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2026-03-14 - 22:42
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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 Sat Mar 14, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21254992313,5cyclictest29730-21cat11:15:000
21254992313,5cyclictest0-21swapper/010:05:010
21256992212,7cyclictest0-21swapper/207:25:012
2125499222,3cyclictest0-21swapper/008:26:140
21256992117,3cyclictest0-21swapper/209:44:332
2125699200,17cyclictest0-21swapper/209:46:162
21255992014,5cyclictest870-21systemd-logind09:16:511
21255992013,6cyclictest426-21systemd-udevd09:20:521
21254992017,2cyclictest8983-21sh11:35:000
21254992017,2cyclictest28629-21if_lxdbr009:15:160
21254992016,3cyclictest0-21swapper/011:56:220
2125699192,3cyclictest0-21swapper/211:47:112
2125699192,1cyclictest0-21swapper/209:58:592
2125699192,16cyclictest8251-21ntp_kernel_err07:40:192
2125699190,18cyclictest0-21swapper/208:20:012
2125599192,1cyclictest0-21swapper/108:34:551
21255991915,1cyclictest0-21swapper/111:02:011
21255991912,6cyclictest426-21systemd-udevd07:16:511
2125599190,5cyclictest870-21systemd-logind10:36:521
21254991916,2cyclictest17778-21mailstats08:55:200
2125699186,11cyclictest0-21swapper/207:30:022
2125699182,15cyclictest0-21swapper/211:15:132
21256991816,1cyclictest28687-21ntp_offset11:10:172
21256991816,1cyclictest0-21swapper/211:00:212
21256991815,3cyclictest0-21swapper/212:18:492
21256991815,2cyclictest3206-21JS22:10:212
21256991815,2cyclictest26616-21tlsmgr10:59:412
21256991814,3cyclictest31577-21perf12:14:592
21256991814,3cyclictest24348-21http_loadtime12:00:162
2125599183,11cyclictest32348-21apt-get11:20:001
2125599182,15cyclictest238282chrt09:08:071
2125599182,15cyclictest0-21swapper/109:00:191
21255991814,1cyclictest0-21swapper/107:52:521
2125599180,17cyclictest399-20systemd-journal08:36:341
2125599180,16cyclictest1521-21lxd12:10:421
21254991816,1cyclictest23966-21grep10:05:140
21254991815,1cyclictest0-21swapper/010:45:570
2125499181,15cyclictest13716-21apt-config12:40:010
2125499180,17cyclictest399-20systemd-journal08:09:560
2125499180,16cyclictest21942-21wc11:00:150
2125699172,1cyclictest0-21swapper/211:25:132
21256991715,1cyclictest23889-21ionclean09:09:002
21256991715,1cyclictest0-21swapper/212:20:162
21256991714,2cyclictest8121-21ntpq09:35:212
21256991714,2cyclictest32381-21ls08:25:152
21256991714,2cyclictest2322-21ntp_kernel_err09:25:182
21256991714,2cyclictest1849-21munin-run10:25:002
21256991714,2cyclictest1516-21lxd07:36:412
21256991714,2cyclictest13564-21nfsd407:50:172
21256991714,2cyclictest1079-21cups-browsed08:00:202
2125699171,15cyclictest0-21swapper/208:20:232
2125699170,2cyclictest9306-21nfsd408:40:182
2125699170,2cyclictest7495-21chrt12:26:072
2125699170,2cyclictest4242-21grep09:30:122
2125699170,2cyclictest23345-21ntp_offset07:10:172
2125699170,2cyclictest23313-21sed08:10:012
2125699170,2cyclictest22356-21processes11:55:172
2125699170,2cyclictest16849-21fschecks_time08:55:152
2125699170,2cyclictest1522-21lxd11:08:422
2125699170,2cyclictest1485-21snapd10:15:092
2125699170,2cyclictest1484-21snapd12:35:092
2125699170,1cyclictest4099-21H222:10:212
2125699170,1cyclictest4099-21H222:10:212
2125699170,16cyclictest8888-21chrt11:34:012
2125699170,16cyclictest5391-21expr08:35:142
2125699170,16cyclictest3844-21pzem_energy08:30:212
