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2026-06-02 - 17:01
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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 100 highest latencies:
System rackeslot2.osadl.org (updated Tue Jun 02, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
400148422210,2sleep30-21swapper/309:25:023
401828021010,2sleep30-21swapper/309:39:423
39852962510,1sleep00-21swapper/009:14:530
39866382480,1sleep00-21swapper/009:16:300
41162132390,1sleep04116215-21ssh10:43:360
41571012300,2sleep20-21swapper/211:09:472
3825556992719,3cyclictest0-21swapper/111:25:021
3825561992618,4cyclictest0-21swapper/209:34:402
382554899261,7cyclictest4008801-21true09:30:000
3825561992519,2cyclictest0-21swapper/212:29:432
3825548992519,5cyclictest4170437-21ps11:19:470
3825548992514,10cyclictest4140027-21idleruntime10:59:450
40408832240,2sleep04040823-21ssh09:54:420
3825548992418,5cyclictest4182888-21ssh11:25:010
382556199233,8cyclictest0-21swapper/209:44:412
382554899233,7cyclictest3941041-21munin-run08:40:010
3825548992319,3cyclictest3897193-21munin-run08:04:590
3825548992318,4cyclictest0-21swapper/010:50:020
3825548992310,8cyclictest4023829-21latency_hist09:40:020
382554899230,3cyclictest57560-21ssh12:10:330
3825561992214,3cyclictest0-21swapper/211:29:412
382554899229,7cyclictest56703-21grep12:09:530
382554899228,9cyclictest16-21ksoftirqd/011:15:010
382554899228,9cyclictest0-21swapper/011:29:560
382554899225,3cyclictest501rcuop/210:15:530
382554899225,3cyclictest501rcuop/210:15:530
382554899222,3cyclictest501rcuop/212:35:470
3825548992216,5cyclictest74722-21grep12:24:420
382554899221,3cyclictest501rcuop/211:44:270
3825548992211,7cyclictest83850-21kthreadcore12:29:510
3825561992114,3cyclictest0-21swapper/209:29:412
382555699210,20cyclictest3928403-21idleruntime-cro08:30:001
382554899219,6cyclictest501rcuop/210:50:520
382554899218,6cyclictest501rcuop/211:37:260
382554899218,6cyclictest501rcuop/209:58:050
382554899217,9cyclictest16-21ksoftirqd/012:00:000
3825548992116,4cyclictest3840947-21packagekitd07:20:010
3825548992111,9cyclictest4149684-21kthreadcore11:04:520
382554899211,15cyclictest3947804-21/usr/sbin/munin08:49:530
383433398200,3rtkit-daemon3851702-21mta-sts-daemon09:01:440
3825556992018,1cyclictest0-21swapper/110:10:021
3825556992017,2cyclictest26979-21apt-config11:50:011
3825556992014,2cyclictest134050irq/121-eno109:14:551
382554899208,8cyclictest0-21swapper/010:09:470
382554899208,7cyclictest0-21swapper/011:09:460
382554899207,8cyclictest0-21swapper/011:35:010
382554899206,11cyclictest501rcuop/209:47:270
382554899205,3cyclictest501rcuop/210:25:470
382554899205,3cyclictest501rcuop/210:01:310
382554899203,2cyclictest191rcu_preempt08:24:440
382554899203,16cyclictest4114750-21wc10:40:000
382554899202,3cyclictest3903608-21unin-run08:10:010
382554899201,6cyclictest4000960-21latency_hist09:25:020
3825548992015,4cyclictest1996-21runrttasks09:31:090
3825548992015,4cyclictest0-21swapper/011:50:010
3825548992014,4cyclictest0-21swapper/010:35:020
383433398190,2rtkit-daemon3834332-21rtkit-daemon11:57:461
382556199197,7cyclictest0-21swapper/207:10:012
3825561991911,4cyclictest0-21swapper/210:59:402
382554899196,6cyclictest501rcuop/210:13:520
382554899194,3cyclictest501rcuop/207:46:230
3825548991914,4cyclictest0-21swapper/007:15:010
382554899191,3cyclictest191rcu_preempt07:30:010
3825548991912,4cyclictest601rcuop/307:24:450
382554899190,5cyclictest0-21swapper/012:35:020
382554899190,3cyclictest46118-21kthreadcore12:04:480
382554899190,2cyclictest191rcu_preempt07:10:010
38752922180,2sleep30-21swapper/307:49:483
382556199189,5cyclictest0-21swapper/208:40:012
3825561991815,1cyclictest0-21swapper/209:04:512
3825561991811,2cyclictest0-21swapper/208:04:412
382555699188,4cyclictest0-21swapper/109:44:411
3825556991815,2cyclictest72146-21latency_hist12:20:011
3825556991815,2cyclictest4122538-21systemd10:45:021
3825556991815,2cyclictest4001018-21apt-config09:25:001
3825556991815,2cyclictest3859585-21systemd-run07:35:011
3825556991815,2cyclictest3825541-21cyclictest07:19:551
3825556991815,2cyclictest1290-21dbus-daemon10:55:011
3825556991815,2cyclictest0-21swapper/111:20:011
3825556991814,3cyclictest3931962-21kthreadcore08:34:491
382554899189,3cyclictest601rcuop/308:59:450
382554899186,6cyclictest501rcuop/212:16:380
382554899186,2cyclictest501rcuop/207:56:090
382554899185,3cyclictest501rcuop/211:54:380
3825548991812,5cyclictest3915726-21unixbench-2d08:19:520
3825548991812,5cyclictest1-21systemd07:43:450
382554899180,1cyclictest0-21swapper/008:14:440
382554899180,1cyclictest0-21swapper/007:34:470
382554899180,11cyclictest501rcuop/210:20:300
2649091181,2phc2sys0-21swapper/310:44:483
2649091180,2phc2sys0-21swapper/312:23:413
2649091180,2phc2sys0-21swapper/311:45:503
2649091180,2phc2sys0-21swapper/311:44:533
2649091180,2phc2sys0-21swapper/310:30:053
2649091180,2phc2sys0-21swapper/307:54:463
38420312170,2sleep30-21swapper/307:24:433
3825561991714,1cyclictest0-21swapper/211:12:032
3825561991714,1cyclictest0-21swapper/209:49:412
3825561991714,1cyclictest0-21swapper/209:10:002
3825561991714,1cyclictest0-21swapper/207:44:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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