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2026-05-04 - 23:18
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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 May 04, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8415992214,4cyclictest0-21swapper/110:59:381
841599220,21cyclictest843-21systemd-network12:04:351
841199220,18cyclictest0-21swapper/008:45:150
8420992114,6cyclictest0-21swapper/211:45:172
841199210,20cyclictest843-21systemd-network11:13:030
842099202,17cyclictest4099-21H222:10:212
8420991916,2cyclictest0-21swapper/209:56:432
8415991914,1cyclictest0-21swapper/110:45:371
841599190,16cyclictest3979-21H222:10:211
841199193,14cyclictest0-21swapper/011:05:510
8411991917,1cyclictest3981-21H222:10:210
8411991913,3cyclictest0-21swapper/010:31:110
841199190,1cyclictest0-21swapper/010:15:170
842099182,1cyclictest0-21swapper/211:13:162
842099182,15cyclictest0-21swapper/207:51:432
8420991813,2cyclictest3985-21H222:10:212
842099181,16cyclictest3987-21H222:10:212
842099181,16cyclictest1504-21tail08:50:152
842099180,17cyclictest0-21swapper/212:35:012
841599182,15cyclictest21-21ksoftirqd/109:56:291
8415991815,2cyclictest31114-21wc09:45:001
8415991814,3cyclictest4023-21PluginScanner10:23:131
8415991813,3cyclictest29698-21cat08:45:011
841599180,3cyclictest399-20systemd-journal08:16:341
841599180,3cyclictest27327-21sshd07:41:331
841599180,2cyclictest3985-21H222:10:211
841599180,2cyclictest3983-21H222:10:211
841599180,2cyclictest0-21swapper/111:20:011
841599180,17cyclictest4035-21H222:10:211
841599180,16cyclictest3989-21H222:10:211
841199182,15cyclictest6648-21chrt08:01:140
8411991814,3cyclictest0-21swapper/011:04:340
8411991812,5cyclictest26954-21ps09:35:210
8411991812,4cyclictest471-21nvmesmart_nvme011:40:180
841199181,16cyclictest0-21swapper/012:00:160
841199181,15cyclictest0-21swapper/010:21:250
8411991811,5cyclictest0-21swapper/010:05:480
841199180,2cyclictest4099-21H222:10:210
841199180,2cyclictest3991-21H222:10:210
841199180,2cyclictest28166-21cron11:34:590
841199180,17cyclictest843-21systemd-network11:20:170
841199180,17cyclictest843-21systemd-network07:25:180
8420991715,1cyclictest244242chrt07:36:412
8420991715,1cyclictest0-21swapper/212:00:152
8420991715,1cyclictest0-21swapper/208:10:082
8420991714,2cyclictest9058-21expr11:55:172
8420991714,2cyclictest8488-21perf09:05:002
8420991714,2cyclictest4140-21smartctl10:50:142
8420991714,2cyclictest3991-21H222:10:212
8420991714,2cyclictest3985-21H222:10:212
8420991714,2cyclictest3985-21H222:10:212
8420991714,2cyclictest30761-21cut12:35:142
8420991714,2cyclictest22813-21cpuspeed_turbos09:30:132
8420991714,2cyclictest22734-21grep08:30:172
8420991714,2cyclictest22119-21ls10:25:142
8420991714,2cyclictest17759-21expr09:20:132
8420991714,2cyclictest13150-21/usr/sbin/munin12:05:102
8420991713,3cyclictest3976-21H222:10:212
8420991713,2cyclictest3983-21H222:10:212
842099171,1cyclictest98232chrt10:01:462
842099171,15cyclictest5862-21expr08:00:182
842099171,15cyclictest22762-21nfsd412:20:172
842099171,15cyclictest0-21swapper/211:20:202
842099170,2cyclictest5411-21expr11:50:142
842099170,2cyclictest3979-21H222:10:212
