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2026-05-28 - 17:38
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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 Thu May 28, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189999250,20cyclictest10997-21turbostat11:15:012
189799230,5cyclictest0-21swapper/011:09:380
189799230,5cyclictest0-21swapper/007:22:090
189899220,4cyclictest25621-21nfsd412:35:181
189799215,14cyclictest0-21swapper/007:55:240
189999204,15cyclictest0-21swapper/208:14:082
1899991911,4cyclictest0-21swapper/212:29:502
189999190,18cyclictest0-21swapper/208:16:332
189899192,2cyclictest16551-21nfsd408:30:171
1898991913,3cyclictest0-21swapper/109:40:411
189899190,1cyclictest0-21swapper/111:43:351
189899190,18cyclictest0-21swapper/110:14:531
1897991917,1cyclictest9-21ksoftirqd/008:40:280
1897991914,4cyclictest0-21swapper/010:25:010
189799190,17cyclictest15945-21lxd08:22:410
1899991816,1cyclictest0-21swapper/208:46:192
1899991815,2cyclictest0-21swapper/210:45:132
1899991815,1cyclictest0-21swapper/211:30:002
1899991814,3cyclictest24989-21grep09:45:012
189999181,16cyclictest14545-21snapd07:15:272
189999180,17cyclictest4061-21pzem07:10:202
189999180,17cyclictest0-21swapper/211:49:592
189999180,16cyclictest399-20systemd-journal08:00:012
1898991816,1cyclictest0-21swapper/108:10:221
1898991813,3cyclictest0-21swapper/109:20:211
189899181,2cyclictest11931-21run-parts08:25:001
189899180,17cyclictest9381-21switchtime12:05:191
189899180,17cyclictest870-21systemd-logind08:36:521
189799182,15cyclictest0-21swapper/011:45:150
1897991816,1cyclictest23870-21taskset12:34:560
1897991814,3cyclictest455-21plymouthd10:45:120
1897991814,3cyclictest16703-21latency_hist11:25:010
189799181,16cyclictest9932-21seq12:08:290
189799180,3cyclictest15739-21awk12:20:000
189799180,16cyclictest27914-21apt-key11:45:000
1899991715,1cyclictest28-21ksoftirqd/208:31:552
1899991715,1cyclictest274972sleep211:44:052
1899991714,2cyclictest32331-21if_eno111:50:152
1899991714,2cyclictest29870-21sed09:50:212
1899991714,2cyclictest21221-21expr08:40:132
1899991714,2cyclictest2069-21systemd-udevd10:08:522
1899991714,2cyclictest15201-21awk07:30:182
1899991714,2cyclictest12900-21expr08:25:132
1899991714,2cyclictest1-21systemd11:18:522
1899991714,2cyclictest1085-21gdbus07:35:192
189999171,15cyclictest31637-21nfsd408:00:192
189999170,2cyclictest6831-21nfsd409:10:172
189999170,2cyclictest6732-21latency11:05:162
189999170,2cyclictest3985-21H222:10:212
189999170,2cyclictest3983-21H222:10:212
189999170,2cyclictest26725-21open_files09:45:202
189999170,2cyclictest12653-21chrt12:11:122
189999170,1cyclictest0-21swapper/212:21:562
189999170,16cyclictest9557-21nfsd409:15:182
189999170,16cyclictest426-21systemd-udevd10:21:522
189999170,16cyclictest3989-21H222:10:212
189999170,16cyclictest32394-21sed09:55:192
189999170,16cyclictest30307-21idleruntime10:50:142
189999170,16cyclictest22215-21/usr/sbin/munin07:45:152
189999170,16cyclictest14506-21snapd10:10:272
189999170,16cyclictest13987-21grep09:25:122
189999170,16cyclictest13487-21wc09:25:002
189999170,16cyclictest12000-21munin-run08:25:012
189999170,16cyclictest11151-21nfsd410:15:182
