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2026-05-19 - 16:21
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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 Tue May 19, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2129299261,24cyclictest0-21swapper/108:27:151
2129299252,20cyclictest19836-21fschecks_time09:00:161
2129299242,21cyclictest22277-21fschecks_time07:10:161
2129299242,21cyclictest11612-21mii-tool12:35:181
2129299232,6cyclictest32411-21chrt09:23:181
2129299232,6cyclictest25667-21chrt12:04:171
21292992312,10cyclictest0-21swapper/108:45:151
2129299230,5cyclictest0-21swapper/112:18:301
2129299230,22cyclictest7936-21latency_hist10:35:001
2129299230,22cyclictest1093-21expr11:20:121
21292992215,6cyclictest28087-21ls10:10:201
21292992214,7cyclictest31264-21apache208:25:011
2129299221,20cyclictest7034-21cpuspeed_turbos09:35:131
2129299221,20cyclictest3983-21H222:10:211
2129299220,7cyclictest8841-21grep07:45:021
2129299220,21cyclictest863-21avahi-daemon07:45:221
2129299220,21cyclictest3976-21H222:10:211
2129299220,21cyclictest28846-21cut12:09:591
2129299220,21cyclictest21614-21uname10:00:161
2129299220,21cyclictest20527-21cut10:00:001
2129299220,21cyclictest19584-21swap11:50:201
2129299220,21cyclictest19584-21swap11:50:191
2129299220,21cyclictest17227-21if_enp1s010:50:151
2129299220,21cyclictest13325-21sed07:50:211
2129299220,21cyclictest0-21swapper/111:00:151
2129299220,21cyclictest0-21swapper/110:35:161
2129299220,21cyclictest0-21swapper/110:20:181
2129299220,21cyclictest0-21swapper/108:05:211
21288992214,7cyclictest870-21systemd-logind10:25:210
2129299211,6cyclictest0-21swapper/108:31:481
21292992114,6cyclictest21698-21sed11:55:191
21292992113,7cyclictest2294-21nfsd409:25:181
2129299211,19cyclictest24386-21cat07:15:141
2129299210,6cyclictest8085-21awk11:30:171
2129299210,6cyclictest13033-21expr11:40:141
2129299210,21cyclictest0-21swapper/109:46:471
2129299210,20cyclictest9475-21grep08:40:181
2129299210,20cyclictest4834-21chrt09:30:151
2129299210,20cyclictest31254-21wc07:25:211
2129299210,20cyclictest30288-21cut10:15:191
2129299210,20cyclictest28913-21sed07:20:211
2129299210,20cyclictest23094-21nfsd409:05:181
2129299210,20cyclictest19000-21sed09:00:021
2129299210,20cyclictest15243-21wc09:50:131
2129299210,20cyclictest14556-21tr07:55:131
2129299210,20cyclictest0-21swapper/112:26:361
2129299210,20cyclictest0-21swapper/112:20:121
2129299210,20cyclictest0-21swapper/112:15:001
2129299210,20cyclictest0-21swapper/111:45:131
2129299210,20cyclictest0-21swapper/111:36:001
2129299210,20cyclictest0-21swapper/111:25:151
2129299210,20cyclictest0-21swapper/111:15:131
2129299210,20cyclictest0-21swapper/111:10:181
2129299210,20cyclictest0-21swapper/110:40:161
2129299210,20cyclictest0-21swapper/109:40:191
2129299210,20cyclictest0-21swapper/108:50:161
2129299210,20cyclictest0-21swapper/108:35:221
2129299210,20cyclictest0-21swapper/108:15:011
2129299210,20cyclictest0-21swapper/107:30:171
21292992014,5cyclictest0-21swapper/110:55:161
21292992013,6cyclictest3989-21H222:10:211
2129299200,19cyclictest455-21plymouthd09:10:141
2129299200,19cyclictest0-21swapper/111:05:211
2129299200,19cyclictest0-21swapper/110:45:141
2129299200,19cyclictest0-21swapper/110:25:181
2129299200,19cyclictest0-21swapper/110:05:141
