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2026-05-04 - 22:40
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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 Mon May 04, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180432203187,11sleep10-21swapper/107:08:361
159332185168,13sleep00-21swapper/007:05:050
159312177161,12sleep30-21swapper/307:05:053
181432174158,12sleep20-21swapper/207:09:542
36952470,0sleep10-21swapper/111:26:501
108062460,0sleep20-21swapper/212:02:212
26182440,0sleep30-21swapper/311:58:343
257962440,0sleep30-21swapper/310:18:453
82162320,0sleep10-21swapper/112:17:021
183589970,6cyclictest0-21swapper/309:10:123
183459971,3cyclictest13737-21munin-run09:10:010
183589960,6cyclictest0-21swapper/312:05:113
183589960,6cyclictest0-21swapper/312:05:113
183549960,6cyclictest0-21swapper/210:37:562
6709250,0sleep00-21swapper/008:55:110
6709250,0sleep00-21swapper/008:55:110
23959250,1sleep11834999cyclictest11:52:591
18372250,4sleep018402-21ssh11:02:190
183589950,5cyclictest0-21swapper/312:11:303
183589950,5cyclictest0-21swapper/311:39:293
183589950,4cyclictest6586-21apt-get07:50:103
183589950,0cyclictest26999-21ssh11:22:283
183589950,0cyclictest0-21swapper/309:33:033
183549951,1cyclictest0-21swapper/209:15:122
183549950,5cyclictest0-21swapper/212:30:112
183549950,5cyclictest0-21swapper/211:58:072
183549950,5cyclictest0-21swapper/211:41:392
183499951,3cyclictest0-21swapper/111:15:121
183499951,3cyclictest0-21swapper/108:45:131
183499951,2cyclictest0-21swapper/110:55:111
183499951,2cyclictest0-21swapper/110:50:111
183499951,2cyclictest0-21swapper/109:00:101
183499950,5cyclictest0-21swapper/111:24:381
183499950,5cyclictest0-21swapper/110:18:441
183499950,5cyclictest0-21swapper/109:24:191
183499950,2cyclictest0-21swapper/107:30:121
183459955,0cyclictest0-21swapper/008:50:190
183459952,2cyclictest802-21snmpd08:22:430
183459950,5cyclictest0-21swapper/012:38:110
183459950,5cyclictest0-21swapper/012:25:150
183459950,5cyclictest0-21swapper/011:33:440
183459950,5cyclictest0-21swapper/009:28:370
183459950,4cyclictest7448-21ssh11:45:120
183459950,4cyclictest14701-21ssh10:45:130
183459950,0cyclictest0-21swapper/011:40:260
183589944,0cyclictest40-21ksoftirqd/311:30:143
183589944,0cyclictest15616-21kworker/3:011:52:293
183589944,0cyclictest0-21swapper/311:13:353
183589941,3cyclictest802-21snmpd09:57:333
183589940,4cyclictest27153-21grep08:30:143
183589940,4cyclictest18444-21apt-get07:10:123
183589940,4cyclictest17157-21ssh10:45:353
183589940,4cyclictest13741-21diskmemload12:22:473
183589940,4cyclictest13741-21diskmemload10:06:003
183589940,4cyclictest0-21swapper/312:35:483
183589940,4cyclictest0-21swapper/312:15:113
183589940,4cyclictest0-21swapper/312:00:093
183589940,4cyclictest0-21swapper/311:45:473
183589940,4cyclictest0-21swapper/311:25:013
183589940,4cyclictest0-21swapper/311:05:123
183589940,4cyclictest0-21swapper/311:00:013
183589940,4cyclictest0-21swapper/310:55:123
183589940,4cyclictest0-21swapper/310:52:123
183589940,4cyclictest0-21swapper/310:41:173
183589940,4cyclictest0-21swapper/310:38:173
183589940,4cyclictest0-21swapper/310:32:433
183589940,4cyclictest0-21swapper/310:20:133
183589940,4cyclictest0-21swapper/310:14:483
183589940,4cyclictest0-21swapper/310:03:023
183589940,4cyclictest0-21swapper/309:35:123
183589940,4cyclictest0-21swapper/308:40:123
183589940,4cyclictest0-21swapper/308:25:103
183589940,3cyclictest3164-21sh09:20:153
183589940,3cyclictest24749-21ssh09:46:043
183589940,3cyclictest24579-21/usr/sbin/munin09:15:213
183589940,3cyclictest16729-21cut08:10:133
183589940,3cyclictest15860-21users08:05:223
183589940,3cyclictest13740-21ssh09:25:163
183589940,3cyclictest1347-21/usr/sbin/munin12:30:153
183589940,3cyclictest0-21swapper/310:25:023
183589940,3cyclictest0-21swapper/307:25:113
183589940,1cyclictest25141-21ntp_states12:25:183
183549943,1cyclictest23320-21cpuspeed09:30:122
183549943,1cyclictest1700-21grep11:10:132
183549943,1cyclictest16447-21hddtemp_smartct12:05:132
183549943,1cyclictest16447-21hddtemp_smartct12:05:132
183549942,2cyclictest4065-21apt08:50:082
183549942,2cyclictest19852-21grep10:15:192
183549942,1cyclictest10395-21cat11:30:162
183549941,3cyclictest14558-21tr09:10:142
183549941,2cyclictest0-21swapper/208:00:112
183549940,4cyclictest9029-21apt-get09:00:112
183549940,4cyclictest31579-21/usr/sbin/munin07:35:112
183549940,4cyclictest12760-21ssh09:56:032
183549940,4cyclictest0-21swapper/212:28:562
183549940,4cyclictest0-21swapper/212:11:242
183549940,4cyclictest0-21swapper/211:50:132
183549940,4cyclictest0-21swapper/211:47:382
183549940,4cyclictest0-21swapper/211:29:012
183549940,4cyclictest0-21swapper/211:20:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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