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2026-08-24 - 14:45
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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 highest latencies:
System rackdslot0.osadl.org (updated Mon Aug 24, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14653993517,17cyclictest0-21swapper/222:10:122
14649993424,10cyclictest0-21swapper/119:19:241
14649993122,9cyclictest21-21ksoftirqd/122:36:341
1464999230,5cyclictest0-21swapper/120:15:481
1464899230,0cyclictest0-21swapper/020:02:110
1464899223,18cyclictest0-21swapper/022:46:200
14648992113,4cyclictest0-21swapper/022:17:370
14653992017,2cyclictest7837-21expr19:50:212
14653992011,5cyclictest0-21swapper/222:20:142
14653992011,5cyclictest0-21swapper/222:20:142
1465399194,1cyclictest0-21swapper/200:10:142
1465399192,16cyclictest0-21swapper/222:25:162
14653991913,5cyclictest0-21swapper/221:50:222
14653991913,5cyclictest0-21swapper/221:27:412
1465399190,5cyclictest0-21swapper/220:52:012
1465399190,18cyclictest0-21swapper/220:20:142
1465399190,18cyclictest0-21swapper/220:15:152
1464999192,2cyclictest3987-21H222:10:211
14649991916,2cyclictest15964-21chrt23:55:051
1464999190,17cyclictest14817-21turbostat.cron22:00:001
14648991916,2cyclictest10727-21cut20:55:010
14648991913,1cyclictest111rcu_preempt23:53:560
1464899190,18cyclictest9-21ksoftirqd/019:57:050
1465399182,15cyclictest215782sleep221:14:482
14653991815,2cyclictest9861-21apt-config23:45:002
14653991815,2cyclictest20012-21chrt22:06:462
14653991814,3cyclictest20820-21/usr/sbin/munin19:20:202
1465399180,17cyclictest0-21swapper/220:03:162
1465399180,16cyclictest23333-21nfsd421:15:182
1464999183,1cyclictest21-21ksoftirqd/119:20:211
14649991816,1cyclictest21-21ksoftirqd/122:10:231
14649991816,1cyclictest211ksoftirqd/120:05:191
14649991814,3cyclictest3979-21H222:10:211
14649991814,3cyclictest0-21swapper/122:04:251
14649991813,3cyclictest3987-21H222:10:211
14649991813,1cyclictest111rcu_preempt19:31:561
1464999181,16cyclictest20138-21taskset22:08:211
1464999180,9cyclictest0-21swapper/123:47:451
1464999180,3cyclictest3944-21java21:30:011
1464999180,3cyclictest3944-21java21:30:011
1464999180,17cyclictest843-21systemd-network22:29:301
1464899182,15cyclictest3979-21H222:10:210
14648991816,1cyclictest5496-21mailstats21:40:200
14648991816,1cyclictest455-21plymouthd23:31:390
1464899180,17cyclictest870-21systemd-logind19:31:520
1464899180,16cyclictest3940-21java21:30:010
1464899180,16cyclictest3940-21java21:30:010
1464899180,15cyclictest11166-21cut20:55:130
1465399172,9cyclictest29645-21gpgv00:20:002
14653991714,2cyclictest843-21systemd-network20:28:312
14653991714,2cyclictest4935-21ps19:45:202
14653991714,2cyclictest3772-21date21:40:022
14653991714,2cyclictest28823-21sed19:35:012
14653991714,2cyclictest16721-21sed19:10:202
14653991714,2cyclictest1100-21snmpd23:45:142
14653991714,2cyclictest10068-21missed_timers22:45:182
1465399171,15cyclictest0-21swapper/220:30:212
1465399170,2cyclictest3989-21H222:10:212
1465399170,2cyclictest2100-21postgres22:34:072
1465399170,1cyclictest0-21swapper/219:28:322
1465399170,1cyclictest0-21swapper/200:05:532
1465399170,16cyclictest7441-21python320:50:012
1465399170,16cyclictest7003-21runrttasks00:35:142
1465399170,16cyclictest6661-21expr22:40:142
1465399170,16cyclictest4625-21cron20:45:012
