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2026-08-20 - 09:57
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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 Aug 20, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20522200183,12sleep30-21swapper/319:06:213
23112190173,12sleep00-21swapper/019:09:430
20552172157,11sleep10-21swapper/119:06:231
2051210688,13sleep20-21swapper/219:06:202
283332460,0sleep10-21swapper/121:40:191
325172440,0sleep00-21swapper/000:10:160
325172440,0sleep00-21swapper/000:10:160
226022150,0sleep10-21swapper/120:50:181
194982110,0sleep00-21swapper/023:14:590
165172110,0sleep20-21swapper/223:29:552
25089991,4cyclictest28067-21cron21:05:000
25089991,4cyclictest28067-21cron21:05:000
25089991,4cyclictest10911-21munin-run00:00:010
25189960,5cyclictest0-21swapper/321:40:123
25099962,3cyclictest0-21swapper/120:20:111
25099961,3cyclictest0-21swapper/122:50:121
25089960,5cyclictest0-21swapper/019:30:090
25189955,0cyclictest17053-21kworker/3:023:22:203
25189955,0cyclictest17053-21kworker/3:022:59:563
25189955,0cyclictest17053-21kworker/3:020:45:353
25189955,0cyclictest17053-21kworker/3:020:34:233
25189955,0cyclictest17053-21kworker/3:020:23:103
25189955,0cyclictest17053-21kworker/3:019:27:133
25189954,1cyclictest31005-21ssh23:53:263
25189952,3cyclictest802-21snmpd00:31:033
25189951,3cyclictest5296-21cat22:35:013
25189950,5cyclictest24613-21ssh22:11:173
25189950,5cyclictest0-21swapper/300:21:393
25189950,4cyclictest0-21swapper/321:15:123
25189950,4cyclictest0-21swapper/320:50:103
25129955,0cyclictest0-21swapper/221:52:372
25129954,1cyclictest11508-21diskstats20:30:122
25129950,5cyclictest0-21swapper/222:51:412
25129950,5cyclictest0-21swapper/221:34:252
25129950,5cyclictest0-21swapper/200:15:102
25129950,0cyclictest0-21swapper/223:44:302
25129950,0cyclictest0-21swapper/221:58:002
25099952,2cyclictest0-21swapper/122:10:121
25099952,2cyclictest0-21swapper/120:25:121
25099951,3cyclictest0-21swapper/122:35:131
25099951,3cyclictest0-21swapper/120:00:141
25099951,3cyclictest0-21swapper/100:35:111
25099951,3cyclictest0-21swapper/100:20:111
25099951,2cyclictest0-21swapper/123:35:101
25099951,2cyclictest0-21swapper/123:15:101
25099951,2cyclictest0-21swapper/121:30:131
25099950,5cyclictest0-21swapper/123:54:531
25099950,5cyclictest0-21swapper/100:15:591
25089954,1cyclictest9691-21munin-run23:10:010
25089952,3cyclictest802-21snmpd21:43:270
25089950,5cyclictest13445-21/usr/sbin/munin20:35:140
25089950,5cyclictest0-21swapper/023:34:160
25089950,5cyclictest0-21swapper/023:01:140
25089950,5cyclictest0-21swapper/022:49:530
25089950,4cyclictest28496-21apt-get21:05:010
25089950,4cyclictest11732-21ssh00:16:000
25089950,4cyclictest0-21swapper/021:25:130
25089950,0cyclictest0-21swapper/000:23:360
4958240,0sleep20-21swapper/200:12:582
4958240,0sleep20-21swapper/200:12:572
25189944,0cyclictest17053-21kworker/3:019:38:243
25189944,0cyclictest0-21swapper/322:53:293
25189944,0cyclictest0-21swapper/322:36:103
25189944,0cyclictest0-21swapper/321:20:043
25189944,0cyclictest0-21swapper/300:35:293
25189944,0cyclictest0-21swapper/300:10:273
25189944,0cyclictest0-21swapper/300:10:273
25189943,1cyclictest21800-21tr00:05:123
25189943,1cyclictest0-21swapper/320:00:023
25189942,2cyclictest20379-21ssh22:25:193
25189942,1cyclictest802-21snmpd21:11:303
25189942,1cyclictest32684-21ssh22:15:183
25189941,3cyclictest18202-21ssh22:40:443
25189940,4cyclictest31330-21ssh23:36:473
25189940,4cyclictest30754-21diskmemload21:57:213
25189940,4cyclictest18653-21apt-get19:40:113
25189940,4cyclictest17009-21perl21:35:153
25189940,4cyclictest0-21swapper/323:47:143
25189940,4cyclictest0-21swapper/323:25:113
25189940,4cyclictest0-21swapper/323:00:113
25189940,4cyclictest0-21swapper/322:46:043
25189940,4cyclictest0-21swapper/322:21:413
25189940,4cyclictest0-21swapper/322:05:123
25189940,4cyclictest0-21swapper/321:50:113
25189940,4cyclictest0-21swapper/321:30:503
25189940,4cyclictest0-21swapper/321:25:473
25189940,4cyclictest0-21swapper/321:00:113
25189940,4cyclictest0-21swapper/321:00:103
25189940,4cyclictest0-21swapper/320:15:053
25189940,4cyclictest0-21swapper/319:15:113
25189940,4cyclictest0-21swapper/300:26:293
25189940,3cyclictest9164-21rm00:15:123
25189940,3cyclictest8942-21ssh22:03:583
25189940,3cyclictest3714-21ssh21:45:043
25189940,3cyclictest2863-21ssh23:05:383
25189940,3cyclictest16928-21ssh23:30:023
25189940,3cyclictest1550-21apt-get23:55:123
25189940,3cyclictest13150-21ssh23:44:363
25189940,3cyclictest12226-21perl00:00:163
25129944,0cyclictest0-21swapper/223:45:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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