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2026-05-22 - 02:37
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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 Thu May 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24790062310,2sleep0222-21plymouthd08:50:170
24145082280,4sleep087-1kworker/0:1H+kblockd08:00:010
2348411992825,1cyclictest0-21swapper/309:00:023
2348411992522,1cyclictest0-21swapper/312:15:013
2348411992522,1cyclictest0-21swapper/311:35:003
2348411992421,1cyclictest0-21swapper/310:00:013
2348411992421,1cyclictest0-21swapper/309:34:363
2348411992320,1cyclictest0-21swapper/312:25:003
234841199211,14cyclictest2568151-21taskset09:50:003
2348411992017,1cyclictest0-21swapper/309:20:223
234841199201,15cyclictest2358422-21taskset07:15:173
234841199192,13cyclictest2780643-21taskset12:04:563
2348411991916,1cyclictest0-21swapper/310:40:003
2348411991916,1cyclictest0-21swapper/310:10:253
2348411991916,1cyclictest0-21swapper/308:41:573
234841199191,14cyclictest2630300-21taskset10:28:173
234841199191,14cyclictest2354390-21taskset07:10:443
234841199191,13cyclictest2835111-21taskset12:38:123
234841199191,13cyclictest2835111-21taskset12:38:113
234841199191,13cyclictest2685635-21taskset11:03:503
234841199191,13cyclictest2401714-21sleep07:54:563
234841199191,13cyclictest2376304-21taskset07:30:013
25734092181,5sleep02573446-21ntpq09:50:230
234841199182,12cyclictest2383708-21taskset07:35:143
234841199182,11cyclictest25918572sleep310:05:133
2348411991815,1cyclictest0-21swapper/312:10:003
2348411991815,1cyclictest0-21swapper/311:25:003
2348411991815,1cyclictest0-21swapper/310:15:513
2348411991815,1cyclictest0-21swapper/309:36:073
234841199181,13cyclictest2803191-21taskset12:17:063
234841199181,13cyclictest2756693-21taskset11:49:053
234841199181,13cyclictest2749131-21taskset11:44:553
234841199181,13cyclictest2670555-21chrt10:55:113
234841199181,13cyclictest2669727-21taskset10:53:443
234841199181,13cyclictest2633413-21taskset10:30:193
234841199181,13cyclictest2566475-21taskset09:46:083
234841199181,13cyclictest2534424-21taskset09:27:313
234841199181,13cyclictest2517965-21taskset09:15:323
234841199181,13cyclictest2395093-21taskset07:42:403
234841199181,13cyclictest2375697-21taskset07:25:273
234841199181,13cyclictest2363539-21taskset07:20:073
234841199181,12cyclictest2414399-21taskset07:59:553
234841199180,14cyclictest2819286-21taskset12:28:013
234841199180,14cyclictest2764627-21taskset11:54:133
234841199176,8cyclictest25038702sleep309:10:003
234841199172,12cyclictest2725239-21taskset11:29:203
234841199172,12cyclictest2452509-21taskset08:27:223
234841199172,12cyclictest2430370-21taskset08:10:183
2348411991714,1cyclictest0-21swapper/308:35:143
2348411991714,1cyclictest0-21swapper/308:25:003
2348411991714,1cyclictest0-21swapper/307:45:183
234841199171,13cyclictest2692646-21taskset11:06:263
234841199171,13cyclictest2653035-21taskset10:41:053
234841199171,13cyclictest2510872-21taskset09:12:403
234841199171,12cyclictest2770579-21taskset11:55:223
234841199171,12cyclictest2694338-21chrt11:10:113
234841199171,12cyclictest2552548-21chrt09:40:113
234841199171,12cyclictest2552548-21chrt09:40:103
234841199171,12cyclictest2491354-21taskset09:00:093
234841199171,12cyclictest2478876-21taskset08:50:143
234841199171,12cyclictest2458738-21taskset08:30:383
234841199171,12cyclictest2439584-21taskset08:15:443
234841199171,12cyclictest2426930-21taskset08:06:493
234841199171,12cyclictest2419950-21taskset08:00:233
234841199170,14cyclictest2587467-21taskset10:00:193
234841199170,13cyclictest2709745-21turbostat11:20:003
27074932160,9sleep12707522-21ntp_states11:15:241
2348411991613,1cyclictest0-21swapper/312:30:183
234841199161,12cyclictest2734140-21taskset11:35:183
234841199161,12cyclictest2477926-21taskset08:45:423
234841199161,11cyclictest2654764-21taskset10:45:053
234841199160,12cyclictest2621419-21taskset10:20:363
24342192141,5sleep02434432-21cut08:15:180
6881130,3low-memory-moni2544078-21dpkg-deb09:34:591
26858382130,7sleep22685844-21ssh11:04:222
25756332130,4sleep12575639-21ssh09:54:531
25678932120,9sleep22568149-21cat09:50:012
23911282120,9sleep12392897-21cut07:40:181
23538792121,3sleep12353929-21ps07:10:241
6881110,2low-memory-moni2544077-21dpkg-deb09:34:582
27495032111,3sleep0222-21plymouthd11:45:130
27484352110,1sleep20-21swapper/211:42:582
27042232111,7sleep02705913-21grep11:15:190
26966762110,8sleep12698376-21tr11:10:181
26784942112,5sleep02678527-21apt-get11:00:110
26616602110,7sleep072-21kcompactd010:48:130
25120492112,5sleep22512082-21apt-get09:15:122
24721452111,6sleep12472178-21apt-get08:45:121
23901182111,6sleep02391126-21kthreadcore07:40:170
28106222100,3sleep12810628-21ssh12:20:551
27977032101,6sleep22798535-21cut12:15:182
27888422100,3sleep2222-21plymouthd12:10:102
27240642100,7sleep10-21swapper/111:26:031
26859332100,3sleep12685939-21ssh11:04:371
26678112101,7sleep12667892-21ntp_kernel_err10:50:211
26293312100,5sleep22629337-21ssh10:25:492
25905112100,7sleep02590516-21sh10:02:140
25506262101,6sleep12550634-21ssh09:35:441
25144722101,2sleep1171rcu_preempt09:15:191
24901382102,4sleep02490179-21ntpq08:55:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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