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2026-07-07 - 23:10
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Tue Jul 07, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
792099262,19cyclictest31786-21cat12:35:010
792199230,5cyclictest0-21swapper/112:25:221
792099214,1cyclictest0-21swapper/008:09:560
792099214,1cyclictest0-21swapper/008:09:560
7921992012,7cyclictest843-21systemd-network11:58:551
7921992012,7cyclictest843-21systemd-network11:58:541
792299192,3cyclictest0-21swapper/209:00:002
792299192,16cyclictest27062-21smtpd11:25:522
7922991917,1cyclictest0-21swapper/208:25:012
7922991914,4cyclictest29214-21grep10:35:142
792299190,1cyclictest0-21swapper/211:39:172
7921991917,1cyclictest0-21swapper/110:45:121
7921991917,1cyclictest0-21swapper/109:00:141
7921991916,2cyclictest16478-21perf11:10:011
7921991915,3cyclictest0-21swapper/109:35:191
7920991916,2cyclictest0-21swapper/007:52:580
7920991915,3cyclictest2945-21cpuspeed_turbos10:45:130
7920991913,5cyclictest0-21swapper/011:00:000
792299182,2cyclictest25946-21date10:30:002
792299182,15cyclictest0-21swapper/208:52:582
7922991817,1cyclictest28-21ksoftirqd/207:40:192
7922991816,1cyclictest0-21swapper/212:31:072
7922991816,1cyclictest0-21swapper/208:39:362
7922991815,2cyclictest2872-21systemd-logind08:00:522
792299181,2cyclictest7154-21cpuspeed_turbos11:50:132
792299181,16cyclictest30766-21cut09:40:182
792299180,3cyclictest8868-21grep10:00:012
792299180,2cyclictest12135-21needreboot07:15:192
792299180,16cyclictest0-21swapper/212:35:132
7921991815,2cyclictest3991-21H222:10:211
7921991815,2cyclictest0-21swapper/109:20:151
7921991814,3cyclictest863-21avahi-daemon11:15:211
7921991814,3cyclictest30694-21grep12:30:181
7921991814,3cyclictest26250-21awk09:35:011
7921991814,3cyclictest0-21swapper/108:45:051
792199180,17cyclictest21110-21awk08:30:011
792199180,17cyclictest0-21swapper/112:23:461
792099181,16cyclictest17731-21python308:25:010
792099180,3cyclictest1526-21lxd10:10:430
792099180,2cyclictest399-20systemd-journal07:50:010
7922991715,1cyclictest3981-21H222:10:212
7922991714,2cyclictest8101-21nfsd408:05:182
7922991714,2cyclictest8101-21nfsd408:05:172
7922991714,2cyclictest3981-21H222:10:212
7922991714,2cyclictest27961-21apache_processe08:40:132
7922991714,2cyclictest23119-21runrttasks12:15:452
7922991714,2cyclictest20804-21munin-run09:25:012
7922991714,2cyclictest17970-21chrt12:09:492
7922991714,2cyclictest17731-21python308:25:012
7922991714,2cyclictest15892-21snapd07:27:582
7922991714,2cyclictest12804-21sendmail_mailst11:00:202
792299171,15cyclictest4144-21which09:50:152
792299171,15cyclictest14677-21timerwakeupswit12:00:232
7922991711,3cyclictest0-21swapper/209:08:202
792299170,2cyclictest843-21systemd-network11:08:242
792299170,2cyclictest727-21munin-plugin-st07:55:012
792299170,2cyclictest32441-21apt-key09:45:002
792299170,2cyclictest19579-21processes10:15:202
792299170,2cyclictest15011-21grep07:20:172
792299170,2cyclictest1300-21lxd08:32:432
792299170,2cyclictest1300-21lxd08:32:432
792299170,2cyclictest1071-21apache_volume11:40:112
792299170,16cyclictest6265-21expr10:50:132
792299170,16cyclictest5601-21lxd10:40:422
792299170,16cyclictest455-21plymouthd11:20:142
792299170,16cyclictest3976-21H222:10:212
792299170,16cyclictest3056-21tr10:45:132
