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2026-08-12 - 20:31
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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 Aug 12, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29952199184,11sleep10-21swapper/107:07:191
30902190155,13sleep00-21swapper/007:08:310
29972190174,12sleep30-21swapper/307:07:213
28792161143,13sleep20-21swapper/207:05:472
228822420,0sleep00-21swapper/011:15:270
172582410,0sleep00-21swapper/009:50:590
339999102,4cyclictest6477-21idleruntime-cro12:30:010
339999100,1cyclictest32677-21ssh11:37:010
33999991,5cyclictest963-21taskset08:05:550
33999990,6cyclictest10102-21chrt11:09:550
33999990,1cyclictest9482-21ssh11:58:270
33999990,1cyclictest26493-21ssh09:40:030
33999990,1cyclictest26028-21ssh12:06:140
33999990,1cyclictest17823-21interrupts12:35:140
33999990,1cyclictest13237-21ssh11:43:590
33999990,1cyclictest12944-21ssh12:16:010
33999990,1cyclictest12395-21ssh10:54:410
33999990,0cyclictest6367-21ssh10:02:030
33999990,0cyclictest25096-21ssh09:39:190
24660290,0sleep30-21swapper/308:55:133
33999980,5cyclictest29473-21ssh10:14:100
33999980,1cyclictest32363-21/usr/sbin/munin11:20:200
33999980,1cyclictest31427-21munin-run09:10:010
33999980,1cyclictest25011-21ssh10:27:530
33999980,1cyclictest24758-21perl07:50:150
33999980,1cyclictest24681-21munin-run11:50:000
33999980,1cyclictest15846-21ssh10:06:470
33999980,1cyclictest15675-21ls10:40:020
33999980,1cyclictest15242-21ssh11:28:390
33999980,1cyclictest0-21swapper/011:50:120
33999980,0cyclictest7769-21ssh09:46:180
33999980,0cyclictest5706-21ssh10:18:150
33999980,0cyclictest23589-21apt-get11:00:140
33999980,0cyclictest18036-21ssh10:56:590
33999980,0cyclictest0-21swapper/010:46:530
33999980,0cyclictest0-21swapper/007:25:200
33999971,5cyclictest9253-21ssh09:15:100
33999970,1cyclictest8979-21idleruntime-cro07:20:020
33999970,1cyclictest8742-21sh08:25:010
33999970,1cyclictest7754-21sed09:30:150
33999970,1cyclictest4765-21ntp_states07:10:190
33999970,1cyclictest4155-21ssh09:12:030
33999970,1cyclictest32311-21ssh12:10:080
33999970,1cyclictest29688-21perl08:00:150
33999970,1cyclictest29210-21grep10:30:110
33999970,1cyclictest28797-21awk08:00:000
33999970,1cyclictest27316-21grep09:00:120
33999970,1cyclictest25710-21cat08:55:200
33999970,1cyclictest23985-21sed07:50:010
33999970,1cyclictest23783-21apt08:55:010
33999970,1cyclictest19594-21expr09:20:140
33999970,1cyclictest19448-21ssh12:20:020
33999970,1cyclictest18655-21awk08:45:010
33999970,1cyclictest18278-21ssh10:40:220
33999970,1cyclictest15825-21taskset08:36:020
33999970,1cyclictest11464-21latency_hist07:25:020
33999970,1cyclictest11324-21diskstats11:10:120
33999970,0cyclictest9081-21apt-get10:20:140
33999970,0cyclictest9081-21apt-get10:20:140
33999970,0cyclictest29307-21apt-get09:25:120
33999970,0cyclictest19118-21apt-get07:40:120
33999970,0cyclictest18099-21ssh11:30:120
33999970,0cyclictest16628-21apt-get07:35:100
33999970,0cyclictest12750-21apt-get12:00:130
33999970,0cyclictest0-21swapper/012:30:120
33999970,0cyclictest0-21swapper/009:57:500
34139960,6cyclictest0-21swapper/310:16:473
33999960,1cyclictest8978-21apt-get08:25:120
33999960,1cyclictest4534-21df08:15:140
33999960,1cyclictest14663-21expr07:30:130
33999960,1cyclictest0-21swapper/008:45:010
33999960,0cyclictest1532-21apt-get08:10:110
33999960,0cyclictest11446-21apt-get08:30:110
34139955,0cyclictest30065-21ssh11:03:123
34139955,0cyclictest24155-21kworker/3:112:25:373
34139955,0cyclictest0-21swapper/312:06:123
34139954,1cyclictest18876-21kworker/3:208:30:293
34139950,5cyclictest0-21swapper/309:23:413
34139950,5cyclictest0-21swapper/309:16:593
34139950,4cyclictest28745-21apt-get09:05:013
34139950,0cyclictest0-21swapper/309:54:493
34089955,0cyclictest0-21swapper/211:27:392
34089950,5cyclictest0-21swapper/211:17:022
34089950,5cyclictest0-21swapper/209:13:302
34089950,0cyclictest0-21swapper/211:56:182
34039951,2cyclictest0-21swapper/111:10:111
34039950,5cyclictest0-21swapper/109:48:491
34039950,0cyclictest0-21swapper/110:33:301
26363250,0sleep10-21swapper/112:23:181
34139944,0cyclictest18876-21kworker/3:209:37:393
34139944,0cyclictest18876-21kworker/3:209:04:043
34139944,0cyclictest18876-21kworker/3:208:08:073
34139944,0cyclictest18876-21kworker/3:207:56:563
34139944,0cyclictest18876-21kworker/3:207:45:443
34139944,0cyclictest18876-21kworker/3:207:23:203
34139944,0cyclictest18876-21kworker/3:207:12:073
34139944,0cyclictest0-21swapper/312:31:053
34139944,0cyclictest0-21swapper/310:33:213
34139944,0cyclictest0-21swapper/308:40:003
34139943,1cyclictest16936-21diskstats08:40:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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