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2026-07-20 - 23:25
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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 highest latencies:
System rackdslot0.osadl.org (updated Mon Jul 20, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2176699290,5cyclictest0-21swapper/111:19:381
2177199230,22cyclictest0-21swapper/210:35:002
2176699230,22cyclictest10152-21munin-run09:40:011
2176699230,16cyclictest6697-21latency08:35:181
2176699223,15cyclictest25901-21missed_timers07:15:201
21766992214,7cyclictest11474-21interrupts09:40:171
21766992214,6cyclictest21419-21http_loadtime08:05:161
21766992214,6cyclictest21419-21http_loadtime08:05:161
21766992214,3cyclictest29851-21which08:20:161
21766992214,2cyclictest2553-21sed12:15:231
2176699221,15cyclictest22757-21cpuspeed_turbos09:05:141
2176699220,2cyclictest27946-21anvil11:08:191
2176699220,2cyclictest10026-21grep08:40:201
2176699220,21cyclictest28943-21nvmesmart_nvme007:20:181
2176699220,17cyclictest843-21systemd-network07:26:361
2176699220,16cyclictest817-21cpuspeed_turbos07:30:141
2176699220,16cyclictest3240-21grep10:25:151
21761992212,5cyclictest18490-21latency_hist09:55:000
21771992114,2cyclictest20780-21if_lxdbr010:55:172
21766992115,5cyclictest8230-21expr12:25:231
21766992115,5cyclictest8230-21expr12:25:221
21766992114,6cyclictest4124-21expr07:35:121
21766992114,6cyclictest14959-21cat07:55:021
21766992114,3cyclictest24688-21latency_hist07:15:021
21766992114,2cyclictest3709-21qmgr08:27:561
21766992114,1cyclictest0-21swapper/112:39:001
21766992114,1cyclictest0-21swapper/107:40:161
21766992113,2cyclictest23307-21cat11:00:121
21766992113,1cyclictest0-21swapper/111:25:181
21766992113,1cyclictest0-21swapper/109:45:181
2176699211,2cyclictest3983-21H222:10:211
2176699211,1cyclictest113582chrt12:33:021
2176699210,2cyclictest27873-21grep08:15:211
2176699210,20cyclictest20414-21cat09:00:151
2176699210,20cyclictest0-21swapper/112:12:381
2176699210,1cyclictest234882sleep111:56:031
2176699210,1cyclictest11685-21perf07:50:011
2176699210,1cyclictest0-21swapper/111:35:141
2176699210,1cyclictest0-21swapper/109:55:151
2176699210,16cyclictest23944-21latency_hist10:05:011
2176699210,16cyclictest2120-21grep09:25:131
2176699210,15cyclictest0-21swapper/109:11:441
21761992119,1cyclictest12313-21fschecks_count10:40:150
2177199204,15cyclictest0-21swapper/208:38:172
21771992014,3cyclictest0-21swapper/209:29:422
21766992014,5cyclictest24980-21ls10:05:151
21766992014,5cyclictest0-21swapper/111:42:361
21766992014,5cyclictest0-21swapper/110:50:221
21766992014,5cyclictest0-21swapper/110:45:131
21766992014,2cyclictest5186-21awk12:20:181
21766992014,1cyclictest291202chrt12:08:031
21766992014,1cyclictest0-21swapper/109:15:251
21766992013,2cyclictest16969-21ls07:55:221
21766992013,1cyclictest12217-21ls10:40:141
21766992013,1cyclictest0-21swapper/111:20:151
21766992013,1cyclictest0-21swapper/109:54:191
2176699200,1cyclictest0-21swapper/110:10:181
2176699200,19cyclictest0-21swapper/111:45:191
2176699200,19cyclictest0-21swapper/111:10:161
2176699200,19cyclictest0-21swapper/109:31:411
2176699200,14cyclictest0-21swapper/111:50:191
2176699200,14cyclictest0-21swapper/110:30:061
2176699200,14cyclictest0-21swapper/108:10:151
21761992010,6cyclictest0-21swapper/012:40:000
