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2025-12-14 - 15:44
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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 Sun Dec 14, 2025 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30280992322,0cyclictest0-21swapper/109:05:351
3028099225,11cyclictest0-21swapper/112:10:551
3028099223,14cyclictest677-21perf12:00:011
3028099220,21cyclictest0-21swapper/108:52:151
3028499210,3cyclictest0-21swapper/207:44:392
3027499210,6cyclictest426-21systemd-udevd07:52:500
3028499203,2cyclictest1856-21systemd-udevd09:30:502
30284992017,2cyclictest3985-21H222:02:192
30284992016,3cyclictest0-21swapper/208:30:442
3028499200,18cyclictest18630-21head10:37:152
30280992016,3cyclictest0-21swapper/107:15:241
3027499202,15cyclictest0-21swapper/007:41:260
3028499190,2cyclictest3989-21H222:02:192
3028499190,16cyclictest3989-21H222:02:192
3028099192,2cyclictest30996-21latency_hist09:05:011
30280991914,2cyclictest3976-21H222:02:191
3028099191,3cyclictest0-21swapper/109:34:421
3028099190,4cyclictest23251-21cpuspeed_turbos10:47:101
3028099190,4cyclictest23251-21cpuspeed_turbos10:47:091
3028099190,18cyclictest3976-21H222:02:191
3028099190,16cyclictest4035-21H222:02:191
3028099190,16cyclictest3989-21H222:02:191
3028099190,16cyclictest3987-21H222:02:191
3028099190,16cyclictest3976-21H222:02:191
30274991916,2cyclictest3976-21H222:02:190
30274991916,1cyclictest0-21swapper/008:23:210
30274991914,3cyclictest1829-21systemd-journal08:52:350
30274991913,3cyclictest0-21swapper/012:30:340
3027499190,16cyclictest3985-21H222:02:190
3027499190,16cyclictest3983-21H222:02:190
3028499182,1cyclictest223782chrt10:43:202
3028499182,15cyclictest31212-21taskset11:01:332
3028499182,15cyclictest28-21ksoftirqd/212:08:252
3028499182,15cyclictest12641-21cron09:30:002
30284991816,1cyclictest28-21ksoftirqd/210:20:422
30284991816,1cyclictest0-21swapper/210:32:242
30284991815,2cyclictest8749-21idleruntime-cro10:20:002
30284991815,2cyclictest4099-21H222:02:192
30284991815,2cyclictest3987-21H222:02:192
30284991815,2cyclictest18951-21grep08:42:162
30284991814,3cyclictest3983-21H222:02:192
3028499181,2cyclictest3987-21H222:02:192
3028499180,2cyclictest3989-21H222:02:192
3028499180,2cyclictest3983-21H222:02:192
3028499180,2cyclictest3979-21H222:02:192
3028499180,2cyclictest0-21swapper/211:07:572
3028499180,16cyclictest3983-21H222:02:192
3028499180,16cyclictest3976-21H222:02:192
3028499180,15cyclictest3985-21H222:02:192
3028499180,15cyclictest3976-21H222:02:192
3028099182,15cyclictest3987-21H222:02:191
3028099182,15cyclictest189902sleep112:31:211
30280991816,1cyclictest0-21swapper/109:53:081
30280991815,2cyclictest32257-21latency11:02:131
30280991815,2cyclictest12180-21cpuspeed_turbos08:32:091
30280991815,2cyclictest10473-21/usr/sbin/munin09:27:091
30280991814,3cyclictest3979-21H222:02:191
3028099181,16cyclictest3991-21H222:02:191
3028099181,16cyclictest21672-21sed11:40:011
3028099181,16cyclictest21672-21sed11:40:001
3028099181,16cyclictest0-21swapper/112:26:291
3028099180,4cyclictest0-21swapper/110:25:111
3028099180,2cyclictest4099-21H222:02:191
3028099180,2cyclictest3985-21H222:02:191
3028099180,2cyclictest3983-21H222:02:191
