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2025-12-17 - 06:29
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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 Wed Dec 17, 2025 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2268099220,21cyclictest843-21systemd-network21:02:390
2268599210,17cyclictest0-21swapper/219:55:062
2268199210,20cyclictest14606-21grep23:40:131
2268599202,17cyclictest0-21swapper/223:19:052
2268599200,17cyclictest0-21swapper/223:05:272
2268199200,19cyclictest843-21systemd-network00:37:291
2268199200,18cyclictest3983-21H222:10:211
2268199200,18cyclictest3983-21H222:10:211
22680992018,1cyclictest0-21swapper/022:50:000
2268599192,16cyclictest1133-21snapd23:40:012
22685991912,6cyclictest843-21systemd-network23:38:042
2268599190,2cyclictest3989-21H222:10:212
2268599190,2cyclictest3989-21H222:10:212
2268599190,18cyclictest3981-21H222:10:212
2268599190,18cyclictest0-21swapper/221:36:132
22681991915,3cyclictest10208-21apt-key00:30:001
2268199190,18cyclictest870-21systemd-logind23:08:521
2268099192,2cyclictest5282-21timerwakeupswit23:20:200
2268099192,2cyclictest5282-21timerwakeupswit23:20:200
2268099190,5cyclictest0-21swapper/020:00:010
2268099190,16cyclictest3989-21H222:10:210
2268099190,16cyclictest3987-21H222:10:210
2268599182,2cyclictest5389-21fschecks_time19:35:172
22685991816,1cyclictest28-21ksoftirqd/222:59:412
22685991815,2cyclictest9768-21python300:30:002
22685991814,3cyclictest1525-21lxd21:32:502
22685991814,3cyclictest0-21swapper/219:21:262
2268599180,2cyclictest4035-21H222:10:212
2268599180,2cyclictest3981-21H222:10:212
2268599180,2cyclictest1375-21munin-node20:25:112
2268599180,17cyclictest3987-21H222:10:212
2268599180,17cyclictest14712-21wc20:50:142
2268599180,11cyclictest0-21swapper/223:52:362
22681991816,1cyclictest21-21ksoftirqd/120:40:481
22681991813,4cyclictest870-21systemd-logind21:04:521
2268199181,2cyclictest9260-21switchtime19:40:211
2268199181,16cyclictest22691-21ps20:05:191
2268199181,16cyclictest18839-21proc_pri20:55:201
2268199180,2cyclictest4099-21H222:10:211
2268199180,2cyclictest3991-21H222:10:211
2268199180,1cyclictest0-21swapper/119:12:221
2268199180,17cyclictest1746-21nvmesmart_nvme023:15:191
2268199180,15cyclictest3989-21H222:10:211
2268199180,15cyclictest3981-21H222:10:211
22680991816,1cyclictest9-21ksoftirqd/000:15:210
22680991816,1cyclictest0-21swapper/021:45:120
22680991815,2cyclictest21584-21chrt21:56:170
2268099181,2cyclictest1140-21snapd00:32:310
2268099181,16cyclictest1140-21snapd23:50:010
2268099180,3cyclictest3053-21systemd-logind00:28:510
2268099180,18cyclictest0-21swapper/020:59:420
2268099180,17cyclictest3991-21H222:10:210
2268099180,16cyclictest0-21swapper/019:28:130
22685991715,1cyclictest5784-21nfsd422:25:182
22685991715,1cyclictest0-21swapper/220:42:102
22685991714,2cyclictest4099-21H222:10:212
22685991714,2cyclictest26945-21latency_hist23:05:012
22685991714,2cyclictest23706-21ntp_states22:00:182
22685991714,2cyclictest22509-21python321:05:002
22685991714,2cyclictest21750-21expr20:05:142
22685991714,2cyclictest14861-21pzem_power22:40:192
22685991714,2cyclictest13921-21/usr/sbin/munin19:50:172
2268599170,2cyclictest7739-21grep19:40:142
2268599170,2cyclictest6603-21vmstat00:20:222
2268599170,2cyclictest32166-21pzem_energy22:15:192
2268599170,2cyclictest23912-21fschecks_time21:05:132
