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2026-08-19 - 19:17
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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 Wed Aug 19, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10660992615,11cyclictest0-21swapper/209:10:172
10660992213,5cyclictest0-21swapper/210:50:122
1065699220,18cyclictest0-21swapper/111:41:331
1066099217,13cyclictest0-21swapper/208:15:502
1066099213,17cyclictest0-21swapper/209:27:112
1066099210,20cyclictest870-21systemd-logind08:30:212
10660992020,0cyclictest0-21swapper/210:00:172
10660992017,1cyclictest0-21swapper/211:33:582
10660992016,3cyclictest0-21swapper/212:37:332
10660992016,3cyclictest0-21swapper/209:03:562
10660992014,5cyclictest0-21swapper/209:39:122
10660992014,5cyclictest0-21swapper/209:39:122
10660992014,4cyclictest0-21swapper/208:22:512
10651992020,0cyclictest0-21swapper/011:00:140
10651992014,4cyclictest0-21swapper/009:22:530
10660991917,1cyclictest1717-21sed08:45:232
10660991917,1cyclictest0-21swapper/210:40:012
10660991917,1cyclictest0-21swapper/209:15:212
10660991916,2cyclictest17137-21mktemp12:02:142
10660991916,1cyclictest0-21swapper/208:54:592
10660991915,3cyclictest0-21swapper/209:45:012
1066099190,1cyclictest0-21swapper/207:54:212
1066099190,16cyclictest3991-21H222:10:212
10656991916,2cyclictest24346-21nfsd410:20:191
10656991914,3cyclictest399-20systemd-journal08:40:001
1065699190,18cyclictest20699-21apache208:25:011
1065699190,16cyclictest3983-21H222:10:211
1065199192,16cyclictest0-21swapper/012:24:160
1065199192,16cyclictest0-21swapper/011:10:150
10651991919,0cyclictest0-21swapper/009:54:290
10651991917,1cyclictest0-21swapper/011:18:100
1065199190,1cyclictest0-21swapper/009:37:100
1065199190,1cyclictest0-21swapper/009:37:100
1065199190,1cyclictest0-21swapper/009:17:560
1065199190,18cyclictest426-21systemd-udevd11:28:510
1066099182,15cyclictest29984-21ls08:40:132
1066099182,15cyclictest286062sleep208:36:042
1066099182,15cyclictest21809-21date07:30:002
10660991816,1cyclictest3647-21grep07:55:142
10660991816,1cyclictest13642-21/usr/sbin/munin07:15:142
10660991816,1cyclictest0-21swapper/209:50:132
10660991815,3cyclictest0-21swapper/209:21:422
10660991815,2cyclictest9844-21fschecks_count11:50:132
10660991815,2cyclictest3338-21cstates09:45:162
10660991815,2cyclictest3298-21expr10:40:182
10660991815,2cyclictest29130-21cat12:25:142
10660991815,2cyclictest12506-21run-parts07:10:212
10660991814,3cyclictest12775-21cut09:05:192
1066099181,16cyclictest6945-21grep08:55:182
1066099181,16cyclictest5728-21basename10:45:172
1066099181,16cyclictest24079-21chrt07:33:412
1066099181,16cyclictest11099-21date10:00:012
1066099180,2cyclictest26666-21python311:25:012
1066099180,2cyclictest23888-21idleruntime10:20:162
1066099180,2cyclictest23278-21apt.systemd.dai08:28:312
1066099180,17cyclictest10249-21grep08:05:152
1066099180,17cyclictest0-21swapper/212:30:132
1066099180,16cyclictest3989-21H222:10:212
1065699182,1cyclictest4099-21H222:10:211
1065699182,1cyclictest0-21swapper/108:26:381
1065699182,15cyclictest29517-21expr12:25:141
10656991816,1cyclictest0-21swapper/112:20:091
1065699180,2cyclictest3989-21H222:10:211
1065699180,17cyclictest31454-21munin-run09:40:011
