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2024-09-08 - 18:03
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Sun Sep 08, 2024 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
381216991711,0cyclictest0-21swapper/309:30:013
381216991212,0cyclictest0-21swapper/310:05:123
38121699120,11cyclictest0-21swapper/311:50:123
38121699120,11cyclictest0-21swapper/310:30:113
38121699120,11cyclictest0-21swapper/308:15:113
381216991110,1cyclictest0-21swapper/312:05:113
38121699110,10cyclictest0-21swapper/310:35:183
38121699110,10cyclictest0-21swapper/308:45:153
38121699110,0cyclictest0-21swapper/312:27:243
38121699110,0cyclictest0-21swapper/310:21:353
38121699110,0cyclictest0-21swapper/310:00:123
38121699110,0cyclictest0-21swapper/309:55:123
38121699110,0cyclictest0-21swapper/308:55:193
38121699110,0cyclictest0-21swapper/308:30:013
38121699110,0cyclictest0-21swapper/308:10:123
38121699110,0cyclictest0-21swapper/307:55:113
38121699110,0cyclictest0-21swapper/307:16:063
381216991010,0cyclictest0-21swapper/311:20:123
381216991010,0cyclictest0-21swapper/309:00:123
381216991010,0cyclictest0-21swapper/308:05:243
38121699100,0cyclictest0-21swapper/309:20:013
3812169999,0cyclictest0-21swapper/312:10:123
3812169999,0cyclictest0-21swapper/310:15:133
3812169990,9cyclictest0-21swapper/307:40:003
3812169988,0cyclictest0-21swapper/311:55:123
3812169988,0cyclictest0-21swapper/311:30:133
3812169988,0cyclictest0-21swapper/311:00:133
3812169988,0cyclictest0-21swapper/309:50:113
3812169987,0cyclictest0-21swapper/311:45:113
3812169980,8cyclictest0-21swapper/312:05:023
3812169980,0cyclictest0-21swapper/312:35:193
3812169980,0cyclictest0-21swapper/311:26:373
3812169977,0cyclictest0-21swapper/310:25:133
3812169977,0cyclictest0-21swapper/309:20:243
3812169970,7cyclictest0-21swapper/310:45:143
3812169970,0cyclictest0-21swapper/311:13:513
3812169970,0cyclictest0-21swapper/311:05:543
3812169966,0cyclictest0-21swapper/312:25:013
3812169966,0cyclictest0-21swapper/311:40:323
3812169966,0cyclictest0-21swapper/310:55:173
3812169966,0cyclictest0-21swapper/309:45:123
3812169966,0cyclictest0-21swapper/309:45:113
3812169966,0cyclictest0-21swapper/309:45:013
3812169966,0cyclictest0-21swapper/309:34:413
3812169966,0cyclictest0-21swapper/309:10:203
3812169960,6cyclictest0-21swapper/310:40:133
3812169960,5cyclictest0-21swapper/307:10:103
380191261,4sleep30-21swapper/307:05:183
3812169955,0cyclictest0-21swapper/311:15:123
3812169955,0cyclictest0-21swapper/309:37:423
3812169953,2cyclictest418708-21turbostat08:45:013
3812169950,4cyclictest0-21swapper/308:25:143
3812169950,4cyclictest0-21swapper/307:40:133
380782251,3sleep2701-21snmpd07:06:222
481411240,4sleep00-21swapper/011:11:090
471528240,2sleep0471554-21apt-get10:50:120
3812169944,0cyclictest0-21swapper/312:32:413
3812169944,0cyclictest0-21swapper/308:50:153
3812169944,0cyclictest0-21swapper/308:02:443
3812169944,0cyclictest0-21swapper/307:50:123
3812169944,0cyclictest0-21swapper/307:45:233
3812169944,0cyclictest0-21swapper/307:25:113
3812169943,0cyclictest0-21swapper/310:50:113
3812169940,4cyclictest0-21swapper/310:10:113
3812169940,3cyclictest0-21swapper/311:35:163
3812169940,2cyclictest0-21swapper/308:20:123
3812169940,0cyclictest0-21swapper/312:15:123
3812169940,0cyclictest0-21swapper/309:05:183
380912241,2sleep00-21swapper/007:08:040
379394241,1sleep10-21swapper/107:05:121
492991230,1sleep2493019-21apt-get11:40:122
488116230,0sleep2488120-21ssh11:29:082
486532230,1sleep1486794-21df_inode11:25:141
475776230,1sleep0475802-21apt-get11:00:120
458829230,1sleep20-21swapper/210:20:122
444606230,1sleep1444777-21ntp_states09:45:171
444606230,1sleep1444777-21ntp_states09:45:171
441875230,1sleep0441905-21apt-get09:40:120
3812169933,0cyclictest0-21swapper/308:35:143
3812169930,2cyclictest0-21swapper/307:20:123
515976220,1sleep2515978-21ssh12:34:322
513614220,1sleep01739843-21systemd-journal12:27:250
511798220,1sleep0511802-21cron12:25:010
510847220,1sleep1511019-21cat12:20:171
505692220,1sleep00-21swapper/012:10:120
503323220,1sleep1503345-21munin-run12:05:011
492421220,1sleep00-21swapper/011:39:460
482906220,1sleep10-21swapper/111:15:181
469473220,1sleep00-21swapper/010:45:110
462709220,0sleep00-21swapper/010:29:140
459746220,1sleep1459916-21sed10:20:191
454713220,1sleep0454997-21df10:10:130
452650220,1sleep1452897-21diskstats10:05:141
443973220,0sleep00-21swapper/009:45:040
443973220,0sleep00-21swapper/009:45:040
443736220,1sleep1443882-21cat09:45:011
437542220,1sleep10-21swapper/109:30:161
437470220,0sleep00-21swapper/009:30:150
434668220,1sleep2434893-21date09:25:022
424862220,1sleep0425079-21tr09:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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