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2026-04-30 - 16:00
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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 rackeslot8.osadl.org (updated Thu Apr 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
167737723690,1sleep01677375-21http12:15:000
165012121750,1sleep21650123-21kthreadcore11:55:192
136284121500,3sleep134-21ksoftirqd/108:40:211
149706321270,2sleep12909022-21kworker/1:1+events10:15:261
1239348993027,1cyclictest0-21swapper/312:20:023
1239348993027,1cyclictest0-21swapper/311:50:003
1239348992724,1cyclictest0-21swapper/310:25:253
123934899255,16cyclictest1475405-21turbostat10:05:003
1239348992523,1cyclictest0-21swapper/312:20:063
1239348992320,1cyclictest0-21swapper/311:40:003
123934899211,15cyclictest1525416-21taskset10:35:173
12865582200,1sleep10-21swapper/107:45:001
1239348992017,1cyclictest0-21swapper/311:10:003
1239348992017,1cyclictest0-21swapper/308:25:163
1239348992017,1cyclictest0-21swapper/307:45:193
1239348992016,2cyclictest0-21swapper/311:55:003
123934899201,15cyclictest1662049-21taskset12:05:053
123934899201,15cyclictest1357568-21taskset08:40:063
1239348992010,7cyclictest13311372sleep308:16:103
123934899199,7cyclictest16597422sleep312:00:253
1239348991917,1cyclictest0-21swapper/311:20:013
1239348991916,1cyclictest0-21swapper/311:40:013
1239348991916,1cyclictest0-21swapper/309:20:323
1239348991916,1cyclictest0-21swapper/308:10:253
1239348991916,1cyclictest0-21swapper/308:10:253
123934899191,14cyclictest1591863-21turbostat11:20:003
123934899191,14cyclictest1568301-21taskset11:04:163
123934899191,14cyclictest1351215-21taskset08:35:133
123934899191,13cyclictest1538128-21taskset10:45:153
123934899188,7cyclictest16072862sleep311:29:543
1239348991816,1cyclictest0-21swapper/312:35:153
1239348991815,1cyclictest0-21swapper/312:30:253
123934899181,13cyclictest1676660-21taskset12:12:593
123934899181,13cyclictest1613834-21taskset11:31:213
123934899181,13cyclictest1553325-21chrt10:55:133
123934899181,13cyclictest1497837-21taskset10:17:373
123934899181,13cyclictest1481711-21taskset10:05:473
123934899181,13cyclictest1467008-21taskset09:58:163
123934899181,13cyclictest1459854-21turbostat09:55:003
123934899181,13cyclictest1450816-21taskset09:46:093
123934899181,13cyclictest1435906-21taskset09:38:033
123934899181,13cyclictest1382123-21taskset09:00:193
123934899181,13cyclictest1369841-21taskset08:45:523
123934899181,13cyclictest1273249-21taskset07:30:273
123934899181,13cyclictest1253512-21taskset07:15:243
123934899181,12cyclictest1576598-21taskset11:10:013
17063342170,4sleep11706375-21ntpq12:30:221
1239348991715,1cyclictest0-21swapper/311:55:183
1239348991715,1cyclictest0-21swapper/309:40:013
1239348991714,1cyclictest0-21swapper/310:30:163
1239348991714,1cyclictest0-21swapper/309:30:233
123934899171,13cyclictest1505938-21taskset10:23:423
123934899171,13cyclictest1488768-21taskset10:10:233
123934899171,13cyclictest1419591-21taskset09:25:293
123934899171,13cyclictest1370474-21taskset08:50:463
123934899171,13cyclictest1245494-21taskset07:12:153
123934899171,12cyclictest1535872-21taskset10:40:303
123934899171,12cyclictest1396169-21taskset09:10:253
123934899171,12cyclictest1389032-21taskset09:05:203
123934899171,12cyclictest1344649-21taskset08:30:043
123934899171,12cyclictest1299597-21taskset07:55:043
123934899171,12cyclictest1298982-21taskset07:50:523
123934899171,12cyclictest1275696-21taskset07:35:163
6881160,7low-memory-moni88-21kswapd010:37:001
129998160,1rtkit-daemon0-21swapper/012:23:210
123934899166,7cyclictest13124682sleep308:05:083
1239348991613,1cyclictest0-21swapper/308:55:183
1239348991613,1cyclictest0-21swapper/307:40:033
123934899161,12cyclictest1700028-21taskset12:28:103
123934899161,12cyclictest1545711-21taskset10:50:123
123934899161,12cyclictest1398093-21taskset09:15:023
123934899161,12cyclictest1337566-21taskset08:20:423
123934899161,12cyclictest1266832-21taskset07:26:103
123934899161,12cyclictest1254561-21taskset07:20:053
123934899161,11cyclictest1311855-21taskset08:00:303
17009352140,4sleep01700668-21apt-get12:30:060
15219142140,7sleep244-21ksoftirqd/210:35:012
14112452141,3sleep01411285-21ntpq09:20:290
129998140,9rtkit-daemon1381754-21cut09:00:192
1239348991412,1cyclictest0-21swapper/307:10:013
17151582130,5sleep21715164-21ssh12:36:522
15761882131,8sleep11576192-21ssh11:09:351
15675352131,2sleep10-21swapper/111:01:581
14834602135,2sleep0171rcu_preempt10:10:130
14507852131,9sleep11450789-21ssh09:46:041
14429222130,4sleep21442923-21sshd-session09:40:442
14232562131,4sleep11424898-21cut09:30:211
129998130,8rtkit-daemon1364048-21apt-get08:45:122
129998130,5rtkit-daemon1458391-21kworker/u16:2+xprtiod10:46:541
15898032121,8sleep01589858-21proc_pri11:15:240
15756302127,2sleep20-21swapper/211:07:562
15226442121,7sleep01522948-21irqcore10:35:150
14979302120,9sleep21497936-21ssh10:17:532
14830442120,8sleep11483048-21ssh10:09:461
14542522121,8sleep11455757-21grep09:50:171
14425002123,6sleep11442760-21unixbench_multi09:40:271
129998120,8rtkit-daemon1693424-21diskstats12:25:140
129998120,8rtkit-daemon1397480-21ssh09:13:552
129998120,8rtkit-daemon1259940-21ps07:20:242
129998120,7rtkit-daemon1501682-21cut10:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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