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2026-06-08 - 16:17
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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 Mon Jun 08, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15812993029,0cyclictest0-21swapper/110:59:501
15812992414,10cyclictest27468-21kworker/1:011:37:321
15812992315,4cyclictest5671-21dpkg10:40:001
15811992319,3cyclictest880-21rs:main0
1581199230,5cyclictest0-21swapper/011:15:430
15812992211,10cyclictest0-21swapper/111:34:221
15811992214,7cyclictest23938-21latency_hist12:10:010
1581199221,16cyclictest23426-21seq10:14:030
1581199220,4cyclictest0-21swapper/012:17:410
1581199220,2cyclictest7301-21ls10:40:180
1581199220,2cyclictest7301-21ls10:40:170
1581199220,2cyclictest2007-21systemd-journal10:17:310
1581199220,2cyclictest2007-21systemd-journal10:17:300
1581199220,21cyclictest29169-21if_lxdbr009:25:160
1581199220,1cyclictest0-21swapper/009:55:230
1581199220,16cyclictest9063-21wc11:40:250
1581199220,16cyclictest25403-21latency_hist09:20:000
15811992115,5cyclictest17855-21cat08:10:010
15811992114,6cyclictest9963-21latency08:50:180
15811992114,6cyclictest9445-21expr10:45:130
1581199211,19cyclictest0-21swapper/009:22:580
1581199210,20cyclictest30614-21if_err_eno107:35:160
1581199210,20cyclictest21436-21munin-run07:20:010
1581199210,1cyclictest0-21swapper/011:40:000
1581199210,1cyclictest0-21swapper/009:05:190
1581199210,1cyclictest0-21swapper/008:56:310
1581199210,1cyclictest0-21swapper/008:56:300
1581199210,1cyclictest0-21swapper/008:35:210
1581199210,1cyclictest0-21swapper/008:00:020
1581199210,16cyclictest3979-21H222:10:210
1581199210,15cyclictest6480-21expr12:35:130
1581199210,15cyclictest550-21expr07:40:140
1581199210,15cyclictest25032-21hddtemp_smartct07:25:170
1581199210,15cyclictest0-21swapper/012:00:190
1581399203,2cyclictest13650-21nfsd408:00:162
15813992020,0cyclictest0-21swapper/208:30:142
15813992017,2cyclictest1-21systemd12:00:012
15813992016,3cyclictest0-21swapper/210:25:182
15813992014,5cyclictest0-21swapper/211:20:202
15813992013,4cyclictest6877-21cron11:40:012
15811992015,4cyclictest0-21swapper/007:55:180
15811992014,5cyclictest4637-21/usr/sbin/munin09:40:100
15811992014,5cyclictest3303-21fschecks_count10:35:150
15811992014,5cyclictest0-21swapper/011:58:140
15811992014,5cyclictest0-21swapper/011:47:250
15811992014,5cyclictest0-21swapper/011:00:200
15811992014,5cyclictest0-21swapper/009:50:120
15811992014,5cyclictest0-21swapper/009:00:150
15811992014,5cyclictest0-21swapper/008:40:140
15811992012,7cyclictest32458-21processes11:25:170
1581199200,2cyclictest24138-21expr08:20:140
1581199200,2cyclictest16541-21expr07:10:150
1581199200,2cyclictest16541-21expr07:10:140
1581199200,1cyclictest0-21swapper/011:20:230
1581199200,1cyclictest0-21swapper/010:34:210
1581199200,1cyclictest0-21swapper/008:45:140
1581199200,1cyclictest0-21swapper/007:45:190
1581199200,19cyclictest24309-21egrep12:10:120
1581199200,19cyclictest0-21swapper/012:30:130
1581199200,19cyclictest0-21swapper/011:10:120
1581199200,19cyclictest0-21swapper/009:45:150
1581199200,16cyclictest14174-21ntpq11:50:170
1581199200,15cyclictest30487-21which12:20:160
1581199200,15cyclictest30456-21missed_timers08:30:160
1581199200,15cyclictest29951-21cat10:25:140
1581199200,14cyclictest0-21swapper/010:20:120
1581199200,0cyclictest0-21swapper/007:30:210
1581399193,15cyclictest0-21swapper/210:45:172
1581399192,16cyclictest19944-21cut09:10:012
1581399192,16cyclictest18087-21smtpd07:10:432
1581399192,16cyclictest18087-21smtpd07:10:432
15813991917,1cyclictest0-21swapper/210:16:182
15813991917,1cyclictest0-21swapper/210:16:172
15813991916,2cyclictest5388-21seq08:44:412
15813991915,3cyclictest0-21swapper/207:37:202
1581399190,3cyclictest0-21swapper/211:00:212
1581299193,15cyclictest0-21swapper/109:01:291
15811991914,4cyclictest0-21swapper/010:55:180
1581199190,1cyclictest4035-21H222:10:210
1581199190,1cyclictest4035-21H222:10:210
1581199190,1cyclictest0-21swapper/010:10:000
1581199190,1cyclictest0-21swapper/009:30:120
1581199190,1cyclictest0-21swapper/007:24:230
1581199190,18cyclictest0-21swapper/008:15:190
1581199190,15cyclictest3979-21H222:10:210
1581199190,0cyclictest0-21swapper/007:55:000
15813991816,1cyclictest0-21swapper/207:42:152
15813991815,2cyclictest3987-21H222:10:212
15813991815,2cyclictest1615-21grep11:30:122
15813991815,2cyclictest13637-21if_enp1s009:55:172
15813991814,3cyclictest3989-21H222:10:212
1581399180,2cyclictest18569-21tr10:05:142
1581299183,14cyclictest21-21ksoftirqd/108:25:101
15812991815,2cyclictest3053-21systemd-logind11:10:521
15812991814,3cyclictest3985-21H222:10:211
15812991814,3cyclictest0-21swapper/112:35:051
15812991814,3cyclictest0-21swapper/110:20:131
15812991814,2cyclictest8207-21python308:50:001
15811991813,4cyclictest0-21swapper/011:30:180
15811991812,5cyclictest0-21swapper/010:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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