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2026-04-25 - 18:17
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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 Sat Apr 25, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28221992621,4cyclictest29504-21mii-tool09:05:172
2822199242,21cyclictest0-21swapper/207:22:562
28221992417,6cyclictest1882-21cron11:09:012
2822199240,21cyclictest0-21swapper/209:15:172
28212992417,6cyclictest9916-21expr10:25:140
2821299240,22cyclictest6057-21run-parts08:25:000
2822199230,5cyclictest0-21swapper/210:58:082
28212992317,5cyclictest28179-21grep10:00:150
2821299230,22cyclictest843-21systemd-network09:55:400
2821299230,22cyclictest18709-21date07:50:010
2821299230,18cyclictest0-21swapper/012:05:000
2822199222,1cyclictest8938-21idleruntime11:20:172
2822199220,3cyclictest2007-21systemd-journal08:49:152
2822199220,2cyclictest32272-21hddtemp_smartct09:10:152
2822199220,2cyclictest27551-21grep09:00:212
2822199220,2cyclictest22421-21fgrep10:45:202
2822199220,2cyclictest11013-21grep09:30:142
2822199220,1cyclictest7437-21cat10:20:152
28212992214,7cyclictest9746-21expr08:30:130
28212992213,8cyclictest843-21systemd-network11:36:080
2821299220,2cyclictest31794-21cut09:10:130
2821299220,2cyclictest22544-21chrt08:52:120
2821299220,2cyclictest20210-21expr11:40:130
2821299220,2cyclictest11994-21ntp_states07:35:210
2821299220,21cyclictest16322-21grep08:40:180
2821299220,20cyclictest6232-21perf10:20:010
2821299220,20cyclictest20272-21sed12:39:000
2821299220,17cyclictest0-21swapper/010:58:300
2821299220,16cyclictest30059-21dpkg08:10:130
2821299220,16cyclictest14883-21grep09:35:180
2821299220,16cyclictest1035-21thermald07:10:350
2821299220,15cyclictest0-21swapper/007:45:010
28221992115,5cyclictest182382chrt07:46:072
28221992114,6cyclictest18209-21expr12:35:152
28221992113,7cyclictest29580-21expr11:00:142
28221992113,7cyclictest24560-21cut08:00:152
28221992113,7cyclictest24560-21cut08:00:152
2822199211,2cyclictest10771-21cat12:20:162
2822199211,19cyclictest16403-21latency_hist09:40:002
2822199211,19cyclictest10058-21expr10:25:142
2822199211,15cyclictest24263-21chrt09:54:212
2822199210,2cyclictest29963-21latency_hist08:10:012
2822199210,2cyclictest28950-21smartctl10:00:192
2822199210,2cyclictest25660-21expr11:50:152
2822199210,2cyclictest22388-21date11:45:012
2822199210,2cyclictest20691-21cut08:50:142
2822199210,2cyclictest18122-21chrt10:40:022
2822199210,2cyclictest17373-21anvil10:37:412
2822199210,2cyclictest16952-21grep11:35:142
2822199210,2cyclictest16836-21ls09:40:142
2822199210,2cyclictest15201-21apache_volume12:30:102
2822199210,2cyclictest12846-21expr12:25:142
2822199210,2cyclictest12846-21expr12:25:142
2822199210,2cyclictest11492-21chrt08:32:442
2822199210,2cyclictest1143-21expr12:05:132
2822199210,20cyclictest7392-21idleruntime08:25:162
2822199210,20cyclictest32133-21timerwakeupswit10:05:212
2822199210,1cyclictest6537-21ntpq07:25:202
2822199210,1cyclictest26106-21ntpq09:55:202
2822199210,1cyclictest15376-21awk11:30:172
2822199210,1cyclictest15362-21expr08:40:142
2822199210,1cyclictest0-21swapper/210:50:202
2822199210,1cyclictest0-21swapper/208:15:222
2822199210,1cyclictest0-21swapper/207:55:182
2822199210,1cyclictest0-21swapper/207:42:102
2822199210,1cyclictest0-21swapper/207:38:592
2822199210,1cyclictest0-21swapper/207:30:172
