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2025-12-25 - 17:34
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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 Thu Dec 25, 2025 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3190399263,22cyclictest0-21swapper/012:09:010
3190399240,2cyclictest17200-21grep07:40:120
3190899232,17cyclictest0-21swapper/107:29:351
3190399230,2cyclictest4229-21latency_hist08:15:020
3190399230,2cyclictest24829-21perf11:45:000
3190399230,2cyclictest21941-21nfsd412:35:170
3190399230,21cyclictest10779-21postgres09:21:210
3190399230,16cyclictest8286-21grep12:10:170
3190899220,21cyclictest0-21swapper/111:35:161
3190399223,18cyclictest0-21swapper/011:30:000
3190399221,4cyclictest0-21swapper/009:40:000
31903992213,8cyclictest2007-21systemd-journal09:15:510
3190399221,2cyclictest30295-21latency_hist11:55:000
3190399220,2cyclictest5623-21latency_hist07:20:020
3190399220,2cyclictest26751-21smartctl07:55:160
3190399220,2cyclictest21747-21expr08:45:140
3190399220,1cyclictest10938-21latency08:25:160
3190399220,1cyclictest0-21swapper/012:30:190
3190399220,1cyclictest0-21swapper/010:00:140
3190399220,1cyclictest0-21swapper/008:04:020
3190399220,16cyclictest16399-21chrt07:38:340
31908992117,3cyclictest0-21swapper/111:13:281
31903992115,5cyclictest32762sleep012:01:040
31903992115,5cyclictest15527-21tr10:30:140
31903992113,6cyclictest31025-21nvmesmart_nvme009:00:170
3190399211,1cyclictest0-21swapper/007:25:120
3190399211,15cyclictest26521-21awk09:50:180
3190399210,2cyclictest25525-21awk08:50:190
3190399210,2cyclictest25525-21awk08:50:180
3190399210,2cyclictest25423-21awk10:45:160
3190399210,2cyclictest24650-21chrt07:51:250
3190399210,2cyclictest12992-21processes09:25:200
3190399210,20cyclictest22116-21chrt09:44:330
3190399210,1cyclictest3647-21tune2fs11:05:140
3190399210,1cyclictest22252chrt11:03:450
3190399210,1cyclictest0-21swapper/012:21:020
3190399210,1cyclictest0-21swapper/011:35:130
3190399210,1cyclictest0-21swapper/011:00:010
3190399210,1cyclictest0-21swapper/010:50:150
3190399210,1cyclictest0-21swapper/008:40:150
3190399210,17cyclictest1351-21lxd10:36:410
3190399210,16cyclictest26016-21if_eno111:45:160
3190399210,15cyclictest2280-21ls10:05:190
3190399210,15cyclictest1380-21processes07:10:190
3190399210,14cyclictest0-21swapper/010:45:010
3191299200,16cyclictest0-21swapper/211:07:432
31908992018,1cyclictest8446-21ntp_kernel_pll_12:10:171
3190899200,13cyclictest0-21swapper/110:28:461
31903992014,5cyclictest29377-21latency_hist09:00:010
31903992014,5cyclictest20907-21missed_timers07:45:180
31903992014,5cyclictest0-21swapper/012:15:170
31903992014,5cyclictest0-21swapper/009:45:170
31903992014,5cyclictest0-21swapper/008:35:120
31903992013,6cyclictest15722-21cut08:35:010
3190399200,3cyclictest0-21swapper/011:15:220
3190399200,2cyclictest843-21systemd-network11:33:540
3190399200,2cyclictest3987-21H222:10:210
3190399200,2cyclictest17713-21latency_hist12:30:010
3190399200,1cyclictest0-21swapper/011:55:140
3190399200,1cyclictest0-21swapper/011:55:130
3190399200,1cyclictest0-21swapper/011:10:200
3190399200,1cyclictest0-21swapper/010:15:170
3190399200,1cyclictest0-21swapper/009:55:130
3190399200,1cyclictest0-21swapper/007:31:190
3190399200,1cyclictest0-21swapper/007:31:190
3190399200,19cyclictest7353-21cpuspeed_turbos08:20:160
3190399200,19cyclictest7173-21ps07:20:210
