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2026-03-30 - 21:28
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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 Mon Mar 30, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117092198181,12sleep00-21swapper/007:06:460
118592191172,13sleep10-21swapper/107:08:441
118042190173,12sleep30-21swapper/307:08:013
117012184168,11sleep20-21swapper/207:06:402
145342460,0sleep30-21swapper/310:30:503
57872440,0sleep10-21swapper/110:10:511
33272100,0sleep10-21swapper/112:32:341
1213499102,4cyclictest9485-21ssh10:45:010
1213499102,4cyclictest9485-21ssh10:45:010
23840290,0sleep10-21swapper/111:39:141
19427280,0sleep20-21swapper/210:17:522
121349982,3cyclictest19971-21munin-run08:30:000
121439960,5cyclictest61-21kswapd011:45:142
121389962,2cyclictest0-21swapper/110:40:111
121389962,2cyclictest0-21swapper/110:40:111
121449955,0cyclictest0-21swapper/311:46:133
121449955,0cyclictest0-21swapper/310:19:123
121449955,0cyclictest0-21swapper/309:13:183
121449952,3cyclictest28600-21awk08:45:153
121449950,5cyclictest0-21swapper/311:54:313
121449950,5cyclictest0-21swapper/311:12:193
121449950,5cyclictest0-21swapper/310:41:113
121449950,5cyclictest0-21swapper/310:41:113
121449950,5cyclictest0-21swapper/308:50:013
121449950,4cyclictest17349-21ssh09:30:113
121449950,0cyclictest0-21swapper/312:33:303
121449950,0cyclictest0-21swapper/310:54:253
121439955,0cyclictest31-21ksoftirqd/207:40:162
121439954,1cyclictest301ktimersoftd/209:18:482
121439953,2cyclictest31-21ksoftirqd/211:05:132
121439953,2cyclictest301ktimersoftd/211:24:182
121439953,2cyclictest301ktimersoftd/211:10:282
121439953,1cyclictest1534-21/usr/sbin/munin12:00:132
121439950,5cyclictest0-21swapper/209:55:122
121439950,4cyclictest9833-21apt-get12:20:112
121439950,4cyclictest30082-21apt-get12:30:122
121439950,4cyclictest21821-21apt-get12:10:122
121389952,2cyclictest0-21swapper/110:25:121
121389952,2cyclictest0-21swapper/107:45:121
121389951,3cyclictest0-21swapper/110:05:121
121389951,3cyclictest0-21swapper/109:30:111
121389951,3cyclictest0-21swapper/108:20:121
121389951,3cyclictest0-21swapper/108:05:111
121389951,2cyclictest0-21swapper/112:35:121
121389951,2cyclictest0-21swapper/110:00:111
121389951,2cyclictest0-21swapper/109:55:131
121389951,2cyclictest0-21swapper/108:55:121
121389951,2cyclictest0-21swapper/108:30:121
121389951,2cyclictest0-21swapper/107:55:121
121389951,2cyclictest0-21swapper/107:35:121
121389951,2cyclictest0-21swapper/107:15:121
121389950,5cyclictest0-21swapper/112:27:311
121389950,5cyclictest0-21swapper/110:37:571
121389950,0cyclictest0-21swapper/111:53:021
121349954,1cyclictest0-21swapper/010:29:100
121349950,5cyclictest0-21swapper/010:32:330
121349950,4cyclictest0-21swapper/011:45:150
121349950,4cyclictest0-21swapper/009:00:100
121349950,4cyclictest0-21swapper/008:00:110
121349950,4cyclictest0-21swapper/007:50:120
17858240,1sleep10-21swapper/110:16:551
121449944,0cyclictest0-21swapper/309:41:583
121449944,0cyclictest0-21swapper/309:35:253
121449943,1cyclictest2456-21irqstats10:25:163
121449942,2cyclictest30897-21ssh11:26:113
121449941,3cyclictest814-21snmpd09:21:093
121449941,3cyclictest26662-21awk11:40:153
121449940,4cyclictest8861-21irqstats12:35:153
121449940,4cyclictest7821-21apt-get08:05:113
121449940,4cyclictest22065-21ssh11:05:573
121449940,4cyclictest0-21swapper/312:25:093
121449940,4cyclictest0-21swapper/312:15:113
121449940,4cyclictest0-21swapper/311:55:133
121449940,4cyclictest0-21swapper/311:35:323
121449940,4cyclictest0-21swapper/311:00:113
121449940,4cyclictest0-21swapper/310:45:023
121449940,4cyclictest0-21swapper/310:39:473
121449940,4cyclictest0-21swapper/310:20:103
121449940,4cyclictest0-21swapper/309:26:323
121449940,3cyclictest7363-21sh09:55:553
121449940,3cyclictest6625-21ntp_states11:30:163
121449940,3cyclictest6549-21ssh12:02:093
121449940,3cyclictest3967-21irqstats10:10:163
121449940,3cyclictest31319-21diskstats10:55:143
121449940,3cyclictest30296-21cat07:45:013
121449940,3cyclictest2831-21apt-get09:00:103
121449940,3cyclictest21018-21ssh11:21:233
121449940,3cyclictest17172-21ssh12:07:273
121449940,3cyclictest16069-21ssh10:00:163
121449940,3cyclictest15783-21sh09:45:013
121449940,3cyclictest14094-21users07:10:213
121449940,3cyclictest11232-21ntp_states12:20:173
121449940,3cyclictest10659-21ssh11:16:183
121449940,3cyclictest0-21swapper/308:25:093
121449940,1cyclictest21814-21/usr/sbin/munin12:10:123
121439944,0cyclictest31-21ksoftirqd/212:35:112
121439944,0cyclictest31-21ksoftirqd/211:50:192
121439944,0cyclictest31-21ksoftirqd/211:40:122
121439944,0cyclictest31-21ksoftirqd/211:00:112
121439944,0cyclictest31-21ksoftirqd/210:55:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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