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2026-08-02 - 17:21
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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 Sun Aug 02, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1344399255,1cyclictest0-21swapper/008:55:160
1344399243,20cyclictest0-21swapper/011:55:010
1344399242,1cyclictest0-21swapper/011:35:160
1344799230,23cyclictest0-21swapper/111:50:181
1344399230,22cyclictest19230-21sendmail-msp07:20:000
1344399226,14cyclictest0-21swapper/007:25:400
1344399225,15cyclictest3983-21H222:10:210
1344399222,2cyclictest3978-21H222:10:210
1344399222,18cyclictest0-21swapper/009:11:380
13443992214,7cyclictest20460-21expr11:10:150
1344399220,2cyclictest15799-21sort09:05:230
1344399220,21cyclictest977-21sed07:45:010
1344399220,21cyclictest4628-21mailstats10:40:200
1344399220,21cyclictest31291-21chrt08:36:500
1344399220,21cyclictest17126-21apache_volume11:05:110
1344399220,21cyclictest11861-21sed09:55:230
1344399220,21cyclictest0-21swapper/011:45:110
1344399220,20cyclictest3976-21H222:10:210
1344399220,20cyclictest0-21swapper/009:03:130
1344399220,1cyclictest0-21swapper/010:24:020
1344399220,1cyclictest0-21swapper/007:10:360
1344399220,16cyclictest17064-21latency_hist11:05:020
1345299210,3cyclictest0-21swapper/211:11:142
13443992114,6cyclictest28998-21perf10:30:000
13443992114,6cyclictest25372-21mailstats08:25:220
13443992114,6cyclictest0-21swapper/010:05:510
13443992114,6cyclictest0-21swapper/009:30:160
1344399210,2cyclictest29468-21cat12:25:000
1344399210,20cyclictest6736-21chrt11:42:220
1344399210,20cyclictest3450-21gsd-color08:30:020
1344399210,20cyclictest0-21swapper/009:55:000
1344399210,1cyclictest19076-21fschecks_count10:10:140
1344399210,1cyclictest0-21swapper/012:35:100
1344399210,1cyclictest0-21swapper/012:05:000
1344399210,1cyclictest0-21swapper/010:55:220
1344399210,19cyclictest20663-21missed_timers09:15:150
1344399210,19cyclictest0-21swapper/012:31:210
1344399210,19cyclictest0-21swapper/012:31:200
1344399210,16cyclictest32238-21awk11:30:180
1344399210,16cyclictest29942-21timerandwakeup11:25:210
1344399210,16cyclictest23898-21cron12:15:010
1344399210,16cyclictest21954-21nfsd408:20:200
1344399210,16cyclictest1021-21expr10:35:190
1344399210,15cyclictest4820-21grep09:45:150
1344399210,15cyclictest31359-21/usr/sbin/munin12:25:220
1344399210,15cyclictest0-21swapper/011:55:180
1345299203,11cyclictest0-21swapper/207:50:432
13452992018,1cyclictest0-21swapper/212:37:232
13452992017,2cyclictest9102-21tr10:50:152
13452992013,6cyclictest843-21systemd-network10:59:502
1344799200,19cyclictest0-21swapper/110:05:521
1344799200,18cyclictest30531-21dump-pmu-power11:30:011
13443992014,5cyclictest32140-21acpi08:40:120
13443992014,5cyclictest32140-21acpi08:40:110
13443992014,5cyclictest24253-21sed09:20:220
13443992014,5cyclictest19397-21grep12:05:150
13443992014,5cyclictest0-21swapper/010:45:120
13443992014,5cyclictest0-21swapper/007:50:150
1344399200,1cyclictest29734-21ls10:30:140
1344399200,1cyclictest0-21swapper/009:38:590
1344399200,1cyclictest0-21swapper/007:30:170
1344399200,1cyclictest0-21swapper/007:20:140
1344399200,19cyclictest0-21swapper/012:15:140
