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2026-08-21 - 22:22
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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 Fri Aug 21, 2026 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2974699260,17cyclictest28-21ksoftirqd/211:21:162
2974699241,15cyclictest0-21swapper/212:26:242
2974499220,18cyclictest0-21swapper/008:57:430
2974499220,18cyclictest0-21swapper/008:57:420
2974699214,16cyclictest0-21swapper/208:25:132
29746992018,1cyclictest0-21swapper/212:07:262
2974699200,19cyclictest843-21systemd-network08:13:332
29744992018,1cyclictest0-21swapper/009:39:390
29746991918,0cyclictest0-21swapper/210:20:412
29746991917,1cyclictest0-21swapper/211:33:302
29746991917,1cyclictest0-21swapper/210:25:202
29746991917,1cyclictest0-21swapper/209:20:022
2974699190,2cyclictest3981-21H222:10:212
2974699190,18cyclictest1075-21if_lxdbr012:00:172
2974699190,17cyclictest426-21systemd-udevd07:38:522
2974699190,16cyclictest3983-21H222:10:212
2974599193,15cyclictest26241-21fw_packets10:50:141
29745991916,2cyclictest3053-21systemd-logind12:34:511
29745991910,0cyclictest0-21swapper/108:11:421
2974599190,16cyclictest3991-21H222:10:211
2974599190,16cyclictest3983-21H222:10:211
2974499193,15cyclictest993-21dbus-daemon09:40:220
29744991915,1cyclictest0-21swapper/010:10:170
29744991911,4cyclictest0-21swapper/010:35:130
2974499190,2cyclictest4035-21H222:10:210
2974699182,1cyclictest21562-21processes10:40:192
2974699182,15cyclictest28-21ksoftirqd/212:34:292
2974699182,15cyclictest0-21swapper/208:55:522
2974699182,15cyclictest0-21swapper/208:55:522
29746991816,1cyclictest28-21ksoftirqd/208:36:482
29746991816,1cyclictest28-21ksoftirqd/207:56:092
29746991816,1cyclictest0-21swapper/211:40:002
29746991816,1cyclictest0-21swapper/211:40:002
29746991815,2cyclictest3989-21H222:10:212
29746991813,2cyclictest4099-21H222:10:212
2974699180,3cyclictest23670-21proxymap11:41:342
2974699180,15cyclictest3983-21H222:10:212
29745991816,1cyclictest3991-21H222:10:211
29745991815,2cyclictest3981-21H222:10:211
29745991814,3cyclictest4035-21H222:10:211
29745991814,3cyclictest3976-21H222:10:211
29745991814,3cyclictest3976-21H222:10:211
29745991814,3cyclictest32040-21sshd07:10:571
29745991814,3cyclictest14499-21snapd08:40:281
2974599180,3cyclictest2640-21cut11:05:161
2974599180,2cyclictest3989-21H222:10:211
2974599180,17cyclictest2007-21systemd-journal12:21:361
2974599180,17cyclictest0-21swapper/108:52:551
2974499183,1cyclictest0-21swapper/009:55:480
29744991814,3cyclictest3987-21H222:10:210
29744991814,3cyclictest3450-21gsd-color11:00:110
2974499181,2cyclictest906-21awk08:10:190
2974499180,2cyclictest3989-21H222:10:210
2974499180,2cyclictest3987-21H222:10:210
2974499180,17cyclictest5506-21gpgv08:20:020
2974499180,17cyclictest426-21systemd-udevd07:46:520
2974499180,17cyclictest3989-21H222:10:210
2974499180,17cyclictest3987-21H222:10:210
2974499180,15cyclictest4035-21H222:10:210
29746991715,1cyclictest28498-21cpuspeed_turbos10:55:142
29746991715,1cyclictest28-21ksoftirqd/212:17:142
29746991715,1cyclictest15111-21tune2fs10:30:152
29746991714,2cyclictest6665-21expr07:25:142
29746991714,2cyclictest6330-21cat08:20:132
29746991714,2cyclictest4035-21H222:10:212
29746991714,2cyclictest399-20systemd-journal08:04:562
29746991714,2cyclictest3989-21H222:10:212
