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2026-05-07 - 00:54
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Wed May 06, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36899012258186,56sleep10-21swapper/107:07:541
36897422257186,27sleep00-21swapper/007:06:130
37450532600,4sleep00-21swapper/009:17:100
369022399592,37cyclictest3780816-21apt-get10:05:130
369022399582,37cyclictest3892401-21apt-get12:35:130
36958102560,1chrt3695809-21/usr/sbin/munin07:20:221
179699560,4rtkit-daemon1795-21rtkit-daemon12:28:340
179699550,4rtkit-daemon1795-21rtkit-daemon11:20:410
369022399532,33cyclictest3873874-21apt-get12:10:130
179699530,4rtkit-daemon1795-21rtkit-daemon09:37:340
369022399528,22cyclictest3791707-21sed10:20:000
369022399524,31cyclictest3832333-21apt-get11:15:110
369022399522,26cyclictest3791866-21apt-get10:20:130
369022399521,30cyclictest3891499-21taskset12:33:400
3690223995210,20cyclictest3848789-21sh11:35:250
179699520,4rtkit-daemon1795-21rtkit-daemon10:28:030
3690223995113,25cyclictest3813954-21sh10:50:100
369022399511,22cyclictest3746648-21apt-get09:20:130
3690223995112,21cyclictest3800730-21sh10:31:090
369022399510,27cyclictest3776331-21apt-get10:00:060
179699510,4rtkit-daemon1795-21rtkit-daemon11:31:160
179699510,3rtkit-daemon1795-21rtkit-daemon07:40:180
369022399506,25cyclictest3869780-21/usr/sbin/munin12:05:140
369022399501,33cyclictest3862339-21apt-get11:55:120
369022399501,33cyclictest3828774-21apt-get11:10:140
369022399501,33cyclictest3706641-21apt-get07:50:120
369022399500,28cyclictest3817688-21apt-get10:55:130
369022399500,28cyclictest3738137-21diskmemload11:28:280
179699500,4rtkit-daemon1795-21rtkit-daemon08:38:490
369022399492,25cyclictest3769245-21apt-get09:50:110
369022399491,31cyclictest3858684-21apt-get11:50:110
3690223994912,20cyclictest3753395-21sh09:29:070
369022399490,34cyclictest3692892-21apt-get07:15:140
369022399490,33cyclictest3851349-21apt-get11:40:120
369022399490,32cyclictest3704694-21apt-get07:45:120
369022399490,32cyclictest3696811-21apt-get07:25:110
369022399490,28cyclictest3720948-21df_inode08:25:150
369022399490,25cyclictest3802775-21apt-get10:35:130
369022399490,25cyclictest1-21systemd10:49:590
369022399490,22cyclictest3826112-21sensors_temp11:05:230
369022399487,23cyclictest3732009-21seq08:52:280
369022399487,23cyclictest3727768-21sed08:40:240
369022399482,30cyclictest3772898-21apt-get09:55:130
369022399480,33cyclictest3765424-21apt-get09:45:130
369022399480,32cyclictest3728564-21apt-get08:45:120
369022399471,31cyclictest3877513-21apt-get12:15:130
369022399471,30cyclictest3720098-21seq08:20:250
369022399471,30cyclictest3702349-21file07:38:460
369022399471,29cyclictest3858306-21ssh11:49:460
369022399470,30cyclictest3884644-21seq12:24:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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