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2026-05-08 - 17:31
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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 Fri May 08, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81302200186,10sleep10-21swapper/107:08:071
81292190174,11sleep00-21swapper/007:08:060
79942188170,13sleep30-21swapper/307:06:223
8110210688,13sleep20-21swapper/207:07:532
88342410,0sleep30-21swapper/310:30:183
125492210,0sleep00-21swapper/012:39:550
168172110,1sleep20-21swapper/210:50:162
11456290,0sleep10-21swapper/110:15:361
84519982,3cyclictest3327-21sendmail-msp11:00:000
84519980,7cyclictest0-21swapper/009:30:110
84519971,3cyclictest12121-21munin-run11:20:010
84649966,0cyclictest40-21ksoftirqd/309:55:113
84649960,6cyclictest0-21swapper/310:36:063
84609960,6cyclictest0-21swapper/210:29:352
84519961,4cyclictest0-21swapper/011:45:120
9426250,0sleep00-21swapper/011:02:310
84649955,0cyclictest40-21ksoftirqd/310:55:123
84649955,0cyclictest11010-21kworker/3:111:47:083
84649955,0cyclictest11010-21kworker/3:109:32:463
84649955,0cyclictest11010-21kworker/3:109:21:343
84649955,0cyclictest11010-21kworker/3:108:03:123
84649955,0cyclictest11010-21kworker/3:107:18:253
84649955,0cyclictest0-21swapper/311:19:373
84649954,1cyclictest40-21ksoftirqd/311:25:103
84649953,1cyclictest19402-21ssh11:55:103
84649952,3cyclictest1690-21awk11:30:143
84649950,5cyclictest0-21swapper/310:47:543
84609955,0cyclictest0-21swapper/209:10:172
84609954,1cyclictest30135-21diskstats12:00:132
84609950,5cyclictest0-21swapper/212:26:332
84609950,5cyclictest0-21swapper/212:08:302
84609950,5cyclictest0-21swapper/209:33:332
84609950,5cyclictest0-21swapper/209:29:032
84609950,4cyclictest0-21swapper/211:20:112
84609950,3cyclictest11613-21ssh10:15:412
84559951,3cyclictest0-21swapper/110:25:101
84559951,3cyclictest0-21swapper/109:55:101
84559950,5cyclictest0-21swapper/110:00:501
84559950,5cyclictest0-21swapper/109:27:561
84519952,2cyclictest0-21swapper/010:15:100
84519951,2cyclictest0-21swapper/011:30:110
84519950,5cyclictest4267-21diskmemload12:00:120
84519950,5cyclictest0-21swapper/010:49:350
84519950,5cyclictest0-21swapper/010:25:100
84519950,5cyclictest0-21swapper/009:47:100
84519950,4cyclictest30852-21munin-run11:45:010
84519950,4cyclictest2025-21apt-get09:05:110
84519950,4cyclictest14297-21apt-get07:20:100
84519950,0cyclictest0-21swapper/010:39:150
6487250,0sleep30-21swapper/308:09:073
84649944,0cyclictest40-21ksoftirqd/312:10:093
84649944,0cyclictest40-21ksoftirqd/310:05:113
84649944,0cyclictest40-21ksoftirqd/307:55:113
84649944,0cyclictest11010-21kworker/3:108:59:093
84649944,0cyclictest11010-21kworker/3:108:47:593
84649944,0cyclictest11010-21kworker/3:108:25:353
84649944,0cyclictest11010-21kworker/3:108:14:223
84649944,0cyclictest11010-21kworker/3:107:40:483
84649944,0cyclictest11010-21kworker/3:107:29:353
84649944,0cyclictest0-21swapper/311:37:223
84649943,1cyclictest40-21ksoftirqd/311:15:013
84649943,1cyclictest40-21ksoftirqd/310:50:113
84649942,1cyclictest3540-21ssh11:00:003
84649940,4cyclictest1995-21diskmemload09:40:113
84649940,4cyclictest19235-21apt-get07:30:113
84649940,4cyclictest17652-21diskstats08:30:123
84649940,4cyclictest0-21swapper/312:37:083
84649940,4cyclictest0-21swapper/312:20:353
84649940,4cyclictest0-21swapper/312:08:293
84649940,4cyclictest0-21swapper/312:00:043
84649940,4cyclictest0-21swapper/311:54:033
84649940,4cyclictest0-21swapper/311:06:293
84649940,4cyclictest0-21swapper/310:41:353
84649940,4cyclictest0-21swapper/310:22:003
84649940,4cyclictest0-21swapper/310:15:023
84649940,4cyclictest0-21swapper/309:45:593
84649940,4cyclictest0-21swapper/309:35:113
84649940,4cyclictest0-21swapper/309:28:393
84649940,4cyclictest0-21swapper/309:15:133
84649940,4cyclictest0-21swapper/308:35:223
84649940,4cyclictest0-21swapper/307:50:093
84649940,4cyclictest0-21swapper/307:48:213
84649940,3cyclictest4414-21sort09:10:013
84649940,3cyclictest333-21cut10:10:183
84649940,3cyclictest31963-21sh12:16:473
84649940,3cyclictest29960-21/usr/sbin/munin10:25:123
84649940,3cyclictest25335-21rm12:30:063
84649940,3cyclictest25290-21sh11:41:353
84649940,3cyclictest24276-21python09:50:193
84649940,3cyclictest22774-21tune2fs08:40:123
84649940,3cyclictest12637-21/usr/sbin/munin11:20:183
84649940,3cyclictest11982-21/usr/sbin/munin08:20:123
84649940,3cyclictest10649-21ssh10:00:123
84649940,1cyclictest81rcu_preempt08:15:113
84649940,1cyclictest5351-21df_inode09:10:133
84649940,1cyclictest22226-21df_inode07:35:133
84609944,0cyclictest0-21swapper/212:13:012
84609944,0cyclictest0-21swapper/209:20:012
84609943,1cyclictest11646-21sed11:35:122
84609943,1cyclictest0-21swapper/211:25:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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