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2026-04-02 - 08:01
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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 Apr 02, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116842205190,11sleep10-21swapper/119:08:441
117082202185,12sleep00-21swapper/019:09:020
95602186169,12sleep30-21swapper/319:05:053
11680211597,13sleep20-21swapper/219:08:412
300142650,0sleep30-21swapper/322:07:243
5262510,0sleep30-21swapper/323:28:083
278422450,0sleep10-21swapper/121:35:121
54962420,0sleep30-21swapper/322:27:033
34922420,0sleep20-21swapper/200:17:152
186752420,0sleep30-21swapper/322:33:513
119679981,1cyclictest0-21swapper/119:45:121
119679980,2cyclictest0-21swapper/121:25:111
119669981,3cyclictest2826-21munin-run21:00:010
119679971,2cyclictest0-21swapper/120:15:111
119679971,1cyclictest0-21swapper/122:15:131
119679971,1cyclictest0-21swapper/122:00:121
119679971,1cyclictest0-21swapper/100:35:111
119669971,3cyclictest11850irq/131-ahci[0021:15:000
119739965,1cyclictest21429-21expr00:10:113
119679960,2cyclictest29334-21chrt23:58:161
119679960,2cyclictest23988-21chrt21:33:031
119679960,1cyclictest0-21swapper/122:55:111
119679960,0cyclictest0-21swapper/123:23:441
119669960,3cyclictest12102-21basename22:15:010
119739955,0cyclictest0-21swapper/300:20:043
119739954,1cyclictest0-21swapper/321:11:393
119739952,3cyclictest802-21snmpd22:10:163
119739952,2cyclictest0-21swapper/321:30:133
119739952,2cyclictest0-21swapper/319:40:113
119739951,2cyclictest0-21swapper/323:00:103
119739951,2cyclictest0-21swapper/320:10:103
119739951,1cyclictest0-21swapper/300:04:383
119739950,5cyclictest0-21swapper/322:54:493
119739950,4cyclictest28065-21sh23:10:063
119699955,0cyclictest0-21swapper/223:34:012
119699955,0cyclictest0-21swapper/223:15:592
119699955,0cyclictest0-21swapper/200:24:132
119699950,5cyclictest0-21swapper/222:25:472
119699950,5cyclictest0-21swapper/221:19:262
119699950,5cyclictest0-21swapper/220:20:122
119699950,5cyclictest0-21swapper/219:55:022
119679952,2cyclictest0-21swapper/119:15:111
119679951,3cyclictest0-21swapper/119:10:121
119679951,2cyclictest0-21swapper/119:40:101
119679951,2cyclictest0-21swapper/100:10:081
119679951,1cyclictest0-21swapper/121:15:131
119679950,2cyclictest17368-21chrt23:04:561
119669952,2cyclictest8159-21ssh00:19:590
119669950,5cyclictest0-21swapper/023:42:080
119669950,5cyclictest0-21swapper/023:32:220
119669950,5cyclictest0-21swapper/022:41:010
119669950,0cyclictest7769-21diskmemload23:18:510
119739943,1cyclictest14377-21tr23:35:113
119739942,1cyclictest19044-21ssh23:53:093
119739942,1cyclictest14836-21users20:15:203
119739941,3cyclictest20158-21sh23:21:303
119739941,3cyclictest17884-21sh23:05:063
119739941,2cyclictest0-21swapper/321:35:123
119739941,2cyclictest0-21swapper/320:45:093
119739941,2cyclictest0-21swapper/319:50:013
119739941,2cyclictest0-21swapper/319:15:113
119739941,2cyclictest0-21swapper/300:25:083
119739941,1cyclictest0-21swapper/322:20:133
119739940,4cyclictest1242-21ssh00:15:513
119739940,4cyclictest0-21swapper/323:15:133
119739940,4cyclictest0-21swapper/322:45:113
119739940,4cyclictest0-21swapper/322:35:103
119739940,4cyclictest0-21swapper/321:55:123
119739940,4cyclictest0-21swapper/321:26:413
119739940,4cyclictest0-21swapper/321:15:133
119739940,4cyclictest0-21swapper/321:05:173
119739940,4cyclictest0-21swapper/320:30:113
119739940,4cyclictest0-21swapper/320:30:113
119739940,4cyclictest0-21swapper/319:55:123
119739940,3cyclictest6216-21rm23:30:203
119739940,3cyclictest5211-21sh23:45:543
119739940,3cyclictest5211-21sh23:45:543
119739940,3cyclictest3808-21sh22:41:553
119739940,3cyclictest29231-21ssh23:58:123
119739940,3cyclictest25911-21ntp_states23:40:163
119739940,3cyclictest1658-21ssh21:22:043
119739940,3cyclictest15663-21sh21:45:023
119739940,3cyclictest14590-21/usr/sbin/munin22:00:133
119739940,3cyclictest123192sleep322:15:023
119739940,1cyclictest30070-21/usr/sbin/munin22:55:153
119739940,1cyclictest26930-21perl21:50:143
119739940,1cyclictest25407-21/usr/sbin/munin19:35:183
119739940,1cyclictest17998-21/usr/sbin/munin19:20:183
119699944,0cyclictest31-21ksoftirqd/219:15:012
119699943,1cyclictest23925-21cut20:35:152
119699943,1cyclictest0-21swapper/223:29:312
119699942,2cyclictest28550-21ssh23:57:472
119699941,2cyclictest0-21swapper/219:25:112
119699940,4cyclictest2914-21diskstats22:10:132
119699940,4cyclictest0-21swapper/223:35:292
119699940,4cyclictest0-21swapper/222:55:172
119699940,4cyclictest0-21swapper/222:20:122
119699940,4cyclictest0-21swapper/221:20:012
119699940,4cyclictest0-21swapper/221:00:112
119699940,3cyclictest0-21swapper/222:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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