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2026-06-04 - 20:55
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Thu Jun 04, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21365992515,10cyclictest0-21swapper/108:30:301
21365992515,10cyclictest0-21swapper/108:30:301
2136599240,23cyclictest18073-21gpgv11:50:001
2136999230,5cyclictest0-21swapper/210:32:592
2136999230,20cyclictest0-21swapper/207:43:512
21369992118,2cyclictest29138-21nfsd411:10:162
2136999200,0cyclictest0-21swapper/212:18:542
21365992017,2cyclictest19753-21ntp_kernel_pll_11:50:171
2135999204,15cyclictest0-21swapper/009:53:000
21359992012,4cyclictest0-21swapper/010:38:020
21369991917,1cyclictest0-21swapper/210:38:192
21369991914,4cyclictest0-21swapper/207:30:002
2136999190,18cyclictest399-20systemd-journal09:17:012
21365991917,1cyclictest0-21swapper/107:50:231
21365991910,9cyclictest0-21swapper/110:10:001
2135999195,13cyclictest0-21swapper/010:44:200
2135999192,2cyclictest27018-21grep10:10:120
21359991916,2cyclictest29053-21cut08:20:010
21359991914,1cyclictest0-21swapper/010:19:120
2136999182,1cyclictest7999-21sessionclean08:38:592
2136999182,15cyclictest25740-21grep11:05:142
21369991816,1cyclictest0-21swapper/210:47:092
21369991816,1cyclictest0-21swapper/210:10:012
21369991815,1cyclictest0-21swapper/211:15:172
21369991814,3cyclictest13689-21munin-run10:45:002
2136999181,16cyclictest4362-21grep09:30:142
2136999180,3cyclictest0-21swapper/212:00:132
2136999180,3cyclictest0-21swapper/207:10:442
2136999180,3cyclictest0-21swapper/207:10:442
2136999180,17cyclictest6312-21fschecks_count12:25:132
2136599182,1cyclictest25229-21processes08:10:201
2136599182,15cyclictest0-21swapper/112:17:571
2136599180,18cyclictest0-21swapper/107:43:521
2135999182,15cyclictest5778-21cat12:25:110
21359991815,2cyclictest32026-21seq07:28:170
21359991815,2cyclictest19325-21latency11:50:160
21359991815,1cyclictest0-21swapper/008:25:010
21359991814,3cyclictest14495-21snapd09:10:280
2135999180,17cyclictest3987-21H222:10:210
2135999180,17cyclictest3981-21H222:10:210
2135999180,16cyclictest2007-21systemd-journal08:10:120
21369991715,1cyclictest20645-21latency_hist10:00:012
21369991715,1cyclictest0-21swapper/212:31:052
21369991715,1cyclictest0-21swapper/208:40:182
21369991714,2cyclictest4166-21apache_volume11:25:102
21369991714,2cyclictest22293-21/usr/sbin/munin11:00:192
21369991714,2cyclictest21029-21gpgv10:00:012
21369991714,2cyclictest18334-21dpkg11:50:012
21369991713,3cyclictest0-21swapper/211:38:272
21369991713,3cyclictest0-21swapper/209:45:182
21369991713,2cyclictest32087-21systemctl08:25:022
2136999171,1cyclictest0-21swapper/207:35:142
2136999171,15cyclictest15311-21apt09:50:122
2136999170,2cyclictest423-21df10:20:132
2136999170,2cyclictest3983-21H222:10:212
2136999170,2cyclictest3976-21H222:10:212
2136999170,2cyclictest3976-21H222:10:212
2136999170,2cyclictest3954-21VM22:10:212
2136999170,2cyclictest3414-21master07:50:362
2136999170,2cyclictest30856-21ntpq12:10:192
2136999170,2cyclictest21848-21http_loadtime11:55:152
2136999170,1cyclictest0-21swapper/211:20:192
2136999170,16cyclictest6915-21/usr/sbin/munin09:35:152
2136999170,16cyclictest3053-21systemd-logind09:02:522
2136999170,16cyclictest30123-21uniq10:15:132
