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2026-05-04 - 17:36
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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 Mon May 04, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130397323560,10sleep1251rcuc/107:05:161
13053362319276,29sleep00-21swapper/007:08:140
15166082710,10sleep126-21ksoftirqd/112:36:291
130564799582,9cyclictest1424485-21apt-get10:40:141
14573872560,4sleep01457390-21timerwakeupswit11:20:250
14128742560,5sleep11412857-21apt-get10:25:131
130564299544,9cyclictest1332629-21apt-get08:15:140
14843872500,4sleep00-21swapper/011:55:250
130564299505,21cyclictest1416737-21apt-get10:30:110
179699480,3rtkit-daemon0-21swapper/012:12:190
13792462480,5sleep00-21swapper/009:40:210
179699450,4rtkit-daemon1443229-21ssh11:03:000
179699450,3rtkit-daemon0-21swapper/010:48:570
130564799453,9cyclictest1405087-21apt-get10:15:141
130564799453,10cyclictest1346080-21appstreamcli08:46:251
130564299443,14cyclictest1432356-21apt-get10:50:140
179699430,3rtkit-daemon0-21swapper/012:20:440
179699430,3rtkit-daemon0-21swapper/010:57:380
179699430,3rtkit-daemon0-21swapper/010:43:350
179699430,3rtkit-daemon0-21swapper/010:26:260
179699420,4rtkit-daemon0-21swapper/011:35:320
179699420,3rtkit-daemon0-21swapper/009:50:520
179699410,3rtkit-daemon0-21swapper/012:06:520
179699410,3rtkit-daemon0-21swapper/011:27:480
179699410,3rtkit-daemon0-21swapper/009:38:440
179699400,4rtkit-daemon0-21swapper/109:18:591
14905072400,1sleep00-21swapper/012:04:290
130564799403,9cyclictest1506995-21apt-get12:25:141
179699390,3rtkit-daemon0-21swapper/012:16:230
130564799393,11cyclictest1440515-21apt-get11:00:141
130564299392,7cyclictest1334604-21apt-get08:20:130
130564799383,10cyclictest1452206-21apt-get11:15:151
1305642993714,5cyclictest1463801-21sort11:30:100
130564299362,7cyclictest1308706-21apt-get07:15:130
1305642993614,5cyclictest1514395-21fwupd12:34:570
179699350,4rtkit-daemon1795-21rtkit-daemon09:07:201
130564799351,13cyclictest1498677-21apt-get12:15:141
130564799351,13cyclictest1328321-21apt-get08:05:141
130564299352,9cyclictest1367021-21apt-get09:25:130
130564299352,8cyclictest1353279-21apt-get09:05:130
130564299352,8cyclictest1336551-21apt-get08:25:130
130564299352,10cyclictest1320507-21apt-get07:45:130
179699340,4rtkit-daemon161rcuc/010:03:380
130564799343,8cyclictest1475440-21apt-get11:45:141
1305642993414,5cyclictest1330272-21apt-get08:10:150
179699330,4rtkit-daemon1795-21rtkit-daemon11:55:141
130564299334,9cyclictest1316528-21apt-get07:35:140
130564299332,9cyclictest1349359-21apt-get08:55:110
130564299332,8cyclictest1342429-21apt-get08:40:150
130564299332,7cyclictest1324402-21apt-get07:55:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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