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2026-07-15 - 23:27
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Wed Jul 15, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30570992928,1cyclictest0-21swapper/211:20:172
3056699262,20cyclictest0-21swapper/111:50:521
3056699255,5cyclictest17716-21cat10:35:011
3056699236,16cyclictest11936-21awk12:15:181
30566992320,2cyclictest9697-21cpuspeed_turbos10:20:131
30566992318,3cyclictest20410-21sessionclean10:39:011
3056499230,22cyclictest3991-21H222:10:210
3056699225,16cyclictest7397-21fschecks_time10:15:171
3056699225,16cyclictest18809-21ntp_states08:40:201
30566992219,2cyclictest8278-21cron11:15:001
30566992219,2cyclictest3985-21H222:10:211
30566992219,2cyclictest26291-21sed08:00:011
30566992219,2cyclictest2520-21munin-run08:15:011
30566992219,2cyclictest2520-21munin-run08:15:001
30566992219,2cyclictest2206-21sort11:05:001
30566992218,3cyclictest18135-21nfsd411:30:201
30566992218,3cyclictest1085-21gdbus07:50:231
3057099210,3cyclictest0-21swapper/210:16:582
3056699215,2cyclictest479-21ntpq11:55:181
3056699214,16cyclictest4253-21cat10:10:131
3056699214,16cyclictest3814-21grep12:00:211
3056699214,16cyclictest29424-21munin-plugin-st08:05:001
3056699214,16cyclictest24565-21awk10:45:151
3056699214,16cyclictest19378-21sed07:45:171
3056699214,16cyclictest0-21swapper/110:50:231
3056699213,3cyclictest10714-21taskset11:16:041
3056699213,17cyclictest0-21swapper/108:50:161
3056699212,18cyclictest0-21swapper/112:10:121
30566992118,2cyclictest5767-21munin-run08:20:011
30566992118,2cyclictest29676-21expr10:55:161
30566992118,2cyclictest28243-21cat09:00:001
30566992118,2cyclictest23249-21expr11:40:131
30566992118,2cyclictest1598-21cat07:15:151
30566992118,2cyclictest1085-21gdbus09:20:231
30566992117,3cyclictest28522-21cpuspeed_turbos09:00:121
3056499214,2cyclictest3979-21H222:10:210
3057099201,18cyclictest0-21swapper/212:20:122
3057099200,19cyclictest31950-21taskset11:00:112
3056699204,15cyclictest16616-21sshd08:37:401
3056699203,2cyclictest32525-21taskset10:03:231
3056699203,2cyclictest14592-21idleruntime12:20:161
3056699203,2cyclictest0-21swapper/112:05:161
3056699203,16cyclictest20578-21needreboot09:40:201
3056699203,16cyclictest0-21swapper/109:05:261
3056699203,16cyclictest0-21swapper/108:25:001
3056699203,16cyclictest0-21swapper/107:25:151
3056699202,17cyclictest0-21swapper/111:30:011
3056699202,17cyclictest0-21swapper/109:35:141
3056699202,17cyclictest0-21swapper/109:10:141
3056699202,17cyclictest0-21swapper/107:36:181
30566992017,2cyclictest3954-21VM22:10:211
30566992017,2cyclictest27712-21mailstats11:45:231
30566992017,2cyclictest2684-21expr11:05:161
30566992017,2cyclictest26754-21timerwakeupswit09:50:231
30566992017,2cyclictest22345-21ls12:35:161
30566992017,2cyclictest11480-21plymouth07:30:221
30566992017,2cyclictest0-21swapper/111:35:011
30566992017,2cyclictest0-21swapper/108:05:171
30566992016,3cyclictest0-21swapper/111:20:111
30566992016,3cyclictest0-21swapper/109:30:091
3057099192,15cyclictest0-21swapper/209:25:152
30570991917,1cyclictest6621-21grep08:20:162
30570991915,3cyclictest3987-21H222:10:212
30570991914,3cyclictest3981-21H222:10:212
3057099191,16cyclictest28994-21tr11:50:122
3057099190,2cyclictest3989-21H222:10:212
3057099190,16cyclictest4099-21H222:10:212
3057099190,16cyclictest3989-21H222:10:212
3057099190,16cyclictest3987-21H222:10:212
3057099190,16cyclictest3983-21H222:10:212
3056699193,2cyclictest0-21swapper/110:40:221
3056699193,15cyclictest2798-21chrt10:05:471
3056699192,17cyclictest0-21swapper/110:25:361
3056699192,16cyclictest0-21swapper/112:28:531
3056699192,16cyclictest0-21swapper/108:30:161
30566991916,2cyclictest3983-21H222:10:211
30566991916,2cyclictest3979-21H222:10:211
3056699191,17cyclictest0-21swapper/107:20:141
30564991916,2cyclictest3985-21H222:10:210
30564991915,3cyclictest0-21swapper/008:52:390
3056499190,2cyclictest3985-21H222:10:210
3056499190,1cyclictest0-21swapper/011:03:580
3056499190,16cyclictest3989-21H222:10:210
3056499190,16cyclictest3983-21H222:10:210
3057099182,15cyclictest6547-21expr11:10:152
3057099182,15cyclictest23190-21cstates08:50:162
3057099182,15cyclictest0-21swapper/207:13:342
30570991816,1cyclictest3989-21H222:10:212
30570991816,1cyclictest0-21swapper/212:29:212
30570991816,1cyclictest0-21swapper/211:31:332
30570991815,2cyclictest4035-21H222:10:212
30570991815,2cyclictest24934-21nfsd407:55:202
30570991814,3cyclictest3985-21H222:10:212
30570991814,3cyclictest3976-21H222:10:212
30570991814,3cyclictest3976-21H222:10:212
3057099181,2cyclictest636-21chrt10:05:082
3057099181,16cyclictest20508-21chrt10:39:202
3057099181,16cyclictest0-21swapper/210:20:172
3057099180,3cyclictest7490-21cron12:10:002
3057099180,2cyclictest3991-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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