2129299200,19cyclictest0-21swapper/110:05:141
2128899203,16cyclictest6627-21nfsd410:30:160
2128899200,17cyclictest0-21swapper/009:05:190
2129799193,15cyclictest0-21swapper/209:37:162
2129799190,16cyclictest3985-21H222:10:212
2129299190,18cyclictest0-21swapper/109:15:151
2129299190,18cyclictest0-21swapper/107:35:161
2128899191,3cyclictest6488-21grep12:25:170
2128899190,16cyclictest3989-21H222:10:210
2129799182,1cyclictest31660-21open_inodes11:15:212
2129799182,15cyclictest18132sleep210:24:552
2129799182,15cyclictest12078-21expr12:35:192
2129799180,17cyclictest3987-21H222:10:212
2129799180,17cyclictest3983-21H222:10:212
2128899186,11cyclictest0-21swapper/011:23:410
2128899182,15cyclictest0-21swapper/007:54:400
21288991816,1cyclictest0-21swapper/007:48:570
21288991815,2cyclictest13593-21/usr/sbin/munin08:50:130
21288991815,2cyclictest1320-21nsca11:50:000
2128899181,2cyclictest27717-21expr11:10:130
2128899180,17cyclictest0-21swapper/007:55:120
2128899180,15cyclictest23172-21cat12:00:000
2129799173,0cyclictest0-21swapper/207:16:132
2129799172,1cyclictest0-21swapper/208:43:102
21297991716,1cyclictest28-21ksoftirqd/208:37:162
21297991715,1cyclictest0-21swapper/211:40:182
21297991715,1cyclictest0-21swapper/210:15:052
21297991714,3cyclictest0-21swapper/207:31:502
21297991714,2cyclictest5281-21/usr/sbin/munin10:30:142
21297991714,2cyclictest3707-21master08:29:182
21297991714,2cyclictest31781-21pzem09:20:192
21297991714,2cyclictest24026-21df12:00:142
21297991714,2cyclictest23337-21timerandwakeup07:10:212
21297991714,2cyclictest23261-21ntp_kernel_pll_09:05:192
21297991714,2cyclictest15129-21processes08:50:202
21297991714,2cyclictest11687-21apache_volume07:50:122
21297991714,2cyclictest11346-21cat10:40:132
21297991714,2cyclictest0-21swapper/210:10:122
21297991714,1cyclictest0-21swapper/207:58:372
2129799170,2cyclictest993-21dbus-daemon12:20:192
2129799170,2cyclictest8009-21/usr/sbin/munin10:35:182
2129799170,2cyclictest726-21grep11:20:132
2129799170,2cyclictest5210-21latency_hist10:30:002
2129799170,2cyclictest3991-21H222:10:212
2129799170,2cyclictest3983-21H222:10:212
2129799170,2cyclictest3976-21H222:10:212
2129799170,2cyclictest3414-21master11:27:122
2129799170,2cyclictest24572-21needreboot10:05:172
2129799170,2cyclictest24572-21needreboot10:05:162
2129799170,2cyclictest18122-21ls08:00:182
2129799170,1cyclictest4035-21H222:10:212
2129799170,1cyclictest0-21swapper/212:28:422
2129799170,1cyclictest0-21swapper/209:18:162
2129799170,16cyclictest9140-21cron11:34:592
2129799170,16cyclictest6448-21expr07:40:122
2129799170,16cyclictest4035-21H222:10:212
2129799170,16cyclictest399-20systemd-journal09:25:062
2129799170,16cyclictest23370-21/usr/sbin/munin08:10:162
2129799170,16cyclictest21492-21if_eno110:00:162
2129799170,16cyclictest20281-21cat08:05:122
2129799170,16cyclictest17956-21apache_volume09:55:122
2129799170,16cyclictest15746-21expr11:45:132
2129799170,16cyclictest14315-21fschecks_time10:45:152
2129799170,16cyclictest0-21swapper/212:05:202
2129799170,16cyclictest0-21swapper/210:53:312
21288991715,1cyclictest28990-21uptime07:20:210
21288991715,1cyclictest0-21swapper/009:20:140
21288991714,2cyclictest9008-21runrttasks11:33:210
21288991714,2cyclictest6858-21apache_processe09:35:110