1065699180,17cyclictest31454-21munin-run09:40:001
1065699180,16cyclictest18781-21apache_accesses11:10:121
1065199182,15cyclictest551-21nfsd412:30:190
10651991816,1cyclictest0-21swapper/008:51:440
10651991815,2cyclictest22234-21ntp_kernel_pll_12:10:190
10651991814,3cyclictest426-21systemd-udevd07:50:510
10651991812,5cyclictest426-21systemd-udevd10:16:510
1065199180,2cyclictest9-21ksoftirqd/008:15:140
1065199180,2cyclictest4035-21H222:10:210
1065199180,15cyclictest3983-21H222:10:210
10660991715,1cyclictest0-21swapper/208:10:142
10660991714,2cyclictest7365-21expr08:00:142
10660991714,2cyclictest3998-21cat11:40:142
10660991714,2cyclictest30738-21expr07:45:132
10660991714,2cyclictest27316-21apt-config11:25:012
10660991714,2cyclictest17603-21cstates10:10:132
10660991714,2cyclictest17430-21sed11:05:192
1066099171,1cyclictest0-21swapper/211:35:142
1066099170,2cyclictest27571-21sed10:25:202
1066099170,2cyclictest18473-21cstates12:05:142
1066099170,2cyclictest16983-21cstates07:20:152
1066099170,2cyclictest15724-21latency_hist11:05:012
1066099170,1cyclictest0-21swapper/212:20:132
1066099170,1cyclictest0-21swapper/210:30:162
1066099170,16cyclictest25677-21gpgv09:30:022
1066099170,16cyclictest25013-21cstates07:35:152
1066099170,16cyclictest21988-21cstates11:15:142
1066099170,16cyclictest19484-21perl11:10:142
1066099170,16cyclictest14208-21appstreamcli10:05:002
1066099170,16cyclictest12520-21expr11:55:142
1066099170,16cyclictest10917-21sshd10:55:162
1066099170,16cyclictest0-21swapper/210:15:132
10656991715,1cyclictest3985-21H222:10:211
10656991715,1cyclictest0-21swapper/110:15:071
10656991714,2cyclictest85222sleep111:46:251
10656991714,2cyclictest5714-21apache_volume08:55:131
10656991714,2cyclictest4099-21H222:10:211
10656991714,2cyclictest4025-21changes_open22:10:211
10656991714,2cyclictest3991-21H222:10:211
10656991714,2cyclictest3976-21H222:10:211
10656991714,2cyclictest393-21apache_processe11:35:121
10656991714,2cyclictest32257-21chrt07:46:151
10656991714,2cyclictest32009-21cpuspeed_turbos12:30:141
10656991714,2cyclictest31943-21timerwakeupswit11:30:211
10656991714,2cyclictest23578-21apache_accesses12:15:121
10656991714,2cyclictest2283-21date08:50:001
10656991714,2cyclictest14550-21snapd10:50:561
10656991714,2cyclictest13160-21apache_volume11:00:131
10656991714,2cyclictest11736-21expr10:00:141
10656991714,2cyclictest0-21swapper/110:56:401
10656991713,2cyclictest31454-21cpuspeed_turbos10:35:131
1065699171,15cyclictest21-21ksoftirqd/107:30:301
1065699171,15cyclictest13916-21chrt11:55:391
1065699170,2cyclictest4099-21H222:10:211
1065699170,2cyclictest4035-21H222:10:211
1065699170,2cyclictest3983-21H222:10:211
1065699170,2cyclictest3981-21H222:10:211
1065699170,2cyclictest3976-21H222:10:211
1065699170,2cyclictest29095-21expr10:30:131
1065699170,2cyclictest17210-21apt-key12:02:131
1065699170,2cyclictest13714-21nfsd408:10:171
1065699170,2cyclictest1348-21lxd11:06:431
1065699170,2cyclictest0-21swapper/110:05:011
1065699170,16cyclictest7201-21expr08:00:151
1065699170,16cyclictest4035-21H222:10:211
1065699170,16cyclictest3644-21cpu07:55:141
1065699170,16cyclictest21502-21/usr/sbin/munin09:20:211
1065699170,16cyclictest19138-21/usr/sbin/munin07:25:121
1065699170,16cyclictest1856-21systemd-udevd11:24:511