2822199210,1cyclictest0-21swapper/207:16:072
2822199210,1cyclictest0-21swapper/207:10:312
2822199210,16cyclictest12890-21if_eno108:35:162
28212992114,6cyclictest7163-21expr08:25:150
28212992114,6cyclictest0-21swapper/012:10:130
28212992114,6cyclictest0-21swapper/010:35:140
28212992114,6cyclictest0-21swapper/009:25:200
2821299210,2cyclictest26584-21cut09:00:150
2821299210,2cyclictest14482-21expr11:30:130
2821299210,20cyclictest22078-21cat07:55:150
2821299210,20cyclictest10174-21latency_hist07:35:010
2821299210,20cyclictest0-21swapper/012:05:130
2821299210,1cyclictest0-21swapper/009:20:170
2821299210,1cyclictest0-21swapper/009:20:170
2821299210,1cyclictest0-21swapper/007:53:370
2821299210,19cyclictest0-21swapper/012:15:130
2821299210,15cyclictest25396-21/usr/sbin/munin11:50:150
2821299210,15cyclictest21726-21cut09:50:010
2821299210,15cyclictest12764-21expr12:25:140
2821299210,15cyclictest12764-21expr12:25:140
2821299210,15cyclictest10038-21cstates12:20:130
28221992014,5cyclictest9190-21ntpq09:25:182
28221992014,5cyclictest20051-21missed_timers07:50:182
28221992011,5cyclictest0-21swapper/212:00:312
2822199200,2cyclictest4968-21http_loadtime12:10:152
2822199200,2cyclictest28816-21kernelversion11:55:182
2822199200,1cyclictest7351-21expr12:15:152
2822199200,1cyclictest0-21swapper/211:15:182
2822199200,19cyclictest0-21swapper/211:10:142
2822199200,19cyclictest0-21swapper/209:45:132
2822199200,19cyclictest0-21swapper/208:20:162
2822199200,15cyclictest25530-21perf09:00:012
28217992017,2cyclictest17492-21fschecks_time11:35:141
2821299203,2cyclictest13121-21fschecks_count10:30:150
28212992014,5cyclictest29859-21if_eno111:00:160
28212992014,5cyclictest15578-21cat12:30:120
28212992014,5cyclictest0-21swapper/011:45:200
28212992014,5cyclictest0-21swapper/011:25:180
28212992014,5cyclictest0-21swapper/010:15:010
28212992014,5cyclictest0-21swapper/009:06:290
28212992014,5cyclictest0-21swapper/008:15:220
28212992014,3cyclictest0-21swapper/010:20:170
28212992013,6cyclictest18880-21sed10:40:160
2821299200,2cyclictest7352-21chrt07:29:070
2821299200,2cyclictest11342-21expr09:30:140
2821299200,1cyclictest2876-21missed_timers07:20:180
2821299200,1cyclictest0-21swapper/011:55:180
2821299200,1cyclictest0-21swapper/011:10:150
2821299200,1cyclictest0-21swapper/010:50:110
2821299200,1cyclictest0-21swapper/008:35:170
2821299200,1cyclictest0-21swapper/007:15:160
2821299200,19cyclictest0-21swapper/011:23:000
2821299200,19cyclictest0-21swapper/008:59:260
2821299200,18cyclictest0-21swapper/009:50:440
2821299200,16cyclictest3991-21H222:10:210
2821299200,16cyclictest28373-21nfsd408:05:190
2821299200,15cyclictest0-21swapper/008:00:150
2821299200,15cyclictest0-21swapper/008:00:150
2821299200,14cyclictest0-21swapper/009:15:160
28221991914,4cyclictest0-21swapper/210:15:152
28221991913,5cyclictest30778-21http_loadtime08:10:162
2822199190,1cyclictest1046-21expr10:10:132
2822199190,18cyclictest0-21swapper/211:25:162
2822199190,15cyclictest12506-21cat10:30:122
2821799192,2cyclictest6084-21tune2fs11:15:161
2821799192,1cyclictest0-21swapper/109:10:181
28217991915,3cyclictest0-21swapper/112:12:401
28212991914,4cyclictest0-21swapper/010:45:120
28212991913,5cyclictest0-21swapper/008:45:210
2821299190,1cyclictest0-21swapper/011:09:530
2821299190,15cyclictest31204-21latency10:05:160
