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2026-06-29 - 07:21
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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 Jun 29, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138992199184,11sleep10-21swapper/119:08:401
136892186168,13sleep00-21swapper/019:05:590
136822183165,13sleep30-21swapper/319:05:543
13812210992,13sleep20-21swapper/219:07:322
216822510,0sleep221683-21gltestperf21:15:162
273092420,0sleep30-21swapper/322:36:593
16082420,0sleep30-21swapper/300:16:003
167382120,0sleep10-21swapper/123:51:271
239742100,0sleep00-21swapper/000:11:010
109232100,0sleep00-21swapper/021:41:200
2827290,0sleep10-21swapper/100:00:251
19551290,0sleep10-21swapper/122:49:391
141789971,6cyclictest0-21swapper/222:10:122
141789960,6cyclictest0-21swapper/223:50:122
141739960,5cyclictest0-21swapper/023:05:110
141739960,3cyclictest16528-21apt-get19:15:010
141829955,0cyclictest0-21swapper/321:24:573
141829950,5cyclictest8585-21apt-get23:00:023
141829950,5cyclictest17713-21apt-get19:15:023
141829950,5cyclictest0-21swapper/323:33:253
141829950,5cyclictest0-21swapper/321:47:223
141829950,5cyclictest0-21swapper/321:47:213
141829950,5cyclictest0-21swapper/319:35:223
141829950,5cyclictest0-21swapper/319:10:133
141829950,4cyclictest25710-21awk22:05:023
141829950,4cyclictest0-21swapper/319:50:133
141829950,3cyclictest0-21swapper/322:09:563
141829950,0cyclictest0-21swapper/322:17:023
141789955,0cyclictest0-21swapper/222:41:582
141789951,2cyclictest0-21swapper/223:35:142
141789951,2cyclictest0-21swapper/220:45:112
141789950,5cyclictest0-21swapper/223:19:472
141789950,5cyclictest0-21swapper/223:14:592
141789950,4cyclictest0-21swapper/200:15:122
141749950,5cyclictest0-21swapper/122:43:011
141749950,5cyclictest0-21swapper/122:07:131
141739950,5cyclictest0-21swapper/022:28:250
141739950,5cyclictest0-21swapper/021:20:360
141739950,5cyclictest0-21swapper/020:25:010
141739950,5cyclictest0-21swapper/000:07:470
141739950,4cyclictest0-21swapper/021:35:130
141739950,1cyclictest17276-21readlink20:20:010
141739950,1cyclictest0-21swapper/021:10:020
22903240,0sleep10-21swapper/121:31:201
141829944,0cyclictest32619-21sh23:27:283
141829944,0cyclictest22692-21kworker/3:121:55:413
141829944,0cyclictest0-21swapper/323:16:063
141829944,0cyclictest0-21swapper/321:13:283
141829944,0cyclictest0-21swapper/300:25:133
141829943,1cyclictest27924-21/usr/sbin/munin21:50:163
141829943,1cyclictest27924-21/usr/sbin/munin21:50:163
141829943,1cyclictest22958-21/usr/sbin/munin23:55:133
141829942,1cyclictest5107-21/usr/sbin/munin19:55:173
141829942,1cyclictest0-21swapper/320:30:103
141829941,3cyclictest8343-21sh00:20:043
141829941,2cyclictest0-21swapper/322:25:133
141829941,2cyclictest0-21swapper/300:05:103
141829940,4cyclictest5238-21ssh21:39:073
141829940,4cyclictest16288-21ntp_states20:15:193
141829940,4cyclictest0-21swapper/323:47:073
141829940,4cyclictest0-21swapper/323:35:133
141829940,4cyclictest0-21swapper/323:21:223
141829940,4cyclictest0-21swapper/323:11:183
141829940,4cyclictest0-21swapper/322:50:393
141829940,4cyclictest0-21swapper/322:20:113
141829940,4cyclictest0-21swapper/321:31:523
141829940,4cyclictest0-21swapper/321:06:473
141829940,4cyclictest0-21swapper/320:57:353
141829940,4cyclictest0-21swapper/320:39:403
141829940,4cyclictest0-21swapper/320:10:133
141829940,4cyclictest0-21swapper/319:45:123
141829940,4cyclictest0-21swapper/300:35:123
141829940,4cyclictest0-21swapper/300:31:113
141829940,4cyclictest0-21swapper/300:11:153
141829940,3cyclictest8660-21ntpq21:40:193
141829940,3cyclictest32301-21ssh22:55:173
141829940,3cyclictest31969-21/usr/sbin/munin19:40:213
141829940,3cyclictest21450-21ntp_states20:25:173
141829940,3cyclictest20602-21seq19:20:153
141829940,3cyclictest18139-21ssh23:52:203
141829940,3cyclictest18042-21diskstats20:20:133
141829940,3cyclictest1714-21/usr/sbin/munin20:50:183
141829940,3cyclictest12984-21diskstats22:30:153
141829940,3cyclictest11395-21hddtemp_smartct22:45:143
141829940,3cyclictest0-21swapper/320:45:113
141829940,1cyclictest610-21/usr/sbin/munin00:00:133
141829940,0cyclictest0-21swapper/321:03:413
141789942,1cyclictest10452-21ssh21:10:082
141789942,1cyclictest0-21swapper/222:35:142
141789941,3cyclictest802-21snmpd21:55:192
141789941,2cyclictest0-21swapper/219:35:122
141789940,4cyclictest8190-21hddtemp_smartct21:40:152
141789940,4cyclictest19658-21perl00:25:152
141789940,4cyclictest0-21swapper/223:55:122
141789940,4cyclictest0-21swapper/223:40:112
141789940,4cyclictest0-21swapper/223:06:392
141789940,4cyclictest0-21swapper/222:55:112
141789940,4cyclictest0-21swapper/222:45:112
141789940,4cyclictest0-21swapper/222:25:122
141789940,4cyclictest0-21swapper/222:05:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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