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2026-04-30 - 13:47
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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 Thu Apr 30, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256832207190,12sleep30-21swapper/319:07:293
256852202185,12sleep00-21swapper/019:07:300
258262196180,11sleep10-21swapper/119:09:191
256772161141,15sleep20-21swapper/219:07:242
211582650,1sleep02611899cyclictest21:40:190
263322470,1sleep12612399cyclictest21:11:411
237692460,0sleep00-21swapper/000:18:160
31532420,0sleep10-21swapper/122:40:011
129092400,0sleep10-21swapper/122:44:491
175732130,0sleep00-21swapper/022:12:090
311822100,0sleep00-21swapper/021:14:360
2611899103,4cyclictest1907-21cron19:25:010
23536290,0sleep00-21swapper/023:25:200
261239981,2cyclictest0-21swapper/100:30:101
261189980,4cyclictest21878-21sendmail-msp00:00:010
23339270,1sleep30-21swapper/322:50:163
261239961,3cyclictest0-21swapper/122:20:131
261189960,3cyclictest7864-21ssh23:00:010
261539955,0cyclictest24217-21kworker/3:223:38:593
261539955,0cyclictest24217-21kworker/3:200:34:563
261539955,0cyclictest0-21swapper/322:33:023
261539950,5cyclictest0-21swapper/323:46:133
261539950,5cyclictest0-21swapper/322:20:223
261539950,5cyclictest0-21swapper/321:15:373
261539950,5cyclictest0-21swapper/300:23:543
261539950,0cyclictest21515-21diskmemload22:40:103
261399955,0cyclictest0-21swapper/219:30:182
261399954,0cyclictest0-21swapper/223:57:362
261399950,5cyclictest0-21swapper/223:39:072
261399950,5cyclictest0-21swapper/222:04:502
261399950,5cyclictest0-21swapper/200:17:412
261239951,2cyclictest0-21swapper/122:50:111
261239951,2cyclictest0-21swapper/122:10:111
261239951,2cyclictest0-21swapper/120:50:111
261239950,5cyclictest0-21swapper/122:49:301
261239950,5cyclictest0-21swapper/121:32:141
261189951,4cyclictest31864-21munin-run19:20:010
261189951,3cyclictest29582-21ssh00:20:340
261189951,1cyclictest3575-21cron22:05:010
261189950,5cyclictest0-21swapper/023:43:220
261189950,4cyclictest21515-21diskmemload22:50:110
261189950,0cyclictest0-21swapper/021:16:250
261539944,0cyclictest24217-21kworker/3:223:16:363
261539944,0cyclictest24217-21kworker/3:220:28:393
261539944,0cyclictest24217-21kworker/3:200:01:213
261539944,0cyclictest12648-21kworker/3:019:55:043
261539944,0cyclictest12648-21kworker/3:019:32:393
261539944,0cyclictest12648-21kworker/3:019:21:273
261539944,0cyclictest0-21swapper/323:08:233
261539944,0cyclictest0-21swapper/322:45:413
261539944,0cyclictest0-21swapper/321:28:343
261539944,0cyclictest0-21swapper/321:10:413
261539944,0cyclictest0-21swapper/319:45:063
261539943,1cyclictest205-21systemd-journal20:50:003
261539943,1cyclictest11088-21tail21:35:213
261539941,3cyclictest513-21nscd23:25:583
261539941,3cyclictest0-21swapper/321:20:143
261539940,4cyclictest27640-21ntp_states19:10:173
261539940,4cyclictest21515-21diskmemload23:55:013
261539940,4cyclictest0-21swapper/323:11:283
261539940,4cyclictest0-21swapper/322:10:113
261539940,4cyclictest0-21swapper/321:50:123
261539940,4cyclictest0-21swapper/321:45:123
261539940,4cyclictest0-21swapper/319:50:103
261539940,4cyclictest0-21swapper/319:35:113
261539940,4cyclictest0-21swapper/300:10:123
261539940,4cyclictest0-21swapper/300:09:303
261539940,3cyclictest9398-21sh00:28:033
261539940,3cyclictest8145-21ssh23:00:033
261539940,3cyclictest30074-21ssh22:36:443
261539940,3cyclictest29064-21hddtemp_smartct19:15:013
261539940,3cyclictest2673-21df19:25:143
261539940,3cyclictest2237-21rm23:30:553
261539940,3cyclictest21515-21diskmemload00:39:323
261539940,3cyclictest21122-21users21:05:233
261539940,3cyclictest19362-21ssh23:40:173
261539940,3cyclictest12003-21latency_hist22:10:013
261539940,0cyclictest0-21swapper/321:55:473
261399944,0cyclictest0-21swapper/200:26:072
261399944,0cyclictest0-21swapper/200:07:382
261399943,1cyclictest6971-21tr20:40:122
261399943,1cyclictest2151-21/usr/sbin/munin19:25:122
261399942,2cyclictest17679-21kworker/2:022:39:012
261399942,2cyclictest17679-21kworker/2:022:33:532
261399942,2cyclictest17679-21kworker/2:019:44:012
261399942,1cyclictest17361-21cstates19:55:122
261399941,3cyclictest802-21snmpd22:28:212
261399941,2cyclictest0-21swapper/221:20:112
261399940,4cyclictest19415-21/usr/sbin/munin21:40:202
261399940,4cyclictest0-21swapper/223:44:062
261399940,4cyclictest0-21swapper/223:29:132
261399940,4cyclictest0-21swapper/223:20:112
261399940,4cyclictest0-21swapper/223:11:232
261399940,4cyclictest0-21swapper/223:00:552
261399940,4cyclictest0-21swapper/221:58:522
261399940,4cyclictest0-21swapper/221:45:122
261399940,4cyclictest0-21swapper/221:00:112
261399940,4cyclictest0-21swapper/220:10:132
261399940,4cyclictest0-21swapper/219:15:122
261399940,4cyclictest0-21swapper/200:39:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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