2125699170,16cyclictest31143-21fschecks_count09:20:152
2125699170,16cyclictest26857-21apt-get09:15:022
2125699170,16cyclictest20729-21expr10:00:132
2125699170,16cyclictest20454-21cron11:55:012
2125699170,16cyclictest17248-21chrt09:53:182
2125699170,16cyclictest16799-21df10:50:142
2125699170,16cyclictest14389-21chrt11:42:092
2125699170,16cyclictest13452-21/usr/sbin/munin08:50:102
21255991715,1cyclictest0-21swapper/111:50:091
21255991714,2cyclictest9748-21cpuspeed_turbos09:40:131
21255991714,2cyclictest8507-21expr12:30:131
21255991714,2cyclictest4373-21basename12:20:201
21255991714,2cyclictest399-20systemd-journal12:39:001
21255991714,2cyclictest3979-21H222:10:211
21255991714,2cyclictest28909-21apache_processe08:20:121
21255991714,2cyclictest1490-21snapd10:45:151
21255991713,3cyclictest399-20systemd-journal12:03:051
21255991713,3cyclictest3414-21master11:45:061
2125599171,15cyclictest19014-21nfsd408:00:171
2125599170,2cyclictest843-21systemd-network11:37:471
2125599170,2cyclictest6080-21sshd11:27:481
2125599170,2cyclictest3053-21systemd-logind12:06:521
2125599170,2cyclictest28826-21latency_hist10:15:001
2125599170,2cyclictest25933-21latency_hist08:15:001
2125599170,2cyclictest22088-21cut07:10:131
2125599170,2cyclictest15945-21lxd11:44:421
2125599170,2cyclictest1516-21lxd07:20:411
2125599170,1cyclictest0-21swapper/110:55:011
2125599170,16cyclictest8628-21cut08:40:151
2125599170,16cyclictest5141-21sed09:30:171
2125599170,16cyclictest5141-21grep07:35:181
2125599170,16cyclictest30592-21cpuspeed_turbos07:25:141
2125599170,16cyclictest2872-21systemd-logind10:28:511
2125599170,16cyclictest2166-21nfsd407:30:181
2125599170,16cyclictest2069-21systemd-udevd11:24:521
2125599170,16cyclictest11281-21sed07:45:211
21254991714,2cyclictest8442-21tr12:30:130
21254991714,2cyclictest534-21dpkg11:20:010
21254991714,2cyclictest4118-21tr11:25:130
21254991714,2cyclictest3987-21H222:10:210
21254991714,2cyclictest3351-21lxd12:28:410
21254991714,2cyclictest32385-21http_loadtime10:20:150
21254991714,2cyclictest24257-21fschecks_count12:00:160
21254991714,2cyclictest1483-21snapd09:34:550
21254991714,2cyclictest12595-21cat07:50:140
21254991714,2cyclictest10504-21munin-run08:45:010
2125499171,15cyclictest117852sleep007:48:220
2125499170,2cyclictest30476-21nfsd412:10:170
2125499170,2cyclictest24586-21grep08:10:170
2125499170,2cyclictest22470-21cat07:10:140
2125499170,2cyclictest13695-21ntp_offset11:40:190
2125499170,16cyclictest702-21munin-plugin-st07:30:000
2125499170,16cyclictest2232-21nfsd409:25:170
2125499170,16cyclictest20621-21ls09:00:210
2125499170,16cyclictest19072-21uname11:50:150
2125499170,16cyclictest18435-21grep08:00:130
2125499170,16cyclictest16700-21sed11:45:190
2125499170,16cyclictest1526-21lxd09:42:400
2125499170,16cyclictest12151-21nvmesmart_nvme008:45:190
2125499170,16cyclictest12151-21nvmesmart_nvme008:45:190
2125499170,16cyclictest10755-21awk11:35:180
2125499170,15cyclictest32739-21python311:20:000
21256991614,1cyclictest8252-21cpu12:30:122
21256991614,1cyclictest7868-21apache_processe10:35:122
21256991614,1cyclictest13501-21apache_accesses10:45:122
21256991614,1cyclictest0-21swapper/210:30:152
21256991614,1cyclictest0-21swapper/210:30:152
21256991614,1cyclictest0-21swapper/210:10:122
21256991614,1cyclictest0-21swapper/208:10:192
21256991614,1cyclictest0-21swapper/207:55:152
21256991614,1cyclictest0-21swapper/207:25:162
