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2026-07-29 - 16:25
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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 the 376 highest latencies:
System rackdslot0.osadl.org (updated Wed Jul 29, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3041499230,18cyclictest0-21swapper/112:33:201
3041399220,5cyclictest0-21swapper/008:05:000
3041399213,10cyclictest0-21swapper/007:40:400
3042099203,2cyclictest2858-21rs:main2
3042099203,16cyclictest5478-21acpi09:15:112
3042099203,16cyclictest5478-21acpi09:15:102
3041399202,11cyclictest6335-21cut10:15:010
3042099194,1cyclictest0-21swapper/209:59:032
30420991916,2cyclictest30347-21nfsd409:00:192
3042099190,1cyclictest0-21swapper/207:51:132
3042099190,1cyclictest0-21swapper/207:20:012
3042099190,18cyclictest0-21swapper/209:28:282
3041499192,16cyclictest26237-21processes11:45:221
30414991917,1cyclictest0-21swapper/111:44:101
30414991914,2cyclictest14809-21apt-get12:25:011
3041499191,3cyclictest16607-21nfsd410:30:191
3041499191,3cyclictest16607-21nfsd410:30:181
3041499190,1cyclictest0-21swapper/112:04:291
3041499190,17cyclictest2007-21systemd-journal10:19:191
30413991912,5cyclictest870-21systemd-logind11:06:510
3041399190,18cyclictest426-21systemd-udevd08:36:520
3041399190,17cyclictest11134-21nfsd408:25:190
3042099182,15cyclictest28825-21munin-run10:55:002
30420991814,3cyclictest1377-21lxd12:08:452
3042099181,2cyclictest9901-21cpuspeed_turbos08:25:142
3042099180,17cyclictest399-20systemd-journal09:30:022
3041499182,2cyclictest424-21sort09:05:181
30414991816,1cyclictest0-21swapper/109:45:181
3041499181,16cyclictest29386-21expr09:00:141
3041499181,16cyclictest11506-21cstates09:25:131
3041499180,3cyclictest9444-21grep11:15:171
3041499180,3cyclictest399-20systemd-journal11:30:001
3041499180,17cyclictest843-21systemd-network10:49:341
3041499180,17cyclictest28845-21grep11:50:181
3041499180,17cyclictest1522-21lxd12:08:461
3041499180,15cyclictest0-21swapper/107:43:351
3041399183,1cyclictest0-21swapper/007:21:310
3041399182,2cyclictest10281-21expr10:20:120
3041399182,15cyclictest0-21swapper/011:20:310
30413991815,2cyclictest2478-21cron08:15:010
3041399181,2cyclictest3053-21systemd-logind09:16:510
3041399181,2cyclictest3053-21systemd-logind09:16:510
3041399181,1cyclictest0-21swapper/011:00:220
3041399181,16cyclictest3053-21systemd-logind11:10:510
30420991715,1cyclictest0-21swapper/212:24:212
30420991715,1cyclictest0-21swapper/211:44:202
30420991714,2cyclictest9317-21apache_accesses12:15:122
30420991714,2cyclictest7860-21awk12:10:192
30420991714,2cyclictest3259-21fschecks_time09:10:162
30420991714,2cyclictest32441-21latency_hist08:10:012
30420991714,2cyclictest30258-21/usr/sbin/munin10:00:222
30420991714,2cyclictest28780-21grep11:50:182
30420991714,2cyclictest2750-21expr11:05:142
30420991714,2cyclictest23879-21cstates10:45:122
30420991714,2cyclictest20158-21nvmesmart_nvme012:30:212
30420991714,2cyclictest20036-21fschecks_time09:40:152
30420991714,2cyclictest20036-21fschecks_time09:40:152
30420991714,2cyclictest1920-21nfsd410:05:182
30420991714,2cyclictest14506-21snapd11:45:272
30420991714,2cyclictest0-21swapper/208:15:142
30420991714,1cyclictest0-21swapper/207:29:262
30420991713,3cyclictest0-21swapper/207:31:262
3042099171,1cyclictest0-21swapper/211:55:182
3042099171,1cyclictest0-21swapper/209:35:222
3042099171,15cyclictest10065-21cstates10:20:122
3042099171,15cyclictest0-21swapper/210:30:182
3042099171,15cyclictest0-21swapper/210:30:182
