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2026-07-22 - 21:49
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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 Jul 22, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2470799223,16cyclictest3979-21H222:10:210
2470999213,11cyclictest11237-21gpgv08:40:012
24707992121,0cyclictest0-21swapper/010:10:170
2470799210,20cyclictest843-21systemd-network09:34:550
2470999204,9cyclictest0-21swapper/210:45:012
2470999203,16cyclictest0-21swapper/208:28:222
2470799200,19cyclictest14499-21snapd08:02:300
2470799200,19cyclictest14499-21snapd08:02:300
2470999193,15cyclictest0-21swapper/209:23:092
2470899193,1cyclictest3991-21H222:10:211
2470899192,16cyclictest2715-21smtpd12:13:451
24708991915,3cyclictest0-21swapper/107:16:431
2470799193,15cyclictest0-21swapper/009:09:450
2470799190,2cyclictest3976-21H222:10:210
24709991814,3cyclictest4035-21H222:10:212
24709991814,3cyclictest1522-21lxd11:44:432
24709991813,2cyclictest0-21swapper/209:00:552
2470999181,2cyclictest14505-21snapd10:20:282
2470999181,16cyclictest15964-21grep11:40:012
24708991816,1cyclictest0-21swapper/112:37:301
24708991815,2cyclictest3987-21H222:10:211
2470899180,3cyclictest28459-21/usr/sbin/munin10:05:211
2470899180,1cyclictest0-21swapper/111:10:181
2470899180,15cyclictest3989-21H222:10:211
2470899180,15cyclictest3976-21H222:10:211
2470799182,15cyclictest0-21swapper/007:24:450
24707991816,1cyclictest9-21ksoftirqd/012:20:000
24707991816,1cyclictest0-21swapper/011:51:070
24707991816,1cyclictest0-21swapper/010:15:150
24707991816,1cyclictest0-21swapper/009:19:300
2470799181,15cyclictest4099-21H222:10:210
2470799181,15cyclictest0-21swapper/008:30:210
2470799180,3cyclictest2904-21package-data-do08:25:010
2470799180,2cyclictest4099-21H222:10:210
2470799180,2cyclictest3976-21H222:10:210
2470799180,16cyclictest3979-21H222:10:210
24709991715,1cyclictest28-21ksoftirqd/209:56:422
24709991715,1cyclictest28-21ksoftirqd/207:18:302
24709991715,1cyclictest0-21swapper/207:40:092
24709991715,1cyclictest0-21swapper/207:25:222
24709991714,2cyclictest9277-21ntp_kernel_pll_11:25:192
24709991714,2cyclictest32482-21nfsd411:10:182
24709991714,2cyclictest25368-21kernelversion11:55:172
24709991714,2cyclictest13967-21chrt08:41:312
24709991714,2cyclictest12921-21cron11:35:002
24709991714,1cyclictest0-21swapper/209:33:502
24709991713,3cyclictest3991-21H222:10:212
24709991713,3cyclictest0-21swapper/208:20:212
2470999171,15cyclictest0-21swapper/208:09:322
2470999170,2cyclictest6641-21proc_pri11:20:182
2470999170,2cyclictest3979-21H222:10:212
2470999170,2cyclictest3979-21H222:10:212
2470999170,2cyclictest32450-21cpuspeed_turbos10:15:142
2470999170,2cyclictest29574-21cut12:05:012
2470999170,2cyclictest26561-21cat09:05:182
2470999170,2cyclictest22137-21awk10:50:212
2470999170,2cyclictest20394-21ntp_offset11:45:182
2470999170,2cyclictest14459-21/usr/sbin/munin12:35:172
2470999170,2cyclictest14002-21awk07:45:192
2470999170,1cyclictest0-21swapper/209:26:002
2470999170,16cyclictest399-20systemd-journal10:25:572
2470999170,16cyclictest3987-21H222:10:212
2470999170,16cyclictest3983-21H222:10:212
2470999170,16cyclictest3983-21H222:10:212