842099170,2cyclictest30578-21taskset11:35:542
842099170,2cyclictest30578-21taskset11:35:532
842099170,2cyclictest12364-21sed11:05:172
842099170,16cyclictest9043-21tr09:05:152
842099170,16cyclictest6448-21expr10:55:142
842099170,16cyclictest4099-21H222:10:212
842099170,16cyclictest3987-21H222:10:212
842099170,16cyclictest3985-21H222:10:212
842099170,16cyclictest3983-21H222:10:212
842099170,16cyclictest3983-21H222:10:212
842099170,16cyclictest3976-21H222:10:212
842099170,16cyclictest29219-21nfsd407:45:192
842099170,16cyclictest19459-21fschecks_time12:15:152
842099170,16cyclictest1829-21systemd-journal10:10:162
842099170,16cyclictest15853-21awk09:15:192
842099170,16cyclictest12700-21sed09:10:182
842099170,15cyclictest4099-21H222:10:212
842099170,15cyclictest3985-21H222:10:212
842099170,14cyclictest0-21swapper/210:07:442
841599172,1cyclictest0-21swapper/107:57:431
8415991714,2cyclictest6560-21/usr/sbin/munin11:50:221
8415991714,2cyclictest3989-21H222:10:211
8415991714,2cyclictest3981-21H222:10:211
8415991714,2cyclictest16043-21/usr/sbin/munin09:15:211
8415991714,2cyclictest14506-21snapd09:32:331
8415991714,2cyclictest14461-21nfsd412:05:171
841599171,15cyclictest291762sleep112:33:291
841599170,2cyclictest8698-21apache_accesses07:10:121
841599170,2cyclictest7660-21cut08:05:141
841599170,2cyclictest7660-21cut08:05:141
841599170,2cyclictest4099-21H222:10:211
841599170,2cyclictest3991-21H222:10:211
841599170,2cyclictest3987-21H222:10:211
841599170,2cyclictest3707-21master08:33:451
841599170,2cyclictest25232-21kernelversion08:35:161
841599170,2cyclictest24988-21hddtemp_smartct12:25:161
841599170,1cyclictest3991-21H222:10:211
841599170,1cyclictest3987-21H222:10:211
841599170,1cyclictest3981-21H222:10:211
841599170,16cyclictest9109-21tr09:05:141
841599170,16cyclictest8082-21expr11:55:131
841599170,16cyclictest577-21pzem11:40:181
841599170,16cyclictest525-21smartctl09:45:191
841599170,16cyclictest3987-21H222:10:211
841599170,16cyclictest3983-21H222:10:211
841599170,16cyclictest30457-21expr10:40:141
841599170,16cyclictest22085-21master09:27:121
841599170,16cyclictest17374-21cat07:25:131
841599170,16cyclictest15450-21cut11:10:171
841599170,16cyclictest14505-21snapd12:15:271
841599170,16cyclictest1351-21lxd09:04:421
841599170,16cyclictest0-21swapper/110:37:451
841199172,15cyclictest9-21ksoftirqd/012:12:300
8411991714,2cyclictest5759-21perf10:55:010
8411991714,2cyclictest3985-21H222:10:210
8411991714,2cyclictest3341-21tr08:55:120
8411991714,2cyclictest31463-21awk07:50:140
8411991714,2cyclictest31144-21sed11:40:010
8411991714,2cyclictest31144-21sed11:40:010
8411991714,2cyclictest23912-21perf08:35:010
8411991714,2cyclictest2260-21ls11:45:130
8411991714,2cyclictest22545-21cpuspeed_turbos07:35:130
8411991714,2cyclictest16561-21idleruntime08:20:160
8411991714,2cyclictest14555-21ntpq12:05:160
841199171,15cyclictest5851-21if_lxdbr011:50:170
841199170,2cyclictest8696-21awk08:05:170
841199170,2cyclictest8696-21awk08:05:170
841199170,2cyclictest29619-21cut10:39:590
841199170,2cyclictest2007-21systemd-journal07:20:070
841199170,2cyclictest15654-21sed09:15:180
841199170,2cyclictest15636-21latency_hist08:20:020
