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2026-08-06 - 06:56
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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 Aug 06, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52122219204,10sleep10-21swapper/119:05:031
71352189156,12sleep30-21swapper/319:06:083
72492187169,13sleep00-21swapper/019:07:370
7303210487,12sleep20-21swapper/219:08:212
278942480,0sleep30-21swapper/300:21:313
251982460,0sleep10-21swapper/100:04:241
91712420,0sleep1211ktimersoftd/121:12:341
141892410,0sleep00-21swapper/022:52:570
6172370,0sleep10-21swapper/123:51:191
760499101,6cyclictest11654-21cat20:20:150
760499100,9cyclictest28430-21apt-get20:55:010
760499100,1cyclictest16648-21ssh21:16:000
290242100,0sleep30-21swapper/322:27:423
76049991,7cyclictest0-21swapper/022:25:100
76049991,5cyclictest537-21nscd00:02:490
76049991,5cyclictest29963-21nscd21:12:230
76049990,0cyclictest3224-21diskmemload23:10:180
19497290,0sleep10-21swapper/120:35:171
76049984,3cyclictest0-21swapper/021:05:200
76049981,4cyclictest29962-21nscd21:29:100
76049980,5cyclictest0-21swapper/019:48:170
76049980,1cyclictest7545-21munin-run22:50:010
76049980,1cyclictest6298-21diskstats20:10:120
76049980,1cyclictest4300-21find23:20:170
76049980,1cyclictest3980-21ssh23:53:270
76049980,1cyclictest30993-21ssh21:40:130
76049980,1cyclictest26996-21ssh00:05:160
76049980,1cyclictest26234-21cut22:10:130
76049980,1cyclictest24509-21ssh00:36:070
76049980,1cyclictest1649-21sed23:35:200
76049980,1cyclictest15925-21ssh22:05:080
76049980,1cyclictest13642-21munin-run00:14:590
76049980,0cyclictest7728-21apt-get19:10:120
76049980,0cyclictest292882chrt22:44:330
76049980,0cyclictest19606-21/usr/sbin/munin23:45:200
76049980,0cyclictest0-21swapper/023:55:110
76049980,0cyclictest0-21swapper/020:01:440
76049972,4cyclictest1338-21ssh00:25:020
76049971,5cyclictest1368-21ssh22:30:130
76049971,5cyclictest0-21swapper/020:50:110
76049971,1cyclictest17952-21sh22:55:110
76049970,1cyclictest9732-21mailstats20:15:190
76049970,1cyclictest548-21cron20:00:010
76049970,1cyclictest5270-21ssh23:05:020
76049970,1cyclictest4088-21cut22:15:140
76049970,1cyclictest30247-21sh23:00:250
76049970,1cyclictest29322-21wc19:50:190
76049970,1cyclictest28800-21ssh23:16:160
76049970,1cyclictest28519-21ssh21:55:160
76049970,1cyclictest24546-21tail19:40:200
76049970,1cyclictest24037-21ssh00:20:130
76049970,1cyclictest23113-21ls19:40:010
76049970,1cyclictest22472-21apt-get23:30:120
76049970,1cyclictest22401-21sed20:40:190
76049970,1cyclictest19134-21irqstats20:35:140
76049970,1cyclictest17188-21ntp_states19:25:180
76049970,1cyclictest16954-21sh20:30:170
76049970,1cyclictest14810-21ntp_states22:20:190
76049970,1cyclictest11031-21sh21:30:120
76049970,1cyclictest10781-21sh22:35:110
76049970,1cyclictest0-21swapper/023:40:110
76049970,0cyclictest3224-21diskmemload00:15:430
76049970,0cyclictest21012-21apt-get21:35:110
76049970,0cyclictest13845-21ssh21:47:270
76049970,0cyclictest12600-21apt-get23:25:110
76049970,0cyclictest12600-21apt-get23:25:110
76049970,0cyclictest11439-21/usr/sbin/munin00:30:200
76049970,0cyclictest0-21swapper/022:00:230
76049970,0cyclictest0-21swapper/021:20:180
76049970,0cyclictest0-21swapper/020:45:110
76049970,0cyclictest0-21swapper/019:30:110
18386270,0sleep1201rcuc/121:17:061
76179960,5cyclictest546-21cron20:00:013
76089961,2cyclictest0-21swapper/120:45:111
76049960,1cyclictest3305-21apt-get20:05:140
76049960,1cyclictest18457-21apt-get21:50:130
76049960,1cyclictest13289-21wget20:25:130
76049960,1cyclictest10214-21grep19:15:000
76049960,0cyclictest30939-21apt-get21:00:100
76049960,0cyclictest13453-21apt-get19:20:100
76179955,0cyclictest21395-21kworker/3:023:07:353
76179955,0cyclictest21395-21kworker/3:000:37:093
76179955,0cyclictest21395-21kworker/3:000:14:483
76179955,0cyclictest10166-21kworker/3:122:11:373
76179955,0cyclictest10166-21kworker/3:122:00:263
76179955,0cyclictest10166-21kworker/3:120:08:293
76179950,5cyclictest21102-21ssh00:18:283
76179950,5cyclictest0-21swapper/322:42:093
76179950,5cyclictest0-21swapper/322:22:233
76179950,5cyclictest0-21swapper/322:08:153
76179950,5cyclictest0-21swapper/321:21:163
76179950,0cyclictest0-21swapper/322:33:513
76139950,5cyclictest0-21swapper/221:11:352
76089951,2cyclictest0-21swapper/123:45:101
76089951,2cyclictest0-21swapper/123:30:121
76089951,2cyclictest0-21swapper/119:55:121
76089950,5cyclictest0-21swapper/100:24:121
76179944,0cyclictest26066-21kworker/3:219:12:293
76179944,0cyclictest21395-21kworker/3:022:56:253
76179944,0cyclictest21395-21kworker/3:022:45:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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