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2026-05-01 - 17:31
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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 Fri May 01, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2182399236,13cyclictest0-21swapper/111:45:061
2182299230,9cyclictest0-21swapper/011:30:040
2182299230,20cyclictest0-21swapper/011:40:130
2182499220,21cyclictest843-21systemd-network12:12:262
2182399224,9cyclictest0-21swapper/111:15:041
2182299220,4cyclictest0-21swapper/007:27:380
2182299220,18cyclictest0-21swapper/012:08:100
2182299213,3cyclictest2850-21gmain07:49:100
2182299210,3cyclictest0-21swapper/010:24:460
21824992016,3cyclictest0-21swapper/208:52:392
2182399204,15cyclictest0-21swapper/110:36:081
21822992016,3cyclictest0-21swapper/008:43:070
21824991919,0cyclictest0-21swapper/211:21:102
2182499191,14cyclictest455-21plymouthd08:50:002
21823991915,2cyclictest20142-21nfsd411:50:161
21822991912,3cyclictest0-21swapper/010:58:100
2182299190,5cyclictest0-21swapper/009:14:380
21824991816,1cyclictest18474-21nfsd410:50:142
21824991816,1cyclictest0-21swapper/208:00:192
21824991815,2cyclictest31057-21cron11:15:002
21824991815,2cyclictest3058-21rs:main2
21824991814,3cyclictest0-21swapper/211:01:162
2182499180,3cyclictest2007-21systemd-journal11:32:432
2182399182,15cyclictest0-21swapper/109:34:421
21823991815,2cyclictest1721-21cut09:25:001
21823991815,1cyclictest0-21swapper/112:05:001
21823991814,3cyclictest32085-21ls07:25:211
21823991814,3cyclictest0-21swapper/111:23:421
21823991813,4cyclictest870-21systemd-logind10:48:511
2182399181,2cyclictest2872-21systemd-logind12:06:511
21823991811,3cyclictest7979-21wc09:35:141
2182399180,3cyclictest6156-21sed07:39:001
2182299182,15cyclictest74462sleep008:37:260
21822991815,2cyclictest14824-21smartctl09:45:200
21822991814,2cyclictest0-21swapper/009:00:010
2182299180,3cyclictest15931-21awk10:45:170
2182299180,17cyclictest0-21swapper/012:20:170
21824991715,1cyclictest0-21swapper/208:10:112
21824991715,1cyclictest0-21swapper/207:59:362
21824991714,2cyclictest9428-21/usr/sbin/munin07:45:132
21824991714,2cyclictest7924-21df12:25:142
21824991714,2cyclictest32607-21missed_timers09:20:152
21824991714,2cyclictest27665-21apt-config12:05:022
21824991714,2cyclictest26980-21munin-run10:10:012
21824991714,2cyclictest26007-21/usr/sbin/munin09:10:162
21824991714,2cyclictest24351-21nfsd409:05:182
21824991714,2cyclictest22616-21latency10:00:152
21824991714,2cyclictest20722-21timerwakeupswit09:55:192
21824991714,2cyclictest20576-21df_inode10:55:132
21824991714,2cyclictest18411-21wc11:49:592
21824991714,2cyclictest1656-21nfsd410:20:182
21824991714,2cyclictest14836-21processes11:40:192
2182499171,15cyclictest3450-21gsd-color11:35:162
2182499171,15cyclictest2729-21vmstat07:30:222
2182499170,2cyclictest5181-21tr07:35:162
2182499170,2cyclictest4582-21awk09:30:012
2182499170,2cyclictest31457-21munin-run08:25:012
2182499170,2cyclictest26005-21needreboot07:15:182
2182499170,2cyclictest22192-21ls09:00:212
2182499170,2cyclictest1348-21lxd08:32:412
2182499170,16cyclictest9819-21systemctl08:40:202
2182499170,16cyclictest9221-21pzem_current09:35:192
2182499170,16cyclictest6981-21switchtime08:35:212
2182499170,16cyclictest6498-21cut11:25:182
