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2026-03-14 - 09:54
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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 Sat Mar 14, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6412198172,21sleep30-21swapper/319:07:373
6532189172,12sleep00-21swapper/019:07:470
7712187172,10sleep10-21swapper/119:09:161
5212184167,12sleep20-21swapper/219:06:082
17962640,0sleep30-21swapper/319:10:133
317862480,0sleep10-21swapper/100:20:171
318062450,1sleep331807-21timerandwakeup21:10:203
113482450,1sleep20-21swapper/223:22:382
249332440,0sleep10-21swapper/121:39:041
10179993,3cyclictest6625-21munin-run19:20:020
10179990,5cyclictest5012-21munin-run23:20:000
10179981,6cyclictest0-21swapper/021:00:100
10179981,3cyclictest30546-21perf22:45:010
10179970,7cyclictest12658-21ssh21:32:510
26812260,0sleep00-21swapper/000:18:090
10249961,3cyclictest0-21swapper/121:10:111
10179960,6cyclictest0-21swapper/022:54:020
10179960,6cyclictest0-21swapper/021:35:240
10179960,6cyclictest0-21swapper/000:09:020
10179960,1cyclictest9933-21ssh23:37:540
10179960,1cyclictest8110-21ssh22:17:540
10179960,1cyclictest27013-21rm23:14:540
10179960,1cyclictest2676-21ssh21:12:120
10179960,1cyclictest20874-21ssh22:24:180
10179960,1cyclictest18141-21ssh22:38:430
10179960,1cyclictest10824-21ssh00:25:380
6541250,0sleep20-21swapper/223:52:002
10339955,0cyclictest29454-21diskmemload23:08:323
10339955,0cyclictest0-21swapper/323:33:073
10339950,5cyclictest1502-21/usr/sbin/munin22:30:153
10339950,5cyclictest0-21swapper/323:10:103
10339950,5cyclictest0-21swapper/322:20:303
10339950,2cyclictest3059-21needreboot23:50:163
10289955,0cyclictest31-21ksoftirqd/222:40:012
10289955,0cyclictest31-21ksoftirqd/221:10:112
10289955,0cyclictest0-21swapper/221:35:092
10289954,1cyclictest0-21swapper/223:02:532
10289950,5cyclictest17403-21ssh23:57:262
10289950,5cyclictest0-21swapper/223:46:582
10289950,5cyclictest0-21swapper/222:28:592
10289950,0cyclictest4564-21ssh21:29:122
10249951,2cyclictest0-21swapper/119:30:101
10249951,2cyclictest0-21swapper/119:15:101
10179952,3cyclictest0-21swapper/022:30:110
10179952,3cyclictest0-21swapper/022:10:190
10179952,3cyclictest0-21swapper/021:51:020
10179952,3cyclictest0-21swapper/021:25:110
10179952,3cyclictest0-21swapper/019:45:110
10179951,3cyclictest814-21snmpd23:40:010
10179951,2cyclictest0-21swapper/000:20:140
10179950,5cyclictest32643-21ssh23:01:030
10179950,5cyclictest29396-21ssh21:40:320
10179950,5cyclictest0-21swapper/023:50:430
10179950,5cyclictest0-21swapper/023:47:580
10179950,5cyclictest0-21swapper/023:30:070
10179950,5cyclictest0-21swapper/023:26:190
10179950,5cyclictest0-21swapper/023:20:500
10179950,5cyclictest0-21swapper/023:08:430
10179950,5cyclictest0-21swapper/022:55:340
10179950,5cyclictest0-21swapper/022:47:460
10179950,5cyclictest0-21swapper/022:05:030
10179950,5cyclictest0-21swapper/021:55:140
10179950,5cyclictest0-21swapper/021:45:150
10179950,5cyclictest0-21swapper/021:21:390
10179950,5cyclictest0-21swapper/021:15:040
10179950,5cyclictest0-21swapper/020:49:230
10179950,5cyclictest0-21swapper/020:40:030
10179950,5cyclictest0-21swapper/020:27:220
10179950,5cyclictest0-21swapper/020:20:190
10179950,5cyclictest0-21swapper/020:17:230
10179950,5cyclictest0-21swapper/020:08:220
10179950,5cyclictest0-21swapper/020:00:180
10179950,5cyclictest0-21swapper/019:25:220
10179950,5cyclictest0-21swapper/019:11:470
10179950,5cyclictest0-21swapper/000:37:020
10179950,5cyclictest0-21swapper/000:30:140
10179950,5cyclictest0-21swapper/000:10:020
10179950,1cyclictest0-21swapper/023:55:230
10179950,0cyclictest0-21swapper/022:26:580
10179950,0cyclictest0-21swapper/022:02:220
10179950,0cyclictest0-21swapper/019:30:100
10179950,0cyclictest0-21swapper/000:00:180
7261240,0sleep10-21swapper/122:01:311
10339944,0cyclictest11540-21kworker/3:200:31:073
10339944,0cyclictest0-21swapper/323:15:123
10339943,1cyclictest3626-21kworker/3:022:27:593
10339943,1cyclictest27309-21expr20:00:103
10339943,1cyclictest17444-21diskstats20:45:123
10339942,1cyclictest7021-21ssh21:30:123
10339941,3cyclictest814-21snmpd22:45:523
10339941,3cyclictest0-21swapper/323:59:333
10339941,2cyclictest0-21swapper/322:05:103
10339941,1cyclictest0-21swapper/321:35:123
10339941,1cyclictest0-21swapper/320:35:103
10339941,1cyclictest0-21swapper/319:30:103
10339940,4cyclictest14268-21apt-get19:35:113
10339940,4cyclictest10063-21diskmemload00:10:103
10339940,4cyclictest0-21swapper/323:46:573
10339940,4cyclictest0-21swapper/323:40:113
10339940,4cyclictest0-21swapper/323:29:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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