2136999170,16cyclictest30122-21kernelversion08:20:172
2136999170,16cyclictest26652-21ntpq09:10:182
2136999170,16cyclictest16898-21wc08:55:132
2136999170,16cyclictest16713-21munin-plugin-st08:55:002
2136999170,16cyclictest14550-21snapd10:52:572
2136999170,16cyclictest0-21swapper/212:35:042
2136999170,16cyclictest0-21swapper/212:05:152
21365991716,1cyclictest0-21swapper/109:54:001
21365991715,1cyclictest0-21swapper/111:15:011
21365991715,1cyclictest0-21swapper/110:03:501
21365991715,1cyclictest0-21swapper/109:11:521
21365991714,2cyclictest8423-21apache_processe12:30:091
21365991714,2cyclictest7028-21awk08:35:181
21365991714,2cyclictest3991-21H222:10:211
21365991714,2cyclictest3976-21H222:10:211
21365991714,2cyclictest31849-21perf10:20:001
21365991714,2cyclictest2872-21systemd-logind10:46:511
21365991714,2cyclictest22086-21expr07:10:151
21365991714,2cyclictest22086-21expr07:10:141
21365991714,2cyclictest22064-21taskset09:05:021
21365991714,2cyclictest11390-21/usr/sbin/munin08:45:191
21365991714,1cyclictest0-21swapper/111:44:191
2136599171,15cyclictest3594-21chrt11:24:121
2136599170,3cyclictest5601-21lxd08:00:431
2136599170,2cyclictest726-21date11:20:001
2136599170,2cyclictest3991-21H222:10:211
2136599170,2cyclictest3981-21H222:10:211
2136599170,2cyclictest24989-21fschecks_count07:15:151
2136599170,2cyclictest1526-21lxd08:54:431
2136599170,2cyclictest1148-21nfsd410:20:161
2136599170,2cyclictest10751-21cron10:39:001
2136599170,16cyclictest5841-21cpuspeed_turbos10:30:131
2136599170,16cyclictest399-20systemd-journal10:52:001
2136599170,16cyclictest3991-21H222:10:211
2136599170,16cyclictest31766-21cron12:15:001
2136599170,16cyclictest23643-21cat08:10:011
2136599170,16cyclictest20933-21ntpq10:55:171
2136599170,16cyclictest16533-21grep07:55:181
2136599170,16cyclictest15945-21lxd07:32:431
2136599170,16cyclictest14505-21snapd11:25:271
2136599170,15cyclictest20344-21apt-get10:00:011
2135999172,1cyclictest9-21ksoftirqd/012:13:320
21359991715,1cyclictest0-21swapper/012:35:500
21359991714,2cyclictest6157-21expr08:35:140
21359991714,2cyclictest12236-21cat08:45:140
21359991713,3cyclictest0-21swapper/012:15:160
2135999171,15cyclictest10692-21missed_timers11:35:150
2135999171,15cyclictest10461-21chrt12:31:380
2135999170,2cyclictest20944-21nfsd409:00:160
2135999170,2cyclictest1516-21lxd09:26:430
2135999170,2cyclictest1516-21lxd07:58:430
2135999170,2cyclictest14504-21snapd11:10:280
2135999170,16cyclictest4395-21grep10:25:170
2135999170,16cyclictest3983-21H222:10:210
2135999170,16cyclictest3058-21rs:main0
2135999170,16cyclictest24401-21expr10:05:130
2135999170,16cyclictest16896-21ls11:45:210
2135999170,16cyclictest16037-21timerwakeupswit08:50:220
2135999170,15cyclictest3983-21H222:10:210
21369991614,1cyclictest28-21ksoftirqd/208:05:142
21369991614,1cyclictest0-21swapper/212:20:152
21369991614,1cyclictest0-21swapper/211:45:162
21369991614,1cyclictest0-21swapper/209:25:132
21369991614,1cyclictest0-21swapper/208:45:122
21369991614,1cyclictest0-21swapper/208:10:162
21369991614,1cyclictest0-21swapper/207:45:142
21369991613,2cyclictest455-21plymouthd07:15:132
21369991613,2cyclictest3044-21expr10:25:132
21369991613,2cyclictest28532-21ntpq07:20:182
21369991613,2cyclictest15789-21expr07:55:132