3028099180,2cyclictest3976-21H222:02:191
3028099180,1cyclictest3981-21H222:02:191
3028099180,17cyclictest4035-21H222:02:191
3028099180,16cyclictest3985-21H222:02:191
3028099180,15cyclictest4099-21H222:02:191
3027499182,15cyclictest0-21swapper/007:27:470
3027499182,15cyclictest0-21swapper/007:15:170
30274991817,1cyclictest9-21ksoftirqd/008:45:000
30274991816,1cyclictest0-21swapper/012:12:340
30274991816,1cyclictest0-21swapper/012:07:420
30274991816,1cyclictest0-21swapper/010:16:120
30274991815,2cyclictest3983-21H222:02:190
30274991814,3cyclictest3989-21H222:02:190
3027499181,1cyclictest0-21swapper/011:20:380
3027499180,2cyclictest3979-21H222:02:190
3027499180,17cyclictest3981-21H222:02:190
3027499180,15cyclictest3981-21H222:02:190
3027499180,15cyclictest3976-21H222:02:190
3028499172,1cyclictest0-21swapper/209:12:252
30284991715,1cyclictest3981-21H222:02:192
30284991715,1cyclictest21941-21/usr/sbin/munin09:47:112
30284991714,2cyclictest3983-21H222:02:192
30284991714,2cyclictest3981-21H222:02:192
30284991714,2cyclictest3981-21H222:02:192
30284991714,2cyclictest31656-21expr09:07:102
30284991714,2cyclictest29932-21rm08:05:022
30284991714,2cyclictest29932-21rm08:05:012
30284991714,2cyclictest1970-21ntp_kernel_pll_10:07:142
3028499171,15cyclictest28-21ksoftirqd/209:50:432
3028499170,2cyclictest5644-21timerandwakeup08:17:172
3028499170,2cyclictest4099-21H222:02:192
3028499170,2cyclictest3989-21H222:02:192
3028499170,2cyclictest3981-21H222:02:192
3028499170,2cyclictest3976-21H222:02:192
3028499170,2cyclictest23953-21sessionclean12:38:592
3028499170,2cyclictest13269-21expr07:37:082
3028499170,1cyclictest3991-21H222:02:192
3028499170,1cyclictest3989-21H222:02:192
3028499170,1cyclictest3976-21H222:02:192
3028499170,16cyclictest3987-21H222:02:192
3028499170,16cyclictest3985-21H222:02:192
3028499170,16cyclictest30360-21cron11:55:002
3028499170,16cyclictest28797-21ntp_states09:57:152
3028499170,16cyclictest26297-21awk07:57:182
3028499170,16cyclictest23048-21chrt10:46:552
3028499170,16cyclictest23048-21chrt10:46:552
3028499170,16cyclictest2244-21nvmesmart_nvme008:12:152
3028499170,16cyclictest22149-21sed08:47:162
3028499170,16cyclictest16766-21uname11:32:132
3028499170,16cyclictest14341-21nfsd411:27:132
3028499170,15cyclictest3976-21H222:02:192
3028099172,1cyclictest21-21ksoftirqd/110:30:031
30280991716,1cyclictest21-21ksoftirqd/110:58:101
30280991715,1cyclictest7805-21expr11:17:091
30280991715,1cyclictest0-21swapper/110:52:121
30280991714,2cyclictest4035-21H222:02:191
30280991714,2cyclictest1744-21needreboot10:07:141
30280991714,2cyclictest14734-21chrt08:36:241
3028099170,6cyclictest0-21swapper/110:40:451
3028099170,2cyclictest4035-21H222:02:191
3028099170,2cyclictest3983-21H222:02:191
3028099170,2cyclictest25807-21proc_pri07:57:141
3028099170,2cyclictest23868-21munin-run07:55:011
3028099170,2cyclictest23013-21grep12:37:151
3028099170,2cyclictest10149-21chrt10:22:121
3028099170,2cyclictest0-21swapper/112:08:071
3028099170,1cyclictest4035-21H222:02:191
3028099170,1cyclictest0-21swapper/111:27:011
3028099170,1cyclictest0-21swapper/107:39:021
3028099170,16cyclictest9279-21chrt08:26:081
3028099170,16cyclictest7984-21grep09:22:091