3190399200,15cyclictest15024-21cat10:29:590
3190399200,14cyclictest0-21swapper/009:10:000
31912991916,2cyclictest4035-21H222:10:212
3191299190,18cyclictest843-21systemd-network11:48:192
3191299190,18cyclictest0-21swapper/211:02:162
31908991917,1cyclictest21-21ksoftirqd/108:00:171
31908991915,3cyclictest0-21swapper/109:30:361
31903991914,4cyclictest307842chrt08:05:020
3190399190,2cyclictest0-21swapper/010:12:500
3190399190,2cyclictest0-21swapper/010:12:490
3190399190,1cyclictest4979-21sed09:10:220
3190399190,1cyclictest0-21swapper/010:20:160
3190399190,0cyclictest0-21swapper/008:18:360
3191299182,2cyclictest7736-21seq07:21:212
3191299182,15cyclictest28-21ksoftirqd/209:09:052
31912991816,1cyclictest28-21ksoftirqd/208:22:382
31912991816,1cyclictest0-21swapper/209:26:132
31912991815,2cyclictest8538-21ntp_offset10:15:172
31912991815,2cyclictest10973-21taskset07:28:522
31912991814,3cyclictest3987-21H222:10:212
31912991814,3cyclictest1483-21snapd09:42:392
3191299181,1cyclictest0-21swapper/209:50:162
3191299181,16cyclictest3991-21H222:10:212
3191299180,17cyclictest3983-21H222:10:212
3191299180,17cyclictest1481-21snapd07:52:392
3191299180,17cyclictest1057-21cron09:35:012
31908991816,1cyclictest21-21ksoftirqd/111:28:081
31908991816,1cyclictest21-21ksoftirqd/108:19:161
31908991816,1cyclictest21-21ksoftirqd/107:40:131
31908991815,3cyclictest21-21ksoftirqd/108:08:431
31908991815,2cyclictest8477-21cat09:20:011
31908991815,2cyclictest26844-21processes07:55:181
31908991815,2cyclictest0-21swapper/108:48:551
3190899180,3cyclictest24579-21find07:50:351
3190899180,2cyclictest3976-21H222:10:211
3190899180,17cyclictest3979-21H222:10:211
3190899180,17cyclictest3976-21H222:10:211
3190899180,15cyclictest0-21swapper/111:21:511
3190899180,15cyclictest0-21swapper/109:55:171
3190399180,17cyclictest0-21swapper/009:30:230
31912991715,1cyclictest3987-21H222:10:212
31912991715,1cyclictest11490-21apache_accesses07:30:142
31912991715,1cyclictest11490-21apache_accesses07:30:132
31912991715,1cyclictest0-21swapper/208:40:132
31912991715,1cyclictest0-21swapper/207:45:202
31912991714,2cyclictest7730-21fschecks_time12:10:142
31912991714,2cyclictest5930-21proc_pri08:15:202
31912991714,2cyclictest399-20systemd-journal07:40:022
31912991714,2cyclictest3987-21H222:10:212
31912991714,2cyclictest26479-21munin-run08:55:012
31912991714,2cyclictest26479-21munin-run08:55:002
31912991714,2cyclictest23237-21fschecks_time09:45:142
31912991714,2cyclictest20813-21netstat11:35:172
31912991714,2cyclictest1589-21ls10:05:152
31912991714,2cyclictest12933-21cat10:25:132
31912991714,1cyclictest0-21swapper/208:00:362
31912991712,4cyclictest1829-21systemd-journal10:42:592
3191299170,2cyclictest540-21cron12:00:002
3191299170,2cyclictest540-21cron12:00:002
3191299170,2cyclictest3976-21H222:10:212
3191299170,2cyclictest3414-21master11:16:142
3191299170,2cyclictest27952-21apache_processe11:50:122
3191299170,2cyclictest16259-21expr08:35:122
3191299170,16cyclictest7276-21taskset09:15:182
3191299170,16cyclictest5071-21chrt07:17:232
3191299170,16cyclictest4077-21perf08:15:012
3191299170,16cyclictest3989-21H222:10:212
3191299170,16cyclictest3989-21H222:10:212
3191299170,16cyclictest32166-21/usr/sbin/munin07:10:102
3191299170,16cyclictest30905-21tr10:00:132
3191299170,16cyclictest29064-21/usr/sbin/munin09:55:172
3191299170,16cyclictest26617-21grep07:55:162
