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2026-04-08 - 18:40
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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 Wed Apr 08, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256932194179,10sleep10-21swapper/107:08:431
256402193174,14sleep00-21swapper/007:08:030
255862191175,12sleep30-21swapper/307:07:253
254732172156,12sleep20-21swapper/207:05:552
283092450,0sleep10-21swapper/112:06:561
234852450,0sleep10-21swapper/111:00:461
43502440,0sleep00-21swapper/011:07:430
205742430,0sleep10-21swapper/109:05:171
309892420,0sleep00-21swapper/009:14:210
91372110,0sleep10-21swapper/109:19:301
259469992,3cyclictest29962-21nscd10:20:010
259469982,3cyclictest1645-21perf07:25:020
259469981,3cyclictest1800-21perf08:30:000
259479961,2cyclictest0-21swapper/109:35:121
259469960,3cyclictest28985-21munin-run09:45:020
7543250,0sleep10-21swapper/111:56:391
259609955,0cyclictest7873-21kworker/3:110:13:123
259609951,3cyclictest0-21swapper/309:15:123
259609951,2cyclictest0-21swapper/307:40:113
259609950,5cyclictest0-21swapper/312:15:383
259609950,5cyclictest0-21swapper/311:30:593
259609950,5cyclictest0-21swapper/311:21:043
259609950,4cyclictest0-21swapper/310:55:103
259609950,4cyclictest0-21swapper/310:50:103
259609950,4cyclictest0-21swapper/309:40:123
259559950,5cyclictest0-21swapper/212:23:422
259559950,5cyclictest0-21swapper/211:43:242
259559950,5cyclictest0-21swapper/210:35:272
259559950,5cyclictest0-21swapper/210:24:592
259479952,2cyclictest0-21swapper/109:55:111
259479951,3cyclictest0-21swapper/111:50:111
259479951,2cyclictest0-21swapper/112:15:101
259479951,2cyclictest0-21swapper/111:15:101
259479951,2cyclictest0-21swapper/109:10:111
259479951,2cyclictest0-21swapper/108:45:101
259479951,2cyclictest0-21swapper/107:30:101
259479950,5cyclictest0-21swapper/111:23:461
259479950,5cyclictest0-21swapper/109:52:051
259469955,0cyclictest0-21swapper/011:26:120
259469950,5cyclictest27805-21ssh10:00:110
259469950,5cyclictest0-21swapper/012:30:110
259469950,4cyclictest7308-21ssh09:50:120
259469950,4cyclictest15918-21df_inode11:45:120
259469950,4cyclictest0-21swapper/009:20:110
4597240,3sleep04627-21ssh12:11:040
259609944,0cyclictest7873-21kworker/3:110:02:003
259609944,0cyclictest7873-21kworker/3:109:28:253
259609944,0cyclictest7873-21kworker/3:109:06:023
259609944,0cyclictest7873-21kworker/3:107:47:393
259609944,0cyclictest2225-21ssh12:25:493
259609944,0cyclictest0-21swapper/310:38:103
259609944,0cyclictest0-21swapper/309:56:153
259609943,1cyclictest9693-21cpuspeed08:45:123
259609943,1cyclictest31254-21sed08:20:203
259609942,1cyclictest31306-21cron07:17:013
259609941,2cyclictest0-21swapper/312:30:113
259609941,2cyclictest0-21swapper/309:10:123
259609941,2cyclictest0-21swapper/308:10:113
259609941,2cyclictest0-21swapper/307:55:103
259609941,2cyclictest0-21swapper/307:25:123
259609941,2cyclictest0-21swapper/307:10:113
259609941,1cyclictest0-21swapper/311:50:103
259609940,4cyclictest7039-21/usr/sbin/munin11:25:193
259609940,4cyclictest30764-21ssh11:05:083
259609940,4cyclictest30399-21hddtemp_smartct09:45:153
259609940,4cyclictest15014-21hddtemp_smartct10:25:143
259609940,4cyclictest0-21swapper/312:35:133
259609940,4cyclictest0-21swapper/312:10:103
259609940,4cyclictest0-21swapper/312:00:053
259609940,4cyclictest0-21swapper/311:55:103
259609940,4cyclictest0-21swapper/311:10:123
259609940,4cyclictest0-21swapper/310:40:113
259609940,4cyclictest0-21swapper/310:20:123
259609940,4cyclictest0-21swapper/310:05:523
259609940,4cyclictest0-21swapper/309:35:173
259609940,4cyclictest0-21swapper/309:30:113
259609940,4cyclictest0-21swapper/308:15:013
259609940,3cyclictest9240-21sed09:50:213
259609940,3cyclictest3780-21sed08:30:193
259609940,3cyclictest32501-21diskstats08:25:133
259609940,3cyclictest27291-21sh10:46:593
259609940,3cyclictest24483-21/usr/sbin/munin10:30:123
259609940,1cyclictest5188-21/usr/sbin/munin11:40:143
259609940,1cyclictest27470-21/usr/sbin/munin11:35:163
259609940,1cyclictest23620-21/usr/sbin/munin12:05:143
259609940,1cyclictest22564-21sort12:20:133
259609940,1cyclictest20670-21/usr/sbin/munin11:00:133
259609940,1cyclictest18142-21ntp_states09:00:173
259609940,1cyclictest14382-21/usr/sbin/munin08:55:153
259609940,1cyclictest11914-21/usr/sbin/munin08:50:143
259609940,1cyclictest0-21swapper/310:15:113
259559944,0cyclictest0-21swapper/211:57:132
259559944,0cyclictest0-21swapper/210:40:412
259559944,0cyclictest0-21swapper/209:15:252
259559942,1cyclictest18999-21ssh11:15:112
259559942,1cyclictest14178-21latency_hist07:50:012
259559941,2cyclictest0-21swapper/207:20:102
259559941,1cyclictest0-21swapper/208:05:102
259559940,4cyclictest6171-21ssh12:28:172
259559940,4cyclictest27350-21ntp_states07:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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