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2025-11-20 - 06:03
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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 Nov 20, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28188222274231,28sleep00-21swapper/019:09:080
28186792260218,27sleep10-21swapper/119:07:351
125899710,6rtkit-daemon2896820-21munin-run22:05:001
125899640,3rtkit-daemon0-21swapper/020:30:240
125899610,3rtkit-daemon0-21swapper/020:13:580
125899590,5rtkit-daemon1257-21rtkit-daemon23:02:061
125899590,3rtkit-daemon0-21swapper/019:19:110
125899580,3rtkit-daemon0-21swapper/021:42:300
125899580,3rtkit-daemon0-21swapper/021:10:180
125899580,3rtkit-daemon0-21swapper/020:21:270
125899580,3rtkit-daemon0-21swapper/019:21:430
2819007995711,5cyclictest2922607-21apt-get22:40:161
125899570,3rtkit-daemon0-21swapper/020:26:460
281900799563,8cyclictest2979432-21apt-get00:00:141
281900799562,9cyclictest2958280-21apt-get23:30:131
125899560,3rtkit-daemon0-21swapper/019:32:490
125899550,3rtkit-daemon0-21swapper/023:18:030
125899550,3rtkit-daemon0-21swapper/019:59:430
281900799541,13cyclictest2944044-21apt-get23:10:121
125899540,3rtkit-daemon0-21swapper/021:32:270
125899540,3rtkit-daemon0-21swapper/021:09:280
125899540,3rtkit-daemon0-21swapper/020:45:300
125899540,3rtkit-daemon0-21swapper/020:35:530
125899540,3rtkit-daemon0-21swapper/020:06:200
125899540,3rtkit-daemon0-21swapper/019:54:030
125899540,3rtkit-daemon0-21swapper/019:11:420
125899530,5rtkit-daemon1257-21rtkit-daemon00:10:210
125899530,4rtkit-daemon1257-21rtkit-daemon23:45:540
125899530,3rtkit-daemon0-21swapper/021:28:420
125899530,3rtkit-daemon0-21swapper/019:47:060
125899530,3rtkit-daemon0-21swapper/019:42:510
29682172520,4sleep10-21swapper/123:44:051
125899520,4rtkit-daemon1257-21rtkit-daemon23:01:190
125899520,4rtkit-daemon1257-21rtkit-daemon21:17:470
125899520,3rtkit-daemon0-21swapper/020:17:430
125899520,3rtkit-daemon0-21swapper/019:25:020
125899510,4rtkit-daemon1257-21rtkit-daemon23:32:010
125899510,4rtkit-daemon1257-21rtkit-daemon23:08:030
125899510,4rtkit-daemon1257-21rtkit-daemon22:49:270
125899510,3rtkit-daemon1257-21rtkit-daemon22:00:270
125899510,3rtkit-daemon1257-21rtkit-daemon21:57:120
125899500,4rtkit-daemon1257-21rtkit-daemon23:53:300
125899500,4rtkit-daemon1257-21rtkit-daemon00:37:380
125899500,3rtkit-daemon0-21swapper/021:47:510
125899500,3rtkit-daemon0-21swapper/020:00:040
125899490,4rtkit-daemon1257-21rtkit-daemon22:56:190
125899490,4rtkit-daemon1257-21rtkit-daemon22:26:330
125899490,4rtkit-daemon1257-21rtkit-daemon00:26:200
125899490,4rtkit-daemon1257-21rtkit-daemon00:06:430
125899480,4rtkit-daemon1257-21rtkit-daemon23:56:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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