792299170,16cyclictest28949-21sed09:39:002
792299170,16cyclictest28568-21/usr/sbin/munin07:45:182
792299170,16cyclictest25255-21awk12:20:192
792299170,16cyclictest2069-21systemd-udevd11:30:522
792299170,16cyclictest19339-21kernelversion12:10:162
792299170,16cyclictest1829-21systemd-journal08:12:142
792299170,16cyclictest17886-21cat10:15:012
792299170,16cyclictest12826-21if_eno110:05:152
792299170,16cyclictest10727-21fschecks_time11:55:152
792299170,16cyclictest10727-21fschecks_time11:55:142
792299170,16cyclictest0-21swapper/211:45:142
7921991715,1cyclictest23571-21nfsd411:20:181
7921991715,1cyclictest21-21ksoftirqd/108:13:191
7921991714,2cyclictest3351-21lxd12:16:431
7921991714,2cyclictest32194-21apt-key09:45:011
7921991714,2cyclictest29283-21nfsd408:40:181
7921991714,2cyclictest25391-21expr11:25:141
7921991714,2cyclictest24221-21cron08:35:011
7921991714,2cyclictest24221-21cron08:35:011
7921991714,2cyclictest10957-21cat11:00:001
792199171,1cyclictest21-21ksoftirqd/107:50:581
792199170,2cyclictest7642-21idleruntime08:05:161
792199170,2cyclictest7642-21idleruntime08:05:161
792199170,2cyclictest6459-21apt-get09:55:011
792199170,2cyclictest3295-21grep09:50:121
792199170,2cyclictest30204-21nfsd410:35:191
792199170,2cyclictest28628-21cat11:30:161
792199170,2cyclictest27250-21cat07:45:011
792199170,2cyclictest19821-21ntp_states12:10:181
792199170,2cyclictest18089-21grep11:10:181
792199170,2cyclictest1522-21lxd11:54:431
792199170,2cyclictest14933-21basename08:20:011
792199170,2cyclictest1277-21sendmail_mailqu12:35:201
792199170,1cyclictest18026-21python308:25:011
792199170,16cyclictest820-21kernelversion10:40:161
792199170,16cyclictest6500-21cut10:50:151
792199170,16cyclictest4051-21cut11:45:001
792199170,16cyclictest30505-21/usr/sbin/munin11:35:131
792199170,16cyclictest27911-21cat10:30:221
792199170,16cyclictest20741-21systemctl07:30:241
792199170,16cyclictest1794-21which07:55:151
792199170,16cyclictest10956-21ls10:00:231
792199170,16cyclictest1079-21cups-browsed09:45:221
792199170,16cyclictest10151-21lxd07:36:431
792199170,16cyclictest0-21swapper/110:25:161
792199170,15cyclictest4099-21H222:10:211
792099172,15cyclictest9-21ksoftirqd/012:09:000
7920991714,2cyclictest9633-21apache_accesses09:05:120
7920991714,2cyclictest5790-21switchtime08:55:210
7920991714,2cyclictest27790-21head12:25:170
7920991714,2cyclictest27552-21nfsd410:30:180
7920991714,2cyclictest25847-21basename11:25:160
7920991714,2cyclictest23978-21sensors_temp11:20:210
7920991714,2cyclictest15109-21/usr/sbin/munin07:20:180
7920991714,2cyclictest13371-21df_inode12:00:140
7920991714,2cyclictest12151-21date08:15:010
7920991714,2cyclictest1114-21lldpd07:10:110
7920991714,2cyclictest10047-21apache_accesses11:55:110
7920991714,2cyclictest10047-21apache_accesses11:55:110
792099171,15cyclictest13341-21chrt11:02:190
792099170,2cyclictest9141-21sshd11:54:080
792099170,2cyclictest6353-21df10:50:120
792099170,2cyclictest5597-21chrt09:53:230
792099170,2cyclictest4814-21fschecks_count11:45:140
792099170,2cyclictest20771-21systemctl07:30:230
792099170,2cyclictest18420-21apache_processe12:10:110
792099170,2cyclictest18123-21awk11:10:180
792099170,2cyclictest14504-21snapd12:20:280
792099170,2cyclictest1155-21cpuspeed_turbos08:50:140
792099170,16cyclictest455-21plymouthd07:55:120
792099170,16cyclictest4453-21expr08:00:140
