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2025-12-18 - 01:23
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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 Dec 17, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
75272203186,12sleep10-21swapper/107:06:551
75192198180,13sleep30-21swapper/307:06:503
75162186169,12sleep00-21swapper/007:06:460
7666210487,12sleep20-21swapper/207:08:402
79259982,3cyclictest16062-21perf11:45:010
79399962,2cyclictest0-21swapper/311:15:113
79399961,3cyclictest0-21swapper/310:05:113
79399960,5cyclictest31249-21apt-get09:00:033
79259962,4cyclictest23414-21munin-run08:45:000
79259960,3cyclictest8675-21munin-run10:25:010
79259960,3cyclictest28630-21basename12:10:010
79399951,3cyclictest0-21swapper/311:00:123
79399951,2cyclictest0-21swapper/308:40:103
79399951,1cyclictest0-21swapper/309:35:123
79399950,5cyclictest28880-21apt-get11:05:023
79399950,4cyclictest0-21swapper/311:10:103
79399950,4cyclictest0-21swapper/308:15:123
79399950,3cyclictest0-21swapper/311:35:113
79349951,4cyclictest0-21swapper/211:05:112
79349950,5cyclictest0-21swapper/210:20:192
79349950,5cyclictest0-21swapper/207:55:122
79269952,2cyclictest0-21swapper/109:30:121
79259951,4cyclictest13494-21cron08:25:000
79259950,5cyclictest0-21swapper/011:08:340
79259950,5cyclictest0-21swapper/010:35:250
79259950,1cyclictest3852-21/usr/sbin/munin12:25:190
21578250,0sleep10-21swapper/107:35:131
79399944,0cyclictest15434-21kworker/3:109:46:333
79399944,0cyclictest15434-21kworker/3:109:12:593
79399943,1cyclictest24692-21wc08:45:153
79399941,2cyclictest758-21runrttasks08:35:153
79399941,2cyclictest0-21swapper/311:55:103
79399941,2cyclictest0-21swapper/311:20:123
79399941,1cyclictest0-21swapper/310:50:103
79399940,4cyclictest11293-21apt-get07:15:113
79399940,4cyclictest0-21swapper/312:22:083
79399940,4cyclictest0-21swapper/311:45:113
79399940,4cyclictest0-21swapper/311:40:113
79399940,4cyclictest0-21swapper/310:15:123
79399940,4cyclictest0-21swapper/309:50:103
79399940,4cyclictest0-21swapper/309:25:123
79399940,4cyclictest0-21swapper/309:25:123
79399940,4cyclictest0-21swapper/309:15:543
79399940,4cyclictest0-21swapper/309:05:123
79399940,4cyclictest0-21swapper/308:00:173
79399940,4cyclictest0-21swapper/307:10:183
79399940,3cyclictest9645-21tail11:30:133
79399940,3cyclictest8745-21/usr/sbin/munin09:20:163
79399940,3cyclictest8023-21sed11:25:193
79399940,3cyclictest6229-21mktemp10:20:023
79399940,3cyclictest31268-21cut07:55:003
79399940,3cyclictest31216-21sed12:15:003
79399940,3cyclictest28762-21sed12:10:013
79399940,3cyclictest26329-21latency_hist07:45:003
79399940,3cyclictest21244-21latency_hist10:50:013
79399940,3cyclictest0-21swapper/311:50:093
79399940,3cyclictest0-21swapper/309:40:103
79399940,3cyclictest0-21swapper/308:50:123
79399940,0cyclictest27628-21ntp_states07:45:163
79349943,1cyclictest31744-21diskstats10:05:132
79349941,2cyclictest0-21swapper/212:30:112
79349941,2cyclictest0-21swapper/211:15:112
79349941,2cyclictest0-21swapper/210:10:112
79349941,2cyclictest0-21swapper/208:40:112
79349941,2cyclictest0-21swapper/208:35:112
79349941,2cyclictest0-21swapper/207:40:122
79349941,1cyclictest0-21swapper/212:35:112
79349941,1cyclictest0-21swapper/207:50:102
79349940,4cyclictest31367-21apt-get11:10:112
79349940,4cyclictest0-21swapper/211:55:102
79349940,3cyclictest31069-21date09:00:012
79349940,3cyclictest18922-21/usr/sbin/munin07:30:112
79349940,1cyclictest2627-21ntp_states08:00:172
79349940,1cyclictest24110-21cut09:50:112
79269941,2cyclictest0-21swapper/110:10:121
79269941,2cyclictest0-21swapper/109:35:111
79269941,2cyclictest0-21swapper/108:00:111
79269941,1cyclictest0-21swapper/111:25:101
79269941,1cyclictest0-21swapper/111:15:121
79269941,1cyclictest0-21swapper/110:45:101
79269940,2cyclictest0-21swapper/108:40:101
79269940,1cyclictest0-21swapper/111:35:121
79269940,0cyclictest0-21swapper/107:19:001
79259943,1cyclictest31311-21/usr/sbin/munin12:15:150
79259943,1cyclictest31294-21/usr/sbin/munin07:55:180
79259943,1cyclictest13735-21/usr/sbin/munin08:25:190
79259941,1cyclictest0-21swapper/011:25:110
79259941,1cyclictest0-21swapper/009:45:110
79259940,4cyclictest0-21swapper/007:35:220
79259940,3cyclictest8677-21cut12:35:000
79259940,3cyclictest24412-21df_inode07:40:130
79259940,3cyclictest18743-21/usr/sbin/munin11:50:150
79259940,3cyclictest18622-21wc08:35:010
79259940,3cyclictest18519-21latency_hist11:50:010
79259940,3cyclictest0-21swapper/008:10:090
79259940,3cyclictest0-21swapper/007:35:010
79259940,1cyclictest9583-21taskset07:10:240
79259940,1cyclictest23634-21/usr/sbin/munin08:45:160
79259940,1cyclictest13785-21/usr/sbin/munin07:20:190
79259940,1cyclictest1255-21/usr/sbin/munin10:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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