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2026-03-16 - 15:25
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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 all highest latencies:
System rackdslot0.osadl.org (updated Mon Mar 16, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2369499230,5cyclictest0-21swapper/112:04:391
2369499230,5cyclictest0-21swapper/107:27:121
23695992117,3cyclictest0-21swapper/208:40:172
2369499212,18cyclictest32139-21munin-run07:25:011
2369499210,3cyclictest0-21swapper/110:14:031
2369499209,1cyclictest0-21swapper/111:45:001
2369499202,17cyclictest0-21swapper/109:54:571
2369499200,17cyclictest0-21swapper/111:47:011
2369399206,13cyclictest0-21swapper/012:03:170
2369399204,15cyclictest0-21swapper/007:45:010
23693992013,4cyclictest7550-21cstates11:25:140
2369599194,9cyclictest28999-21sed12:05:012
23695991914,4cyclictest30030-21cpuspeed_turbos10:10:152
2369499193,2cyclictest30945-21latency_hist11:10:011
2369499193,1cyclictest10042-21expr09:35:131
2369499192,16cyclictest25638-21cut09:05:141
2369499192,16cyclictest21507-21basename08:00:161
23693991915,3cyclictest0-21swapper/010:32:520
23693991915,3cyclictest0-21swapper/010:32:520
23693991914,3cyclictest0-21swapper/011:58:460
2369399190,3cyclictest0-21swapper/011:13:050
2369399190,18cyclictest2328-21nfsd409:20:180
2369599181,2cyclictest3053-21systemd-logind08:24:532
2369599181,2cyclictest3053-21systemd-logind08:24:522
2369599181,16cyclictest20845-21munin-plugin-st11:50:002
2369599180,17cyclictest426-21systemd-udevd07:36:522
2369599180,16cyclictest0-21swapper/210:50:142
2369499182,15cyclictest25321-21expr07:10:181
23694991818,0cyclictest0-21swapper/108:10:161
2369499181,16cyclictest9416-21idleruntime-cro07:40:011
2369499180,3cyclictest13940-21sed10:39:001
2369399182,15cyclictest4035-21H222:10:210
2369399182,15cyclictest4035-21H222:10:210
2369399182,15cyclictest3985-21H222:10:210
23693991815,2cyclictest8084-21grep09:30:180
23693991814,3cyclictest14229-21nfsd409:40:180
23693991814,3cyclictest0-21swapper/009:54:000
23693991813,4cyclictest0-21swapper/012:25:000
23693991813,3cyclictest0-21swapper/011:15:450
2369399181,16cyclictest14074-21latency_hist12:35:000
2369399180,4cyclictest0-21swapper/007:33:440
2369399180,17cyclictest843-21systemd-network11:23:530
2369599172,1cyclictest151212sleep209:43:172
23695991715,1cyclictest28-21ksoftirqd/209:30:152
23695991715,1cyclictest0-21swapper/207:45:222
23695991714,2cyclictest7772-21sendmail-mta08:31:332
23695991714,2cyclictest31005-21pzem_energy08:15:212
23695991714,2cyclictest3053-21systemd-logind07:24:522
23695991714,2cyclictest30187-21cron09:15:002
23695991714,2cyclictest27169-21ls08:10:152
23695991714,2cyclictest25959-21ls09:05:172
23695991714,2cyclictest24218-21expr11:55:132
23695991714,2cyclictest21099-21/usr/sbin/munin09:55:222
23695991714,2cyclictest11772-21timerandwakeup11:30:212
23695991714,2cyclictest11597-21egrep10:35:122
23695991714,2cyclictest10991-21smartctl09:35:192
23695991714,2cyclictest0-21swapper/211:35:132
23695991713,3cyclictest5240-21grep11:20:142
23695991713,3cyclictest2994-21cat09:20:222
23695991713,2cyclictest11843-21cpuspeed_turbos12:30:112
2369599170,2cyclictest4029-21chrt11:19:112
2369599170,2cyclictest24963-21fschecks_time10:00:142
2369599170,2cyclictest2068-21threads07:25:222
2369599170,2cyclictest15176-21fschecks_time10:40:152