792099170,16cyclictest32071-21apache_accesses12:35:100
792099170,16cyclictest31769-21apache209:20:150
792099170,16cyclictest29370-21nvmesmart_nvme008:40:200
792099170,16cyclictest23519-21ls12:19:590
792099170,16cyclictest21841-21cnf-update-db08:30:010
792099170,16cyclictest21841-21cnf-update-db08:30:010
792099170,16cyclictest16398-21fschecks_time09:15:150
7922991614,1cyclictest0-21swapper/210:32:152
7922991614,1cyclictest0-21swapper/209:30:132
7922991614,1cyclictest0-21swapper/209:25:192
7922991614,1cyclictest0-21swapper/209:15:232
7922991614,1cyclictest0-21swapper/209:00:222
7922991614,1cyclictest0-21swapper/207:10:152
7922991613,2cyclictest23664-21sed07:35:232
792299160,1cyclictest0-21swapper/208:15:162
792299160,1cyclictest0-21swapper/207:30:152
792299160,15cyclictest9262-21idleruntime10:55:162
792299160,15cyclictest16885-21apache_volume11:10:122
792299160,15cyclictest0-21swapper/212:25:142
792299160,15cyclictest0-21swapper/210:20:182
792299160,15cyclictest0-21swapper/210:00:192
792299160,15cyclictest0-21swapper/208:45:152
7921991614,1cyclictest0-21swapper/112:05:131
7921991614,1cyclictest0-21swapper/112:00:161
7921991614,1cyclictest0-21swapper/111:00:151
7921991614,1cyclictest0-21swapper/109:15:081
7921991614,1cyclictest0-21swapper/109:10:191
7921991614,1cyclictest0-21swapper/108:55:131
7921991614,1cyclictest0-21swapper/108:00:221
7921991613,2cyclictest21922-21http_loadtime09:25:161
792199160,2cyclictest27808-21expr07:45:151
792199160,1cyclictest15094-21dpkg10:10:001
792199160,1cyclictest0-21swapper/111:45:171
792199160,1cyclictest0-21swapper/110:25:011
792199160,1cyclictest0-21swapper/109:07:341
792199160,1cyclictest0-21swapper/108:50:141
792199160,1cyclictest0-21swapper/107:25:191
792199160,15cyclictest12290-21cstates10:05:141
792199160,15cyclictest0-21swapper/110:15:151
792199160,15cyclictest0-21swapper/108:35:141
7920991614,1cyclictest31953-21nfsd408:45:180
7920991614,1cyclictest31463-21apt-get10:40:010
7920991614,1cyclictest24661-21apt-get08:35:130
7920991614,1cyclictest0-21swapper/011:40:120
7920991614,1cyclictest0-21swapper/011:18:060
7920991614,1cyclictest0-21swapper/010:15:100
7920991614,1cyclictest0-21swapper/010:05:160
7920991614,1cyclictest0-21swapper/009:25:130
7920991614,1cyclictest0-21swapper/008:15:190
7920991614,1cyclictest0-21swapper/007:15:150
7920991613,2cyclictest31018-21wc09:40:190
7920991613,2cyclictest27875-21nfsd409:35:180
792099160,2cyclictest3976-21H222:10:210
792099160,2cyclictest0-21swapper/011:35:120
792099160,1cyclictest3450-21gsd-color10:00:150
792099160,1cyclictest0-21swapper/009:55:000
792099160,1cyclictest0-21swapper/007:35:410
792099160,15cyclictest7410-21ls09:00:140
792099160,15cyclictest4099-21H222:10:210
792099160,15cyclictest3976-21H222:10:210
792099160,15cyclictest30393-21ntp_states10:35:190
792099160,15cyclictest23934-21apt-get09:30:130
792099160,15cyclictest23551-21apache_processe10:25:110
792099160,15cyclictest20836-21apt-get10:20:130
792099160,15cyclictest13979-21apache_volume11:05:120
792099160,15cyclictest12948-21apt-get09:10:040
792099160,15cyclictest0-21swapper/009:45:220
792099160,15cyclictest0-21swapper/008:25:020
792199150,14cyclictest0-21swapper/107:20:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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