2268599170,2cyclictest20804-21smtpd22:51:242
2268599170,2cyclictest2074-21apache_volume21:25:122
2268599170,2cyclictest19959-21proc_pri20:00:182
2268599170,2cyclictest1774-21fschecks_time22:20:172
2268599170,2cyclictest17376-21apache_accesses20:55:122
2268599170,2cyclictest12185-21nfsd421:40:182
2268599170,2cyclictest11899-21ntp_offset00:30:192
2268599170,2cyclictest1133-21snapd00:17:312
2268599170,2cyclictest10664-21cat19:45:142
2268599170,16cyclictest4252-21fschecks_time20:30:152
2268599170,16cyclictest4035-21H222:10:212
2268599170,16cyclictest32294-21fschecks_time21:20:152
2268599170,16cyclictest31099-21nfsd423:10:172
2268599170,16cyclictest29766-21wc00:05:212
2268599170,16cyclictest26790-21ntp_kernel_pll_00:00:192
2268599170,16cyclictest25068-21latency20:10:182
2268599170,16cyclictest23177-21ls23:55:132
2268599170,16cyclictest2069-21systemd-udevd00:14:512
2268599170,16cyclictest17521-21fschecks_time21:50:162
2268599170,16cyclictest14087-21/usr/sbin/munin21:45:162
2268599170,16cyclictest0-21swapper/222:35:012
2268199172,15cyclictest21-21ksoftirqd/122:29:271
22681991715,1cyclictest21-21ksoftirqd/120:02:451
22681991714,2cyclictest6603-21timerwakeupswit19:35:241
22681991714,2cyclictest3985-21H222:10:211
22681991714,2cyclictest31717-21df00:10:131
22681991714,2cyclictest30249-21perf22:15:011
22681991714,2cyclictest22757-21grep22:55:171
22681991714,2cyclictest21099-21pzem21:55:211
22681991714,2cyclictest2069-21systemd-udevd23:24:511
22681991714,2cyclictest2069-21systemd-udevd23:24:511
22681991714,2cyclictest1515-21lxd21:24:501
22681991714,2cyclictest1135-21snapd23:14:441
22681991714,2cyclictest10506-21cat22:35:131
22681991714,2cyclictest0-21swapper/100:20:211
2268199171,15cyclictest21-21ksoftirqd/123:01:211
2268199171,15cyclictest0-21swapper/121:10:141
22681991710,6cyclictest843-21systemd-network21:40:151
2268199170,3cyclictest12877-21nfsd423:35:171
2268199170,2cyclictest870-21systemd-logind00:18:511
2268199170,2cyclictest19071-21cat22:50:131
2268199170,2cyclictest11714-21netstat00:30:181
2268199170,2cyclictest10612-21expr19:45:141
2268199170,1cyclictest3981-21H222:10:211
2268199170,16cyclictest4035-21H222:10:211
2268199170,16cyclictest3981-21H222:10:211
2268199170,16cyclictest3416-21qmgr21:51:041
2268199170,16cyclictest3351-21lxd21:32:501
2268199170,16cyclictest32703-21/usr/sbin/munin19:25:221
2268199170,16cyclictest32374-21store20:25:011
2268199170,16cyclictest31856-21nfsd422:15:171
2268199170,16cyclictest3053-21systemd-logind21:18:521
2268199170,16cyclictest3053-21systemd-logind00:06:511
2268199170,16cyclictest16053-21expr19:55:131
2268199170,16cyclictest0-21swapper/122:33:141
22680991716,1cyclictest9-21ksoftirqd/019:35:120
22680991715,1cyclictest9-21ksoftirqd/020:05:430
22680991714,2cyclictest9273-21systemd-tmpfile22:30:530
22680991714,2cyclictest6966-21turbostat.cron00:25:000
22680991714,2cyclictest3991-21H222:10:210
22680991714,2cyclictest3991-21H222:10:210
22680991714,2cyclictest32614-21appstreamcli20:25:040
22680991714,2cyclictest31680-21runrttasks20:22:090
22680991714,2cyclictest29444-21df_inode21:15:140
22680991714,2cyclictest25334-21cat00:00:010
22680991714,2cyclictest2334-21nfsd422:20:190
22680991714,2cyclictest1540-21nfsd423:15:180
22680991714,2cyclictest14719-21ntp_offset22:40:180
22680991714,2cyclictest11129-21cut22:35:150
22680991713,3cyclictest1133-21snapd22:50:030