2182499170,16cyclictest5907-21kernelversion09:30:172
2182499170,16cyclictest399-20systemd-journal10:45:012
2182499170,16cyclictest22949-21if_enp1s007:10:162
2182499170,16cyclictest22893-21awk08:10:002
2182499170,16cyclictest21135-21perf11:55:002
2182499170,16cyclictest17175-21munin-plugin-st10:50:022
2182499170,16cyclictest1488-21systemctl11:20:002
2182499170,16cyclictest0-21swapper/210:31:452
21823991715,1cyclictest3987-21H222:10:211
21823991714,2cyclictest32410-21df08:25:151
21823991714,2cyclictest25859-21pzem_energy10:05:201
21823991714,2cyclictest21303-21kernelversion08:05:171
21823991714,2cyclictest19302-21switchtime08:00:201
21823991714,2cyclictest17397-21tr08:55:131
21823991714,2cyclictest15731-21perf09:50:001
21823991714,2cyclictest15266-21cron12:40:001
2182399171,0cyclictest0-21swapper/109:25:371
2182399170,2cyclictest3976-21H222:10:211
2182399170,2cyclictest3053-21systemd-logind11:10:511
2182399170,2cyclictest29476-21sed07:20:191
2182399170,2cyclictest11834-21ntp_states11:35:181
2182399170,16cyclictest426-21systemd-udevd07:44:521
2182399170,16cyclictest426-21systemd-udevd07:10:531
2182399170,16cyclictest3989-21H222:10:211
2182399170,16cyclictest3981-21H222:10:211
2182399170,16cyclictest28359-21perf11:10:001
2182399170,16cyclictest27866-21fschecks_count10:10:141
2182399170,16cyclictest26744-21ls08:15:161
2182399170,16cyclictest26737-21ls07:15:221
2182399170,16cyclictest23958-21date12:00:011
2182399170,16cyclictest23958-21date12:00:001
2182399170,16cyclictest1515-21lxd09:18:421
2182399170,16cyclictest14545-21snapd07:31:591
2182399170,16cyclictest0-21swapper/108:20:161
21822991714,2cyclictest465-21ntpq11:15:200
21822991714,2cyclictest3985-21H222:10:210
21822991714,2cyclictest24033-21idleruntime08:10:160
21822991714,2cyclictest18412-21perf11:50:000
21822991714,2cyclictest1100-21snmpd11:20:200
21822991714,2cyclictest0-21swapper/009:20:170
21822991713,3cyclictest13738-21sort08:50:010
2182299171,15cyclictest4833-21latency07:35:160
2182299171,15cyclictest4828-21ntp_kernel_pll_10:25:170
2182299170,2cyclictest9293-21cstates10:35:120
2182299170,2cyclictest684-21python312:15:010
2182299170,2cyclictest29786-21sed09:15:160
2182299170,2cyclictest29148-21expr11:10:130
2182299170,2cyclictest25252-21expr12:00:130
2182299170,2cyclictest21366-21munin-plugin-st11:55:000
2182299170,2cyclictest21220-21cat08:05:160
2182299170,2cyclictest14495-21snapd11:04:270
2182299170,1cyclictest0-21swapper/009:35:160
2182299170,16cyclictest5671-21fschecks_time11:25:130
2182299170,16cyclictest3812-21grep08:30:160
2182299170,16cyclictest31320-21fschecks_count12:10:130
2182299170,16cyclictest28817-21wc08:20:130
2182299170,16cyclictest25021-21fschecks_time10:05:140
2182299170,16cyclictest2401-21expr09:25:120
2182299170,16cyclictest23865-21systemctl12:00:010
2182299170,16cyclictest23865-21systemctl12:00:000
2182299170,16cyclictest21566-21grep09:00:190
2182299170,16cyclictest19728-21cut10:55:000
2182299170,16cyclictest15186-21fschecks_time08:50:140
2182299170,16cyclictest14496-21snapd09:54:400
2182299170,16cyclictest1344-21/usr/sbin/munin07:30:140
2182299170,16cyclictest10151-21lxd08:18:410
21824991614,1cyclictest4500-21wc10:25:162
21824991614,1cyclictest30793-21expr07:25:152
