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2026-06-13 - 16:28
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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 rackbslot7.osadl.org (updated Sat Jun 13, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45189912733,59cyclictest0-21swapper/010:39:360
45189912733,59cyclictest0-21swapper/010:39:360
4374212313,74sleep04407-21munin-run06:59:090
45189911627,63cyclictest0-21swapper/008:34:100
45189911551,55cyclictest24288-21latency_hist10:14:130
45189911435,69cyclictest15350irq/295-2188000.ethernet07:09:220
45189911435,69cyclictest15350irq/295-2188000.ethernet07:09:220
4518991123,70cyclictest23124-21apt-get07:54:210
45189910813,59cyclictest0-21swapper/011:53:080
45189910813,59cyclictest0-21swapper/011:53:080
4518991043,66cyclictest5792-21ssh10:36:520
4518991042,63cyclictest24703-21ssh12:03:520
4518991042,61cyclictest23723-21rm11:06:370
45189910342,54cyclictest0-21swapper/009:14:470
4518991024,61cyclictest352-21runrttasks10:50:370
45189910153,41cyclictest1481-21cpuspeed11:24:260
45189910143,51cyclictest0-21swapper/012:09:120
4523999978,14cyclictest7386-21processes08:44:431
4523999938,36cyclictest7561-21sh10:39:421
4523999938,36cyclictest7561-21sh10:39:421
4518999913,63cyclictest8970-21kworker/u17:3+xprtiod11:40:390
4518999913,58cyclictest18061-21sh10:04:040
4523999822,37cyclictest12780-21sed10:49:121
4518999718,54cyclictest13596-21fschecks_time11:44:320
451899964,59cyclictest0-21swapper/010:33:010
451899964,59cyclictest0-21swapper/010:33:010
4518999642,45cyclictest0-21swapper/008:39:440
451899963,81cyclictest11961-21apt-get08:59:260
4518999635,51cyclictest0-21swapper/011:03:510
451899963,54cyclictest0-21swapper/011:32:450
451899962,59cyclictest352-21runrttasks12:13:510
451899962,55cyclictest4123-21seq08:34:400
4523999524,35cyclictest352-21runrttasks08:10:141
451899956,63cyclictest58-21kcompactd010:49:100
451899953,55cyclictest0-21swapper/011:23:240
4523999425,32cyclictest1269-21idleruntime-cro12:19:091
451899944,82cyclictest0-21swapper/010:54:230
451899943,83cyclictest0-21swapper/012:14:200
451899943,55cyclictest0-21swapper/010:04:300
4518999421,62cyclictest10241-21tune2fs07:14:330
4523999325,29cyclictest3104-21runrttasks10:32:441
4523999325,29cyclictest3104-21runrttasks10:32:441
4523999324,28cyclictest27950-21netstat10:19:371
451899933,82cyclictest11600-21apt-get07:19:220
453299926,50cyclictest39-21ksoftirqd/207:25:372
451899924,56cyclictest29104-21seq08:11:320
451899923,56cyclictest32099-21seq09:32:440
451899923,56cyclictest32099-21seq09:32:440
4518999235,50cyclictest0-21swapper/008:54:110
4518999228,59cyclictest0-21swapper/009:49:120
4518999228,59cyclictest0-21swapper/009:49:120
4523999123,29cyclictest26650-21sh09:24:101
4523999117,36cyclictest0-21swapper/110:59:471
4518999141,44cyclictest28095-21ssh09:24:570
451899913,55cyclictest0-21swapper/007:39:430
451899912,54cyclictest0-21swapper/007:35:350
4518999112,44cyclictest24394-21kworker/u17:2+xprtiod10:23:170
4532999026,31cyclictest39-21ksoftirqd/209:03:292
4523999021,25cyclictest24984-21ssh10:14:401
451899909,45cyclictest5831-21kworker/u17:1+xprtiod09:53:350
4518999031,53cyclictest0-21swapper/009:57:100
4518999031,53cyclictest0-21swapper/009:57:100
451899902,59cyclictest29732-21seq11:16:480
451899902,53cyclictest26164-21seq10:16:350
34092909,57sleep13452-21latency06:54:421
4523998927,24cyclictest22831-21seq07:54:021
4523998922,28cyclictest9759-21systemd-run07:14:101
4523998922,28cyclictest9759-21systemd-run07:14:101
4523998920,32cyclictest0-21swapper/111:54:481
451899894,74cyclictest21514-21apt-get07:49:230
451899893,55cyclictest0-21swapper/011:54:180
451899892,77cyclictest4030-21/usr/sbin/munin09:39:380
451899892,58cyclictest23887-21runrttasks09:19:140
453299882,42cyclictest39-21ksoftirqd/209:05:522
4523998832,23cyclictest0-21swapper/107:35:421
4523998827,24cyclictest21185-21seq07:48:551
451899884,77cyclictest30526-21cstates10:24:280
451899883,78cyclictest2374-21systemd-journal08:29:090
451899883,53cyclictest0-21swapper/011:35:290
451899883,53cyclictest0-21swapper/011:35:290
4518998829,53cyclictest0-21swapper/009:14:090
4518998829,53cyclictest0-21swapper/009:14:090
451899882,79cyclictest0-21swapper/007:59:250
4518998823,58cyclictest0-21swapper/009:04:260
4532998763,15cyclictest12178-21sh09:54:112
4532998742,11cyclictest181rcu_preempt12:24:592
4523998728,24cyclictest12867-21seq07:23:271
4523998726,19cyclictest28146-21seq09:25:051
4523998724,24cyclictest30769-21ssh12:14:091
4523998720,24cyclictest19676-21snmpd10:58:081
451899875,47cyclictest0-21swapper/008:58:010
451899875,47cyclictest0-21swapper/008:58:010
451899873,72cyclictest352-21runrttasks12:19:240
451899873,72cyclictest352-21runrttasks12:19:240
451899873,55cyclictest0-21swapper/011:11:120
451899872,57cyclictest4503-21seq12:24:180
4532998638,13cyclictest16771-21memory11:49:362
4532998638,13cyclictest16771-21memory11:49:362
4532998611,44cyclictest39-21ksoftirqd/211:07:232
4523998629,24cyclictest1399-21seq08:25:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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