30420991711,5cyclictest0-21swapper/209:50:172
3042099171,15cyclictest0-21swapper/209:05:052
3042099170,2cyclictest21988-21cstates12:35:142
3042099170,2cyclictest21988-21cstates12:35:132
3042099170,2cyclictest19704-21df11:35:152
3042099170,2cyclictest16302-21fschecks_time12:25:152
3042099170,2cyclictest14782-21sshd10:29:202
3042099170,2cyclictest13242-21latency_hist11:25:002
3042099170,2cyclictest13239-21fschecks_time08:30:172
3042099170,16cyclictest7107-21tr10:15:142
3042099170,16cyclictest3976-21H222:10:212
3042099170,16cyclictest3976-21H222:10:212
3042099170,16cyclictest3819-21/usr/sbin/munin10:10:112
3042099170,16cyclictest32616-21if_eno111:00:182
3042099170,16cyclictest31929-21netstat07:10:172
3042099170,16cyclictest29644-21df10:55:132
3042099170,16cyclictest29644-21df10:55:132
3042099170,16cyclictest26697-21expr08:00:142
3042099170,16cyclictest18446-21expr08:40:152
3042099170,16cyclictest16300-21munin-plugin-st11:30:012
3042099170,16cyclictest15935-21df07:40:152
3041499172,0cyclictest0-21swapper/110:50:031
30414991716,1cyclictest21-21ksoftirqd/111:05:191
30414991714,2cyclictest8316-21threads12:10:221
30414991714,2cyclictest3986-21H222:10:211
30414991714,2cyclictest354-21expr08:10:131
30414991714,2cyclictest28108-21df_inode09:55:131
30414991714,2cyclictest20895-21apache_accesses10:40:101
30414991714,2cyclictest19761-21pzem_voltage08:40:221
30414991714,2cyclictest19610-21cat09:40:131
30414991714,2cyclictest19610-21cat09:40:131
30414991714,2cyclictest18069-21/usr/sbin/munin09:35:231
30414991714,2cyclictest15945-21lxd08:28:451
30414991714,2cyclictest10670-21nfsd412:15:181
30414991714,2cyclictest10075-21expr10:20:131
3041499171,15cyclictest31622-21awk10:00:191
3041499171,15cyclictest17892sleep111:04:501
3041499171,15cyclictest13544-21latency08:30:181
3041499170,2cyclictest31311-21ls11:55:171
3041499170,2cyclictest307-21dpkg07:11:321
3041499170,2cyclictest20530-21smartctl11:35:201
3041499170,2cyclictest16651-21awk08:35:191
3041499170,2cyclictest10695-21latency07:30:181
3041499170,2cyclictest0-21swapper/109:15:001
3041499170,2cyclictest0-21swapper/108:05:141
3041499170,1cyclictest0-21swapper/109:18:371
3041499170,1cyclictest0-21swapper/109:18:371
3041499170,16cyclictest6212-21basename11:10:181
3041499170,16cyclictest4283-21ls10:10:131
3041499170,16cyclictest29974-21irqstats10:55:171
3041499170,16cyclictest29974-21irqstats10:55:161
3041499170,16cyclictest26251-21/usr/sbin/munin08:00:181
3041499170,16cyclictest24022-21expr07:55:151
3041499170,16cyclictest22714-21awk12:35:181
3041499170,16cyclictest22714-21awk12:35:171
3041499170,16cyclictest21132-21cpuspeed_turbos08:45:131
3041499170,16cyclictest21047-21cpuspeed_turbos07:50:151
3041499170,16cyclictest15301-21sed07:40:011
3041499170,16cyclictest13708-21apache_accesses09:30:121
3041499170,16cyclictest12792-21/usr/sbin/munin10:25:131
3041499170,16cyclictest11518-21df11:20:161
3041499170,16cyclictest1076-21/usr/sbin/munin07:15:161
3041499170,16cyclictest0-21swapper/110:09:191
3041399172,1cyclictest1166-21expr10:05:140
3041399172,14cyclictest9-21ksoftirqd/012:32:510
30413991715,1cyclictest0-21swapper/011:36:330
30413991714,2cyclictest5574-21wc12:05:210
30413991714,2cyclictest3981-21H222:10:210
30413991714,2cyclictest31336-21ls08:05:230
30413991714,2cyclictest28797-21latency_hist10:55:010
30413991714,2cyclictest28721-21awk09:00:010
30413991714,2cyclictest28004-21lxd12:20:450
30413991714,2cyclictest23938-21cat07:55:150
30413991714,2cyclictest23919-21cstates10:45:120