22680991712,2cyclictest3987-21H222:10:210
2268099170,2cyclictest4035-21H222:10:210
2268099170,2cyclictest4035-21H222:10:210
2268099170,2cyclictest3987-21H222:10:210
2268099170,2cyclictest26431-21ntp_offset22:05:200
2268099170,2cyclictest24953-21fschecks_time23:00:150
2268099170,2cyclictest14061-21perf23:40:000
2268099170,2cyclictest11398-21expr21:40:140
2268099170,16cyclictest8017-21date21:35:010
2268099170,16cyclictest3979-21H222:10:210
2268099170,16cyclictest32339-21nfsd400:10:170
2268099170,16cyclictest26915-21netstat19:15:170
2268099170,16cyclictest19568-21missed_timers20:00:160
2268099170,16cyclictest11826-21/usr/sbin/munin19:45:210
2268099170,16cyclictest1139-21snapd23:40:010
22685991614,1cyclictest0-21swapper/223:45:052
22685991614,1cyclictest0-21swapper/223:45:042
22685991614,1cyclictest0-21swapper/200:35:342
22685991613,2cyclictest27937-21cpu22:10:132
22685991613,2cyclictest20518-21expr21:55:172
2268599160,1cyclictest25243-21cpuspeed_turbos22:05:152
2268599160,1cyclictest0-21swapper/223:25:192
2268599160,1cyclictest0-21swapper/222:30:152
2268599160,15cyclictest3968-21fschecks_count23:20:142
2268599160,15cyclictest3968-21fschecks_count23:20:142
2268599160,15cyclictest32581-21ntp_states19:25:202
2268599160,15cyclictest26432-21expr21:10:142
2268599160,15cyclictest1244-21snapd21:15:012
2268599160,15cyclictest10369-21sed23:30:202
2268599160,15cyclictest0-21swapper/222:45:112
22681991614,1cyclictest25489-21grep00:00:141
22681991614,1cyclictest0-21swapper/123:55:131
22681991614,1cyclictest0-21swapper/123:50:151
22681991614,1cyclictest0-21swapper/123:45:131
22681991614,1cyclictest0-21swapper/123:45:131
22681991614,1cyclictest0-21swapper/123:26:371
22681991614,1cyclictest0-21swapper/122:45:001
22681991614,1cyclictest0-21swapper/122:20:091
22681991614,1cyclictest0-21swapper/121:45:141
22681991614,1cyclictest0-21swapper/120:50:471
22681991614,1cyclictest0-21swapper/119:15:171
2268199160,1cyclictest3983-21H222:10:211
2268199160,1cyclictest13026-21apache_accesses19:50:121
2268199160,15cyclictest8057-21/usr/sbin/munin21:35:121
2268199160,15cyclictest7329-21sed20:35:161
2268199160,15cyclictest0-21swapper/122:00:131
22680991615,1cyclictest9-21ksoftirqd/021:28:250
22680991614,1cyclictest0-21swapper/023:30:130
22680991614,1cyclictest0-21swapper/022:15:130
22680991614,1cyclictest0-21swapper/021:05:150
22680991614,1cyclictest0-21swapper/020:30:550
22680991614,1cyclictest0-21swapper/000:05:110
22680991613,2cyclictest3983-21H222:10:210
22680991613,2cyclictest30463-21df23:10:130
22680991613,2cyclictest15354-21smartctl20:50:160
2268099160,1cyclictest0-21swapper/021:50:130
2268099160,15cyclictest8317-21expr21:35:150
2268099160,15cyclictest5821-21grep22:25:180
2268099160,15cyclictest32337-21sed21:20:150
2268099160,15cyclictest28462-21grep23:05:190
2268099160,15cyclictest23719-21nvmesmart_nvme022:00:180
2268099160,15cyclictest13039-21/usr/sbin/munin19:50:140
2268099160,15cyclictest1140-21snapd23:25:010
2268099160,15cyclictest0-21swapper/023:45:130
2268099160,15cyclictest0-21swapper/023:45:130
2268099160,15cyclictest0-21swapper/022:10:200
2268099160,15cyclictest0-21swapper/021:10:150
2268099160,15cyclictest0-21swapper/019:40:220
2268099160,15cyclictest0-21swapper/000:00:200
2268199150,1cyclictest0-21swapper/122:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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