3028099170,16cyclictest3987-21H222:02:191
3028099170,16cyclictest3987-21H222:02:191
3028099170,16cyclictest3976-21H222:02:191
3028099170,16cyclictest3119-21nfsd412:02:131
3028099170,16cyclictest27546-21expr08:02:101
3028099170,16cyclictest18746-21date09:40:011
3028099170,16cyclictest0-21swapper/108:05:521
3028099170,16cyclictest0-21swapper/108:05:511
30274991716,1cyclictest9-21ksoftirqd/009:57:250
30274991715,1cyclictest9-21ksoftirqd/009:20:530
30274991715,1cyclictest0-21swapper/012:15:150
30274991715,1cyclictest0-21swapper/008:17:100
30274991714,2cyclictest4099-21H222:02:190
30274991714,2cyclictest4035-21H222:02:190
30274991714,2cyclictest3985-21H222:02:190
30274991714,2cyclictest3983-21H222:02:190
30274991714,2cyclictest3979-21H222:02:190
30274991714,2cyclictest3979-21H222:02:190
30274991714,2cyclictest3976-21H222:02:190
30274991714,2cyclictest24594-21http11:45:010
30274991714,2cyclictest19816-21df09:42:090
30274991714,2cyclictest1517-21lxd08:38:380
3027499170,2cyclictest5032-21/usr/sbin/munin09:17:070
3027499170,2cyclictest4636-21cat09:15:020
3027499170,2cyclictest4099-21H222:02:190
3027499170,2cyclictest4099-21H222:02:190
3027499170,2cyclictest4099-21H222:02:190
3027499170,2cyclictest26581-21hddtemp_smartct08:57:110
3027499170,2cyclictest21802-21apache_volume12:37:090
3027499170,2cyclictest0-21swapper/010:27:090
3027499170,1cyclictest0-21swapper/008:29:330
3027499170,16cyclictest426-21systemd-udevd09:34:510
3027499170,16cyclictest4099-21H222:02:190
3027499170,16cyclictest3991-21H222:02:190
3027499170,16cyclictest3989-21H222:02:190
3027499170,16cyclictest3985-21H222:02:190
3027499170,16cyclictest3985-21H222:02:190
3027499170,16cyclictest3979-21H222:02:190
3027499170,16cyclictest3979-21H222:02:190
3027499170,16cyclictest3979-21H222:02:190
3027499170,16cyclictest3086-21postgres11:02:200
3027499170,16cyclictest30639-21expr10:02:080
3027499170,16cyclictest25729-21ntpq07:57:130
3027499170,16cyclictest25226-21cron10:50:010
3027499170,16cyclictest25226-21cron10:50:000
3027499170,16cyclictest15288-21latency_hist11:30:010
3027499170,16cyclictest12941-21apt-key09:30:010
3027499170,16cyclictest0-21swapper/007:11:060
3027499170,15cyclictest3987-21H222:02:190
30284991614,1cyclictest0-21swapper/208:25:162
30284991613,2cyclictest3983-21H222:02:192
3028499160,1cyclictest0-21swapper/212:02:092
3028499160,15cyclictest3989-21H222:02:192
3028499160,15cyclictest23476-21expr08:52:082
3028499160,15cyclictest21807-21df_inode07:52:092
3028499160,15cyclictest0-21swapper/209:17:102
30280991614,1cyclictest0-21swapper/109:46:091
30280991613,2cyclictest3981-21H222:02:191
30280991613,2cyclictest16054-21expr07:42:091
3028099160,15cyclictest3985-21H222:02:191
3028099160,15cyclictest3979-21H222:02:191
30274991614,1cyclictest0-21swapper/010:55:460
30274991613,2cyclictest3985-21H222:02:190
3027499160,2cyclictest2203-21cat12:02:100
3027499160,15cyclictest399-20systemd-journal07:45:370
3027499160,15cyclictest24806-21tr09:52:100
3027499160,15cyclictest15932-21netstat10:32:120
3027499160,15cyclictest1244-21snapd07:36:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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