2470999170,16cyclictest3979-21H222:10:212
2470999170,16cyclictest3976-21H222:10:212
2470999170,16cyclictest3976-21H222:10:212
2470999170,16cyclictest3976-21H222:10:212
2470999170,16cyclictest3820-21proc_pri11:15:202
2470999170,16cyclictest18985-21sendmail_mailtr08:50:192
2470999170,16cyclictest14279-21nfsd409:40:172
2470999170,16cyclictest0-21swapper/207:30:442
2470899172,1cyclictest21-21ksoftirqd/112:29:141
24708991716,1cyclictest21-21ksoftirqd/111:44:081
24708991715,1cyclictest0-21swapper/112:31:241
24708991715,1cyclictest0-21swapper/108:07:391
24708991714,2cyclictest6554-21ntp_kernel_pll_11:20:171
24708991714,2cyclictest4099-21H222:10:211
24708991714,2cyclictest3983-21H222:10:211
24708991714,2cyclictest30572-21nfsd408:15:191
24708991714,2cyclictest26557-21cat09:05:171
24708991714,2cyclictest25180-21tr07:10:131
24708991714,2cyclictest20175-21/usr/sbin/munin10:50:181
24708991714,2cyclictest15892-21snapd10:38:091
24708991714,2cyclictest15754-21pzem_voltage10:40:221
24708991714,2cyclictest14069-21smtpd08:43:001
24708991714,2cyclictest1377-21lxd10:30:441
24708991714,2cyclictest13575-21expr09:40:121
24708991714,2cyclictest12149-21sed11:30:191
2470899170,2cyclictest4174-21timerandwakeup11:15:221
2470899170,2cyclictest3985-21H222:10:211
2470899170,2cyclictest3983-21H222:10:211
2470899170,2cyclictest3979-21H222:10:211
2470899170,2cyclictest3979-21H222:10:211
2470899170,2cyclictest24431-21/usr/sbin/munin11:55:151
2470899170,2cyclictest20081-21sendmail_mailqu09:50:191
2470899170,2cyclictest10694-21missed_timers07:40:181
2470899170,1cyclictest0-21swapper/111:26:031
2470899170,16cyclictest9382-21vmstat09:30:231
2470899170,16cyclictest843-21systemd-network09:56:331
2470899170,16cyclictest7233-21expr08:30:191
2470899170,16cyclictest6480-21fschecks_count10:25:161
2470899170,16cyclictest5028-21sed07:30:171
2470899170,16cyclictest4714-21plymouth10:20:201
2470899170,16cyclictest4445-21if_lxdbr012:15:171
2470899170,16cyclictest31205-21awk09:15:121
2470899170,16cyclictest30554-21cut12:05:151
2470899170,16cyclictest29220-21sed08:15:021
2470899170,16cyclictest24285-21/usr/sbin/munin10:55:181
2470899170,16cyclictest21867-21ls08:55:241
2470899170,15cyclictest3976-21H222:10:211
24707991715,1cyclictest10267-21switchtime08:35:220
24707991715,1cyclictest0-21swapper/007:55:240
24707991715,1cyclictest0-21swapper/007:25:210
24707991714,2cyclictest3053-21systemd-logind10:54:520
24707991714,2cyclictest2872-21systemd-logind12:00:520
24707991714,2cyclictest14499-21snapd09:35:280
24707991714,2cyclictest13611-21timerwakeupswit12:30:210
24707991714,2cyclictest12753-21cpu07:45:150
24707991713,3cyclictest0-21swapper/012:36:330
2470799171,15cyclictest1783-21tr09:20:150
2470799170,2cyclictest504-21expr12:10:130
2470799170,2cyclictest3989-21H222:10:210
2470799170,2cyclictest3989-21H222:10:210
2470799170,2cyclictest3985-21H222:10:210
2470799170,2cyclictest3985-21H222:10:210
2470799170,2cyclictest3983-21H222:10:210
2470799170,2cyclictest3979-21H222:10:210
2470799170,1cyclictest0-21swapper/010:36:420
2470799170,16cyclictest7096-21grep10:25:190
2470799170,16cyclictest3985-21H222:10:210
2470799170,16cyclictest24612-21cat09:00:220
