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2026-03-30 - 22:27
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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 Mar 30, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270599230,5cyclictest0-21swapper/108:05:471
269899230,19cyclictest3741-21latency_hist11:00:000
2705992221,1cyclictest0-21swapper/110:10:561
269899212,17cyclictest0-21swapper/007:45:010
270599208,11cyclictest0-21swapper/110:01:251
269899203,16cyclictest0-21swapper/012:21:350
2709991917,1cyclictest0-21swapper/209:50:402
2709991914,3cyclictest16455-21nvmesmart_nvme009:25:202
270599192,3cyclictest13147-21munin-run08:25:011
2705991916,2cyclictest9672-21awk12:05:191
270599190,18cyclictest0-21swapper/111:57:571
270599190,18cyclictest0-21swapper/111:57:571
270599190,17cyclictest16749-21snapd12:25:181
270999183,1cyclictest28-21ksoftirqd/208:22:422
2709991816,1cyclictest190592sleep210:29:362
2709991815,2cyclictest9781-21smartctl12:05:212
270999180,17cyclictest16745-21snapd09:45:482
270599183,1cyclictest0-21swapper/107:35:121
270599182,2cyclictest30216-21cat07:55:231
270599182,15cyclictest71402chrt08:14:321
270599182,15cyclictest21-21ksoftirqd/107:15:141
270599182,15cyclictest161362sleep110:22:071
2705991815,2cyclictest26907-21awk08:50:001
2705991813,4cyclictest5981-21grep11:00:211
270599181,2cyclictest5787-21grep12:00:131
270599181,2cyclictest32406-21cut08:00:171
270599181,16cyclictest29255-21awk10:45:181
270599181,16cyclictest19752-21if_eno108:35:151
270599181,16cyclictest16861-21egrep10:25:131
270599180,17cyclictest26442-21pzem12:35:201
269899182,15cyclictest27285-21chrt08:50:030
269899180,4cyclictest0-21swapper/010:25:180
2709991715,1cyclictest0-21swapper/210:15:212
2709991714,2cyclictest3989-21H222:10:212
2709991714,2cyclictest30094-21taskset10:48:572
2709991714,2cyclictest30068-21sendmail_mailtr07:55:222
2709991714,2cyclictest24944-21turbostat07:50:012
2709991714,2cyclictest22453-21munin-plugin-st07:45:012
2709991714,2cyclictest15945-21lxd09:06:422
2709991714,2cyclictest1516-21lxd08:42:422
2709991714,2cyclictest14588-21expr10:20:122
2709991714,2cyclictest11519-21apache_volume07:25:112
270999171,15cyclictest26577-21cut11:40:012
270999171,15cyclictest0-21swapper/211:05:142
270999171,15cyclictest0-21swapper/209:00:012
270999170,2cyclictest964-21nfsd411:50:212
270999170,2cyclictest4025-21changes_open22:10:212
270999170,2cyclictest3985-21H222:10:212
270999170,2cyclictest24907-21/usr/sbin/munin12:35:152
270999170,2cyclictest20541-21cat12:25:182
270999170,2cyclictest14947-21munin-plugin-st09:25:012
270999170,1cyclictest0-21swapper/208:16:042
270999170,16cyclictest7105-21smartctl10:05:202
270999170,16cyclictest502-21idleruntime09:55:172
270999170,16cyclictest3979-21H222:10:212
270999170,16cyclictest28406-21missed_timers08:50:182
270999170,16cyclictest26196-21memory10:40:162
270999170,16cyclictest17025-21expr12:20:132
270999170,16cyclictest16823-21latency_hist07:35:012
270999170,16cyclictest16743-21snapd07:15:182
270999170,16cyclictest12039-21sleep09:20:012
2705991716,1cyclictest21-21ksoftirqd/109:30:121
2705991716,0cyclictest0-21swapper/109:45:131
2705991716,0cyclictest0-21swapper/108:15:181
