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2026-05-21 - 01:36
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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 May 20, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318532208192,11sleep10-21swapper/107:08:321
318922200184,12sleep00-21swapper/007:09:030
317872180163,12sleep30-21swapper/307:07:423
319462173157,12sleep20-21swapper/207:09:462
315742470,0sleep20-21swapper/211:17:462
19082470,0sleep10-21swapper/112:06:491
302992460,0sleep30-21swapper/312:20:363
66292450,0sleep06632-21latency07:20:150
282692420,0sleep10-21swapper/112:04:201
42042400,0sleep20-21swapper/210:16:362
321132370,0sleep30-21swapper/309:43:063
298642330,0sleep20-21swapper/210:29:502
3961290,0sleep20-21swapper/210:32:262
321529960,3cyclictest4998-21perf12:25:010
17608260,0sleep30-21swapper/310:55:133
5991250,0sleep10-21swapper/111:36:541
321679955,0cyclictest3383-21kworker/3:010:23:443
321679955,0cyclictest2270-21kworker/3:209:16:363
321679955,0cyclictest0-21swapper/310:06:133
321679955,0cyclictest0-21swapper/309:31:183
321679953,1cyclictest2271-21munin-node07:15:013
321679950,5cyclictest0-21swapper/312:34:553
321679950,4cyclictest8625-21ssh10:35:093
321619955,0cyclictest0-21swapper/210:11:072
321619954,1cyclictest28642-21irqstats11:00:172
321619951,4cyclictest57150irq/125-eth009:30:122
321619950,5cyclictest0-21swapper/212:20:542
321619950,5cyclictest0-21swapper/211:25:112
321619950,5cyclictest0-21swapper/207:10:152
321619950,4cyclictest23064-21apt-get07:55:122
321619950,4cyclictest20606-21ssh11:12:162
321619950,3cyclictest13644-21/usr/sbin/munin09:50:182
321619950,0cyclictest0-21swapper/207:25:132
321569951,2cyclictest0-21swapper/109:00:131
321569951,2cyclictest0-21swapper/109:00:131
321569950,5cyclictest0-21swapper/111:23:541
321529950,5cyclictest0-21swapper/012:13:020
321529950,5cyclictest0-21swapper/012:13:020
321529950,5cyclictest0-21swapper/012:00:230
321529950,5cyclictest0-21swapper/011:40:110
321529950,5cyclictest0-21swapper/011:12:400
321529950,5cyclictest0-21swapper/010:25:110
321529950,5cyclictest0-21swapper/010:03:230
321529950,4cyclictest0-21swapper/007:55:010
321679944,0cyclictest3383-21kworker/3:010:34:563
321679944,0cyclictest3383-21kworker/3:010:01:213
321679944,0cyclictest3383-21kworker/3:009:50:103
321679944,0cyclictest2270-21kworker/3:208:42:593
321679944,0cyclictest0-21swapper/310:50:013
321679943,1cyclictest900-21tr10:15:153
321679943,1cyclictest19458-21diskstats10:40:133
321679942,1cyclictest0-21swapper/307:30:113
321679941,3cyclictest27946-21diskmemload12:03:393
321679941,2cyclictest12016-21ssh12:11:503
321679941,2cyclictest12016-21ssh12:11:503
321679941,2cyclictest0-21swapper/307:45:113
321679940,4cyclictest3596-21diskstats07:15:143
321679940,4cyclictest24193-21diskstats11:30:123
321679940,4cyclictest17133-21python08:45:183
321679940,4cyclictest0-21swapper/312:15:093
321679940,4cyclictest0-21swapper/312:05:113
321679940,4cyclictest0-21swapper/311:55:113
321679940,4cyclictest0-21swapper/311:40:123
321679940,4cyclictest0-21swapper/311:38:553
321679940,4cyclictest0-21swapper/311:25:113
321679940,4cyclictest0-21swapper/311:19:063
321679940,4cyclictest0-21swapper/311:02:043
321679940,4cyclictest0-21swapper/310:45:123
321679940,4cyclictest0-21swapper/310:10:123
321679940,4cyclictest0-21swapper/309:57:333
321679940,4cyclictest0-21swapper/309:21:413
321679940,4cyclictest0-21swapper/309:10:123
321679940,4cyclictest0-21swapper/307:25:113
321679940,3cyclictest8926-21perl08:30:143
321679940,3cyclictest7255-21switchtime12:25:203
321679940,3cyclictest5272-21/usr/sbin/munin11:05:133
321679940,3cyclictest31525-21date11:50:003
321679940,3cyclictest29083-21ssh09:25:203
321679940,3cyclictest25650-21/usr/sbin/munin08:00:123
321679940,3cyclictest23004-21find07:55:003
321679940,3cyclictest21285-21/usr/sbin/munin07:50:153
321679940,3cyclictest15166-21/usr/sbin/munin09:35:133
321679940,3cyclictest15159-21ssh11:10:023
321679940,3cyclictest10663-21sh09:48:313
321679940,3cyclictest0-21swapper/311:45:003
321679940,3cyclictest0-21swapper/309:00:133
321679940,3cyclictest0-21swapper/309:00:123
321679940,3cyclictest0-21swapper/308:10:013
321619943,1cyclictest29079-21fschecks_count09:10:132
321619943,1cyclictest25825-21grep09:40:122
321619941,3cyclictest57150irq/125-eth011:06:022
321619941,2cyclictest0-21swapper/211:40:122
321619941,2cyclictest0-21swapper/209:25:112
321619940,4cyclictest29798-21sh09:57:422
321619940,4cyclictest25490-21perf09:05:022
321619940,4cyclictest25490-21perf09:05:012
321619940,4cyclictest22661-21awk11:45:142
321619940,4cyclictest16713-21apt-get09:20:102
321619940,4cyclictest10458-21hddtemp_smartct11:55:142
321619940,4cyclictest0-21swapper/212:35:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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