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2026-06-08 - 09:07
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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 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3065992624,1cyclictest0-21swapper/221:55:192
306599220,8cyclictest0-21swapper/220:54:502
3054992220,1cyclictest0-21swapper/020:00:190
305499220,18cyclictest0-21swapper/022:01:200
306599210,2cyclictest29357-21apt-key22:50:002
305499210,4cyclictest399-20systemd-journal19:35:000
3065992017,2cyclictest22503-21date21:40:012
3065992017,2cyclictest22503-21date21:40:012
306599193,11cyclictest26487-21munin-run20:50:012
306599192,13cyclictest0-21swapper/221:52:152
3065991916,2cyclictest3429-21tr21:05:132
306199193,15cyclictest22776-21switchtime22:35:221
306199192,16cyclictest0-21swapper/119:26:411
306199192,16cyclictest0-21swapper/119:26:411
3061991917,1cyclictest21-21ksoftirqd/100:21:571
3054991916,2cyclictest3414-21master20:36:480
306599182,1cyclictest69782chrt22:09:352
306599182,15cyclictest3991-21H222:10:212
306599182,15cyclictest28-21ksoftirqd/223:05:012
306599182,15cyclictest17987-21idleruntime21:30:152
3065991815,2cyclictest8680-21ntp_kernel_pll_00:05:202
3065991810,4cyclictest0-21swapper/221:27:342
306599180,3cyclictest6857-21fschecks_time23:05:162
306599180,16cyclictest0-21swapper/221:21:142
306199182,1cyclictest0-21swapper/120:35:221
3061991816,1cyclictest0-21swapper/100:35:381
3061991816,1cyclictest0-21swapper/100:34:261
306199180,3cyclictest29141-21python322:50:001
306199180,17cyclictest843-21systemd-network19:43:221
306199180,17cyclictest4059-21sshd22:04:101
306199180,17cyclictest3985-21H222:10:211
305499182,15cyclictest9-21ksoftirqd/023:19:240
3054991816,1cyclictest0-21swapper/022:09:210
3054991814,3cyclictest17364-21cpuspeed_turbos19:35:130
3054991814,3cyclictest14080-21cron21:25:010
3054991814,3cyclictest0-21swapper/021:51:190
305499180,3cyclictest1525-21lxd20:24:500
305499180,16cyclictest26564-21ldconfig.real20:50:010
305499180,16cyclictest0-21swapper/021:13:530
3065991716,0cyclictest0-21swapper/200:11:482
3065991715,1cyclictest3981-21H222:10:212
3065991715,1cyclictest28-21ksoftirqd/221:19:512
3065991715,1cyclictest0-21swapper/222:20:142
3065991715,1cyclictest0-21swapper/221:40:212
3065991714,2cyclictest7821-21pzem_current21:10:202
3065991714,2cyclictest6473-21sed20:10:202
3065991714,2cyclictest3989-21H222:10:212
3065991714,2cyclictest31814-21wget23:50:152
3065991714,2cyclictest21777-21expr20:40:152
3065991714,2cyclictest19974-21/usr/sbin/munin23:30:182
3065991714,2cyclictest17520-21expr19:35:132
3065991714,2cyclictest13234-21ps19:25:212
3065991714,2cyclictest13234-21ps19:25:212
3065991714,2cyclictest11632-21ntpq20:20:202
3065991714,1cyclictest0-21swapper/220:00:222
306599170,2cyclictest9665-21fschecks_count19:20:152
306599170,2cyclictest2724-21nfsd422:00:182
306599170,2cyclictest18751-21cat22:30:142
306599170,2cyclictest17279-21apache_processe23:25:112
306599170,2cyclictest14496-21snapd23:15:282
306599170,2cyclictest1351-21lxd22:44:502
306599170,16cyclictest7924-21expr20:15:142
306599170,16cyclictest4099-21H222:10:212
306599170,16cyclictest3985-21H222:10:212
306599170,16cyclictest31489-21sendmail_mailqu22:50:212
306599170,16cyclictest28759-21expr19:55:132
306599170,16cyclictest26861-21nfsd423:40:182
306599170,16cyclictest26063-21cat19:50:142
306599170,16cyclictest24971-21sed23:38:592
306599170,16cyclictest23609-21awk00:35:002
306599170,16cyclictest2181-21fschecks_count20:05:152
306599170,16cyclictest16867-21nfsd422:25:192
3061991715,1cyclictest21-21ksoftirqd/121:31:421
3061991714,2cyclictest4008-21grep21:05:141
3061991714,2cyclictest3989-21H222:10:211
3061991714,2cyclictest3985-21H222:10:211
3061991714,2cyclictest31212-21awk20:55:181
3061991714,2cyclictest2933-21awk20:05:181
3061991714,2cyclictest28664-21ps20:50:231
3061991714,2cyclictest20115-21cpuspeed_turbos21:35:141
3061991714,2cyclictest20115-21cpuspeed_turbos21:35:141
3061991714,2cyclictest16510-21if_enp1s020:30:161
3061991714,2cyclictest1377-21lxd00:18:351
3061991714,2cyclictest1348-21lxd23:16:351
3061991714,2cyclictest0-21swapper/123:38:231
306199171,15cyclictest0-21swapper/123:00:171
306199170,3cyclictest0-21swapper/123:07:371
306199170,2cyclictest8359-21/usr/sbin/munin22:10:171
306199170,2cyclictest3991-21H222:10:211
306199170,2cyclictest3983-21H222:10:211
306199170,2cyclictest31007-21sed22:50:181
306199170,2cyclictest24617-21fschecks_count22:40:161
306199170,2cyclictest22854-21/usr/sbin/munin21:40:181
306199170,2cyclictest14850-21expr19:30:141
306199170,2cyclictest11956-21grep21:20:131
306199170,2cyclictest10218-21cut19:20:181
306199170,2cyclictest0-21swapper/123:45:171
306199170,1cyclictest0-21swapper/119:10:441
306199170,16cyclictest7835-21sendmail_mailqu19:15:201
306199170,16cyclictest7341-21latency_hist22:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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