189999170,16cyclictest1109-21/usr/sbin/munin10:00:142
189999170,16cyclictest1035-21thermald09:05:202
189899172,1cyclictest232342chrt10:36:271
189899172,1cyclictest21-21ksoftirqd/112:05:011
1898991716,1cyclictest21-21ksoftirqd/107:13:501
1898991714,2cyclictest8678-21apache_volume11:10:121
1898991714,2cyclictest7606-21timerandwakeup11:05:211
1898991714,2cyclictest3991-21H222:10:211
1898991714,2cyclictest3989-21H222:10:211
1898991714,2cyclictest30955-21ntp_states10:50:171
1898991714,2cyclictest27979-21systemctl08:50:201
1898991714,2cyclictest21845-21basename07:45:011
1898991714,2cyclictest19508-21latency_hist11:30:011
1898991714,2cyclictest15275-21sed10:25:011
1898991714,2cyclictest1-21systemd07:39:001
1898991713,3cyclictest0-21swapper/108:45:151
189899171,2cyclictest14813-21/usr/sbin/munin12:15:181
189899171,15cyclictest6960-21cpuspeed_turbos08:15:121
189899171,15cyclictest25031-21cat07:50:131
189899171,15cyclictest12701-21cpuspeed_turbos08:25:141
189899171,15cyclictest0-21swapper/107:55:171
189899170,2cyclictest3989-21H222:10:211
189899170,2cyclictest30552-21smartctl08:55:191
189899170,2cyclictest28247-21ntpq10:45:181
189899170,2cyclictest20474-21python310:35:011
189899170,2cyclictest19299-21cstates12:25:141
189899170,2cyclictest16401-21cat12:20:131
189899170,2cyclictest14545-21snapd10:25:281
189899170,2cyclictest13557-21anvil11:17:581
189899170,2cyclictest1348-21lxd11:58:431
189899170,2cyclictest10909-21https07:25:021
189899170,16cyclictest9337-21latency09:15:171
189899170,16cyclictest8104-21ls07:20:141
189899170,16cyclictest738-21awk09:00:181
189899170,16cyclictest6503-21awk07:15:181
189899170,16cyclictest3976-21H222:10:211
189899170,16cyclictest31300-21if_lxdbr008:00:171
189899170,16cyclictest30720-21apt-get11:50:001
189899170,16cyclictest30450-21latency_hist09:55:011
189899170,16cyclictest28813-21expr11:45:121
189899170,16cyclictest22718-21expr07:45:141
189899170,16cyclictest17661-21smartctl09:30:151
189899170,16cyclictest15125-21awk07:30:181
189899170,16cyclictest1256-21ls08:05:131
189899170,16cyclictest11545-21kernelversion12:10:151
189899170,16cyclictest11373-21seq10:15:201
189899170,16cyclictest0-21swapper/110:55:181
189799172,14cyclictest0-21swapper/008:55:550
1897991716,1cyclictest9-21ksoftirqd/011:55:370
1897991715,1cyclictest98252sleep010:15:040
1897991715,1cyclictest584-21missed_timers09:00:170
1897991715,1cyclictest0-21swapper/010:35:010
1897991714,2cyclictest9470-21basename10:15:010
1897991714,2cyclictest9226-21cut09:15:170
1897991714,2cyclictest3780-21latency_hist08:10:010
1897991714,2cyclictest3418-21expr11:00:130
1897991714,2cyclictest29965-21cstates10:50:130
1897991714,2cyclictest25285-21/usr/sbin/munin09:45:160
1897991714,2cyclictest22498-21cat07:45:140
1897991714,2cyclictest20851-21latency_hist08:40:010
1897991714,2cyclictest19778-21cstates07:40:130
1897991714,2cyclictest16194-21munin-run07:35:010
1897991714,2cyclictest13030-21cstates08:25:140
189799171,1cyclictest12520-21pluginstate09:20:210
189799170,2cyclictest5796-21expr09:10:110
189799170,2cyclictest3985-21H222:10:210
189799170,2cyclictest32443-21sed09:55:200
189799170,2cyclictest24838-21cstates12:35:140
