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2026-06-09 - 05:05
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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 Tue Jun 09, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5198472268188,27sleep10-21swapper/119:08:341
5199812257174,27sleep00-21swapper/019:09:590
52010499564,8cyclictest671839-21apt-get23:30:131
52010499562,7cyclictest631467-21apt-get22:35:131
179699560,4rtkit-daemon1795-21rtkit-daemon19:35:380
179699560,4rtkit-daemon1795-21rtkit-daemon19:35:370
52010499552,6cyclictest639007-21apt-get22:45:111
52010499542,6cyclictest524746-21apt-get19:20:111
52010499541,6cyclictest546233-21apt-get20:15:111
52009999543,10cyclictest594443-21apt-get21:45:130
52010499533,5cyclictest532570-21apt-get19:40:141
52010499523,6cyclictest583387-21apt-get21:30:141
52009999521,13cyclictest558068-21apt-get20:45:130
179699520,3rtkit-daemon1795-21rtkit-daemon21:57:440
52010499512,6cyclictest542340-21apt-get20:05:151
52009999512,8cyclictest675574-21apt-get23:35:140
52010499498,6cyclictest531330-21ntp_kernel_err19:35:201
52010499498,6cyclictest531330-21ntp_kernel_err19:35:201
179699490,3rtkit-daemon1795-21rtkit-daemon23:52:561
179699490,3rtkit-daemon1795-21rtkit-daemon23:07:330
52010499481,6cyclictest568044-21diskmemload23:55:211
52010499481,5cyclictest646600-21diskstats22:55:161
52010499481,10cyclictest561965-21apt-get20:55:111
52010499472,11cyclictest0-21swapper/100:35:491
52010499471,10cyclictest554398-21perl20:35:171
52010499470,8cyclictest614759-21ssh22:11:031
52010499470,16cyclictest659775-21ssh23:13:081
6056602460,3sleep0605273-21python322:00:020
52010499466,5cyclictest568044-21diskmemload21:59:211
52010499463,10cyclictest627780-21apt-get22:30:131
52010499462,8cyclictest568044-21diskmemload23:35:391
52010499461,9cyclictest568044-21diskmemload00:34:381
179699460,3rtkit-daemon0-21swapper/120:27:281
52010499451,9cyclictest568044-21diskmemload22:18:221
52010499451,9cyclictest568044-21diskmemload00:19:091
52010499451,5cyclictest568044-21diskmemload21:48:521
179699450,3rtkit-daemon0-21swapper/021:51:331
52010499442,6cyclictest568044-21diskmemload23:26:471
52010499442,6cyclictest568044-21diskmemload23:06:541
52010499441,9cyclictest568044-21diskmemload21:27:461
52010499441,9cyclictest568044-21diskmemload00:21:541
52010499441,8cyclictest568044-21diskmemload23:48:281
52010499441,8cyclictest568044-21diskmemload22:26:381
52010499441,7cyclictest568044-21diskmemload23:00:031
52010499441,6cyclictest568044-21diskmemload22:50:161
52010499441,6cyclictest568044-21diskmemload00:05:251
179699440,3rtkit-daemon0-21swapper/122:42:431
52010499432,7cyclictest568044-21diskmemload00:01:051
52010499432,5cyclictest711680-21apt-get00:25:121
52010499432,5cyclictest568044-21diskmemload21:18:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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