29746991714,2cyclictest29532-21nfsd409:00:182
29746991714,2cyclictest23081-21cstates10:45:132
29746991714,2cyclictest2070-21expr09:10:122
29746991714,2cyclictest19473-21kernelversion09:40:182
29746991714,2cyclictest11293-21cron07:35:002
29746991714,1cyclictest0-21swapper/212:20:192
29746991714,1cyclictest0-21swapper/209:15:142
29746991711,5cyclictest426-21systemd-udevd08:30:522
29746991711,5cyclictest426-21systemd-udevd08:30:522
2974699171,15cyclictest21829-21nfsd407:50:172
2974699170,2cyclictest6256-21egrep10:15:132
2974699170,2cyclictest6256-21egrep10:15:122
2974699170,2cyclictest5407-21cat07:20:202
2974699170,2cyclictest5289-21fschecks_count11:10:152
2974699170,2cyclictest426-21systemd-udevd10:52:522
2974699170,2cyclictest3976-21H222:10:212
2974699170,2cyclictest16790-21grep07:40:202
2974699170,1cyclictest1522-21lxd08:50:452
2974699170,16cyclictest7544-21tr11:15:122
2974699170,16cyclictest7428-21nfsd412:10:162
2974699170,16cyclictest3991-21H222:10:212
2974699170,16cyclictest3991-21H222:10:212
2974699170,16cyclictest3991-21H222:10:212
2974699170,16cyclictest3053-21systemd-logind09:56:512
2974699170,16cyclictest14499-21snapd12:37:462
2974699170,16cyclictest0-21swapper/211:57:132
2974699170,16cyclictest0-21swapper/211:30:002
2974699170,16cyclictest0-21swapper/211:05:202
2974699170,16cyclictest0-21swapper/209:33:062
2974699170,16cyclictest0-21swapper/208:15:192
29745991715,1cyclictest0-21swapper/111:40:011
29745991714,2cyclictest8598-21perf07:30:001
29745991714,2cyclictest5498-21latency_hist08:20:011
29745991714,2cyclictest4597-21nfsd412:05:191
29745991714,2cyclictest3987-21H222:10:211
29745991714,2cyclictest3987-21H222:10:211
29745991714,2cyclictest3981-21H222:10:211
29745991714,2cyclictest3979-21H222:10:211
29745991714,2cyclictest24636-21ls11:45:141
29745991714,2cyclictest15649-21awk12:25:161
29745991714,2cyclictest1300-21lxd10:30:441
29745991714,2cyclictest10762-21df09:25:151
29745991714,2cyclictest10542-21pzem_voltage10:20:201
29745991714,2cyclictest0-21swapper/112:19:591
2974599170,2cyclictest3983-21H222:10:211
2974599170,2cyclictest2069-21systemd-udevd07:36:521
2974599170,2cyclictest14903-21cat08:35:141
2974599170,2cyclictest14370-21cut10:30:011
2974599170,2cyclictest1159-21wc12:00:171
2974599170,16cyclictest870-21systemd-logind10:46:511
2974599170,16cyclictest7201-21grep08:20:171
2974599170,16cyclictest5468-21sed07:20:201
2974599170,16cyclictest4956-21awk10:10:191
2974599170,16cyclictest3991-21H222:10:211
2974599170,16cyclictest3991-21H222:10:211
2974599170,16cyclictest3989-21H222:10:211
2974599170,16cyclictest3987-21H222:10:211
2974599170,16cyclictest3987-21H222:10:211
2974599170,16cyclictest3987-21H222:10:211
2974599170,16cyclictest3981-21H222:10:211
2974599170,16cyclictest3976-21H222:10:211
2974599170,16cyclictest3976-21H222:10:211
2974599170,16cyclictest3053-21systemd-logind12:38:511
2974599170,16cyclictest29451-21grep10:55:171
2974599170,16cyclictest24045-21if_enp1s007:55:171
2974599170,16cyclictest20549-21timerandwakeup11:35:201
2974599170,16cyclictest20549-21timerandwakeup11:35:201
2974599170,16cyclictest14500-21snapd10:15:281
2974599170,16cyclictest14500-21snapd10:15:271
2974599170,16cyclictest10840-21cat08:25:211
2974599170,15cyclictest29876-21idleruntime08:05:161
29744991715,1cyclictest9-21ksoftirqd/009:25:320