2369599170,2cyclictest1484-21snapd10:55:032
2369599170,1cyclictest0-21swapper/208:50:152
2369599170,16cyclictest7492-21cut12:20:172
2369599170,16cyclictest4225-21nfsd408:25:192
2369599170,16cyclictest3989-21H222:10:212
2369599170,16cyclictest27482-21idleruntime07:15:152
2369599170,16cyclictest25453-21master08:05:462
2369599170,16cyclictest20325-21perf08:00:012
2369599170,16cyclictest17922-21grep10:45:142
2369599170,16cyclictest17038-21cat12:40:002
2369599170,16cyclictest1348-21lxd08:02:422
2369599170,16cyclictest0-21swapper/211:25:012
2369599170,16cyclictest0-21swapper/210:15:182
2369499172,1cyclictest199812sleep107:55:511
2369499172,1cyclictest0-21swapper/110:55:131
23694991715,1cyclictest0-21swapper/109:30:211
23694991714,2cyclictest9184-21http_loadtime08:35:141
23694991714,2cyclictest3544-21fschecks_count08:25:151
23694991714,2cyclictest29819-21users09:10:211
23694991714,2cyclictest29465-21/usr/sbin/munin08:15:151
23694991714,2cyclictest21990-21irqstats11:50:161
23694991714,2cyclictest21990-21irqstats11:50:161
2369499171,15cyclictest993-21dbus-daemon07:40:221
2369499171,15cyclictest0-21swapper/112:05:151
2369499170,2cyclictest24142-21sed10:00:011
2369499170,2cyclictest23526-21grep08:05:131
2369499170,2cyclictest21352-21timerandwakeup08:55:201
2369499170,2cyclictest1974-21chrt08:21:141
2369499170,2cyclictest1974-21chrt08:21:141
2369499170,2cyclictest16413-21perf08:50:001
2369499170,1cyclictest0-21swapper/110:21:001
2369499170,16cyclictest940-21smartctl10:15:161
2369499170,16cyclictest8076-21sed12:20:211
2369499170,16cyclictest6843-21sshd11:24:541
2369499170,16cyclictest6422-21munin-plugin-st07:35:011
2369499170,16cyclictest31681-21missed_timers09:15:161
2369499170,16cyclictest3092-21cat12:15:001
2369499170,16cyclictest2951-21/usr/sbin/munin09:20:221
2369499170,16cyclictest27967-21nfsd407:15:181
2369499170,16cyclictest27665-21fschecks_time10:05:151
2369499170,16cyclictest14489-21proxymap07:45:231
2369499170,16cyclictest12090-21ls12:30:121
2369499170,16cyclictest0-21swapper/110:30:131
2369499170,16cyclictest0-21swapper/110:30:131
2369499170,0cyclictest0-21swapper/109:00:211
23693991715,1cyclictest23735-21cstates08:05:130
23693991715,1cyclictest0-21swapper/012:37:460
23693991715,1cyclictest0-21swapper/012:25:130
23693991714,2cyclictest24748-21cut09:05:000
23693991714,2cyclictest19620-21grep11:45:180
23693991714,2cyclictest16886-21nfsd409:45:170
23693991714,2cyclictest1526-21lxd10:42:420
23693991714,2cyclictest14100-21dpkg08:45:130
23693991713,3cyclictest31823-21perf08:20:000
23693991713,3cyclictest11680-21snapd07:37:390
2369399171,15cyclictest4047-21load08:25:180
2369399171,15cyclictest0-21swapper/007:15:180
2369399170,2cyclictest968-21idleruntime10:15:150
2369399170,2cyclictest32658-21/usr/sbin/munin12:10:120
2369399170,2cyclictest3178-21/usr/sbin/munin10:20:120
2369399170,2cyclictest31094-21basename07:20:210
2369399170,2cyclictest28745-21wc10:05:210
2369399170,2cyclictest26651-21apt-key08:10:020
2369399170,2cyclictest23999-21acpi07:10:110
2369399170,2cyclictest19393-21smtpd10:48:170
2369399170,2cyclictest10291-21ls08:35:210
2369399170,16cyclictest4648-21grep12:15:180
2369399170,16cyclictest28004-21lxd09:16:420
2369399170,16cyclictest28004-21lxd07:58:420
2369399170,16cyclictest26370-21ntpq09:05:180
2369399170,16cyclictest25430-21apache_volume11:00:110