21824991614,1cyclictest275822chrt07:20:082
21824991614,1cyclictest0-21swapper/212:15:132
21824991614,1cyclictest0-21swapper/212:04:002
21824991614,1cyclictest0-21swapper/211:05:012
21824991614,1cyclictest0-21swapper/209:15:132
21824991614,1cyclictest0-21swapper/208:55:132
21824991614,1cyclictest0-21swapper/208:25:142
21824991614,1cyclictest0-21swapper/208:15:202
21824991614,1cyclictest0-21swapper/207:50:162
21824991614,1cyclictest0-21swapper/207:40:132
2182499160,1cyclictest4174-21cron12:24:542
2182499160,1cyclictest0-21swapper/212:30:132
2182499160,1cyclictest0-21swapper/210:15:162
2182499160,1cyclictest0-21swapper/210:10:102
2182499160,15cyclictest14105-21/usr/sbin/munin09:45:172
2182499160,15cyclictest13173-21expr12:35:122
2182499160,15cyclictest0-21swapper/211:55:192
2182499160,15cyclictest0-21swapper/211:55:192
2182499160,15cyclictest0-21swapper/209:50:152
21823991615,1cyclictest0-21swapper/109:40:191
21823991614,1cyclictest7481-21cat11:30:001
21823991614,1cyclictest23926-21/usr/sbin/munin08:10:141
21823991614,1cyclictest19497-21fschecks_count09:55:131
21823991614,1cyclictest0-21swapper/111:00:211
21823991614,1cyclictest0-21swapper/109:00:231
21823991614,1cyclictest0-21swapper/108:35:131
21823991614,1cyclictest0-21swapper/107:50:491
21823991613,2cyclictest3985-21H222:10:211
21823991613,2cyclictest22814-21nfsd410:00:161
2182399160,2cyclictest399-20systemd-journal10:30:001
2182399160,2cyclictest30518-21df10:15:131
2182399160,2cyclictest23143-21apache_processe09:05:121
2182399160,2cyclictest12594-21nfsd408:45:181
2182399160,1cyclictest0-21swapper/112:25:201
2182399160,1cyclictest0-21swapper/108:30:151
2182399160,15cyclictest4603-21/usr/sbin/munin12:20:141
2182399160,15cyclictest28673-21date09:15:001
2182399160,15cyclictest21819-21timerwakeupswit10:55:201
2182399160,15cyclictest11782-21/usr/sbin/munin10:40:161
2182399160,15cyclictest0-21swapper/112:10:171
2182399160,15cyclictest0-21swapper/111:30:121
2182399160,15cyclictest0-21swapper/110:20:111
2182399160,15cyclictest0-21swapper/108:40:161
21822991614,1cyclictest3450-21gsd-color07:10:210
21822991614,1cyclictest0-21swapper/012:25:150
21822991614,1cyclictest0-21swapper/011:05:030
21822991614,1cyclictest0-21swapper/009:55:130
21822991614,1cyclictest0-21swapper/007:50:180
2182299160,1cyclictest0-21swapper/010:30:180
2182299160,1cyclictest0-21swapper/008:25:150
2182299160,15cyclictest7016-21cat07:40:120
2182299160,15cyclictest5803-21awk09:30:150
2182299160,15cyclictest4035-21H222:10:210
2182299160,15cyclictest3441-21packagekitd08:00:130
2182299160,15cyclictest21846-21tr10:00:110
2182299160,15cyclictest12480-21ls12:35:000
2182299160,15cyclictest11956-21cut10:40:120
2182299160,15cyclictest10783-21expr09:40:130
2182299160,15cyclictest0-21swapper/011:35:160
2182299160,15cyclictest0-21swapper/010:15:160
2182299160,15cyclictest0-21swapper/007:55:310
2182299160,15cyclictest0-21swapper/007:20:140
2182299160,15cyclictest0-21swapper/007:15:140
2182499150,14cyclictest0-21swapper/209:40:132
21823991514,1cyclictest0-21swapper/107:47:341
21823991514,0cyclictest0-21swapper/112:31:311
2182399150,14cyclictest0-21swapper/112:15:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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