2705991715,1cyclictest7482-21expr11:05:141
2705991715,1cyclictest3989-21H222:10:211
2705991715,1cyclictest21-21ksoftirqd/112:15:171
2705991715,1cyclictest21-21ksoftirqd/109:05:141
2705991715,1cyclictest201rcuc/109:00:181
2705991715,1cyclictest0-21swapper/111:15:171
2705991714,2cyclictest8045-21sed10:09:011
2705991714,2cyclictest21-21ksoftirqd/110:55:191
2705991714,2cyclictest17372-21sed11:20:201
2705991714,2cyclictest10098-21/usr/sbin/munin11:10:111
2705991713,3cyclictest29578-21grep11:45:161
2705991713,3cyclictest0-21swapper/108:50:141
270599171,1cyclictest25667-21apt-config07:50:021
270599171,15cyclictest23778-21mailstats12:30:211
270599171,15cyclictest21-21ksoftirqd/107:30:181
270599171,15cyclictest19442chrt11:52:251
270599171,15cyclictest0-21swapper/110:40:011
270599171,15cyclictest0-21swapper/110:40:011
270599171,15cyclictest0-21swapper/108:40:161
270599170,2cyclictest3991-21H222:10:211
270599170,2cyclictest3582-21expr07:10:121
270599170,2cyclictest30180-21expr08:55:141
270599170,2cyclictest18670-21expr11:25:121
270599170,16cyclictest455-21plymouthd09:35:091
270599170,16cyclictest28235-21pzem_voltage11:40:201
270599170,16cyclictest27211-21sendmail-mta10:41:551
270599170,16cyclictest16264-21nfsd409:25:181
270599170,16cyclictest12890-21systemctl10:15:211
270599170,16cyclictest12135-21cut07:25:131
270599170,16cyclictest0-21swapper/111:40:011
270599170,16cyclictest0-21swapper/107:45:141
269899172,1cyclictest26440-21fschecks_time07:50:160
2698991715,1cyclictest9-21ksoftirqd/007:15:380
2698991715,1cyclictest0-21swapper/010:16:250
2698991715,1cyclictest0-21swapper/009:40:200
2698991714,2cyclictest8768-21anvil07:23:270
2698991714,2cyclictest5074-21timerandwakeup07:10:210
2698991714,2cyclictest3351-21lxd12:36:420
2698991714,2cyclictest30809-21/usr/sbin/munin09:50:200
2698991714,2cyclictest20429-21latency_hist09:35:010
2698991714,2cyclictest17384-21expr07:35:140
2698991714,2cyclictest15784-21idleruntime09:25:160
2698991714,2cyclictest10098-21/usr/sbin/munin11:10:180
269899170,2cyclictest6859-21nfsd412:00:180
269899170,2cyclictest3989-21H222:10:210
269899170,2cyclictest31254-21timerwakeupswit11:45:240
269899170,2cyclictest23955-21expr11:35:140
269899170,2cyclictest16748-21snapd10:12:480
269899170,2cyclictest13993-21apache_processe12:15:110
269899170,16cyclictest9332-21readlink09:15:010
269899170,16cyclictest5601-21lxd10:20:420
269899170,16cyclictest4987-21iwlist11:00:160
269899170,16cyclictest32607-21grep08:00:180
269899170,16cyclictest29401-21kernelversion07:55:180
269899170,16cyclictest27237-21chrt10:42:160
269899170,16cyclictest26879-21cpuspeed_turbos11:40:130
269899170,16cyclictest23328-21hddtemp_smartct07:45:160
269899170,16cyclictest21042-21/usr/sbin/munin11:30:140
269899170,16cyclictest20474-21smtp11:27:560
269899170,16cyclictest1521-21lxd09:06:420
269899170,16cyclictest11223-21cut12:10:010
2709991614,1cyclictest3990-21H222:10:212
2709991614,1cyclictest3990-21H222:10:212
2709991614,1cyclictest3450-21gsd-color09:00:132
2709991614,1cyclictest3122-21cat10:00:122
2709991614,1cyclictest22109-21memory11:30:152
2709991614,1cyclictest18322-21/usr/sbin/munin11:25:102
2709991614,1cyclictest11194-21missed_timers11:10:182
2709991614,1cyclictest0-21swapper/211:20:142