1465399170,16cyclictest3839-21cpuspeed_turbos00:30:152
1465399170,16cyclictest3707-21master22:00:152
1465399170,16cyclictest3274-21threads23:30:232
1465399170,16cyclictest30587-21grep19:35:182
1465399170,16cyclictest30251-21gpg-connect-age00:20:012
1465399170,16cyclictest30206-21/usr/sbin/munin21:30:162
1465399170,16cyclictest30206-21/usr/sbin/munin21:30:162
1465399170,16cyclictest2755-21apt-config19:45:012
1465399170,16cyclictest25502-21/usr/sbin/munin23:15:132
1465399170,16cyclictest24767-21netstat22:15:182
1465399170,16cyclictest22130-21ionclean23:08:592
1465399170,16cyclictest2039-21nfsd400:25:202
1465399170,16cyclictest20388-21cron19:20:002
1465399170,16cyclictest2007-21systemd-journal21:57:382
1465399170,16cyclictest17427-21grep23:00:142
1465399170,16cyclictest17285-21expr23:55:202
1465399170,16cyclictest17112-21fschecks_time21:05:142
1465399170,16cyclictest15691-21anacron21:01:092
1465399170,16cyclictest14499-21snapd22:35:182
1465399170,16cyclictest13299-21tr22:50:182
1465399170,16cyclictest12134-21nfsd420:55:202
1464999172,14cyclictest0-21swapper/122:50:081
14649991716,1cyclictest21-21ksoftirqd/123:36:581
14649991716,1cyclictest21-21ksoftirqd/100:25:051
14649991715,1cyclictest3979-21H222:10:211
14649991714,2cyclictest4490-21latency19:45:181
14649991714,2cyclictest29794-21pzem_current23:20:201
14649991714,2cyclictest28736-21nfsd421:25:181
14649991714,2cyclictest27866-21sendmail_mailqu22:20:211
14649991714,2cyclictest27866-21sendmail_mailqu22:20:211
14649991714,2cyclictest23173-21expr23:10:131
14649991714,2cyclictest19458-21grep21:10:131
14649991714,2cyclictest11743-21grep20:00:131
14649991714,2cyclictest1100-21snmpd22:45:161
14649991714,2cyclictest1100-21snmpd00:19:031
14649991713,1cyclictest295898rtkit-daemon19:12:321
1464999171,15cyclictest4035-21H222:10:211
1464999171,15cyclictest14614-21expr22:55:151
1464999170,3cyclictest25619-21sendmail-mta19:26:531
1464999170,2cyclictest8908-21apt-get21:50:011
1464999170,2cyclictest4132-21expr00:30:141
1464999170,2cyclictest3976-21H222:10:211
1464999170,2cyclictest28975-21expr20:30:131
1464999170,2cyclictest25615-21cpuspeed_turbos23:15:121
1464999170,2cyclictest18245-21kernelversion20:10:161
1464999170,2cyclictest1348-21lxd21:00:521
1464999170,2cyclictest0-21swapper/121:50:011
1464999170,1cyclictest0-21swapper/100:10:151
1464999170,16cyclictest7490-21cpuspeed_turbos23:40:111
1464999170,16cyclictest5429-21sendmail_mailqu21:40:191
1464999170,16cyclictest4035-21H222:10:211
1464999170,16cyclictest17826-21nvmesmart_nvme021:05:181
1464999170,16cyclictest11665-21idleruntime20:55:151
1464999170,16cyclictest11217-21chrt19:59:581
1464899172,1cyclictest0-21swapper/020:33:010
14648991716,0cyclictest0-21swapper/022:25:500
14648991714,2cyclictest6699-21cat19:50:140
14648991714,2cyclictest6618-21cat00:35:140
14648991714,2cyclictest3976-21H222:10:210
14648991714,2cyclictest30545-21cpuspeed_turbos00:20:140
14648991714,2cyclictest28544-21ntp_kernel_err00:15:180
14648991714,2cyclictest27657-21cpuspeed_turbos21:25:140
14648991714,2cyclictest22404-21apt-get20:20:020
14648991714,2cyclictest21594-21cron21:15:010
14648991714,2cyclictest20579-21expr20:15:150
14648991714,2cyclictest14419-21/usr/sbin/munin21:00:150
14648991714,2cyclictest1-21systemd00:06:510
1464899171,1cyclictest13126-21cut21:55:150
1464899170,2cyclictest8985-21python321:50:000
1464899170,2cyclictest6694-21expr22:40:140
