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2026-05-04 - 23:56
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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 100 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
130564299332,12cyclictest1452185-21/usr/sbin/munin11:15:160
130564299323,7cyclictest1479412-21apt-get11:50:150
130564299323,6cyclictest1359355-21apt-get09:15:140
130564299323,10cyclictest1346350-40unattended-upgr08:46:450
130564299319,8cyclictest13-21ksoftirqd/010:11:020
130564299313,9cyclictest1322454-21apt-get07:50:120
130564299312,9cyclictest1355321-21apt-get09:10:140
130564299312,8cyclictest1351328-21apt-get09:00:130
130564299312,7cyclictest1363321-21apt-get09:20:140
179699300,5rtkit-daemon1409105-21apt-get10:20:130
130564299303,8cyclictest1340454-21apt-get08:35:130
130564299292,8cyclictest1312629-21apt-get07:25:140
179699280,5rtkit-daemon1355036-21diskmemload09:10:261
130564299272,8cyclictest1314580-21apt-get07:30:130
1305642992724,2cyclictest66950irq/132-enp2s011:45:520
179699260,4rtkit-daemon1795-21rtkit-daemon11:09:561
130564799261,3cyclictest1435880-21python310:55:001
130564299263,3cyclictest141rcu_preempt10:20:000
130564799254,5cyclictest26-21ksoftirqd/110:56:051
130564799253,14cyclictest1382344-21apt-get09:45:141
1305642992512,8cyclictest66950irq/132-enp2s009:30:130
1305642992511,4cyclictest1355036-21diskmemload12:38:140
1305642992511,4cyclictest1355036-21diskmemload09:45:080
179699240,4rtkit-daemon1795-21rtkit-daemon12:33:061
179699240,4rtkit-daemon1795-21rtkit-daemon07:13:170
179699240,4rtkit-daemon0-21swapper/011:40:400
14674462240,9sleep10-21swapper/111:35:001
130564799249,2cyclictest1451933-21latency_hist11:15:001
130564799245,17cyclictest1468107-21perl11:35:181
130564799245,17cyclictest1363668-21tune2fs09:20:171
130564799240,6cyclictest1307550-21python307:15:011
130564299244,3cyclictest141rcu_preempt08:50:020
1305642992411,3cyclictest1355036-21diskmemload09:56:120
1305642992410,4cyclictest1355036-21diskmemload11:14:320
14094722230,4sleep11409475-21fschecks_time10:20:171
130564799239,9cyclictest1377206-1kworker/u9:010:10:131
130564799234,17cyclictest0-21swapper/107:40:161
130564799233,18cyclictest0-21swapper/107:39:571
1305647992315,6cyclictest1421842-21/usr/sbin/munin10:35:231
130564299237,4cyclictest0-21swapper/007:42:000
130564299232,15cyclictest1328321-21apt-get08:05:120
1305642992315,4cyclictest1355036-21diskmemload11:08:140
1305642992311,6cyclictest66950irq/132-enp2s010:05:140
1305642992310,3cyclictest1355036-21diskmemload12:29:020
13064992220,4sleep10-21swapper/107:10:211
130564799222,14cyclictest1320507-21apt-get07:45:151
130564799222,12cyclictest1374831-21apt-get09:35:141
130564799220,3cyclictest1347397-40apt-check08:50:221
130564799220,18cyclictest1355036-21diskmemload12:20:451
130564299222,14cyclictest1338501-21apt-get08:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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