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2025-11-26 - 21:37
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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 Nov 26, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
245032198182,11sleep10-21swapper/107:09:411
243092194178,12sleep00-21swapper/007:07:100
243372187170,12sleep30-21swapper/307:07:333
241822158139,14sleep20-21swapper/207:05:322
6612510,0sleep20-21swapper/212:13:542
150532400,0sleep315050-21awk11:00:013
2470799110,7cyclictest10298-21apt-get10:25:123
212962100,0sleep20-21swapper/209:41:492
247079991,7cyclictest25714-21apt-get11:05:103
247079990,9cyclictest3287-21apt-get11:10:113
247079990,9cyclictest3287-21apt-get11:10:113
247079990,9cyclictest20599-21apt-get08:05:123
247079990,8cyclictest8672-21ssh09:20:013
247079990,8cyclictest8239-21apt-get11:45:123
247079990,8cyclictest8235-21apt-get07:40:113
247079990,8cyclictest23242-21apt-get11:20:123
247079990,8cyclictest21854-21irqstats11:35:153
247079990,8cyclictest19122-21apt-get09:25:153
247079990,8cyclictest10701-21/usr/sbin/munin07:45:163
247079990,8cyclictest10457-21apt-get08:50:113
247079981,6cyclictest844-21apt-get11:25:133
247079980,8cyclictest17809-21apt-get10:45:113
247079980,8cyclictest16375-21perf09:40:003
247079980,8cyclictest12615-21apt-get10:10:133
247079980,7cyclictest7767-21munin-run08:44:593
247079980,7cyclictest583-21apt-get07:25:103
247079980,7cyclictest4941-21sh09:18:013
247079980,7cyclictest4133-21grep09:50:013
247079980,7cyclictest32697-21apt-get10:20:123
247079980,7cyclictest32120-21latency_hist10:20:003
247079980,7cyclictest32082-21turbostat12:29:593
247079980,7cyclictest3027-21apt-get08:35:103
247079980,7cyclictest29903-21users07:15:233
247079980,7cyclictest29275-21interrupts11:55:163
247079980,7cyclictest28691-21hddtemp_smartct10:50:143
247079980,7cyclictest28043-21apt-get08:20:133
247079980,7cyclictest2797-21munin-run08:34:593
247079980,7cyclictest24938-21apt10:00:103
247079980,7cyclictest24822-21/usr/sbin/munin07:10:173
247079980,7cyclictest24266-21sh09:43:423
247079980,7cyclictest24240-21ssh11:52:513
247079980,7cyclictest24232-21seq10:00:003
247079980,7cyclictest225-21systemd-journal09:55:003
247079980,7cyclictest20923-21apt-get09:10:143
247079980,7cyclictest20363-21dump-pmu-power08:05:003
247079980,7cyclictest20345-21apt-get10:30:143
247079980,7cyclictest18133-21apt-get09:05:113
247079980,7cyclictest15750-21apt-get11:00:123
247079980,7cyclictest15600-21apt-get12:05:113
247079980,7cyclictest13263-21apt-get11:15:123
247079980,7cyclictest13172-21apt-get07:50:123
247079980,7cyclictest12847-21ssh12:20:113
247079980,7cyclictest11553-21sed12:35:183
247079980,7cyclictest0-21swapper/311:40:123
247079980,7cyclictest0-21swapper/308:15:123
247079980,5cyclictest3528-21diskstats12:15:153
247079970,7cyclictest9315-21ntpq10:40:193
247079970,7cyclictest61-21kswapd012:30:103
247079970,7cyclictest61-21kswapd010:05:123
247079970,7cyclictest0-21swapper/309:00:123
247079970,7cyclictest0-21swapper/308:25:123
247079970,6cyclictest7991-21apt-get08:45:123
247079970,6cyclictest3070-21apt07:30:123
247079970,6cyclictest30551-21apt07:20:143
247079970,6cyclictest30528-21cpuspeed10:35:133
247079970,6cyclictest29112-21apt09:30:113
247079970,6cyclictest24941-21cron12:10:013
247079970,6cyclictest23065-21apt-get08:10:103
247079970,6cyclictest10789-21ssh11:30:103
247019970,5cyclictest0-21swapper/207:10:132
246989971,3cyclictest30497-21awk09:15:010
246989970,3cyclictest4136-21munin-run09:50:010
247079960,6cyclictest12929-21apt-get08:55:113
247079960,6cyclictest0-21swapper/312:00:113
247079960,6cyclictest0-21swapper/307:55:123
247079960,6cyclictest0-21swapper/307:35:113
247019960,5cyclictest0-21swapper/208:30:122
246999961,3cyclictest0-21swapper/109:25:161
246989962,4cyclictest14168-21perf09:55:000
247019950,5cyclictest0-21swapper/211:47:032
247019950,4cyclictest0-21swapper/210:20:132
247019950,4cyclictest0-21swapper/209:25:162
247019950,0cyclictest0-21swapper/211:22:022
246999951,2cyclictest0-21swapper/110:40:131
246999951,2cyclictest0-21swapper/107:10:141
246999950,5cyclictest0-21swapper/112:32:281
246999950,5cyclictest0-21swapper/111:04:251
246999950,5cyclictest0-21swapper/109:35:151
246989950,5cyclictest0-21swapper/011:43:480
246989950,5cyclictest0-21swapper/011:13:240
246989950,5cyclictest0-21swapper/011:13:230
246989950,5cyclictest0-21swapper/010:09:400
246989950,5cyclictest0-21swapper/009:44:560
246989950,4cyclictest20375-21diskmemload10:40:130
6891240,3sleep07038-21sensors_temp08:40:230
247019944,0cyclictest31-21ksoftirqd/210:00:002
247019944,0cyclictest31-21ksoftirqd/209:15:142
247019944,0cyclictest0-21swapper/209:30:172
247019940,4cyclictest0-21swapper/212:20:282
247019940,4cyclictest0-21swapper/212:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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