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2026-06-21 - 08:22
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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 Sun Jun 21, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148192239224,11sleep10-21swapper/119:05:031
169262192175,12sleep00-21swapper/019:08:270
148262189171,13sleep30-21swapper/319:05:083
168962170152,13sleep20-21swapper/219:08:042
272042510,0sleep00-21swapper/022:04:130
315962470,0sleep10-21swapper/100:29:581
304622470,0sleep20-21swapper/221:34:082
190462460,0sleep10-21swapper/100:07:121
132182450,0sleep10-21swapper/122:45:051
235162430,0sleep10-21swapper/121:45:521
317462410,0sleep3381rcuc/300:30:013
74262110,0sleep10-21swapper/121:54:361
124642110,0sleep00-21swapper/023:00:140
5469290,0sleep20-21swapper/222:25:122
172799980,4cyclictest31646-21munin-run00:30:010
172799980,4cyclictest17492-21awk23:35:000
172799971,3cyclictest32704-21idleruntime-cro20:45:000
172799971,3cyclictest10380-21perf21:05:000
173069960,6cyclictest0-21swapper/323:51:143
172979965,1cyclictest15018-21ssh00:37:172
172799960,6cyclictest0-21swapper/021:14:410
173069955,0cyclictest18161-21kworker/3:121:55:163
173069954,1cyclictest0-21swapper/323:31:283
173069953,2cyclictest0-21swapper/319:40:173
173069950,5cyclictest0-21swapper/323:00:123
173069950,5cyclictest0-21swapper/322:44:283
173069950,4cyclictest30448-21apt-get20:40:103
173069950,4cyclictest1485-21cat00:15:003
173069950,4cyclictest0-21swapper/320:00:103
173069950,3cyclictest0-21swapper/321:43:463
173069950,0cyclictest0-21swapper/321:53:323
172979954,1cyclictest31-21ksoftirqd/219:15:002
172979951,2cyclictest0-21swapper/221:05:102
172979950,5cyclictest0-21swapper/223:25:122
172979950,5cyclictest0-21swapper/223:24:052
172979950,4cyclictest1453-21ssh22:07:012
172979950,4cyclictest0-21swapper/222:10:122
172879950,5cyclictest0-21swapper/122:50:151
172879950,5cyclictest0-21swapper/121:33:001
172799950,5cyclictest0-21swapper/023:20:320
172799950,5cyclictest0-21swapper/022:33:240
172799950,4cyclictest29090-21ssh22:05:140
13574250,0sleep00-21swapper/022:29:180
173069944,0cyclictest0-21swapper/323:23:103
173069943,1cyclictest0-21swapper/300:36:303
173069942,1cyclictest10589-21/usr/sbin/munin21:05:173
173069941,2cyclictest0-21swapper/320:55:113
173069940,4cyclictest518-21perl00:30:143
173069940,4cyclictest29083-21apt-get22:05:143
173069940,4cyclictest13943-21apt-get00:05:113
173069940,4cyclictest0-21swapper/323:45:103
173069940,4cyclictest0-21swapper/323:35:113
173069940,4cyclictest0-21swapper/323:25:123
173069940,4cyclictest0-21swapper/323:15:523
173069940,4cyclictest0-21swapper/323:00:003
173069940,4cyclictest0-21swapper/322:10:133
173069940,4cyclictest0-21swapper/321:45:133
173069940,4cyclictest0-21swapper/321:38:473
173069940,4cyclictest0-21swapper/321:23:193
173069940,4cyclictest0-21swapper/319:25:123
173069940,4cyclictest0-21swapper/319:10:113
173069940,4cyclictest0-21swapper/300:03:493
173069940,3cyclictest26013-21diskstats20:30:103
173069940,3cyclictest25090-21cut22:35:013
173069940,3cyclictest25055-21grep21:15:193
173069940,3cyclictest22149-21ssh22:49:273
173069940,3cyclictest21607-21hddtemp_smartct19:15:153
173069940,3cyclictest14949-21users20:05:193
173069940,3cyclictest0-21swapper/321:00:103
173069940,1cyclictest5615-21df22:25:123
173069940,1cyclictest2961-21/usr/sbin/munin20:50:193
173069940,1cyclictest27952-21/usr/sbin/munin20:35:113
173069940,1cyclictest20547-21/usr/sbin/munin20:20:173
173069940,1cyclictest20306-21munin-run20:20:003
173069940,1cyclictest17127-21tr22:15:113
173069940,1cyclictest13352-21/usr/sbin/munin21:10:213
173069940,1cyclictest12073-21/usr/sbin/munin00:20:173
173069940,0cyclictest0-21swapper/323:59:333
173069940,0cyclictest0-21swapper/322:37:213
173069940,0cyclictest0-21swapper/321:27:473
172979944,0cyclictest0-21swapper/223:34:162
172979944,0cyclictest0-21swapper/221:45:272
172979944,0cyclictest0-21swapper/200:26:302
172979944,0cyclictest0-21swapper/200:02:562
172979942,1cyclictest802-21snmpd21:13:102
172979942,1cyclictest32444-21tr00:30:122
172979941,3cyclictest27607-21ssh22:35:242
172979941,2cyclictest0-21swapper/220:00:112
172979941,1cyclictest6598-21ssh22:41:092
172979941,1cyclictest0-21swapper/200:10:132
172979940,4cyclictest12835-21diskmemload22:45:122
172979940,4cyclictest0-21swapper/223:45:102
172979940,4cyclictest0-21swapper/223:40:122
172979940,4cyclictest0-21swapper/223:35:102
172979940,4cyclictest0-21swapper/223:16:462
172979940,4cyclictest0-21swapper/223:10:102
172979940,4cyclictest0-21swapper/223:05:112
172979940,4cyclictest0-21swapper/223:00:102
172979940,4cyclictest0-21swapper/222:50:052
172979940,4cyclictest0-21swapper/222:00:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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