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2025-12-25 - 03:01
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Wed Dec 24, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147464221930,1sleep1321rcuc/109:15:181
1310453992825,1cyclictest0-21swapper/309:00:013
1310453992622,1cyclictest0-21swapper/309:40:003
1310453992521,1cyclictest0-21swapper/311:35:013
131045399251,20cyclictest1631380-21turbostat11:20:003
1310453992320,1cyclictest0-21swapper/307:30:003
1310453992017,1cyclictest0-21swapper/311:55:003
1310453991916,1cyclictest0-21swapper/309:25:003
1310453991916,1cyclictest0-21swapper/308:20:123
131045399191,13cyclictest1618793-21taskset11:10:013
131045399191,13cyclictest1344890-21taskset07:35:013
1310453991815,1cyclictest0-21swapper/309:00:213
1310453991815,1cyclictest0-21swapper/308:15:003
1310453991815,1cyclictest0-21swapper/308:15:003
131045399181,14cyclictest1316126-21taskset07:10:203
131045399181,13cyclictest1421564-21turbostat08:35:003
131045399181,13cyclictest1402157-21taskset08:15:243
1310453991714,1cyclictest0-21swapper/308:06:133
1310453991714,1cyclictest0-21swapper/307:30:193
131045399171,13cyclictest1376815-21sleep08:00:003
131045399171,12cyclictest1620387-21taskset11:10:173
131045399171,12cyclictest1580549-21taskset10:39:553
131045399170,13cyclictest1478615-21chrt09:19:563
131045399166,7cyclictest13217562sleep307:15:183
1310453991613,1cyclictest0-21swapper/312:32:003
1310453991613,1cyclictest0-21swapper/312:00:193
1310453991613,1cyclictest0-21swapper/312:00:003
1310453991613,1cyclictest0-21swapper/310:00:193
1310453991613,1cyclictest0-21swapper/307:50:153
1310453991613,1cyclictest0-21swapper/307:20:223
131045399161,12cyclictest1637662-21chrt11:20:353
131045399161,12cyclictest1605941-21chrt10:59:593
131045399161,12cyclictest1587362-21taskset10:45:123
131045399161,12cyclictest1465685-21chrt09:06:423
131045399161,12cyclictest1414863-21taskset08:25:263
131045399161,12cyclictest1357474-21taskset07:44:553
131045399161,11cyclictest1377052-21taskset08:00:063
131045399160,13cyclictest1714861-21chrt12:25:153
131045399160,13cyclictest1694854-21chrt12:06:513
1310453991513,1cyclictest0-21swapper/310:40:093
1310453991513,1cyclictest0-21swapper/310:10:203
1310453991513,0cyclictest0-21swapper/310:30:463
1310453991512,1cyclictest0-21swapper/310:05:173
1310453991512,1cyclictest0-21swapper/309:50:193
1310453991512,1cyclictest0-21swapper/308:50:163
1310453991512,1cyclictest0-21swapper/308:45:213
1310453991512,1cyclictest0-21swapper/308:38:433
131045399151,12cyclictest1555102-21chrt10:19:193
131045399151,11cyclictest1708297-21taskset12:20:023
131045399151,11cyclictest1701198-21taskset12:11:523
131045399151,11cyclictest1656668-21chrt11:36:023
131045399151,11cyclictest1599481-21chrt10:53:183
131045399151,11cyclictest1567496-21taskset10:25:373
131045399151,11cyclictest1567496-21taskset10:25:373
131045399151,11cyclictest1510690-21taskset09:45:013
131045399151,11cyclictest1504370-21chrt09:40:123
131045399151,11cyclictest1466527-21taskset09:10:153
131045399151,11cyclictest1434133-21taskset08:42:413
131045399151,11cyclictest1363749-21taskset07:45:553
131045399150,12cyclictest1669492-21chrt11:47:283
131045399150,12cyclictest1663118-21chrt11:42:073
131045399150,12cyclictest1638252-21chrt11:25:043
131045399150,12cyclictest1612105-21chrt11:02:233
131045399150,12cyclictest1561174-21taskset10:20:483
15733692141,10sleep01573491-21/usr/sbin/munin10:30:230
1310453991413,0cyclictest0-21swapper/312:35:093
1310453991413,0cyclictest0-21swapper/312:35:093
131045399141,11cyclictest1529448-21taskset09:56:273
131045399140,11cyclictest1497303-21taskset09:30:263
131045399140,11cyclictest1490493-21taskset09:25:213
131045399130,11cyclictest1701898-21taskset12:15:133
307598120,8rtkit-daemon217-21plymouthd08:50:170
307598120,7rtkit-daemon716-21ntpd12:35:171
307598120,7rtkit-daemon716-21ntpd12:35:171
13436572120,8sleep21343768-21awk07:30:242
307598110,7rtkit-daemon1542158-21runrttasks10:06:411
307598110,6rtkit-daemon1683106-21irqcore12:00:161
16382992110,8sleep01638454-21diskstats11:25:140
15581992110,7sleep11560283-21kthreadcore10:20:191
15306352115,3sleep1243-21jbd2/sda2-810:00:191
15069022110,8sleep01508970-21grep09:40:180
14295232113,5sleep21430846-21kthreadcore08:40:172
13964352111,6sleep21396468-21apt-get08:15:122
307598100,6rtkit-daemon1510324-21runrttasks09:43:281
307598100,6rtkit-daemon1374244-21kthreadcore07:55:180
307598100,5rtkit-daemon1310448-21cyclictest10:45:221
307598100,3rtkit-daemon493-21gmain12:16:351
307598100,2rtkit-daemon217-21plymouthd09:21:550
17083212102,4sleep11708343-21apt-get12:20:131
16324912100,7sleep01633395-21cut11:20:170
15939122101,7sleep21593529-21/usr/sbin/munin10:50:172
15303232100,7sleep01530634-21sed10:00:180
14476192100,7sleep11448548-21sshd08:55:191
14091292102,4sleep01409162-21apt-get08:25:120
131045399100,7cyclictest13102982sleep307:10:013
30759890,5rtkit-daemon3267152-21kworker/0:2+kacpid07:32:060
30759890,4rtkit-daemon299-21systemd-journal10:36:441
30759890,4rtkit-daemon1696239-21irqrtprio12:10:171
30759890,4rtkit-daemon1554790-21users10:15:251
30759890,4rtkit-daemon1516439-21/usr/sbin/munin09:45:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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