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2026-06-16 - 04:54
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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 Tue Jun 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2771522992724,1cyclictest0-21swapper/320:00:003
2771522992421,1cyclictest0-21swapper/319:50:003
29912512220,2sleep014-21ksoftirqd/021:50:160
2771522992219,1cyclictest0-21swapper/322:10:003
2771522992219,1cyclictest0-21swapper/321:40:013
277152299221,15cyclictest2895958-21taskset20:45:003
2771522992119,1cyclictest0-21swapper/322:35:003
2771522992118,1cyclictest0-21swapper/300:05:163
2771522992116,2cyclictest27867802sleep319:20:013
277152299211,16cyclictest3099252-21taskset23:00:113
28765662200,1sleep2421rcuc/220:30:002
2771522992018,1cyclictest0-21swapper/323:10:013
2771522992018,1cyclictest0-21swapper/322:25:183
2771522992017,1cyclictest0-21swapper/323:30:153
2771522992017,1cyclictest0-21swapper/322:20:263
2771522992017,1cyclictest0-21swapper/321:55:153
277152299201,15cyclictest3137398-21taskset23:24:173
277152299201,13cyclictest2805808-21taskset19:35:003
2771522991917,1cyclictest0-21swapper/322:00:203
2771522991916,1cyclictest0-21swapper/320:30:193
2771522991916,1cyclictest0-21swapper/320:30:003
2771522991916,1cyclictest0-21swapper/300:25:113
2771522991916,1cyclictest0-21swapper/300:20:093
2771522991916,1cyclictest0-21swapper/300:20:083
2771522991915,1cyclictest0-21swapper/322:35:183
277152299191,14cyclictest2914780-21chrt20:56:473
277152299191,14cyclictest2914780-21chrt20:56:473
277152299191,14cyclictest2831371-21taskset19:52:373
277152299191,13cyclictest2908657-21sleep20:55:003
277152299189,6cyclictest2981655-21taskset21:43:013
277152299188,8cyclictest3245382-21taskset00:31:403
2771522991816,1cyclictest0-21swapper/322:45:003
2771522991816,1cyclictest0-21swapper/322:45:003
2771522991816,1cyclictest0-21swapper/320:00:073
2771522991815,1cyclictest0-21swapper/323:50:173
2771522991815,1cyclictest0-21swapper/323:50:003
2771522991815,1cyclictest0-21swapper/321:30:253
2771522991815,1cyclictest0-21swapper/319:35:163
277152299181,13cyclictest3253402-21taskset00:37:143
277152299181,13cyclictest3144645-21taskset23:27:383
277152299181,13cyclictest3117501-21taskset23:10:183
277152299181,13cyclictest2949103-21taskset21:20:213
277152299181,13cyclictest2939843-21taskset21:15:193
277152299181,13cyclictest2935720-21turbostat21:15:013
277152299181,13cyclictest2793201-21taskset19:25:113
277152299181,13cyclictest2780398-21chrt19:15:133
29685112170,7sleep12970017-21cut21:35:201
28869142171,13sleep12883193-21/usr/sbin/munin20:35:221
277152299172,12cyclictest2777623-21taskset19:11:033
2771522991715,1cyclictest0-21swapper/320:39:053
2771522991714,1cyclictest0-21swapper/322:10:213
277152299171,13cyclictest3215320-21taskset00:14:413
277152299171,13cyclictest3198391-21taskset00:00:333
277152299171,13cyclictest3167607-21taskset23:41:373
277152299171,13cyclictest2988305-21taskset21:45:263
277152299171,12cyclictest3215699-21taskset00:15:063
277152299171,12cyclictest3035568-21chrt22:16:183
277152299171,12cyclictest2990421-21taskset21:50:033
277152299171,12cyclictest2863501-21taskset20:17:263
277152299170,13cyclictest3083367-21turbostat22:50:003
30347442161,11sleep13034788-21/usr/sbin/munin22:15:241
277152299168,6cyclictest30908012sleep322:54:033
277152299161,12cyclictest3159737-21taskset23:36:243
277152299161,12cyclictest3128741-21taskset23:16:443
277152299161,12cyclictest3091425-21taskset22:55:113
277152299161,12cyclictest2951527-21taskset21:25:013
277152299161,12cyclictest2927615-21taskset21:06:013
277152299161,12cyclictest2921128-21taskset21:00:373
277152299161,12cyclictest2901889-21taskset20:46:083
277152299161,12cyclictest2869886-21taskset20:22:123
277152299161,12cyclictest2818388-21taskset19:41:063
277152299161,11cyclictest3184567-21taskset23:55:093
277152299161,11cyclictest3184567-21taskset23:55:083
277152299161,11cyclictest2844661-21taskset20:05:073
277152299151,12cyclictest2856932-21taskset20:10:533
27769662140,6sleep02777009-21ntpq19:10:210
31288022131,8sleep13128806-21ssh23:16:541
30444792131,8sleep13044485-21ssh22:24:421
30111382131,9sleep03011237-21ntpq22:00:190
30091112130,11sleep23010869-21cut22:00:172
28379432131,8sleep12838004-21sendmail-msp20:00:011
31069412120,5sleep22927951-21diskmemload23:05:092
30214762122,7sleep2222-21plymouthd22:10:122
29802152120,4sleep02980263-21ntpq21:40:230
29586332120,9sleep12958639-21ssh21:28:531
29424382120,9sleep22942444-21ssh21:16:552
32073532110,8sleep13207357-21ssh00:09:021
31945052111,7sleep03196187-21kthreadcore00:00:190
31887322111,7sleep13189698-21memory23:55:201
31887322111,7sleep13189698-21memory23:55:191
31613102110,2sleep0171rcu_preempt23:40:120
29422302110,8sleep02942238-21sshd-auth21:16:220
28314412110,3sleep1222-21plymouthd19:53:321
28211202110,7sleep12822899-21kthreadcore19:45:181
32139072101,2sleep00-21swapper/000:10:350
31925382101,2sleep20-21swapper/200:00:132
31820852101,5sleep03182130-21ntpq23:50:210
31276842101,6sleep00-21swapper/023:15:210
31053092101,6sleep23105315-21ssh23:01:082
30057092101,5sleep13005735-21munin-run22:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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