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2026-09-24 - 07:17
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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 Sep 24, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162122204189,11sleep10-21swapper/119:09:281
159772201184,13sleep30-21swapper/319:06:263
159742186168,13sleep00-21swapper/019:06:220
15961211395,13sleep20-21swapper/219:06:122
140002390,0sleep214002-21latency_hist23:05:002
164679991,4cyclictest24702-21cron19:25:000
164679971,5cyclictest0-21swapper/019:55:120
164809960,5cyclictest0-21swapper/319:50:123
164749960,4cyclictest0-21swapper/219:10:112
164679960,3cyclictest27193-21munin-run19:30:000
164809955,0cyclictest30537-21kworker/3:222:07:083
164809950,4cyclictest5937-21rm23:33:243
164809950,4cyclictest0-21swapper/321:20:123
164749954,1cyclictest0-21swapper/222:27:112
164749952,3cyclictest4574-21ssh23:15:472
164749950,5cyclictest0-21swapper/222:58:362
164749950,5cyclictest0-21swapper/222:48:342
164749950,5cyclictest0-21swapper/221:12:062
164749950,0cyclictest0-21swapper/223:54:462
164749950,0cyclictest0-21swapper/222:20:032
164709951,2cyclictest0-21swapper/122:20:111
164709951,2cyclictest0-21swapper/122:15:141
164709951,2cyclictest0-21swapper/120:20:121
164709951,2cyclictest0-21swapper/119:50:121
164709950,5cyclictest0-21swapper/123:48:011
164709950,5cyclictest0-21swapper/122:54:291
164709950,5cyclictest0-21swapper/122:28:001
164709950,5cyclictest0-21swapper/122:00:301
164709950,5cyclictest0-21swapper/121:55:161
164709950,5cyclictest0-21swapper/121:50:011
164709950,5cyclictest0-21swapper/121:44:471
164709950,5cyclictest0-21swapper/100:35:361
164679952,3cyclictest1736-21kworker/0:121:11:180
164679950,5cyclictest0-21swapper/022:26:050
164679950,5cyclictest0-21swapper/021:05:190
164679950,0cyclictest18789-21ssh22:01:290
164679950,0cyclictest0-21swapper/019:45:170
164809944,0cyclictest30537-21kworker/3:219:30:233
164809943,1cyclictest22387-21grep19:20:003
164809942,1cyclictest24454-21ssh23:10:163
164809942,1cyclictest15903-21ssh22:16:193
164809941,3cyclictest0-21swapper/319:25:113
164809941,2cyclictest0-21swapper/323:55:113
164809941,2cyclictest0-21swapper/321:40:113
164809941,2cyclictest0-21swapper/321:30:163
164809940,4cyclictest32372-21ssh21:35:293
164809940,4cyclictest29886-21apt-get19:35:123
164809940,4cyclictest15993-21ssh23:38:343
164809940,4cyclictest12077-21cron20:05:003
164809940,4cyclictest0-21swapper/323:25:093
164809940,4cyclictest0-21swapper/323:15:113
164809940,4cyclictest0-21swapper/323:02:443
164809940,4cyclictest0-21swapper/322:55:113
164809940,4cyclictest0-21swapper/322:35:113
164809940,4cyclictest0-21swapper/322:30:123
164809940,4cyclictest0-21swapper/322:25:383
164809940,4cyclictest0-21swapper/322:24:383
164809940,4cyclictest0-21swapper/321:50:373
164809940,4cyclictest0-21swapper/321:45:133
164809940,4cyclictest0-21swapper/321:04:123
164809940,4cyclictest0-21swapper/300:35:193
164809940,4cyclictest0-21swapper/300:26:083
164809940,4cyclictest0-21swapper/300:20:113
164809940,3cyclictest9754-21latency_hist20:00:003
164809940,3cyclictest7178-21/usr/sbin/munin22:45:113
164809940,3cyclictest5876-21ssh23:50:023
164809940,3cyclictest5796-21ssh00:05:403
164809940,3cyclictest3156-21awk20:50:163
164809940,3cyclictest30685-21/usr/sbin/munin22:40:163
164809940,3cyclictest28477-21ssh00:17:343
164809940,3cyclictest25684-21ssh00:00:063
164809940,3cyclictest24605-21latency_hist20:30:003
164809940,3cyclictest22438-21ssh21:15:113
164809940,3cyclictest21115-21ssh23:08:173
164809940,3cyclictest20973-21rm22:51:293
164809940,3cyclictest20243-21ssh23:40:193
164809940,3cyclictest17522-21ssh22:00:413
164809940,3cyclictest16608-21apt-config19:10:003
164809940,3cyclictest14767-21sed20:10:013
164809940,3cyclictest13815-21ssh21:59:393
164809940,3cyclictest11683-21ssh22:14:573
164809940,3cyclictest11448-21ssh23:20:013
164809940,3cyclictest0-21swapper/319:20:113
164809940,1cyclictest0-21swapper/300:14:553
164749944,0cyclictest31-21ksoftirqd/221:35:122
164749943,1cyclictest31-21ksoftirqd/221:15:222
164749943,0cyclictest31-21ksoftirqd/220:20:012
164749942,1cyclictest29210-21taskset00:01:102
164749942,1cyclictest19783-21hddtemp_smartct23:40:172
164749942,1cyclictest11963-21ssh22:15:002
164749941,3cyclictest11848-21diskmemload23:57:392
164749941,3cyclictest11848-21diskmemload22:10:502
164749941,2cyclictest0-21swapper/223:25:102
164749941,2cyclictest0-21swapper/200:20:112
164749940,4cyclictest7136-21apt-get21:00:092
164749940,4cyclictest29702-21ssh22:40:122
164749940,4cyclictest14862-21taskset22:00:112
164749940,4cyclictest0-21swapper/223:47:212
164749940,4cyclictest0-21swapper/223:35:122
164749940,4cyclictest0-21swapper/223:30:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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