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2026-08-15 - 09:21
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sat Aug 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283767923670,6sleep1321rcuc/120:20:271
278329023180,1sleep10-21swapper/119:40:181
310590121400,5sleep134-21ksoftirqd/123:20:251
2740041992623,1cyclictest0-21swapper/322:35:183
2740041992623,1cyclictest0-21swapper/320:55:013
2740041992622,1cyclictest0-21swapper/323:20:173
2740041992421,1cyclictest0-21swapper/323:10:183
2740041992421,1cyclictest0-21swapper/319:20:143
2740041992320,1cyclictest0-21swapper/300:20:183
30730922220,3sleep13073096-21kthreadcore23:00:201
274004199222,16cyclictest2863682-21taskset20:40:423
274004199222,15cyclictest3210537-21chrt00:30:103
2740041992219,1cyclictest0-21swapper/320:00:073
2740041992219,1cyclictest0-21swapper/300:00:013
2740041992118,1cyclictest0-21swapper/322:00:183
2740041992118,1cyclictest0-21swapper/321:40:123
2740041992118,1cyclictest0-21swapper/319:40:143
2740041992118,1cyclictest0-21swapper/300:35:223
274004199211,16cyclictest3129334-21taskset23:35:223
274004199211,15cyclictest3099224-21taskset23:17:263
274004199202,14cyclictest2868871-21taskset20:45:193
2740041992018,0cyclictest0-21swapper/321:20:013
2740041992017,1cyclictest0-21swapper/323:40:423
2740041992017,1cyclictest0-21swapper/323:00:013
2740041992017,1cyclictest0-21swapper/321:35:013
2740041992017,1cyclictest0-21swapper/321:00:183
2740041992017,1cyclictest0-21swapper/319:45:083
274004199201,15cyclictest2968937-21taskset21:55:193
274004199201,14cyclictest3209834-21taskset00:28:593
274004199201,13cyclictest2768015-21taskset19:30:023
274004199192,13cyclictest3084405-21taskset23:10:003
274004199192,13cyclictest2990787-21taskset22:10:143
2740041991916,1cyclictest0-21swapper/322:55:013
2740041991916,1cyclictest0-21swapper/322:40:063
2740041991916,1cyclictest0-21swapper/321:20:173
2740041991916,1cyclictest0-21swapper/319:55:163
274004199191,15cyclictest2896044-21turbostat21:10:003
274004199191,14cyclictest2901746-21taskset21:10:243
274004199191,14cyclictest2799540-21taskset19:51:023
274004199191,13cyclictest3192738-21taskset00:15:273
274004199191,13cyclictest3171261-21taskset00:05:013
274004199191,13cyclictest3139822-21chrt23:45:123
274004199191,13cyclictest2850246-21chrt20:30:193
274004199191,13cyclictest2740230-21chrt19:10:173
2740041991816,1cyclictest0-21swapper/323:00:253
2740041991815,1cyclictest0-21swapper/322:20:283
2740041991815,1cyclictest0-21swapper/322:20:273
274004199181,13cyclictest3155523-21taskset23:55:113
274004199181,13cyclictest3123285-21taskset23:33:463
274004199181,13cyclictest3115165-21taskset23:27:553
274004199181,13cyclictest3051640-21taskset22:45:343
274004199181,13cyclictest3028039-21taskset22:30:553
274004199181,13cyclictest2942682-21chrt21:38:593
274004199181,13cyclictest2925364-21taskset21:25:243
274004199181,13cyclictest2883169-21sleep21:00:003
274004199181,13cyclictest2838638-21taskset20:25:053
274004199181,13cyclictest2767462-21taskset19:26:093
2740041991714,1cyclictest0-21swapper/320:20:163
274004199171,13cyclictest3152932-21taskset23:50:223
274004199171,13cyclictest2985098-21taskset22:05:173
274004199171,13cyclictest2857216-21taskset20:35:403
274004199171,13cyclictest2746755-21taskset19:15:023
274004199171,12cyclictest3015668-21taskset22:25:183
274004199171,12cyclictest2964356-21chrt21:50:223
274004199171,12cyclictest2957321-21taskset21:45:573
274004199171,12cyclictest2818798-21taskset20:05:583
274004199170,13cyclictest2780254-21taskset19:36:033
30614082161,2sleep10-21swapper/122:55:121
274004199167,6cyclictest28223762sleep320:10:203
2740041991613,1cyclictest0-21swapper/300:10:253
274004199161,12cyclictest2998371-21taskset22:15:033
274004199161,12cyclictest2831570-21taskset20:16:283
30610462151,4sleep23061107-21munin-run22:55:012
32026012149,2sleep00-21swapper/000:25:040
31943752141,10sleep23194440-21sendmail-msp00:20:002
31372422141,4sleep23137282-21ntpq23:40:232
309150321410,2sleep02997995-21kworker/0:2+kacpid23:12:550
30450952149,2sleep00-21swapper/022:44:200
32019652131,9sleep23201969-21ssh00:24:002
31783632130,10sleep13178369-21ssh00:08:451
29595152131,9sleep12959085-21/usr/sbin/munin21:50:171
29443372130,10sleep02945031-21tr21:40:170
27611852132,3sleep1222-21plymouthd19:23:111
31242772121,9sleep03124481-21hddtemp_smartct23:35:160
30944012120,9sleep13096076-21cut23:15:161
30117672123,3sleep23011809-21sh22:20:252
30117672123,3sleep23011809-21sh22:20:252
30056442121,8sleep23005646-21ssh22:19:042
29263732121,8sleep12926379-21ssh21:27:151
29094552121,8sleep02909500-21ntp_states21:15:230
28886792121,8sleep02883193-21sendmail-msp21:00:240
28834222121,3sleep10-21swapper/121:00:131
27762412121,8sleep12777998-21kthreadcore19:35:181
30431272110,7sleep13043175-21ntpq22:40:241
30329122110,2sleep20-21swapper/222:35:192
29802082111,7sleep02980256-21ntpq22:00:260
29381322111,7sleep02939409-21tr21:35:200
28903362110,4sleep02891154-21cut21:05:170
28766922110,1sleep00-21swapper/020:54:030
28573482110,7sleep0222-21plymouthd20:37:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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