2369399170,16cyclictest16829-21awk07:50:200
2369399170,16cyclictest13610-21wc07:45:180
2369399170,16cyclictest12902-21nfsd410:35:160
2369399170,16cyclictest1079-21cups-browsed07:25:220
23695991614,2cyclictest0-21swapper/212:10:172
23695991614,1cyclictest3979-21H222:10:212
23695991614,1cyclictest15370-21wc07:50:132
23695991614,1cyclictest10246-21ntpq10:30:182
23695991614,1cyclictest10246-21ntpq10:30:182
23695991614,1cyclictest0-21swapper/212:15:212
23695991614,1cyclictest0-21swapper/210:20:132
23695991614,1cyclictest0-21swapper/210:05:212
23695991614,1cyclictest0-21swapper/209:25:112
23695991613,2cyclictest10203-21expr07:40:152
2369599160,1cyclictest0-21swapper/209:45:132
2369599160,15cyclictest31412-21expr11:10:132
2369599160,15cyclictest31406-21if_eno109:15:142
2369599160,15cyclictest20011-21expr08:55:132
2369599160,15cyclictest10064-21strings12:25:152
2369599160,15cyclictest0-21swapper/212:05:102
2369599160,15cyclictest0-21swapper/211:50:132
2369599160,15cyclictest0-21swapper/211:50:132
2369599160,15cyclictest0-21swapper/211:40:152
2369599160,15cyclictest0-21swapper/211:05:142
2369599160,15cyclictest0-21swapper/209:50:152
2369599160,15cyclictest0-21swapper/209:00:132
2369599160,15cyclictest0-21swapper/208:45:222
2369599160,15cyclictest0-21swapper/208:35:102
2369599160,15cyclictest0-21swapper/207:30:012
23694991614,1cyclictest0-21swapper/111:35:131
23694991614,1cyclictest0-21swapper/111:30:191
23694991614,1cyclictest0-21swapper/109:40:011
23694991614,1cyclictest0-21swapper/108:31:141
23694991613,2cyclictest19925-21taskset10:50:021
2369499160,2cyclictest4822-21fschecks_time09:25:141
2369499160,2cyclictest3233-21dpkg12:15:121
2369499160,2cyclictest25428-21apache_processe11:00:111
2369499160,2cyclictest24163-21expr11:55:121
2369499160,1cyclictest15273-21apache_accesses07:50:111
2369499160,1cyclictest0-21swapper/110:45:131
2369499160,15cyclictest9010-21grep11:25:221
2369499160,15cyclictest455-21plymouthd12:35:081
2369499160,15cyclictest21461-21expr09:55:131
2369499160,15cyclictest17519-21hddtemp_smartct08:50:151
2369499160,15cyclictest0-21swapper/112:25:091
2369499160,15cyclictest0-21swapper/111:15:111
2369499160,15cyclictest0-21swapper/110:40:141
2369499160,15cyclictest0-21swapper/110:25:131
2369499160,15cyclictest0-21swapper/109:45:141
2369499160,15cyclictest0-21swapper/108:40:181
23693991614,1cyclictest6487-21idleruntime08:30:140
23693991614,1cyclictest12869-21awk08:40:200
23693991614,1cyclictest0-21swapper/012:05:230
23693991614,1cyclictest0-21swapper/011:35:170
23693991614,1cyclictest0-21swapper/010:55:110
23693991614,1cyclictest0-21swapper/010:25:160
23693991614,1cyclictest0-21swapper/009:55:120
23693991614,1cyclictest0-21swapper/009:35:190
23693991614,1cyclictest0-21swapper/009:25:200
23693991614,1cyclictest0-21swapper/008:55:100
23693991614,1cyclictest0-21swapper/008:50:170
2369399160,1cyclictest0-21swapper/010:10:010
2369399160,1cyclictest0-21swapper/008:00:140
2369399160,15cyclictest29072-21/usr/sbin/munin11:05:160
2369399160,15cyclictest27869-21/usr/sbin/munin09:10:130
2369399160,15cyclictest24106-21gpgv10:00:010
2369399160,15cyclictest1053-21grep08:20:180
2369399160,15cyclictest1053-21grep08:20:180
2369399160,15cyclictest10148-21expr11:30:130
23693991514,1cyclictest0-21swapper/010:50:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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