29744991715,1cyclictest9-21ksoftirqd/007:44:130
29744991715,1cyclictest0-21swapper/007:55:170
29744991714,2cyclictest4099-21H222:10:210
29744991714,2cyclictest399-20systemd-journal08:00:030
29744991714,2cyclictest3987-21H222:10:210
29744991714,2cyclictest3983-21H222:10:210
29744991714,2cyclictest3976-21H222:10:210
29744991714,2cyclictest26770-21grep11:50:000
29744991714,2cyclictest21985-21cat11:40:130
29744991714,2cyclictest0-21swapper/010:45:170
29744991713,3cyclictest3976-21H222:10:210
29744991713,3cyclictest14550-21snapd08:40:280
29744991713,2cyclictest3979-21H222:10:210
2974499171,2cyclictest3982-21H222:10:210
2974499171,15cyclictest0-21swapper/011:54:270
2974499170,2cyclictest6825-21df_inode10:15:130
2974499170,2cyclictest6825-21df_inode10:15:130
2974499170,2cyclictest3989-21H222:10:210
2974499170,2cyclictest3987-21H222:10:210
2974499170,2cyclictest3981-21H222:10:210
2974499170,2cyclictest14908-21proxymap11:26:330
2974499170,2cyclictest12769-21memory10:25:160
2974499170,1cyclictest0-21swapper/009:49:200
2974499170,16cyclictest7736-21pzem_voltage12:10:200
2974499170,16cyclictest7651-21ntpq07:25:170
2974499170,16cyclictest4951-21expr11:10:130
2974499170,16cyclictest3987-21H222:10:210
2974499170,16cyclictest3981-21H222:10:210
2974499170,16cyclictest3976-21H222:10:210
2974499170,16cyclictest2872-21systemd-logind11:36:520
2974499170,16cyclictest2872-21systemd-logind11:36:510
2974499170,16cyclictest24297-21cnf-update-db09:50:020
2974499170,16cyclictest20933-21expr07:50:130
2974499170,16cyclictest1678-21nfsd407:15:190
2974499170,16cyclictest11659-21/usr/sbin/munin08:30:210
2974499170,16cyclictest11659-21/usr/sbin/munin08:30:200
2974499170,14cyclictest0-21swapper/007:13:050
29746991613,2cyclictest4496-21sed10:10:162
29746991613,2cyclictest24338-21dpkg09:50:012
2974699161,1cyclictest0-21swapper/207:45:142
2974699160,15cyclictest31118-21cpuspeed_turbos09:05:132
2974699160,15cyclictest28422-21cut11:50:182
2974699160,15cyclictest0-21swapper/209:45:162
2974699160,15cyclictest0-21swapper/208:05:152
29745991614,1cyclictest3450-21gsd-color08:45:051
29745991614,1cyclictest18781-21ls07:45:171
29745991614,1cyclictest0-21swapper/111:55:151
29745991614,1cyclictest0-21swapper/111:00:151
29745991614,1cyclictest0-21swapper/110:05:141
29745991614,1cyclictest0-21swapper/108:00:031
29745991614,1cyclictest0-21swapper/107:50:121
2974599160,2cyclictest1929-21expr09:10:121
2974599160,1cyclictest0-21swapper/111:15:111
2974599160,15cyclictest8997-21apache_processe07:30:111
2974599160,15cyclictest16887-21nfsd409:35:171
2974599160,15cyclictest0-21swapper/109:45:161
29744991614,1cyclictest0-21swapper/012:25:110
29744991614,1cyclictest0-21swapper/012:20:140
29744991614,1cyclictest0-21swapper/012:05:130
29744991614,1cyclictest0-21swapper/012:00:130
29744991614,1cyclictest0-21swapper/010:50:120
29744991613,2cyclictest9449-21expr12:15:120
29744991613,2cyclictest2069-21systemd-udevd10:58:510
2974499161,14cyclictest0-21swapper/009:00:100
2974499160,1cyclictest0-21swapper/008:05:130
2974499160,1cyclictest0-21swapper/007:30:170
2974499160,15cyclictest29801-21chrt11:55:100
2974499160,15cyclictest0-21swapper/010:05:190
2974499160,15cyclictest0-21swapper/009:20:120
2974499160,15cyclictest0-21swapper/009:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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