21771991916,2cyclictest17197-21grep11:45:182
21771991916,2cyclictest11013-21python308:45:012
2177199190,1cyclictest0-21swapper/209:10:042
21766991914,1cyclictest0-21swapper/110:55:201
21766991913,0cyclictest0-21swapper/110:20:131
2176699190,15cyclictest2680-21apt-get08:30:131
2176699190,14cyclictest0-21swapper/109:20:171
2176699190,14cyclictest0-21swapper/108:00:221
2176199192,3cyclictest0-21swapper/010:28:430
2176199192,16cyclictest22494-21apt-config11:00:010
21761991914,2cyclictest3989-21H222:10:210
2176199190,18cyclictest0-21swapper/011:41:400
2176199190,16cyclictest4099-21H222:10:210
2176199190,16cyclictest3987-21H222:10:210
2177199182,15cyclictest0-21swapper/208:16:232
21771991816,1cyclictest28-21ksoftirqd/207:10:242
21771991816,1cyclictest0-21swapper/212:18:092
21771991816,1cyclictest0-21swapper/211:05:402
21771991816,1cyclictest0-21swapper/208:48:332
21771991815,2cyclictest7842-21nfsd407:40:182
21771991814,3cyclictest28004-21lxd11:36:442
2177199180,3cyclictest0-21swapper/211:20:152
2177199180,17cyclictest3981-21H222:10:212
2177199180,16cyclictest14402-21latency_hist12:40:012
21766991814,0cyclictest0-21swapper/108:50:121
21766991813,1cyclictest0-21swapper/111:30:171
2176699180,16cyclictest31215-21ntp_kernel_pll_10:15:161
2176699180,0cyclictest0-21swapper/112:00:121
2176199182,15cyclictest0-21swapper/008:22:040
21761991814,3cyclictest7638-21/usr/sbin/munin09:35:160
21761991814,3cyclictest5307-21perf08:35:010
21761991814,3cyclictest0-21swapper/008:05:180
21761991814,3cyclictest0-21swapper/008:05:170
2176199180,17cyclictest399-20systemd-journal11:54:550
2176199180,16cyclictest0-21swapper/011:07:440
2176199180,15cyclictest4035-21H222:10:210
2176199180,15cyclictest3979-21H222:10:210
21771991714,2cyclictest5525-21sed07:35:212
21771991714,2cyclictest3991-21H222:10:212
21771991714,2cyclictest3987-21H222:10:212
21771991714,2cyclictest3983-21H222:10:212
21771991714,2cyclictest372-21/usr/sbin/munin08:25:142
21771991714,2cyclictest30056-21ntpq11:10:192
21771991714,2cyclictest26951-21runrttasks12:05:112
21771991714,2cyclictest23033-21sessionclean08:09:012
21771991714,2cyclictest23033-21sessionclean08:09:002
21771991714,2cyclictest17947-21/usr/sbin/munin08:00:222
21771991714,2cyclictest15456-21cpuspeed_turbos07:55:142
21771991714,2cyclictest13895-21/usr/sbin/munin11:40:132
21771991714,2cyclictest13275-21/usr/sbin/munin09:45:202
21771991714,2cyclictest10852-21chrt10:36:502
21771991714,2cyclictest10141-21awk09:40:002
21771991714,1cyclictest0-21swapper/209:40:182
21771991713,3cyclictest3989-21H222:10:212
21771991713,3cyclictest26877-21munin-run12:05:002
2177199170,2cyclictest4035-21H222:10:212
2177199170,2cyclictest4035-21H222:10:212
2177199170,2cyclictest3981-21H222:10:212
2177199170,2cyclictest30344-21netstat08:20:192
2177199170,2cyclictest23801-21cron10:05:002
2177199170,1cyclictest0-21swapper/210:50:462
2177199170,16cyclictest9199-21pzem_power11:30:222
2177199170,16cyclictest787-21grep07:30:132
2177199170,16cyclictest4099-21H222:10:212
2177199170,16cyclictest3987-21H222:10:212
2177199170,16cyclictest31473-21nfsd407:25:172
2177199170,16cyclictest25319-21latency_hist09:10:012
2177199170,16cyclictest24447-21cpuspeed_turbos10:05:142
2177199170,16cyclictest23929-21munin-plugin-st12:00:002