1464899170,2cyclictest626-21/usr/sbin/munin00:25:170
1464899170,2cyclictest16721-21expr21:05:140
1464899170,2cyclictest1521-21lxd22:54:510
1464899170,2cyclictest14784-21cron22:00:010
1464899170,16cyclictest31381-21/usr/sbin/munin20:35:160
1464899170,16cyclictest3053-21systemd-logind19:42:520
1464899170,16cyclictest2872-21systemd-logind21:52:520
1464899170,16cyclictest14500-21snapd23:45:380
1464899170,15cyclictest0-21swapper/019:20:210
14653991614,1cyclictest31865-21expr20:35:142
14653991614,1cyclictest0-21swapper/223:20:132
14653991614,1cyclictest0-21swapper/222:55:152
14653991614,1cyclictest0-21swapper/221:45:212
14653991614,1cyclictest0-21swapper/221:35:142
14653991614,1cyclictest0-21swapper/221:20:182
1465399160,1cyclictest0-21swapper/220:10:122
1465399160,15cyclictest3976-21H222:10:212
1465399160,15cyclictest0-21swapper/223:35:122
1465399160,15cyclictest0-21swapper/223:25:142
1465399160,15cyclictest0-21swapper/219:55:152
1465399160,15cyclictest0-21swapper/200:02:202
14649991614,1cyclictest7791-21systemctl19:50:211
14649991614,1cyclictest0-21swapper/122:15:161
14649991614,1cyclictest0-21swapper/120:50:041
14649991614,1cyclictest0-21swapper/120:35:531
14649991614,1cyclictest0-21swapper/120:20:021
14649991614,1cyclictest0-21swapper/119:35:021
14649991614,1cyclictest0-21swapper/100:07:291
14649991614,1cyclictest0-21swapper/100:00:151
1464999160,2cyclictest17929-21http_loadtime23:00:171
1464999160,1cyclictest1380-21/usr/sbin/munin23:30:141
1464999160,1cyclictest0-21swapper/123:50:161
1464999160,15cyclictest6012-21sort20:45:171
1464999160,15cyclictest0-21swapper/121:20:141
1464999160,15cyclictest0-21swapper/121:15:141
1464999160,15cyclictest0-21swapper/120:40:171
1464999160,15cyclictest0-21swapper/120:25:141
1464999160,15cyclictest0-21swapper/119:40:181
14648991614,1cyclictest0-21swapper/023:55:050
14648991614,1cyclictest0-21swapper/023:41:240
14648991614,1cyclictest0-21swapper/023:35:140
14648991614,1cyclictest0-21swapper/023:25:120
14648991614,1cyclictest0-21swapper/023:20:140
14648991614,1cyclictest0-21swapper/023:05:130
14648991614,1cyclictest0-21swapper/022:10:170
14648991614,1cyclictest0-21swapper/021:35:170
14648991614,1cyclictest0-21swapper/021:15:120
14648991614,1cyclictest0-21swapper/020:30:000
14648991614,1cyclictest0-21swapper/019:45:140
14648991614,1cyclictest0-21swapper/000:00:230
1464899160,2cyclictest17266-21apt-get19:15:010
1464899160,1cyclictest0-21swapper/023:10:130
1464899160,1cyclictest0-21swapper/022:55:200
1464899160,15cyclictest6221-21grep20:45:180
1464899160,15cyclictest3888-21sed22:35:160
1464899160,15cyclictest29313-21cnf-update-db19:35:030
1464899160,15cyclictest25766-21latency21:20:170
1464899160,15cyclictest23997-21cat19:25:150
1464899160,15cyclictest17891-21df20:10:140
1464899160,15cyclictest17199-21dpkg23:00:130
1464899160,15cyclictest15077-21grep19:10:120
1464899160,15cyclictest14795-21expr20:05:140
1464899160,15cyclictest0-21swapper/023:15:120
1464899160,15cyclictest0-21swapper/022:30:140
1464899160,15cyclictest0-21swapper/022:20:220
1464899160,15cyclictest0-21swapper/022:20:220
1464899160,15cyclictest0-21swapper/022:05:180
1464899160,15cyclictest0-21swapper/000:30:210
14653991513,1cyclictest0-21swapper/220:05:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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