1344399200,19cyclictest0-21swapper/010:17:330
1344399200,19cyclictest0-21swapper/008:10:130
1344399200,15cyclictest0-21swapper/009:26:330
1344399200,15cyclictest0-21swapper/008:45:100
1345299193,15cyclictest19454-21proc_pri08:15:192
1345299190,1cyclictest0-21swapper/208:05:232
1345299190,18cyclictest19598-21dump-pmu-power11:10:002
1345299190,16cyclictest3981-21H222:10:212
1345299190,15cyclictest0-21swapper/211:30:202
13447991916,2cyclictest5566-21sessionclean12:39:011
1344799191,3cyclictest14499-21snapd12:30:001
1344799190,16cyclictest3991-21H222:10:211
1344799190,16cyclictest3976-21H222:10:211
13443991914,4cyclictest0-21swapper/008:15:210
13443991913,5cyclictest0-21swapper/007:45:170
13443991913,5cyclictest0-21swapper/007:35:200
1344399190,18cyclictest0-21swapper/009:40:210
1344399190,18cyclictest0-21swapper/008:55:020
1344399190,18cyclictest0-21swapper/008:05:070
1344399190,18cyclictest0-21swapper/008:00:190
1344399190,0cyclictest0-21swapper/011:15:130
1344399190,0cyclictest0-21swapper/007:58:110
1345299182,15cyclictest4035-21H222:10:212
1345299182,0cyclictest0-21swapper/212:14:392
13452991816,1cyclictest0-21swapper/207:40:162
13452991816,1cyclictest0-21swapper/207:23:522
13452991816,1cyclictest0-21swapper/207:15:192
13452991815,2cyclictest455-21plymouthd12:25:142
13452991815,2cyclictest3991-21H222:10:212
1345299181,2cyclictest3981-21H222:10:212
1345299181,16cyclictest0-21swapper/208:24:582
1345299180,2cyclictest3979-21H222:10:212
1345299180,17cyclictest0-21swapper/210:45:132
1345299180,16cyclictest21777-21fschecks_count10:15:142
1345299180,15cyclictest3983-21H222:10:212
1344799182,15cyclictest0-21swapper/109:18:281
13447991815,2cyclictest0-21swapper/111:30:131
13447991814,3cyclictest3981-21H222:10:211
13447991814,3cyclictest3981-21H222:10:211
13447991814,3cyclictest15945-21lxd08:16:461
13447991812,5cyclictest843-21systemd-network12:02:121
1344799180,3cyclictest3983-21H222:10:211
1344799180,2cyclictest4035-21H222:10:211
1344799180,2cyclictest3979-21H222:10:211
1344799180,17cyclictest4099-21H222:10:211
1344799180,17cyclictest3989-21H222:10:211
1344799180,16cyclictest399-20systemd-journal10:40:011
1344799180,16cyclictest3983-21H222:10:211
13452991715,1cyclictest0-21swapper/208:55:242
13452991714,2cyclictest4099-21H222:10:212
13452991714,2cyclictest3981-21H222:10:212
13452991714,2cyclictest3976-21H222:10:212
13452991714,2cyclictest23692-21cat09:20:182
13452991714,2cyclictest15693-21cpuspeed_turbos10:05:122
13452991714,2cyclictest13560-21expr11:55:142
13452991714,2cyclictest1353-21mailstats10:35:212
13452991713,3cyclictest985-21munin-run09:40:002
1345299171,15cyclictest3983-21H222:10:212
1345299171,15cyclictest32237-21cpuspeed_turbos08:40:142
1345299171,15cyclictest32237-21cpuspeed_turbos08:40:142
1345299171,15cyclictest0-21swapper/212:30:192
1345299171,15cyclictest0-21swapper/212:30:192
1345299171,15cyclictest0-21swapper/207:34:172
1345299170,2cyclictest4035-21H222:10:212
1345299170,2cyclictest30524-21grep08:35:182
1345299170,2cyclictest25207-21nfsd410:20:192
1345299170,2cyclictest1964-21expr09:40:132
1345299170,2cyclictest14501-21snapd09:00:282
1345299170,1cyclictest3983-21H222:10:212
1345299170,1cyclictest0-21swapper/207:46:102