21288991714,2cyclictest4844-21grep07:35:210
21288991714,2cyclictest4035-21H222:10:210
21288991714,2cyclictest3987-21H222:10:210
21288991714,2cyclictest26974-21grep10:10:130
21288991714,2cyclictest17663-21nfsd408:55:200
21288991714,2cyclictest1557-21runrttasks10:21:320
2128899171,1cyclictest0-21swapper/008:39:480
2128899171,15cyclictest0-21swapper/009:34:370
2128899170,2cyclictest3979-21H222:10:210
2128899170,2cyclictest3976-21H222:10:210
2128899170,2cyclictest32225-21expr12:15:130
2128899170,2cyclictest26659-21munin-run07:20:010
2128899170,1cyclictest3987-21H222:10:210
2128899170,1cyclictest1659-21postgres08:28:370
2128899170,16cyclictest935-21gdbus09:25:020
2128899170,16cyclictest455-21plymouthd08:05:130
2128899170,16cyclictest3989-21H222:10:210
2128899170,16cyclictest31662-21/usr/sbin/munin11:15:210
2128899170,16cyclictest30937-21needreboot07:25:180
2128899170,16cyclictest23678-21cpuspeed_turbos12:00:140
2128899170,16cyclictest21845-21needreboot10:00:170
2128899170,16cyclictest2007-21systemd-journal12:36:130
2128899170,16cyclictest18294-21expr11:50:130
2128899170,16cyclictest18294-21expr11:50:130
2128899170,16cyclictest1521-21lxd08:34:420
2128899170,16cyclictest13644-21/usr/sbin/munin10:45:190
2128899170,16cyclictest12099-21nfsd408:45:180
21297991614,1cyclictest274602chrt11:10:032
21297991614,1cyclictest27049-21/usr/sbin/munin07:20:142
21297991614,1cyclictest21405-21smartctl11:55:182
21297991614,1cyclictest0-21swapper/211:50:122
21297991614,1cyclictest0-21swapper/211:50:112
21297991614,1cyclictest0-21swapper/211:35:112
21297991614,1cyclictest0-21swapper/209:40:202
21297991614,1cyclictest0-21swapper/209:30:162
21297991613,2cyclictest8091-21/usr/sbin/munin12:30:152
21297991613,2cyclictest12751-21cstates09:45:142
2129799160,1cyclictest2181-21/usr/sbin/munin08:30:142
2129799160,15cyclictest3981-21H222:10:212
2129799160,15cyclictest23420-21find11:00:212
2129799160,15cyclictest17870-21latency_hist09:55:012
2129799160,15cyclictest0-21swapper/209:10:142
2129799160,15cyclictest0-21swapper/209:00:172
2129799160,15cyclictest0-21swapper/208:45:132
2129799160,15cyclictest0-21swapper/207:30:012
21288991614,1cyclictest124912chrt11:40:120
21288991614,1cyclictest0-21swapper/011:35:130
21288991614,1cyclictest0-21swapper/011:25:140
21288991614,1cyclictest0-21swapper/011:00:060
21288991614,1cyclictest0-21swapper/010:40:020
21288991614,1cyclictest0-21swapper/009:55:210
21288991614,1cyclictest0-21swapper/009:15:140
21288991614,1cyclictest0-21swapper/008:40:140
21288991613,2cyclictest6613-21expr07:40:110
21288991613,2cyclictest24751-21find09:10:110
21288991613,2cyclictest15494-21ls09:50:130
2128899160,2cyclictest24026-21nfsd408:10:200
2128899160,2cyclictest0-21swapper/012:05:170
2128899160,1cyclictest0-21swapper/009:00:160
2128899160,15cyclictest2214-21find12:20:110
2128899160,15cyclictest0-21swapper/010:55:200
2128899160,15cyclictest0-21swapper/010:15:130
2128899160,15cyclictest0-21swapper/010:05:130
2128899160,15cyclictest0-21swapper/010:05:120
2128899160,15cyclictest0-21swapper/009:45:130
2128899160,15cyclictest0-21swapper/009:40:130
2128899160,15cyclictest0-21swapper/008:15:140
2128899160,15cyclictest0-21swapper/007:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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