2177199170,16cyclictest20339-21mailstats09:55:202
2177199170,16cyclictest15775-21nfsd410:45:192
2177199170,16cyclictest14504-21snapd08:12:582
2177199170,15cyclictest3985-21H222:10:212
2176199172,1cyclictest0-21swapper/007:51:050
21761991714,2cyclictest7274-21nfsd410:30:170
21761991714,2cyclictest4511-21latency_hist09:30:000
21761991714,2cyclictest3991-21H222:10:210
21761991714,2cyclictest3991-21H222:10:210
21761991714,2cyclictest3956-21expr07:35:130
21761991714,2cyclictest30453-21cpuspeed_turbos07:25:110
21761991714,2cyclictest30111-21expr10:15:120
21761991714,2cyclictest27372-21ntp_offset09:10:180
21761991714,2cyclictest23863-21ls12:00:000
21761991714,2cyclictest20055-21grep09:00:150
21761991714,2cyclictest1926-21grep07:30:180
21761991714,2cyclictest19105-21expr09:55:130
21761991714,2cyclictest14593-21grep10:45:130
21761991714,2cyclictest0-21swapper/007:55:190
2176199170,2cyclictest4099-21H222:10:210
2176199170,2cyclictest3991-21H222:10:210
2176199170,2cyclictest23504-21cstates11:00:130
2176199170,2cyclictest19552-21dump-pmu-power09:00:000
2176199170,2cyclictest14823-21expr08:50:130
2176199170,2cyclictest1457-21munin-run09:25:010
2176199170,2cyclictest11889-21expr08:45:160
2176199170,2cyclictest11353-21latency11:35:170
2176199170,2cyclictest10030-21fschecks_time07:45:150
2176199170,1cyclictest0-21swapper/008:35:140
2176199170,16cyclictest9408-21lxd11:14:430
2176199170,16cyclictest8988-21cut10:35:140
2176199170,16cyclictest3991-21H222:10:210
2176199170,16cyclictest32079-21systemctl08:25:000
2176199170,16cyclictest26687-21ls08:15:140
2176199170,16cyclictest25029-21cat07:15:150
2176199170,16cyclictest23615-21chrt10:02:290
2176199170,16cyclictest23450-21nvmesmart_nvme007:10:190
2176199170,16cyclictest18372-21perf11:50:000
2176199170,16cyclictest14501-21snapd09:18:000
2176199170,16cyclictest13036-21cron09:45:010
2176199170,16cyclictest10078-21ps08:40:200
21771991614,1cyclictest32736-21expr10:20:132
21771991614,1cyclictest0-21swapper/210:25:202
21771991614,1cyclictest0-21swapper/209:00:202
21771991613,2cyclictest16356-21timerwakeupswit08:50:222
2177199160,1cyclictest0-21swapper/209:30:162
2177199160,1cyclictest0-21swapper/209:20:202
2177199160,15cyclictest18766-21apache_accesses11:50:122
2177199160,15cyclictest10586-21nfsd407:45:192
2177199160,15cyclictest0-21swapper/209:50:142
2177199160,15cyclictest0-21swapper/208:55:152
2177199160,15cyclictest0-21swapper/207:17:432
2176699160,15cyclictest11570-21cnf-update-db08:45:011
21761991615,1cyclictest0-21swapper/010:13:470
21761991614,1cyclictest8551-21timerwakeupswit07:40:230
21761991614,1cyclictest2012-21tr11:20:140
21761991614,1cyclictest0-21swapper/010:20:110
21761991614,1cyclictest0-21swapper/009:05:150
21761991613,2cyclictest29828-21debian-sa107:25:010
21761991613,2cyclictest25443-21/usr/sbin/munin10:05:170
2176199160,2cyclictest19557-21mailstats08:00:210
2176199160,15cyclictest5821-21cat09:30:150
2176199160,15cyclictest399-20systemd-journal08:10:020
2176199160,15cyclictest28705-21threads12:05:210
2176199160,15cyclictest0-21swapper/012:00:140
2176199160,15cyclictest0-21swapper/009:45:180
2177199150,14cyclictest0-21swapper/209:15:122
2177199150,0cyclictest0-21swapper/210:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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