2709991614,1cyclictest0-21swapper/210:55:212
2709991614,1cyclictest0-21swapper/210:35:152
2709991614,1cyclictest0-21swapper/210:35:152
2709991614,1cyclictest0-21swapper/210:30:112
2709991614,1cyclictest0-21swapper/209:35:152
2709991614,1cyclictest0-21swapper/209:30:122
2709991614,1cyclictest0-21swapper/208:45:212
2709991614,1cyclictest0-21swapper/208:25:122
2709991614,1cyclictest0-21swapper/208:10:142
2709991614,1cyclictest0-21swapper/208:00:122
2709991614,1cyclictest0-21swapper/207:50:142
2709991614,1cyclictest0-21swapper/207:35:192
2709991614,1cyclictest0-21swapper/207:21:402
270999160,1cyclictest5148-21cut11:00:162
270999160,1cyclictest30606-21apache_processe10:50:122
270999160,1cyclictest0-21swapper/210:10:152
270999160,1cyclictest0-21swapper/209:10:142
270999160,15cyclictest5656-21apt-get12:00:122
270999160,15cyclictest16311-21cpuspeed_turbos08:30:142
270999160,15cyclictest12909-21cpuspeed_turbos11:15:162
270999160,15cyclictest0-21swapper/212:30:142
270999160,15cyclictest0-21swapper/212:10:122
270999160,15cyclictest0-21swapper/209:40:122
270999160,15cyclictest0-21swapper/208:35:142
2705991614,1cyclictest201rcuc/108:25:191
2705991614,1cyclictest0-21swapper/110:50:141
2705991613,2cyclictest7931-21processes09:10:201
2705991613,2cyclictest23697-21dpkg09:40:011
2705991613,2cyclictest21950-21cat11:30:141
2705991613,2cyclictest0-21swapper/109:55:191
270599161,1cyclictest201rcuc/108:30:221
270599161,1cyclictest201rcuc/107:25:021
270599160,15cyclictest0-21swapper/112:10:161
270599160,15cyclictest0-21swapper/110:30:141
270599160,15cyclictest0-21swapper/109:50:211
270599160,15cyclictest0-21swapper/107:45:011
2698991614,1cyclictest0-21swapper/012:10:170
2698991614,1cyclictest0-21swapper/011:20:160
2698991614,1cyclictest0-21swapper/011:05:010
2698991614,1cyclictest0-21swapper/010:50:220
2698991614,1cyclictest0-21swapper/010:45:130
2698991614,1cyclictest0-21swapper/010:30:170
2698991614,1cyclictest0-21swapper/010:05:140
2698991614,1cyclictest0-21swapper/010:00:120
2698991614,1cyclictest0-21swapper/009:45:020
2698991614,1cyclictest0-21swapper/009:20:140
2698991614,1cyclictest0-21swapper/008:55:140
2698991614,1cyclictest0-21swapper/008:35:230
2698991614,1cyclictest0-21swapper/008:35:010
2698991614,1cyclictest0-21swapper/008:25:100
2698991614,1cyclictest0-21swapper/008:15:150
2698991614,1cyclictest0-21swapper/008:05:130
2698991614,1cyclictest0-21swapper/007:30:130
2698991613,1cyclictest0-21swapper/009:55:140
269899160,1cyclictest21085-21df09:35:130
269899160,1cyclictest0-21swapper/011:55:150
269899160,1cyclictest0-21swapper/011:55:150
269899160,1cyclictest0-21swapper/011:50:240
269899160,1cyclictest0-21swapper/008:10:160
269899160,15cyclictest6407-21/usr/sbin/munin09:10:130
269899160,15cyclictest25634-21memory08:45:180
269899160,15cyclictest15945-21lxd08:42:420
269899160,15cyclictest14067-21nfsd411:15:200
269899160,15cyclictest0-21swapper/012:25:160
269899160,15cyclictest0-21swapper/010:35:140
269899160,15cyclictest0-21swapper/010:35:140
269899160,15cyclictest0-21swapper/008:20:140
269899160,15cyclictest0-21swapper/007:27:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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