp_smartct20:00:153
164069940,3cyclictest0-21swapper/300:06:313
164069940,1cyclictest4670-21/usr/sbin/munin19:50:193
164069940,1cyclictest19944-21/usr/sbin/munin20:20:133
164069940,1cyclictest18823-21diskstats23:35:143
164009944,0cyclictest0-21swapper/222:02:302
164009944,0cyclictest0-21swapper/221:40:322
164009944,0cyclictest0-21swapper/200:35:182
164009942,2cyclictest18702-21ntpq20:15:172
164009941,3cyclictest802-21snmpd21:16:102
164009940,4cyclictest7487-21ssh22:57:442
164009940,4cyclictest16081-21ssh23:01:442
164009940,4cyclictest12027-21diskmemload23:56:402
164009940,4cyclictest11367-21ssh22:12:072
164009940,4cyclictest0-21swapper/223:27:552
164009940,4cyclictest0-21swapper/223:06:242
164009940,4cyclictest0-21swapper/222:50:102
164009940,4cyclictest0-21swapper/222:45:122
164009940,4cyclictest0-21swapper/222:40:122
164009940,4cyclictest0-21swapper/222:22:452
164009940,4cyclictest0-21swapper/222:15:212
164009940,4cyclictest0-21swapper/221:55:212
164009940,4cyclictest0-21swapper/221:45:122
164009940,4cyclictest0-21swapper/221:30:132
164009940,4cyclictest0-21swapper/221:20:132
164009940,4cyclictest0-21swapper/221:13:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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