2821299190,0cyclictest0-21swapper/009:40:120
2822199180,0cyclictest0-21swapper/211:40:182
2821799182,15cyclictest0-21swapper/109:45:171
28217991815,2cyclictest2007-21systemd-journal07:39:001
28217991815,2cyclictest0-21swapper/109:50:231
2821799181,16cyclictest19657-21fschecks_time07:50:161
2821799180,1cyclictest0-21swapper/108:10:141
2821799180,17cyclictest843-21systemd-network10:12:101
2821799180,17cyclictest2007-21systemd-journal12:39:001
28221991713,3cyclictest0-21swapper/209:20:172
28221991713,3cyclictest0-21swapper/209:20:172
28217991715,1cyclictest0-21swapper/111:55:201
28217991715,1cyclictest0-21swapper/108:25:181
28217991715,1cyclictest0-21swapper/107:43:371
28217991714,2cyclictest9009-21nfsd409:25:191
28217991714,2cyclictest5069-21apache_volume09:20:111
28217991714,2cyclictest5069-21apache_volume09:20:111
28217991714,2cyclictest4162-21chrt07:23:151
28217991714,2cyclictest26629-21cstates10:55:131
28217991714,2cyclictest19229-21sed09:45:011
28217991714,2cyclictest15733-21switchtime11:30:201
28217991714,2cyclictest12967-21sshd09:31:331
2821799171,15cyclictest29438-21kernelversion07:10:311
2821799170,2cyclictest9125-21dpkg10:25:011
2821799170,2cyclictest5066-21needreboot10:15:181
2821799170,2cyclictest21167-21hddtemp_smartct08:50:151
2821799170,2cyclictest17530-21munin-run12:35:001
2821799170,2cyclictest1521-21lxd07:58:411
2821799170,2cyclictest13922-21nvmesmart_nvme010:30:201
2821799170,1cyclictest0-21swapper/110:00:141
2821799170,16cyclictest30795-21cron07:15:011
2821799170,16cyclictest30391-21nfsd411:00:181
2821799170,16cyclictest29506-21sed08:09:001
2821799170,16cyclictest23180-21find08:55:131
2821799170,16cyclictest22520-21switchtime10:45:211
2821799170,16cyclictest2011-21pzem_voltage08:15:211
2821799170,16cyclictest1856-21systemd-udevd09:38:521
2821799170,16cyclictest1377-21lxd08:22:411
2821799170,15cyclictest0-21swapper/112:25:221
2821799170,15cyclictest0-21swapper/112:25:221
28217991614,1cyclictest0-21swapper/112:20:131
28217991614,1cyclictest0-21swapper/112:15:181
28217991614,1cyclictest0-21swapper/112:00:431
28217991614,1cyclictest0-21swapper/111:45:131
28217991614,1cyclictest0-21swapper/111:40:151
28217991614,1cyclictest0-21swapper/110:25:011
28217991614,1cyclictest0-21swapper/108:30:141
28217991613,2cyclictest3220-21chrt12:06:511
28217991613,2cyclictest2409-21egrep11:10:141
28217991613,2cyclictest15430-21expr08:40:141
2821799160,2cyclictest5402-21cstates07:25:151
2821799160,2cyclictest25898-21grep09:55:191
2821799160,1cyclictest23989-21expr10:50:141
2821799160,1cyclictest0-21swapper/110:05:151
2821799160,1cyclictest0-21swapper/107:30:161
2821799160,15cyclictest8676-21cat11:20:161
2821799160,15cyclictest29361-21fschecks_time09:05:161
2821799160,15cyclictest24786-21cat08:00:151
2821799160,15cyclictest24786-21cat08:00:151
2821799160,15cyclictest12723-21fschecks_count08:35:151
2821799160,15cyclictest0-21swapper/111:50:171
2821799160,15cyclictest0-21swapper/111:25:201
2821799160,15cyclictest0-21swapper/111:05:181
2821799160,15cyclictest0-21swapper/110:40:131
2821799160,15cyclictest0-21swapper/109:00:141
2821799160,15cyclictest0-21swapper/107:45:201
28217991514,1cyclictest0-21swapper/109:15:331
28217991513,1cyclictest0-21swapper/108:45:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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