2136999160,1cyclictest26444-21apache_processe08:15:112
2136999160,1cyclictest0-21swapper/208:00:462
2136999160,15cyclictest3976-21H222:10:212
2136999160,15cyclictest3374-21expr08:30:132
2136999160,15cyclictest3374-21expr08:30:132
2136999160,15cyclictest0-21swapper/210:10:122
2136999160,15cyclictest0-21swapper/209:05:132
2136999160,15cyclictest0-21swapper/207:30:222
21365991614,1cyclictest32557-21ls08:25:131
21365991614,1cyclictest26444-21apache_processe08:15:121
21365991614,1cyclictest0-21swapper/112:05:141
21365991614,1cyclictest0-21swapper/112:00:151
21365991614,1cyclictest0-21swapper/111:55:131
21365991614,1cyclictest0-21swapper/111:30:131
21365991614,1cyclictest0-21swapper/111:09:201
21365991614,1cyclictest0-21swapper/110:40:121
21365991614,1cyclictest0-21swapper/110:25:121
21365991614,1cyclictest0-21swapper/109:45:171
21365991614,1cyclictest0-21swapper/109:40:151
21365991614,1cyclictest0-21swapper/109:25:231
21365991614,1cyclictest0-21swapper/109:20:121
21365991614,1cyclictest0-21swapper/107:25:181
21365991613,2cyclictest4365-21cut09:30:131
21365991613,2cyclictest4335-21latency07:35:141
21365991613,2cyclictest28258-21ps10:10:201
21365991612,3cyclictest0-21swapper/111:36:091
2136599160,15cyclictest6411-21hddtemp_smartct12:25:131
2136599160,15cyclictest30278-21missed_timers08:20:181
2136599160,15cyclictest22802-21expr11:00:131
2136599160,15cyclictest0-21swapper/109:35:141
2136599160,15cyclictest0-21swapper/109:05:141
2136599160,15cyclictest0-21swapper/107:45:141
2136599160,15cyclictest0-21swapper/107:20:181
21359991614,1cyclictest6562-21expr07:40:140
21359991614,1cyclictest22784-21expr11:00:120
21359991614,1cyclictest16850-21dpkg10:50:120
21359991614,1cyclictest0-21swapper/011:30:130
21359991614,1cyclictest0-21swapper/011:28:120
21359991614,1cyclictest0-21swapper/010:55:130
21359991614,1cyclictest0-21swapper/010:45:140
21359991614,1cyclictest0-21swapper/009:45:130
21359991614,1cyclictest0-21swapper/009:30:100
21359991614,1cyclictest0-21swapper/009:15:120
21359991614,1cyclictest0-21swapper/009:05:020
21359991614,1cyclictest0-21swapper/008:55:120
21359991614,1cyclictest0-21swapper/008:20:150
21359991614,1cyclictest0-21swapper/007:20:140
21359991613,2cyclictest6612-21if_err_lxdbr010:30:150
21359991613,2cyclictest32600-21apache_volume07:30:120
21359991613,2cyclictest18282-21cstates09:55:130
2135999161,1cyclictest9-21ksoftirqd/010:02:120
2135999160,2cyclictest3543-21fschecks_time12:20:150
2135999160,2cyclictest31054-21expr11:15:120
2135999160,1cyclictest0-21swapper/010:20:150
2135999160,15cyclictest8689-21apache_volume08:40:100
2135999160,15cyclictest7960-21latency09:35:160
2135999160,15cyclictest4136-21idleruntime07:35:130
2135999160,15cyclictest31104-21expr09:20:130
2135999160,15cyclictest0-21swapper/012:05:160
2135999160,15cyclictest0-21swapper/012:00:130
2135999160,15cyclictest0-21swapper/011:20:130
2135999160,15cyclictest0-21swapper/007:50:010
2135999160,15cyclictest0-21swapper/007:45:140
2135999160,15cyclictest0-21swapper/007:20:010
21359991513,1cyclictest0-21swapper/008:30:170
21359991513,1cyclictest0-21swapper/008:30:170
2135999150,15cyclictest0-21swapper/008:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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