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2026-06-25 - 15:45
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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 Thu Jun 25, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2854362273190,29sleep00-21swapper/007:06:250
2855692269192,27sleep10-21swapper/107:07:521
3534732810,4sleep10-21swapper/109:35:001
179699720,3rtkit-daemon1795-21rtkit-daemon09:59:140
179699690,3rtkit-daemon1795-21rtkit-daemon11:15:290
179699660,3rtkit-daemon1795-21rtkit-daemon11:28:010
179699660,3rtkit-daemon1795-21rtkit-daemon08:42:240
179699640,4rtkit-daemon1795-21rtkit-daemon11:53:010
179699640,3rtkit-daemon1795-21rtkit-daemon08:48:160
179699630,3rtkit-daemon1795-21rtkit-daemon07:41:550
179699580,4rtkit-daemon1795-21rtkit-daemon10:37:210
179699560,26rtkit-daemon893-21snmpd10:25:470
179699540,4rtkit-daemon1795-21rtkit-daemon11:44:060
179699500,4rtkit-daemon1795-21rtkit-daemon12:22:150
179699500,4rtkit-daemon1795-21rtkit-daemon11:48:210
179699500,4rtkit-daemon1795-21rtkit-daemon09:16:560
179699490,4rtkit-daemon1795-21rtkit-daemon12:39:031
179699490,3rtkit-daemon1795-21rtkit-daemon11:58:410
179699490,3rtkit-daemon0-21swapper/010:45:061
179699450,3rtkit-daemon1795-21rtkit-daemon07:48:180
28592399444,9cyclictest334829-21ls09:10:000
28592399423,13cyclictest288650-21appstreamcli07:15:050
28592399416,8cyclictest437060-21apt-get11:30:120
179699410,3rtkit-daemon0-21swapper/010:50:520
179699410,3rtkit-daemon0-21swapper/007:24:020
28592399404,9cyclictest375538-21idleruntime-cro10:05:010
28592399401,8cyclictest345975-21cut09:25:010
179699400,3rtkit-daemon0-21swapper/010:16:500
28592399395,8cyclictest295532-21cut07:30:180
28592399391,8cyclictest462308-21wc12:05:000
179699380,3rtkit-daemon0-21swapper/011:38:080
28592399373,12cyclictest429877-21apt-get11:20:120
28592399372,9cyclictest330961-21latency_hist09:00:000
28592399364,8cyclictest367853-21sed09:55:010
28592399361,7cyclictest415233-21latency_hist11:00:010
28592399361,11cyclictest465766-21latency_hist12:10:000
28592399360,9cyclictest402355-21/usr/sbin/munin10:40:230
179699360,3rtkit-daemon1795-21rtkit-daemon10:30:280
179699360,3rtkit-daemon0-21swapper/012:31:090
179699360,3rtkit-daemon0-21swapper/012:31:090
179699360,3rtkit-daemon0-21swapper/011:05:390
179699360,3rtkit-daemon0-21swapper/011:04:150
179699360,3rtkit-daemon0-21swapper/009:03:521
28592399355,8cyclictest351077-21unixbench-2d09:30:250
28592399354,10cyclictest387363-21/usr/sbin/munin10:20:210
28592399354,10cyclictest387363-21/usr/sbin/munin10:20:210
28592399353,7cyclictest361579-21ntpq09:45:200
28592399352,9cyclictest486232-21ssh12:37:090
28592399352,11cyclictest376372-21latency10:05:180
28592399351,12cyclictest466000-21apt-get12:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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