30413991714,2cyclictest22870-21users08:45:220
30413991714,2cyclictest18533-21chrt11:33:000
30413991714,2cyclictest18266-21cat10:35:140
30413991714,2cyclictest16216-21df12:25:160
30413991714,2cyclictest10378-21cut07:30:170
30413991714,1cyclictest0-21swapper/009:25:210
30413991713,3cyclictest0-21swapper/007:50:160
3041399171,15cyclictest0-21swapper/012:12:460
3041399170,2cyclictest3707-21master10:04:190
3041399170,2cyclictest32119-21cstates09:05:140
3041399170,2cyclictest30864-21fschecks_time11:55:140
3041399170,2cyclictest24323-21cron11:45:000
3041399170,2cyclictest16954-21cat10:30:230
3041399170,2cyclictest16954-21cat10:30:230
3041399170,2cyclictest13956-21ntp_states08:30:200
3041399170,2cyclictest1-21systemd08:50:520
3041399170,2cyclictest1-21systemd08:50:510
3041399170,1cyclictest0-21swapper/011:15:140
3041399170,17cyclictest0-21swapper/009:00:210
3041399170,16cyclictest9634-21grep09:20:190
3041399170,16cyclictest7533-21grep08:20:180
3041399170,16cyclictest7019-21/usr/sbin/munin10:15:160
3041399170,16cyclictest3428-21cat08:15:130
3041399170,16cyclictest30309-21cut10:55:180
3041399170,16cyclictest30309-21cut10:55:180
3041399170,16cyclictest29005-21pzem11:50:210
3041399170,16cyclictest25120-21expr11:45:140
3041399170,16cyclictest1500-21cat12:00:170
30420991614,1cyclictest5097-21if_err_enp1s007:20:182
30420991614,1cyclictest23503-21/usr/sbin/munin07:55:142
30420991614,1cyclictest0-21swapper/212:00:172
30420991614,1cyclictest0-21swapper/211:15:122
30420991614,1cyclictest0-21swapper/209:20:172
30420991614,1cyclictest0-21swapper/208:35:132
30420991614,1cyclictest0-21swapper/208:20:152
30420991613,2cyclictest1035-21thermald08:55:192
3042099160,2cyclictest18338-21cat10:35:132
3042099160,1cyclictest0-21swapper/208:10:142
3042099160,15cyclictest16746-21expr11:30:142
3042099160,15cyclictest0-21swapper/211:10:152
3042099160,15cyclictest0-21swapper/210:40:132
3042099160,15cyclictest0-21swapper/209:45:192
3042099160,15cyclictest0-21swapper/208:45:142
3042099160,15cyclictest0-21swapper/207:45:132
30414991614,1cyclictest0-21swapper/108:55:141
30414991614,1cyclictest0-21swapper/107:45:191
30414991613,2cyclictest2967-21/usr/sbin/munin08:15:111
30414991613,2cyclictest19382-21ntp_states10:35:181
3041499160,2cyclictest8257-21apache_volume09:20:131
3041499160,1cyclictest0-21swapper/109:50:081
3041499160,15cyclictest9455-21munin-plugin-st07:30:011
3041499160,15cyclictest25070-21ntp_states08:50:201
3041499160,15cyclictest25070-21ntp_states08:50:201
3041499160,15cyclictest16523-21tr11:30:151
3041499160,15cyclictest0-21swapper/107:20:161
30413991614,1cyclictest0-21swapper/012:15:140
30413991614,1cyclictest0-21swapper/010:25:140
30413991614,1cyclictest0-21swapper/009:55:160
30413991614,1cyclictest0-21swapper/009:40:140
30413991614,1cyclictest0-21swapper/009:40:130
30413991614,1cyclictest0-21swapper/009:35:200
30413991614,1cyclictest0-21swapper/007:35:170
3041399160,1cyclictest0-21swapper/009:30:150
3041399160,1cyclictest0-21swapper/007:15:160
3041399160,15cyclictest7067-21cpuspeed_turbos07:25:140
3041399160,15cyclictest399-20systemd-journal07:10:020
3041399160,15cyclictest21664-21expr12:35:120
3041399160,15cyclictest21664-21expr12:35:120
3041399160,15cyclictest0-21swapper/010:40:010
3041399160,15cyclictest0-21swapper/009:50:130
3041399160,15cyclictest0-21swapper/008:40:140
3041399150,1cyclictest23465-21ntp_offset09:45:190
3041399150,1cyclictest0-21swapper/007:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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