1065699170,16cyclictest1521-21lxd09:26:421
1065699170,16cyclictest15150-21fschecks_time09:10:161
1065699170,15cyclictest3985-21H222:10:211
1065199172,1cyclictest0-21swapper/010:32:450
10651991716,1cyclictest9-21ksoftirqd/009:14:330
10651991716,0cyclictest0-21swapper/009:49:560
10651991715,1cyclictest4099-21H222:10:210
10651991715,1cyclictest0-21swapper/011:31:460
10651991715,1cyclictest0-21swapper/010:25:130
10651991714,2cyclictest863-21avahi-daemon08:30:200
10651991714,2cyclictest6284-21expr08:55:150
10651991714,2cyclictest3985-21H222:10:210
10651991714,2cyclictest25897-21switchtime11:20:210
10651991714,2cyclictest15576-21nfsd410:05:190
10651991712,2cyclictest3976-21H222:10:210
1065199171,15cyclictest0-21swapper/010:37:240
1065199170,2cyclictest8699-21gpgv09:00:030
1065199170,2cyclictest5283-21processes11:40:220
1065199170,2cyclictest3983-21H222:10:210
1065199170,2cyclictest3976-21H222:10:210
1065199170,2cyclictest25834-21apache_accesses09:30:110
1065199170,2cyclictest22702-21apache_accesses09:25:120
1065199170,2cyclictest19150-21grep12:05:160
1065199170,2cyclictest14496-21snapd11:55:570
1065199170,2cyclictest11592-21apache_accesses09:05:120
1065199170,1cyclictest3983-21H222:10:210
1065199170,1cyclictest0-21swapper/012:25:130
1065199170,1cyclictest0-21swapper/008:10:190
1065199170,16cyclictest8884-21expr09:55:150
1065199170,16cyclictest7676-21grep11:45:150
1065199170,16cyclictest4920-21netstat07:55:170
1065199170,16cyclictest4660-21apache210:50:110
1065199170,16cyclictest3991-21H222:10:210
1065199170,16cyclictest3985-21H222:10:210
1065199170,16cyclictest395-21apache_volume11:35:130
1065199170,16cyclictest30864-21nfsd408:40:180
1065199170,16cyclictest28776-21sshd08:38:240
1065199170,16cyclictest2295-21perf09:45:000
1065199170,16cyclictest2249-21turbostat08:50:000
1065199170,16cyclictest21446-21cron07:30:010
1065199170,16cyclictest18732-21awk08:20:160
1065199170,16cyclictest16265-21latency_hist07:20:020
1065199170,16cyclictest11822-21cat11:55:000
1065199170,15cyclictest3985-21H222:10:210
1066099160,15cyclictest0-21swapper/207:40:132
10656991614,1cyclictest0-21swapper/109:55:131
10656991614,1cyclictest0-21swapper/109:50:121
10656991613,2cyclictest21517-21apache_accesses11:15:121
1065699160,2cyclictest2140-21expr10:40:141
1065699160,1cyclictest18537-21grep09:15:191
1065699160,15cyclictest8618-21apt-config09:00:011
1065699160,15cyclictest4035-21H222:10:211
1065699160,15cyclictest29515-21apache_volume08:40:121
1065699160,15cyclictest2718-21apt-get09:45:151
1065699160,15cyclictest0-21swapper/109:40:011
1065699160,15cyclictest0-21swapper/108:32:271
1065699160,15cyclictest0-21swapper/107:50:131
1065699160,15cyclictest0-21swapper/107:15:131
10651991615,1cyclictest0-21swapper/007:41:180
10651991614,1cyclictest0-21swapper/011:05:140
10651991614,1cyclictest0-21swapper/007:25:170
1065199161,15cyclictest0-21swapper/010:59:120
1065199160,2cyclictest11752-21if_enp1s007:10:160
1065199160,15cyclictest3546-21sed12:35:170
1065199160,15cyclictest23559-21/usr/sbin/munin12:15:220
1065199160,15cyclictest12082-21/usr/sbin/munin10:00:170
1065699150,1cyclictest0-21swapper/112:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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