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2026-04-10 - 04:25
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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 Fri Apr 10, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232982199184,11sleep10-21swapper/119:09:511
230592197181,11sleep30-21swapper/319:06:493
230712186170,11sleep00-21swapper/019:06:580
230632161141,15sleep20-21swapper/219:06:522
67152450,0sleep30-21swapper/322:21:533
56062420,0sleep00-21swapper/000:12:310
18282120,0sleep10-21swapper/121:32:191
2351099113,4cyclictest23725-21munin-run23:50:010
235109992,3cyclictest3322-21sendmail-msp23:40:010
235229961,3cyclictest0-21swapper/320:30:123
235109962,4cyclictest11600-21sendmail-msp00:00:000
235109960,3cyclictest29288-21munin-run19:20:000
235229951,3cyclictest799-21runrttasks00:15:113
235229951,2cyclictest0-21swapper/320:15:123
235229950,5cyclictest26224-21ssh00:06:303
235229950,5cyclictest0-21swapper/321:00:123
235219955,0cyclictest0-21swapper/200:35:092
235219950,5cyclictest12171-21ssh23:28:042
235219950,5cyclictest0-21swapper/221:02:172
235219950,4cyclictest20356-21ssh00:20:132
235219950,0cyclictest0-21swapper/200:07:402
235159952,2cyclictest0-21swapper/121:10:151
235159951,2cyclictest0-21swapper/100:15:111
235159950,5cyclictest0-21swapper/123:51:311
235159950,5cyclictest0-21swapper/121:47:591
235159950,0cyclictest0-21swapper/123:04:051
235109955,0cyclictest0-21swapper/021:45:220
235109951,4cyclictest11491-21kworker/0:220:40:190
235109950,5cyclictest0-21swapper/022:07:380
235109950,1cyclictest22221-21munin-run20:10:010
3093240,0sleep10-21swapper/123:39:531
235229944,0cyclictest0-21swapper/323:20:323
235229944,0cyclictest0-21swapper/323:17:283
235229944,0cyclictest0-21swapper/321:57:363
235229943,1cyclictest29875-21apt21:15:013
235229941,2cyclictest0-21swapper/321:05:113
235229941,2cyclictest0-21swapper/320:05:013
235229941,1cyclictest0-21swapper/323:50:123
235229941,1cyclictest0-21swapper/321:50:113
235229941,1cyclictest0-21swapper/321:20:143
235229940,4cyclictest57150irq/125-eth000:35:093
235229940,4cyclictest568-21ssh21:15:403
235229940,4cyclictest0-21swapper/323:55:443
235229940,4cyclictest0-21swapper/323:45:123
235229940,4cyclictest0-21swapper/323:00:113
235229940,4cyclictest0-21swapper/322:35:023
235229940,4cyclictest0-21swapper/322:25:063
235229940,4cyclictest0-21swapper/322:16:043
235229940,4cyclictest0-21swapper/322:10:113
235229940,4cyclictest0-21swapper/321:47:173
235229940,4cyclictest0-21swapper/321:40:123
235229940,4cyclictest0-21swapper/320:10:093
235229940,4cyclictest0-21swapper/319:55:133
235229940,4cyclictest0-21swapper/300:03:183
235229940,3cyclictest9704-21diskstats22:55:113
235229940,3cyclictest8859-21sh22:07:183
235229940,3cyclictest8522-21/usr/sbin/munin21:35:203
235229940,3cyclictest7375-21cstates19:40:123
235229940,3cyclictest510-21/usr/sbin/munin00:10:133
235229940,3cyclictest30753-21irqstats23:05:153
235229940,3cyclictest30461-21apt00:25:113
235229940,3cyclictest2881-21hddtemp_smartct19:30:153
235229940,3cyclictest28349-21ssh22:48:283
235229940,3cyclictest26394-21swap19:15:013
235229940,3cyclictest26350-21sh21:28:463
235229940,3cyclictest21759-21ntp_states00:20:193
235229940,3cyclictest12815-21df20:55:133
235229940,3cyclictest12310-21ntp_states22:40:183
235229940,3cyclictest10789-21ssh23:43:213
235229940,3cyclictest0-21swapper/322:00:123
235229940,2cyclictest0-21swapper/319:10:013
235229940,1cyclictest7358-21/usr/sbin/munin20:45:133
235229940,1cyclictest5604-21/usr/sbin/munin23:25:153
235229940,1cyclictest27411-21/usr/sbin/munin20:20:183
235229940,1cyclictest22587-21/usr/sbin/munin22:30:163
235229940,0cyclictest0-21swapper/322:52:093
235229940,0cyclictest0-21swapper/321:33:093
235219943,1cyclictest7595-21gltestperf21:35:142
235219942,2cyclictest20201-21ssh23:15:392
235219942,1cyclictest802-21snmpd23:05:512
235219942,1cyclictest802-21snmpd22:34:322
235219942,1cyclictest14937-21which23:45:142
235219941,2cyclictest2466-21cat23:55:122
235219940,4cyclictest30525-21ssh21:45:592
235219940,4cyclictest12785-21ssh21:21:462
235219940,4cyclictest0-21swapper/223:53:522
235219940,4cyclictest0-21swapper/223:40:122
235219940,4cyclictest0-21swapper/223:36:402
235219940,4cyclictest0-21swapper/223:30:102
235219940,4cyclictest0-21swapper/223:20:082
235219940,4cyclictest0-21swapper/222:45:082
235219940,4cyclictest0-21swapper/222:42:122
235219940,4cyclictest0-21swapper/221:25:122
235219940,4cyclictest0-21swapper/221:10:442
235219940,4cyclictest0-21swapper/221:05:112
235219940,4cyclictest0-21swapper/220:35:152
235219940,4cyclictest0-21swapper/219:56:392
235219940,4cyclictest0-21swapper/219:10:122
235219940,4cyclictest0-21swapper/200:17:302
235219940,4cyclictest0-21swapper/200:13:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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