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2026-07-10 - 01:46
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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 rack3slot6.osadl.org (updated Fri Jul 10, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13853210439,49sleep10-21swapper/119:05:271
14856999115,64cyclictest0-21swapper/121:30:111
14856999014,64cyclictest0-21swapper/122:45:131
1485299905,22cyclictest5016-21apt-get20:10:120
1485699896,20cyclictest18954-21apt-get19:20:121
14856998912,61cyclictest0-21swapper/122:55:141
1452528932,44sleep00-21swapper/019:08:280
14856998816,61cyclictest0-21swapper/122:25:131
1485699876,20cyclictest9433-21apt-get23:25:131
14856998715,20cyclictest26192-21diskmemload21:10:091
14856998714,58cyclictest0-21swapper/100:35:221
1485699856,19cyclictest11172-21apt-get23:30:121
14856998514,59cyclictest0-21swapper/123:50:141
1485299857,70cyclictest0-21swapper/019:20:140
1485299856,73cyclictest0-21swapper/000:10:230
1485699849,28cyclictest20832-21apt-key19:25:041
1485699846,21cyclictest15856-21apt-get20:40:121
1485299849,67cyclictest0-21swapper/021:50:140
1485299847,69cyclictest0-21swapper/022:30:150
1485299846,71cyclictest0-21swapper/021:40:130
1485299846,21cyclictest26361-21apt-get21:10:120
1485299845,23cyclictest15278-21apt-get22:10:210
14852998410,67cyclictest0-21swapper/022:40:150
1485699837,24cyclictest28107-21apt-get21:15:151
14856998324,22cyclictest457-21dbus-daemon23:45:051
14856998315,57cyclictest0-21swapper/121:35:121
14856998314,55cyclictest0-21swapper/121:25:171
1485299836,69cyclictest0-21swapper/000:25:160
1485299835,9cyclictest0-21swapper/000:20:260
1485299835,68cyclictest3223-21apt-get20:05:120
1485299834,21cyclictest20562-21apt-get19:25:040
1485699826,21cyclictest23082-21apt-get19:30:241
1485699826,21cyclictest23082-21apt-get19:30:241
14856998215,55cyclictest0-21swapper/119:40:121
14856998214,57cyclictest0-21swapper/122:30:161
1485299828,66cyclictest0-21swapper/020:55:120
1485299827,67cyclictest0-21swapper/000:05:150
1485299826,24cyclictest25123-21apt-get19:35:160
1485299826,24cyclictest25123-21apt-get19:35:160
14852998239,31cyclictest14-21ksoftirqd/000:30:140
1485699816,22cyclictest24574-21apt-get21:05:161
1485699816,22cyclictest24574-21apt-get21:05:161
1485699816,20cyclictest27617-21apt-get00:15:141
14856998125,21cyclictest27674-21cron22:45:001
14856998114,51cyclictest0-21swapper/120:05:121
1485299817,66cyclictest0-21swapper/023:30:130
1485299812,19cyclictest32018-21latency_hist19:55:000
14852998110,63cyclictest0-21swapper/023:00:150
14852998110,63cyclictest0-21swapper/022:00:120
1485699807,24cyclictest1486-21apt-get20:00:141
1485699806,21cyclictest4186-21apt-get23:10:121
1485699804,36cyclictest36-21kcompactd000:10:301
14856998024,18cyclictest1939-21sshd23:02:001
14856998015,53cyclictest0-21swapper/122:10:211
14856998014,54cyclictest0-21swapper/123:20:131
14856998014,54cyclictest0-21swapper/123:20:131
1485299807,66cyclictest0-21swapper/020:20:110
1485299806,61cyclictest27852-21apt-get22:45:130
1485299805,9cyclictest0-21swapper/021:45:210
1485299805,10cyclictest0-21swapper/023:11:490
1485699798,23cyclictest4474-21apt-get21:40:141
1485699798,21cyclictest22833-21apt-get21:00:131
1485699797,18cyclictest10560-21apt-get20:25:221
14856997920,18cyclictest19735-21cut22:20:291
14856997914,56cyclictest0-21swapper/119:35:151
14856997914,56cyclictest0-21swapper/119:35:151
1485299796,64cyclictest0-21swapper/021:30:130
1485299796,56cyclictest20824-21apt-get22:25:130
1485299794,65cyclictest31331-21apt-get22:55:140
1485299792,11cyclictest25974-21cat22:40:000
1485699787,24cyclictest20256-21apt-get23:55:151
1485699787,20cyclictest8518-21apt-get20:20:111
1485699787,20cyclictest17595-21apt-get20:45:141
1485699787,20cyclictest13186-21apt-get22:05:121
1485699786,23cyclictest17326-21apt-get22:15:161
1485699786,18cyclictest12915-21apt-get23:35:151
1485699786,18cyclictest12915-21apt-get23:35:151
1485699785,21cyclictest28675-21apt-get19:45:141
14856997822,19cyclictest21947-21sort20:55:331
1485299787,12cyclictest0-21swapper/000:00:140
1485299784,25cyclictest17190-21apt-get19:15:120
14852997826,46cyclictest16866-21cat20:40:350
14852997825,47cyclictest457-21dbus-daemon20:25:050
14852997822,50cyclictest23094-21tr21:00:180
14852997821,51cyclictest0-21swapper/021:35:170
1485299782,13cyclictest18545-21taskset22:16:270
1485699777,24cyclictest29586-21apt-get22:50:131
1485699777,24cyclictest14729-21apt-get23:40:141
1485699774,42cyclictest20904-21sh20:55:001
1485699772,16cyclictest16676-21aten2.4_r3power19:15:031
1485299777,15cyclictest0-21swapper/023:35:140
1485299777,15cyclictest0-21swapper/023:35:140
1485299776,11cyclictest0-21swapper/023:55:150
14852997722,48cyclictest6884-21aten2.4-expect20:15:160
1485699767,19cyclictest22048-21apt-get00:00:141
1485699766,23cyclictest24299-21apt-get22:35:121
1485699766,19cyclictest23788-21apt-get00:05:171
1485699766,18cyclictest14040-21apt-get20:35:111
1485299769,60cyclictest0-21swapper/023:25:130
1485299766,62cyclictest0-21swapper/023:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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