21256991613,2cyclictest25255-21cat07:15:152
21256991613,2cyclictest24301-21sed10:05:152
2125699160,1cyclictest0-21swapper/211:35:132
2125699160,15cyclictest27566-21nfsd412:05:172
2125699160,15cyclictest2474-21mailstats11:20:202
2125699160,15cyclictest0-21swapper/210:40:202
2125699160,15cyclictest0-21swapper/209:00:122
2125699160,15cyclictest0-21swapper/208:45:172
2125699160,15cyclictest0-21swapper/208:45:162
21255991614,1cyclictest7156-21cstates07:40:151
21255991614,1cyclictest1383-21expr09:25:131
21255991614,1cyclictest0-21swapper/111:10:111
21255991614,1cyclictest0-21swapper/110:05:131
21255991614,1cyclictest0-21swapper/110:00:141
21255991614,1cyclictest0-21swapper/109:55:171
21255991614,1cyclictest0-21swapper/109:35:191
21255991614,1cyclictest0-21swapper/108:57:051
21255991614,1cyclictest0-21swapper/108:25:141
21255991613,2cyclictest1856-21systemd-udevd12:16:511
21255991613,2cyclictest11040-21cat10:40:111
2125599161,14cyclictest0-21swapper/108:05:221
2125599160,1cyclictest0-21swapper/108:15:111
2125599160,15cyclictest602-21ntp_offset10:20:181
2125599160,15cyclictest30711-21sed10:15:201
2125599160,15cyclictest1856-21systemd-udevd08:46:521
2125599160,15cyclictest1856-21systemd-udevd08:46:511
2125599160,15cyclictest15294-21tr09:50:121
2125599160,15cyclictest0-21swapper/111:55:151
2125599160,15cyclictest0-21swapper/111:31:411
2125599160,15cyclictest0-21swapper/111:05:131
2125599160,15cyclictest0-21swapper/110:55:191
2125599160,15cyclictest0-21swapper/110:30:111
2125599160,15cyclictest0-21swapper/110:30:111
2125599160,15cyclictest0-21swapper/109:45:131
2125599160,15cyclictest0-21swapper/108:50:131
2125599160,15cyclictest0-21swapper/107:55:161
21254991614,1cyclictest6446-21cron07:40:010
21254991614,1cyclictest15916-21if_err_eno109:50:150
21254991614,1cyclictest0-21swapper/011:05:150
21254991614,1cyclictest0-21swapper/010:40:120
21254991614,1cyclictest0-21swapper/010:25:130
21254991614,1cyclictest0-21swapper/010:15:110
21254991614,1cyclictest0-21swapper/009:10:140
21254991614,1cyclictest0-21swapper/009:10:130
21254991614,1cyclictest0-21swapper/008:35:120
21254991614,1cyclictest0-21swapper/008:20:220
21254991613,2cyclictest2069-21systemd-udevd10:30:520
21254991613,2cyclictest2069-21systemd-udevd10:30:510
21254991613,2cyclictest1856-21systemd-udevd07:30:520
21254991613,2cyclictest0-21swapper/010:50:220
2125499160,2cyclictest8750-21cat07:40:220
2125499160,2cyclictest27900-21cat08:15:220
2125499160,2cyclictest1486-21snapd09:47:390
2125499160,1cyclictest0-21swapper/009:20:130
2125499160,1cyclictest0-21swapper/008:50:330
2125499160,15cyclictest29454-21sendmail-mta07:21:130
2125499160,15cyclictest27255-21missed_timers10:10:150
2125499160,15cyclictest17045-21chrt07:55:510
2125499160,15cyclictest0-21swapper/012:15:160
2125499160,15cyclictest0-21swapper/012:05:150
2125499160,15cyclictest0-21swapper/010:55:180
2125499160,15cyclictest0-21swapper/010:35:190
2125499160,15cyclictest0-21swapper/009:55:140
2125499160,15cyclictest0-21swapper/009:05:140
2125499160,15cyclictest0-21swapper/008:30:210
21255991513,1cyclictest0-21swapper/109:10:131
21255991513,1cyclictest0-21swapper/109:10:131
21254991513,1cyclictest2427-21/usr/sbin/munin12:20:210
2125499150,14cyclictest0-21swapper/007:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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