3191299170,16cyclictest1525-21lxd10:52:412
3191299170,16cyclictest14332-21grep11:25:122
3191299170,16cyclictest14110-21sed08:30:162
3191299170,16cyclictest11358-21find12:15:202
31908991714,2cyclictest7754-21fschecks_count10:15:141
31908991714,2cyclictest5650-21grep10:10:191
31908991714,2cyclictest5650-21grep10:10:191
31908991714,2cyclictest3976-21H222:10:211
31908991714,2cyclictest29808-21cpuspeed_turbos09:00:131
31908991714,2cyclictest2441-21awk10:05:181
31908991714,2cyclictest17660-21idleruntime11:30:161
31908991714,2cyclictest14893-21fschecks_time07:35:151
31908991714,2cyclictest1486-21snapd10:55:271
31908991714,2cyclictest11499-21apt-get07:30:151
31908991714,2cyclictest11499-21apt-get07:30:141
3190899171,15cyclictest0-21swapper/110:44:391
3190899170,2cyclictest3991-21H222:10:211
3190899170,2cyclictest28345-21wc08:55:191
3190899170,2cyclictest20889-21memory07:45:181
3190899170,2cyclictest1478-21snapd11:05:391
3190899170,16cyclictest993-21dbus-daemon09:50:191
3190899170,16cyclictest5719-21pzem_energy12:05:181
3190899170,16cyclictest4035-21H222:10:211
3190899170,16cyclictest3987-21H222:10:211
3190899170,16cyclictest3979-21H222:10:211
3190899170,16cyclictest2069-21systemd-udevd12:00:521
3190899170,16cyclictest18710-21hddtemp_smartct12:30:151
3190899170,16cyclictest1856-21systemd-udevd08:40:521
3190899170,16cyclictest18259-21find10:35:011
3190899170,16cyclictest0-21swapper/108:12:521
31912991615,1cyclictest0-21swapper/210:34:342
31912991615,1cyclictest0-21swapper/210:23:592
31912991614,1cyclictest14817-21fschecks_count07:35:152
31912991614,1cyclictest0-21swapper/212:30:192
31912991614,1cyclictest0-21swapper/212:25:142
31912991614,1cyclictest0-21swapper/212:05:152
31912991614,1cyclictest0-21swapper/208:45:142
31912991613,2cyclictest2629-21ps12:00:202
3191299160,1cyclictest24351-21grep10:45:132
3191299160,1cyclictest0-21swapper/211:30:152
3191299160,1cyclictest0-21swapper/209:35:112
3191299160,15cyclictest5696-21pluginstate09:15:012
3191299160,15cyclictest23034-21expr11:40:112
3191299160,15cyclictest0-21swapper/212:20:142
3191299160,15cyclictest0-21swapper/211:10:122
3191299160,15cyclictest0-21swapper/210:55:162
31908991614,1cyclictest24198-21cpu08:50:141
31908991614,1cyclictest24198-21cpu08:50:141
31908991614,1cyclictest0-21swapper/112:25:221
31908991614,1cyclictest0-21swapper/111:55:131
31908991614,1cyclictest0-21swapper/111:55:121
31908991614,1cyclictest0-21swapper/110:45:131
31908991614,1cyclictest0-21swapper/109:10:181
31908991614,1cyclictest0-21swapper/109:07:531
31908991614,1cyclictest0-21swapper/108:25:121
31908991614,1cyclictest0-21swapper/107:15:151
31908991613,2cyclictest28180-21grep11:50:141
31908991612,3cyclictest4035-21H222:10:211
3190899160,2cyclictest32280-21/usr/sbin/munin11:00:191
3190899160,1cyclictest3976-21H222:10:211
3190899160,1cyclictest0-21swapper/112:15:171
3190899160,1cyclictest0-21swapper/110:50:201
3190899160,1cyclictest0-21swapper/110:30:191
3190899160,1cyclictest0-21swapper/108:21:341
3190899160,15cyclictest4099-21H222:10:211
3190899160,15cyclictest20919-21expr12:35:131
3190899160,15cyclictest0-21swapper/109:45:141
3190899160,15cyclictest0-21swapper/109:35:131
3190899160,15cyclictest0-21swapper/109:20:171
31908991511,2cyclictest0-21swapper/108:30:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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