1345299170,16cyclictest7367-21/usr/sbin/munin11:45:102
1345299170,16cyclictest3983-21H222:10:212
1345299170,16cyclictest29728-21sendmail_mailqu09:30:222
1345299170,16cyclictest28972-21cron10:30:012
1345299170,16cyclictest20323-21idleruntime09:15:142
1345299170,16cyclictest14504-21snapd10:40:282
1345299170,16cyclictest14280-21df07:10:162
1345299170,16cyclictest13670-21if_err_enp1s010:00:152
1345299170,16cyclictest12013-21pzem_current11:50:222
1345299170,16cyclictest0-21swapper/212:15:132
1345299170,16cyclictest0-21swapper/212:05:142
1345299170,16cyclictest0-21swapper/209:48:472
13447991714,2cyclictest455-21plymouthd12:20:131
13447991714,2cyclictest30442-21memory10:30:181
13447991714,2cyclictest24331-21apache_processe12:15:131
13447991714,2cyclictest21266-21cpuspeed_turbos10:15:141
13447991714,2cyclictest15126-21http_loadtime11:00:151
13447991714,2cyclictest14496-21snapd09:55:581
13447991713,3cyclictest924-21proxymap09:41:181
1344799171,15cyclictest4214-21needreboot10:40:161
1344799170,2cyclictest4099-21H222:10:211
1344799170,2cyclictest4035-21H222:10:211
1344799170,2cyclictest3979-21H222:10:211
1344799170,2cyclictest32523-21/usr/sbin/munin12:30:121
1344799170,2cyclictest32523-21/usr/sbin/munin12:30:111
1344799170,2cyclictest29674-21ls07:35:231
1344799170,2cyclictest1523-21lxd07:14:451
1344799170,16cyclictest8886-21/usr/sbin/munin10:50:231
1344799170,16cyclictest26788-21grep11:20:181
1344799170,16cyclictest26351-21nfsd407:30:171
1344799170,16cyclictest25135-21sed11:20:001
1344799170,16cyclictest20815-21grep08:20:151
1344799170,16cyclictest14496-21snapd07:43:001
1344799170,16cyclictest12436-21nfsd409:00:181
1344799170,16cyclictest11879-21ls10:55:141
1344799170,16cyclictest0-21swapper/108:51:341
1344799170,16cyclictest0-21swapper/108:26:031
1344799170,15cyclictest3989-21H222:10:211
1344799170,15cyclictest3981-21H222:10:211
13452991614,1cyclictest0-21swapper/209:25:062
13452991614,1cyclictest0-21swapper/208:50:142
13452991614,1cyclictest0-21swapper/207:35:222
13452991613,2cyclictest3976-21H222:10:212
1345299160,2cyclictest10207-21expr08:00:152
1345299160,15cyclictest22898-21expr07:25:132
1345299160,15cyclictest0-21swapper/211:20:152
1345299160,15cyclictest0-21swapper/210:10:132
1345299160,15cyclictest0-21swapper/209:05:142
13447991614,1cyclictest4630-21cat07:50:151
13447991614,1cyclictest0-21swapper/110:00:171
13447991614,1cyclictest0-21swapper/109:50:211
13447991614,1cyclictest0-21swapper/109:25:131
13447991614,1cyclictest0-21swapper/109:20:161
13447991614,1cyclictest0-21swapper/109:05:151
13447991614,1cyclictest0-21swapper/108:10:221
13447991614,1cyclictest0-21swapper/107:45:171
13447991614,1cyclictest0-21swapper/107:25:171
1344799161,1cyclictest6087-21pluginstate11:40:211
1344799160,16cyclictest0-21swapper/108:00:191
1344799160,15cyclictest7185-21expr07:55:171
1344799160,15cyclictest29595-21smartctl09:30:211
1344799160,15cyclictest16982-21cpuspeed_turbos07:15:151
1344799160,15cyclictest1389-21apache_processe11:35:121
1344799160,15cyclictest0-21swapper/108:45:151
1344799150,14cyclictest0-21swapper/108:55:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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