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2026-06-18 - 21:12
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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 Jun 18, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159932205189,11sleep10-21swapper/107:09:161
157082194177,12sleep00-21swapper/007:05:340
157062189172,12sleep30-21swapper/307:05:333
138262177159,13sleep20-21swapper/207:05:082
132202470,0sleep10-21swapper/109:41:171
161282450,0sleep316131-21latency_hist10:15:013
40472440,0sleep30-21swapper/310:55:523
162259993,3cyclictest4820-21munin-run08:55:000
10076290,0sleep10-21swapper/110:43:261
21590280,0sleep10-21swapper/111:05:121
19285270,0sleep10-21swapper/108:15:211
162259970,3cyclictest31133-21munin-run11:10:000
162349960,6cyclictest0-21swapper/208:20:172
162349960,1cyclictest16156-21ssh12:21:432
162259960,5cyclictest20145-21apt-get08:20:010
162259960,3cyclictest9034-21munin-run11:15:000
162259960,3cyclictest2365-21perf08:50:000
162259960,3cyclictest11345-21munin-run12:19:590
15421260,0sleep30-21swapper/312:37:373
4068250,0sleep00-21swapper/011:28:090
22057250,0sleep10-21swapper/107:20:001
162359950,5cyclictest0-21swapper/311:56:173
162359950,5cyclictest0-21swapper/308:15:153
162359950,4cyclictest27921-21apt-get11:40:113
162359950,4cyclictest26010-21perl10:35:133
162359950,3cyclictest0-21swapper/311:16:433
162349952,3cyclictest471-21ssh11:58:182
162349950,5cyclictest12245-21diskmemload12:30:102
162349950,4cyclictest0-21swapper/209:40:122
162299951,2cyclictest0-21swapper/110:10:111
162299950,5cyclictest0-21swapper/110:51:491
162299950,5cyclictest0-21swapper/110:47:361
162299950,5cyclictest0-21swapper/109:45:191
162299950,5cyclictest0-21swapper/109:36:271
162259955,0cyclictest0-21swapper/010:45:310
162259954,1cyclictest0-21swapper/012:04:490
162259951,2cyclictest0-21swapper/007:45:110
162259950,5cyclictest30498-21tail10:05:210
162259950,5cyclictest0-21swapper/011:46:280
162259950,5cyclictest0-21swapper/010:35:110
162259950,5cyclictest0-21swapper/009:16:450
162259950,4cyclictest0-21swapper/009:40:010
162259950,0cyclictest0-21swapper/010:29:300
162259950,0cyclictest0-21swapper/010:10:270
162359944,0cyclictest0-21swapper/310:16:113
162359944,0cyclictest0-21swapper/309:38:043
162359943,1cyclictest2737-21grep09:20:203
162359943,1cyclictest17791-21grep07:10:173
162359942,2cyclictest57150irq/125-eth009:32:583
162359942,1cyclictest19767-21ssh10:48:073
162359941,3cyclictest24430-21sh09:15:183
162359941,1cyclictest20151-21expr09:45:113
162359940,4cyclictest29941-21ssh09:50:053
162359940,4cyclictest29941-21ssh09:50:053
162359940,4cyclictest11114-21sh11:00:043
162359940,4cyclictest0-21swapper/312:30:103
162359940,4cyclictest0-21swapper/311:35:163
162359940,4cyclictest0-21swapper/311:20:103
162359940,4cyclictest0-21swapper/311:06:213
162359940,4cyclictest0-21swapper/310:30:103
162359940,4cyclictest0-21swapper/310:05:123
162359940,4cyclictest0-21swapper/308:59:123
162359940,4cyclictest0-21swapper/308:10:153
162359940,4cyclictest0-21swapper/307:49:133
162359940,4cyclictest0-21swapper/307:25:133
162359940,4cyclictest0-21swapper/307:15:113
162359940,3cyclictest8283-21rm10:42:193
162359940,3cyclictest5285-21cut10:25:133
162359940,3cyclictest31398-21apt-key11:10:003
162359940,3cyclictest27566-21/usr/sbin/munin08:35:173
162359940,3cyclictest25617-21df08:30:113
162359940,3cyclictest23775-21ssh12:10:013
162359940,3cyclictest23465-21hddtemp_smartct08:25:143
162359940,3cyclictest21149-21irqstats08:20:153
162359940,3cyclictest17082-21ssh09:11:433
162359940,3cyclictest15254-21apt-get11:50:003
162359940,3cyclictest11905-21perl09:25:143
162359940,3cyclictest10097-21sh11:46:493
162359940,2cyclictest0-21swapper/312:15:343
162359940,2cyclictest0-21swapper/309:44:413
162359940,1cyclictest8014-21apt-get09:55:123
162359940,1cyclictest30061-21/usr/sbin/munin08:40:153
162359940,1cyclictest29874-21/usr/sbin/munin11:25:213
162359940,1cyclictest18256-21/usr/sbin/munin10:00:203
162359940,1cyclictest13926-21/usr/sbin/munin12:05:193
162359940,0cyclictest0-21swapper/310:51:063
162349944,0cyclictest0-21swapper/210:20:582
162349944,0cyclictest0-21swapper/209:26:152
162349943,1cyclictest1492-21wc08:45:162
162349940,4cyclictest68550irq/127-eth1-Tx10:15:112
162349940,4cyclictest29223-21perl10:05:142
162349940,4cyclictest20117-21ssh12:07:542
162349940,4cyclictest12245-21diskmemload11:40:112
162349940,4cyclictest0-21swapper/212:35:092
162349940,4cyclictest0-21swapper/211:30:112
162349940,4cyclictest0-21swapper/211:26:062
162349940,4cyclictest0-21swapper/211:15:102
162349940,4cyclictest0-21swapper/211:00:112
162349940,4cyclictest0-21swapper/210:55:092
162349940,4cyclictest0-21swapper/210:30:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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