189799170,2cyclictest22226-21date09:40:010
189799170,2cyclictest18890-21phpquery07:39:010
189799170,2cyclictest14550-21snapd10:42:580
189799170,2cyclictest12969-21turbostat12:14:590
189799170,2cyclictest10151-21lxd12:22:430
189799170,16cyclictest7209-21expr08:15:130
189799170,16cyclictest2660-21/usr/sbin/munin09:05:130
189799170,16cyclictest23196-21fschecks_count09:40:150
189799170,16cyclictest22765-21ls11:35:120
189799170,16cyclictest21090-21ps11:30:190
189799170,16cyclictest18254-21nfsd411:25:170
189799170,16cyclictest15883-21bounce09:26:510
189799170,16cyclictest15812-21expr10:25:110
1899991614,1cyclictest25155-21tr07:50:122
1899991614,1cyclictest20399-21apt-get10:35:012
1899991614,1cyclictest19583-21sort07:40:132
1899991614,1cyclictest0-21swapper/212:05:172
1899991614,1cyclictest0-21swapper/212:00:032
1899991614,1cyclictest0-21swapper/211:00:002
1899991614,1cyclictest0-21swapper/210:25:122
1899991614,1cyclictest0-21swapper/209:35:122
1899991614,1cyclictest0-21swapper/209:30:142
1899991614,1cyclictest0-21swapper/209:00:122
1899991614,1cyclictest0-21swapper/208:55:152
1899991614,1cyclictest0-21swapper/207:20:172
1899991613,2cyclictest21515-21sed11:30:202
189999160,1cyclictest0-21swapper/210:40:112
189999160,1cyclictest0-21swapper/208:50:122
189999160,1cyclictest0-21swapper/208:05:142
189999160,15cyclictest4468-21grep11:00:182
189999160,15cyclictest24483-21expr12:35:122
189999160,15cyclictest18177-21cpuspeed_turbos10:30:122
189999160,15cyclictest0-21swapper/212:30:122
189999160,15cyclictest0-21swapper/212:15:102
189999160,15cyclictest0-21swapper/211:20:162
189999160,15cyclictest0-21swapper/207:25:152
1898991614,1cyclictest1712-21expr10:00:121
1898991614,1cyclictest0-21swapper/111:00:151
1898991613,2cyclictest32135-21ntp_offset09:55:181
1898991613,2cyclictest13780-21/usr/sbin/munin09:25:121
189899160,2cyclictest21045-21/usr/sbin/munin09:35:171
189899160,1cyclictest0-21swapper/109:10:121
189899160,15cyclictest3333-21/usr/sbin/munin09:05:141
189899160,15cyclictest25562-21awk10:40:181
189899160,15cyclictest22905-21awk12:30:161
189899160,15cyclictest0-21swapper/111:20:121
189899160,15cyclictest0-21swapper/108:40:131
1897991614,1cyclictest0-21swapper/012:25:200
1897991614,1cyclictest0-21swapper/009:50:160
1897991614,1cyclictest0-21swapper/008:45:210
1897991614,1cyclictest0-21swapper/008:30:130
1897991614,1cyclictest0-21swapper/007:15:140
1897991613,2cyclictest11043-21rm07:25:010
189799160,2cyclictest4530-21cat08:10:130
189799160,2cyclictest11661-21cstates11:15:140
189799160,1cyclictest0-21swapper/012:00:130
189799160,15cyclictest4255-21apache_volume10:05:100
189799160,15cyclictest31338-21gpg-connect-age11:50:010
189799160,15cyclictest18421-21ls10:30:140
189799160,15cyclictest0-21swapper/011:10:130
189799160,15cyclictest0-21swapper/010:55:150
189799160,15cyclictest0-21swapper/010:00:150
189799160,15cyclictest0-21swapper/009:30:010
189799160,15cyclictest0-21swapper/008:50:180
189799160,15cyclictest0-21swapper/008:00:160
189799160,15cyclictest0-21swapper/007:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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