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2026-04-13 - 20:16
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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 Apr 13, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313082207192,11sleep10-21swapper/107:08:481
310632196180,12sleep30-21swapper/307:05:373
312822186170,12sleep00-21swapper/007:08:270
313212118102,12sleep20-21swapper/207:08:572
62732450,0sleep10-21swapper/111:05:201
295072450,0sleep10-21swapper/110:29:491
263672430,0sleep20-21swapper/211:15:172
238032430,0sleep10-21swapper/110:58:311
12992430,0sleep00-21swapper/009:44:320
177972420,0sleep30-21swapper/310:23:543
72532410,0sleep10-21swapper/109:30:561
309522410,0sleep30-21swapper/309:58:443
110752410,0sleep10-21swapper/110:20:161
3165199102,4cyclictest29231-21munin-run12:05:000
316519982,3cyclictest22497-21perf07:55:000
316519980,4cyclictest19649-21basename10:25:000
316519973,4cyclictest27445-21munin-run08:05:000
316519970,3cyclictest19771-21munin-run08:55:000
316699960,6cyclictest0-21swapper/209:51:572
316599963,1cyclictest0-21swapper/110:05:121
316599961,3cyclictest0-21swapper/110:30:141
316519960,6cyclictest27202-21diskmemload12:25:110
316519960,6cyclictest27202-21diskmemload12:25:110
316519960,3cyclictest470-21perf11:35:000
316519960,3cyclictest12332-21munin-run11:25:000
316779955,0cyclictest13526-21kworker/3:110:45:403
316779955,0cyclictest13526-21kworker/3:110:12:043
316779955,0cyclictest13526-21kworker/3:110:00:523
316779955,0cyclictest13526-21kworker/3:107:35:183
316779954,1cyclictest0-21swapper/309:26:413
316779952,2cyclictest5498-21/usr/sbin/munin12:25:173
316779952,2cyclictest5498-21/usr/sbin/munin12:25:173
316779951,1cyclictest0-21swapper/310:05:123
316779950,5cyclictest0-21swapper/310:51:573
316779950,5cyclictest0-21swapper/310:19:563
316779950,4cyclictest0-21swapper/310:40:003
316699955,0cyclictest0-21swapper/212:10:282
316699954,1cyclictest20401-21ssh11:12:332
316699952,3cyclictest31881-21ssh12:21:352
316699950,5cyclictest0-21swapper/210:31:492
316699950,5cyclictest0-21swapper/210:24:242
316699950,5cyclictest0-21swapper/209:17:192
316699950,5cyclictest0-21swapper/209:17:192
316699950,4cyclictest9450-21apt-get11:55:122
316699950,0cyclictest0-21swapper/211:53:352
316699950,0cyclictest0-21swapper/210:51:102
316699950,0cyclictest0-21swapper/209:10:382
316599951,3cyclictest0-21swapper/107:30:111
316519955,0cyclictest0-21swapper/010:57:130
316519950,5cyclictest0-21swapper/011:59:380
316519950,5cyclictest0-21swapper/010:16:200
316519950,5cyclictest0-21swapper/007:15:110
316519950,4cyclictest17092-21munin-run12:15:000
24745250,0sleep30-21swapper/310:26:543
32744240,0sleep00-21swapper/009:27:590
316779944,0cyclictest13526-21kworker/3:111:19:133
316779944,0cyclictest13526-21kworker/3:108:20:053
316779944,0cyclictest13526-21kworker/3:108:08:553
316779944,0cyclictest13526-21kworker/3:107:24:073
316779944,0cyclictest0-21swapper/311:55:583
316779943,1cyclictest7884-21tr07:25:123
316779942,1cyclictest31218-21perl10:30:163
316779941,1cyclictest0-21swapper/309:35:123
316779940,4cyclictest5093-21munin-run09:15:013
316779940,4cyclictest31895-21/usr/sbin/munin07:10:203
316779940,4cyclictest27658-21hddtemp_smartct11:00:143
316779940,4cyclictest0-21swapper/312:10:113
316779940,4cyclictest0-21swapper/311:50:123
316779940,4cyclictest0-21swapper/311:30:133
316779940,4cyclictest0-21swapper/309:50:143
316779940,4cyclictest0-21swapper/309:45:123
316779940,4cyclictest0-21swapper/309:05:123
316779940,4cyclictest0-21swapper/307:40:113
316779940,3cyclictest9050-21sh11:06:503
316779940,3cyclictest8323-21perl08:30:163
316779940,3cyclictest5310-21rm09:15:013
316779940,3cyclictest5310-21rm09:15:013
316779940,3cyclictest3877-21wc11:20:143
316779940,3cyclictest31159-21/usr/sbin/munin12:05:163
316779940,3cyclictest28716-21hddtemp_smartct12:20:153
316779940,3cyclictest28023-21sh11:48:023
316779940,3cyclictest23312-21ssh10:42:053
316779940,3cyclictest22668-21sh12:17:123
316779940,3cyclictest22075-21uptime07:50:203
316779940,3cyclictest1937-21munin-node07:15:013
316779940,3cyclictest16163-21df12:30:133
316779940,3cyclictest14469-21sh11:10:033
316779940,3cyclictest13675-21memory08:40:153
316779940,3cyclictest11185-21memory08:35:153
316779940,2cyclictest44852sleep311:36:123
316779940,2cyclictest0-21swapper/310:59:273
316779940,1cyclictest25198-21/usr/sbin/munin08:00:203
316779940,1cyclictest24804-21/usr/sbin/munin09:40:143
316779940,1cyclictest15050-21/usr/sbin/munin08:45:163
316779940,1cyclictest13413-21diskstats11:25:133
316779940,1cyclictest13043-21expr11:40:203
316699944,0cyclictest0-21swapper/210:00:062
316699943,1cyclictest381-21tr08:15:132
316699943,0cyclictest0-21swapper/209:25:132
316699942,1cyclictest0-21swapper/210:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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