841199170,2cyclictest11401-21missed_timers08:10:180
841199170,16cyclictest8660-21wc11:00:000
841199170,16cyclictest3979-21H222:10:210
841199170,16cyclictest27675-21fschecks_time12:30:150
841199170,16cyclictest24784-21chrt11:26:410
841199170,16cyclictest22258-21fschecks_count10:25:150
841199170,16cyclictest21135-21perf12:20:000
841199170,16cyclictest1079-21cups-browsed09:10:210
841199170,16cyclictest0-21swapper/008:43:510
841199170,15cyclictest3979-21H222:10:210
8420991614,1cyclictest0-21swapper/209:25:192
8420991614,1cyclictest0-21swapper/208:45:142
8420991614,1cyclictest0-21swapper/208:35:142
8420991613,2cyclictest24916-21df10:30:132
8420991613,2cyclictest13018-21/usr/sbin/munin08:15:152
842099160,1cyclictest14550-21snapd08:40:132
842099160,1cyclictest0-21swapper/210:45:182
842099160,1cyclictest0-21swapper/208:55:162
842099160,1cyclictest0-21swapper/208:05:142
842099160,1cyclictest0-21swapper/208:05:142
842099160,15cyclictest3987-21H222:10:212
842099160,15cyclictest31801-21expr11:40:122
842099160,15cyclictest30288-21vmstat09:40:222
842099160,15cyclictest25350-21missed_timers12:25:172
842099160,15cyclictest0-21swapper/210:15:152
842099160,15cyclictest0-21swapper/209:35:202
842099160,15cyclictest0-21swapper/207:20:132
8415991614,1cyclictest21533-21/usr/sbin/munin12:20:151
8415991614,1cyclictest0-21swapper/112:35:131
8415991614,1cyclictest0-21swapper/112:10:161
8415991614,1cyclictest0-21swapper/109:35:191
8415991614,1cyclictest0-21swapper/108:55:131
8415991614,1cyclictest0-21swapper/108:20:171
8415991614,1cyclictest0-21swapper/107:45:151
8415991614,1cyclictest0-21swapper/107:20:201
8415991613,2cyclictest13152-21ntpq09:10:201
8415991613,2cyclictest11325-21cat10:05:161
841599160,1cyclictest0-21swapper/110:15:011
841599160,15cyclictest7749-21/usr/sbin/munin10:00:161
841599160,15cyclictest16624-21expr10:15:131
841599160,15cyclictest10400-21grep08:10:141
841599160,15cyclictest0-21swapper/111:45:151
841599160,15cyclictest0-21swapper/111:35:141
841599160,15cyclictest0-21swapper/111:35:141
841599160,15cyclictest0-21swapper/108:00:031
8411991614,1cyclictest919-21fschecks_count10:45:160
8411991614,1cyclictest0-21swapper/012:35:160
8411991614,1cyclictest0-21swapper/011:55:110
8411991614,1cyclictest0-21swapper/010:10:190
8411991614,1cyclictest0-21swapper/009:42:520
8411991614,1cyclictest0-21swapper/009:30:150
8411991614,1cyclictest0-21swapper/009:20:160
8411991614,1cyclictest0-21swapper/009:10:010
8411991613,2cyclictest6693-21expr09:00:140
8411991613,2cyclictest28442-21expr07:45:150
8411991613,2cyclictest22119-21expr12:20:120
8411991613,2cyclictest1658-21awk08:50:160
841199161,1cyclictest3989-21H222:10:210
841199160,2cyclictest6786-21timerandwakeup09:55:210
841199160,2cyclictest20550-21expr09:25:140
841199160,1cyclictest0-21swapper/012:25:140
841199160,15cyclictest99352chrt10:03:110
841199160,15cyclictest3696-21processes09:50:210
841199160,15cyclictest0-21swapper/010:40:170
841199160,15cyclictest0-21swapper/009:45:000
841199160,15cyclictest0-21swapper/007:43:230
8415991514,1cyclictest0-21swapper/108:50:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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