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2026-07-25 - 00:06
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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 Fri Jul 24, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16168992221,1cyclictest0-21swapper/207:46:182
1616899220,21cyclictest870-21systemd-logind11:48:512
1616899210,18cyclictest0-21swapper/207:41:372
1616799213,11cyclictest15161-21ls11:55:001
1616899203,11cyclictest0-21swapper/212:34:252
16168992016,3cyclictest0-21swapper/211:04:232
1616899200,19cyclictest843-21systemd-network08:31:012
1616899200,19cyclictest843-21systemd-network08:31:012
16167992010,9cyclictest21-21ksoftirqd/110:14:091
1616799200,19cyclictest843-21systemd-network09:22:301
1616799200,19cyclictest426-21systemd-udevd10:04:521
16165992014,3cyclictest0-21swapper/007:55:190
16168991917,1cyclictest28-21ksoftirqd/211:30:012
16168991914,3cyclictest4099-21H222:10:212
1616899190,2cyclictest3985-21H222:10:212
1616899190,16cyclictest3985-21H222:10:212
1616899190,16cyclictest3983-21H222:10:212
16167991917,1cyclictest21-21ksoftirqd/107:46:071
16167991914,4cyclictest3983-21H222:10:211
1616799190,18cyclictest426-21systemd-udevd11:16:511
1616599193,15cyclictest9-21ksoftirqd/007:13:150
16165991916,2cyclictest3053-21systemd-logind10:04:510
16168991816,1cyclictest0-21swapper/209:55:192
16168991815,2cyclictest0-21swapper/207:26:232
16168991814,3cyclictest3979-21H222:10:212
1616899181,2cyclictest368-21chrt12:25:002
1616899180,17cyclictest426-21systemd-udevd07:54:522
1616899180,17cyclictest2210-21cron10:35:012
1616899180,17cyclictest0-21swapper/211:07:112
1616899180,16cyclictest3985-21H222:10:212
1616899180,16cyclictest3976-21H222:10:212
1616799182,15cyclictest3985-21H222:10:211
16167991816,1cyclictest21-21ksoftirqd/110:37:301
16167991815,2cyclictest23970-21grep11:10:171
16167991815,2cyclictest21841-21missed_timers08:15:171
16167991814,3cyclictest2007-21systemd-journal07:25:351
16167991814,1cyclictest0-21swapper/112:00:141
1616799181,16cyclictest12964-21master09:55:171
1616799180,2cyclictest3987-21H222:10:211
1616799180,17cyclictest3991-21H222:10:211
1616799180,16cyclictest426-21systemd-udevd11:38:511
1616799180,16cyclictest24964-21ntp_offset08:20:191
1616599180,2cyclictest3991-21H222:10:210
1616599180,2cyclictest0-21swapper/007:51:330
1616599180,17cyclictest0-21swapper/012:28:080
1616599180,16cyclictest3989-21H222:10:210
1616599180,15cyclictest3989-21H222:10:210
1616899172,14cyclictest0-21swapper/210:05:562
16168991715,1cyclictest28-21ksoftirqd/209:31:132
16168991715,1cyclictest0-21swapper/210:53:402
16168991714,2cyclictest8650-21ntp_offset11:40:182
16168991714,2cyclictest7398-21switchtime10:40:202
16168991714,2cyclictest7398-21switchtime10:40:202
16168991714,2cyclictest4912-21http_loadtime09:40:172
16168991714,2cyclictest32718-21fschecks_time08:35:142
16168991714,2cyclictest28778-21ntp_kernel_pll_07:30:192
16168991714,2cyclictest27088-21cat08:25:142
16168991714,2cyclictest24827-21df12:10:152
16168991714,2cyclictest18392-21timerwakeupswit07:10:222
16168991714,2cyclictest11394-21timerandwakeup09:50:222
1616899171,15cyclictest28-21ksoftirqd/212:00:152
1616899171,15cyclictest248122chrt11:12:442
1616899170,2cyclictest8735-21cstates08:50:142
1616899170,2cyclictest3989-21H222:10:212
1616899170,2cyclictest28903-21sshd10:24:492
1616899170,2cyclictest17406-21pzem_energy11:55:202
1616899170,2cyclictest1515-21lxd08:10:422
1616899170,1cyclictest0-21swapper/210:45:412
1616899170,16cyclictest4319-21nfsd408:40:182
1616899170,16cyclictest3989-21H222:10:212
1616899170,16cyclictest3983-21H222:10:212
1616899170,16cyclictest3053-21systemd-logind11:38:512
1616899170,16cyclictest29381-21nfsd411:20:192
1616899170,16cyclictest2872-21systemd-logind10:16:522
1616899170,16cyclictest28629-21switchtime12:15:212
1616899170,16cyclictest2069-21systemd-udevd10:12:512
1616899170,16cyclictest17312-21chrt08:08:232
1616899170,16cyclictest14952-21/usr/sbin/munin10:55:152
1616899170,16cyclictest14550-21snapd08:20:382
1616899170,16cyclictest11398-21timerandwakeup07:55:242
1616899170,16cyclictest0-21swapper/208:56:442
16167991715,1cyclictest21-21ksoftirqd/110:45:281
16167991714,2cyclictest870-21systemd-logind10:58:521
16167991714,2cyclictest3985-21H222:10:211
16167991714,2cyclictest31883-21latency11:25:181
16167991714,2cyclictest2716-21timerandwakeup09:35:201
16167991714,2cyclictest22639-21latency_hist11:10:011
16167991714,2cyclictest10781-21/usr/sbin/munin11:45:171
16167991714,2cyclictest1054-21ntp_kernel_pll_08:35:181
16167991714,2cyclictest0-21swapper/109:25:201
16167991713,3cyclictest1085-21gdbus12:30:001
1616799170,2cyclictest9763-21nfsd408:50:191
1616799170,2cyclictest4318-21grep08:40:181
1616799170,2cyclictest2872-21systemd-logind11:30:521
1616799170,2cyclictest27986-21df_inode07:30:151
1616799170,2cyclictest20427-21nfsd407:15:201
1616799170,2cyclictest1856-21systemd-udevd12:16:511
1616799170,2cyclictest17523-21cat11:00:151
1616799170,2cyclictest1526-21lxd12:38:421
1616799170,2cyclictest14387-21chrt08:01:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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