2470799170,16cyclictest22629-21munin-run09:00:010
2470799170,16cyclictest19559-21expr11:45:130
2470799170,16cyclictest17119-21cut09:45:170
2470799170,16cyclictest16480-21cat07:50:180
2470799170,16cyclictest15945-21lxd08:08:440
2470799170,16cyclictest0-21swapper/011:25:560
2470799170,16cyclictest0-21swapper/008:15:090
24709991614,1cyclictest6294-21/usr/sbin/munin12:20:142
24709991614,1cyclictest31187-21/usr/sbin/munin09:15:122
24709991614,1cyclictest0-21swapper/212:05:152
24709991614,1cyclictest0-21swapper/211:50:152
24709991614,1cyclictest0-21swapper/211:00:142
24709991614,1cyclictest0-21swapper/210:30:192
24709991614,1cyclictest0-21swapper/210:00:172
24709991614,1cyclictest0-21swapper/208:45:142
24709991613,2cyclictest3989-21H222:10:212
24709991613,2cyclictest21336-21nfsd408:55:202
24709991613,2cyclictest16553-21idleruntime09:45:162
2470999160,1cyclictest0-21swapper/210:55:142
2470999160,15cyclictest4035-21H222:10:212
2470999160,15cyclictest28477-21apache_accesses09:10:102
2470999160,15cyclictest27644-21kernelversion10:05:172
2470999160,15cyclictest17509-21grep10:45:152
2470999160,15cyclictest12278-21expr12:30:122
2470999160,15cyclictest0-21swapper/209:35:142
2470999160,15cyclictest0-21swapper/207:55:192
24708991614,1cyclictest0-21swapper/111:50:151
24708991614,1cyclictest0-21swapper/109:45:141
24708991614,1cyclictest0-21swapper/108:45:181
24708991613,2cyclictest6467-21grep12:20:131
24708991613,2cyclictest22866-21apache_accesses09:00:131
24708991612,3cyclictest14504-21snapd09:25:581
2470899160,1cyclictest29982-21processes09:10:181
2470899160,1cyclictest239712chrt10:00:041
2470899160,1cyclictest1375-21munin-node07:55:141
2470899160,1cyclictest0-21swapper/112:05:011
2470899160,1cyclictest0-21swapper/109:35:191
2470899160,15cyclictest32434-21cpuspeed_turbos10:15:141
2470899160,15cyclictest19815-21if_enp1s011:45:151
2470899160,15cyclictest17406-21dpkg08:50:111
2470899160,15cyclictest10355-21threads08:35:221
2470899160,15cyclictest0-21swapper/111:35:121
2470899160,15cyclictest0-21swapper/107:25:221
2470899160,15cyclictest0-21swapper/107:20:131
24707991614,1cyclictest3991-21H222:10:210
24707991614,1cyclictest1-21systemd11:36:520
24707991614,1cyclictest0-21swapper/011:40:110
24707991614,1cyclictest0-21swapper/011:20:160
24707991614,1cyclictest0-21swapper/011:10:200
24707991614,1cyclictest0-21swapper/010:45:010
24707991614,1cyclictest0-21swapper/009:25:240
2470799161,1cyclictest9-21ksoftirqd/008:42:530
2470799160,2cyclictest29493-21sed09:10:140
2470799160,2cyclictest24547-21cpuspeed_turbos11:55:150
2470799160,15cyclictest4099-21H222:10:210
2470799160,15cyclictest399-20systemd-journal07:30:000
2470799160,15cyclictest30273-21expr12:05:140
2470799160,15cyclictest14895-21grep08:45:140
2470799160,15cyclictest14734-21cat10:40:150
2470799160,15cyclictest0-21swapper/012:25:160
2470799160,15cyclictest0-21swapper/011:05:210
2470799160,15cyclictest0-21swapper/011:00:130
2470799160,15cyclictest0-21swapper/009:40:130
2470799160,15cyclictest0-21swapper/008:50:090
2470999150,14cyclictest0-21swapper/207:35:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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