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2026-08-28 - 04:33
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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 rackaslot8.osadl.org (updated Fri Aug 28, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160682302271,21sleep10-21swapper/119:09:071
161092287256,20sleep20-21swapper/219:09:362
158302276246,20sleep00-21swapper/019:06:170
160772265237,18sleep30-21swapper/319:09:123
45722590,0sleep24573-21sh00:03:062
29922580,0sleep30-21swapper/321:26:383
192872560,1sleep00-21swapper/022:35:150
86642540,0sleep10-21swapper/122:48:131
206352200,0sleep30-21swapper/322:55:163
134352190,0sleep10-21swapper/100:28:121
68652170,0sleep00-21swapper/023:45:140
265832170,0sleep30-21swapper/321:21:293
150962170,0sleep10-21swapper/121:34:331
88282160,0sleep20-21swapper/221:50:112
195832120,0sleep00-21swapper/022:55:010
188172120,0sleep20-21swapper/221:36:022
1624099122,7cyclictest0-21swapper/222:32:132
21482110,0sleep10-21swapper/123:42:111
1624099104,5cyclictest8589-21/usr/sbin/munin21:30:152
1624099103,6cyclictest4099-21/usr/sbin/munin21:05:142
1624099103,1cyclictest32271-21apt00:20:122
1624099102,6cyclictest14409-21ssh21:14:572
1624099102,5cyclictest27357-21ssh22:59:472
1624099102,5cyclictest21393-21ssh21:18:532
1624099102,5cyclictest20785-21ssh21:56:492
1624099102,5cyclictest11267-21ssh22:50:042
1624099102,3cyclictest5120-21ssh23:05:172
1624099101,6cyclictest5640-21ssh23:44:532
1624099101,6cyclictest5473-21ssh22:07:062
1624099101,6cyclictest24255-21ssh21:40:022
1624099101,6cyclictest17405-21ssh23:12:502
1624099101,6cyclictest15863-21sh23:30:362
1624099101,3cyclictest28589-21sh20:45:162
162409996,2cyclictest8059-21ssh00:25:122
162409996,2cyclictest560-21gdbus19:20:012
162409992,5cyclictest6934-21ssh22:46:532
162409992,5cyclictest29991-21ssh22:02:272
162409992,5cyclictest27826-21ssh23:57:322
162409992,5cyclictest23498-21runrttasks19:24:562
162409992,5cyclictest1444-21ssh23:03:212
162409992,3cyclictest30793-21ssh00:19:162
162409992,3cyclictest24392-21ntp_kernel_pll_21:20:172
162409992,3cyclictest14484-21ssh22:12:352
162409991,6cyclictest922-21ssh23:22:142
162409991,6cyclictest7922-21ssh23:26:102
162409991,6cyclictest27931-21taskset19:31:132
162409991,5cyclictest4961-21seq21:47:262
162409991,5cyclictest2035-21ssh22:44:312
162409991,5cyclictest12309-21ssh00:07:412
162409991,3cyclictest23748-21ssh23:35:202
162409991,3cyclictest21179-21ssh00:32:492
162389998,1cyclictest12-21ksoftirqd/000:00:000
6058280,0sleep30-21swapper/319:55:173
162409984,3cyclictest9207-21idleruntime-cro20:05:012
162409984,3cyclictest7344-21ntpq23:45:172
162409984,3cyclictest275-21systemd-journal20:00:012
162409984,3cyclictest2067-21sh21:25:552
162409984,3cyclictest1625-21turbostat21:00:002
162409983,4cyclictest18121-21/usr/sbin/munin22:15:172
162409983,4cyclictest18121-21/usr/sbin/munin22:15:172
162409983,4cyclictest17016-21grep20:20:162
162409983,4cyclictest0-21swapper/220:25:112
162409983,4cyclictest0-21swapper/220:10:122
162409982,2cyclictest32587-21taskset19:43:252
162409982,2cyclictest29252-21sh00:37:432
162409982,2cyclictest24198-21ssh23:16:402
162409981,5cyclictest24710-21sh22:38:252
162409981,5cyclictest17353-21ssh23:51:092
162409981,3cyclictest29752-21ssh22:21:322
162409981,3cyclictest16774-21expr19:10:132
162409981,2cyclictest6079-21diskmemload22:25:592
162409981,2cyclictest21183-21ssh00:13:112
162389986,2cyclictest22843-21cron21:20:000
162389983,3cyclictest275-21systemd-journal23:40:000
162449973,3cyclictest32686-21ntpq00:00:193
162449973,3cyclictest30727-21snmpd23:21:243
162449973,3cyclictest30727-21snmpd21:04:353
162449973,3cyclictest275-21systemd-journal22:17:033
162449973,3cyclictest275-21systemd-journal22:17:033
162449971,3cyclictest275-21systemd-journal23:52:433
162409974,2cyclictest25581-21cpuspeed_turbos20:40:132
162409974,1cyclictest275-21systemd-journal20:50:002
162409973,3cyclictest9652-21tr20:05:132
162409973,3cyclictest545-21/usr/sbin/munin19:45:122
162409973,3cyclictest3524-21sed19:50:132
162409973,3cyclictest28620-21cat19:35:132
162409973,3cyclictest24726-21ntp_states19:25:162
162409973,3cyclictest23175-21apt-get20:35:122
162409973,3cyclictest2102-21cstates21:00:122
162409973,3cyclictest14030-21expr20:15:122
162409973,3cyclictest0-21swapper/220:30:122
162399973,3cyclictest30727-21snmpd20:05:241
162399973,3cyclictest275-21systemd-journal19:32:031
162399973,2cyclictest275-21systemd-journal22:05:011
162399970,3cyclictest6078-21apt21:10:001
162389975,1cyclictest18436-21dump-pmu-power19:15:010
162389974,2cyclictest28168-21head20:45:150
162389974,2cyclictest275-21systemd-journal23:18:200
162389973,3cyclictest275-21systemd-journal22:45:240
162389973,3cyclictest26081-21cat20:40:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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