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2026-04-12 - 23:14
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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 Sun Apr 12, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238802202186,12sleep10-21swapper/107:06:071
219662194178,12sleep00-21swapper/007:05:090
239292190173,12sleep30-21swapper/307:06:463
219632162144,13sleep20-21swapper/207:05:082
199622460,0sleep10-21swapper/111:47:231
85212430,0sleep10-21swapper/110:22:431
255642430,0sleep10-21swapper/111:34:421
14952410,0sleep10-21swapper/112:25:471
241592380,0sleep00-21swapper/011:49:590
26805290,0sleep20-21swapper/210:15:202
20990290,0sleep30-21swapper/309:10:113
15896290,0sleep00-21swapper/010:26:000
243529981,3cyclictest27444-21munin-run08:20:000
243529980,4cyclictest5664-21munin-run11:25:000
243529973,4cyclictest6734-21idleruntime-cro09:35:010
243679962,3cyclictest28667-21ssh10:32:313
243679960,6cyclictest0-21swapper/311:07:103
243599960,5cyclictest0-21swapper/209:45:112
243679955,0cyclictest0-21swapper/312:05:143
243679953,1cyclictest0-21swapper/309:55:123
243679950,5cyclictest0-21swapper/309:31:093
243679950,5cyclictest0-21swapper/307:45:133
243679950,4cyclictest10114-21cat07:45:013
243679950,4cyclictest0-21swapper/309:40:113
243599950,5cyclictest0-21swapper/212:19:282
243599950,5cyclictest0-21swapper/212:05:202
243599950,5cyclictest0-21swapper/209:13:232
243599950,4cyclictest4388-21ssh11:40:112
243599950,4cyclictest12569-21apt-get08:55:112
243579951,2cyclictest0-21swapper/108:20:131
243579951,2cyclictest0-21swapper/107:10:111
243579950,5cyclictest0-21swapper/112:24:071
243579950,5cyclictest0-21swapper/112:24:061
243579950,5cyclictest0-21swapper/111:14:521
243579950,5cyclictest0-21swapper/109:11:291
243529955,0cyclictest0-21swapper/012:11:340
243529950,5cyclictest19973-21diskmemload11:29:560
243529950,5cyclictest0-21swapper/011:10:360
243529950,5cyclictest0-21swapper/010:31:000
243529950,5cyclictest0-21swapper/009:55:050
243529950,4cyclictest21441-21kworker/0:011:43:580
19293250,0sleep10-21swapper/110:44:061
243679944,0cyclictest0-21swapper/311:57:043
243679944,0cyclictest0-21swapper/311:38:273
243679943,1cyclictest761-21cut08:30:163
243679943,1cyclictest7566-21/usr/sbin/munin11:10:153
243679942,1cyclictest802-21snmpd12:20:023
243679942,1cyclictest802-21snmpd12:20:023
243679942,1cyclictest26928-21cat07:15:013
243679941,3cyclictest802-21snmpd12:28:233
243679941,3cyclictest802-21snmpd11:20:213
243679941,3cyclictest7733-21basename08:45:123
243679941,2cyclictest2495-21sh10:35:193
243679940,4cyclictest5691-21ssh12:12:103
243679940,4cyclictest23419-21ssh12:36:503
243679940,4cyclictest20241-21/usr/sbin/munin08:05:203
243679940,4cyclictest14101-21ssh12:00:203
243679940,4cyclictest12611-21/usr/sbin/munin07:50:123
243679940,4cyclictest0-21swapper/312:30:103
243679940,4cyclictest0-21swapper/312:16:403
243679940,4cyclictest0-21swapper/311:47:163
243679940,4cyclictest0-21swapper/311:40:123
243679940,4cyclictest0-21swapper/311:00:123
243679940,4cyclictest0-21swapper/310:50:073
243679940,4cyclictest0-21swapper/310:40:113
243679940,4cyclictest0-21swapper/308:20:123
243679940,3cyclictest8453-21memory09:35:173
243679940,3cyclictest766-21diskstats07:25:123
243679940,3cyclictest6174-21sh09:18:473
243679940,3cyclictest31470-21ntp_states07:20:173
243679940,3cyclictest30174-21ssh09:45:293
243679940,3cyclictest27793-21/usr/sbin/munin10:00:173
243679940,3cyclictest25694-21sh09:28:093
243679940,3cyclictest2474-21ssh10:20:103
243679940,3cyclictest24735-21/usr/sbin/munin10:15:133
243679940,3cyclictest22661-21cat10:30:013
243679940,3cyclictest1969-21latency_hist11:55:003
243679940,3cyclictest18764-21irqstats08:00:163
243679940,3cyclictest16892-21diskstats11:30:103
243679940,3cyclictest16326-21ntp_states09:00:193
243679940,3cyclictest14950-21sh09:54:443
243679940,3cyclictest14191-21ssh10:10:013
243679940,3cyclictest13341-21ssh09:21:523
243679940,1cyclictest9286-21/usr/sbin/munin10:55:163
243679940,1cyclictest17815-21cut09:05:143
243679940,1cyclictest17815-21cut09:05:143
243679940,1cyclictest15080-21/usr/sbin/munin07:55:143
243679940,1cyclictest12566-21/usr/sbin/munin08:55:143
243599944,0cyclictest0-21swapper/210:49:322
243599944,0cyclictest0-21swapper/209:55:422
243599942,1cyclictest1907-21ssh11:54:592
243599941,3cyclictest6142-21cat07:35:162
243599941,2cyclictest8793-21ssh12:30:092
243599941,1cyclictest0-21swapper/210:00:122
243599941,1cyclictest0-21swapper/209:35:132
243599940,4cyclictest4404-21ssh10:52:182
243599940,4cyclictest3286-21perl11:55:152
243599940,4cyclictest1887-21ssh11:06:522
243599940,4cyclictest0-21swapper/212:37:472
243599940,4cyclictest0-21swapper/212:20:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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