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2025-12-14 - 20:15
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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 376 highest latencies:
System rack3slot6.osadl.org (updated Sun Dec 14, 2025 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
553129349,33sleep10-21swapper/107:05:371
33302780,9sleep126-21ksoftirqd/108:30:181
99852760,8sleep00-21swapper/010:20:260
612499726,57cyclictest24085-21apt-get09:30:130
612499726,57cyclictest24085-21apt-get09:30:130
568527220,42sleep00-21swapper/007:07:150
6130997052,11cyclictest26-21ksoftirqd/108:05:241
6130996849,12cyclictest26-21ksoftirqd/111:20:131
6130996650,11cyclictest26-21ksoftirqd/107:15:141
612499648,15cyclictest0-21swapper/010:25:230
6124996436,24cyclictest14-21ksoftirqd/012:20:310
612499627,49cyclictest0-21swapper/009:45:150
6130996137,18cyclictest26-21ksoftirqd/108:37:421
6130996132,8cyclictest26-21ksoftirqd/111:09:361
6130996036,9cyclictest26-21ksoftirqd/110:41:321
6130996036,18cyclictest26-21ksoftirqd/112:23:301
6124996035,11cyclictest14-21ksoftirqd/011:00:000
6130995936,8cyclictest26-21ksoftirqd/111:26:431
6130995936,8cyclictest26-21ksoftirqd/109:48:181
6130995935,9cyclictest26-21ksoftirqd/109:25:041
6130995935,9cyclictest26-21ksoftirqd/108:20:391
6130995935,18cyclictest26-21ksoftirqd/107:23:581
6124995937,17cyclictest14-21ksoftirqd/009:19:140
6124995937,16cyclictest14-21ksoftirqd/012:08:480
6124995935,18cyclictest14-21ksoftirqd/011:38:100
6124995933,11cyclictest14-21ksoftirqd/010:50:220
6124995933,11cyclictest14-21ksoftirqd/007:30:300
6124995928,17cyclictest14-21ksoftirqd/007:20:200
6124995927,17cyclictest14-21ksoftirqd/011:15:180
6130995836,9cyclictest26-21ksoftirqd/108:19:051
6130995835,9cyclictest26-21ksoftirqd/111:36:491
6130995835,17cyclictest26-21ksoftirqd/110:09:211
6130995834,9cyclictest26-21ksoftirqd/108:26:291
612499587,46cyclictest0-21swapper/011:50:120
6124995838,13cyclictest0-21swapper/012:30:120
6124995836,8cyclictest14-21ksoftirqd/010:49:210
6124995836,8cyclictest14-21ksoftirqd/010:49:210
6124995833,9cyclictest14-21ksoftirqd/009:24:010
6124995828,9cyclictest14-21ksoftirqd/007:26:030
6124995828,9cyclictest14-21ksoftirqd/007:26:030
6124995815,38cyclictest11859-21cat11:55:260
6130995735,8cyclictest26-21ksoftirqd/112:00:471
6130995734,9cyclictest26-21ksoftirqd/111:53:161
6130995734,9cyclictest26-21ksoftirqd/111:14:151
6130995734,9cyclictest26-21ksoftirqd/110:21:131
6130995734,9cyclictest26-21ksoftirqd/107:10:481
6130995734,8cyclictest26-21ksoftirqd/112:31:441
6130995733,9cyclictest26-21ksoftirqd/112:29:441
6130995733,9cyclictest26-21ksoftirqd/110:50:271
6130995733,9cyclictest26-21ksoftirqd/108:51:501
612499578,32cyclictest151rcu_preempt12:17:290
6124995738,14cyclictest13960-21diskstats10:30:310
6124995736,16cyclictest14-21ksoftirqd/007:50:270
6124995735,17cyclictest14-21ksoftirqd/007:16:440
6124995734,9cyclictest14-21ksoftirqd/009:58:240
6124995733,9cyclictest14-21ksoftirqd/008:00:110
6124995716,27cyclictest14-21ksoftirqd/012:02:390
6124995712,39cyclictest250-21systemd-journal08:24:030
6130995634,8cyclictest26-21ksoftirqd/109:40:491
6130995634,8cyclictest26-21ksoftirqd/108:55:091
6130995633,8cyclictest26-21ksoftirqd/112:10:081
6130995633,8cyclictest26-21ksoftirqd/110:59:161
6130995633,8cyclictest26-21ksoftirqd/110:46:411
6130995633,8cyclictest26-21ksoftirqd/110:46:401
6130995632,9cyclictest26-21ksoftirqd/109:57:481
6124995638,12cyclictest0-21swapper/008:15:150
6124995633,9cyclictest14-21ksoftirqd/008:55:470
6124995633,9cyclictest14-21ksoftirqd/007:35:270
6124995633,8cyclictest14-21ksoftirqd/010:35:370
6124995633,17cyclictest14-21ksoftirqd/011:10:340
6124995632,9cyclictest14-21ksoftirqd/008:50:380
612499563,16cyclictest16936-21diskmemload09:10:000
65202558,9sleep16577-21latency11:40:271
6130995533,8cyclictest26-21ksoftirqd/111:58:551
6130995533,8cyclictest26-21ksoftirqd/111:31:061
6130995533,8cyclictest26-21ksoftirqd/110:29:341
6130995532,8cyclictest26-21ksoftirqd/110:38:551
6130995531,9cyclictest26-21ksoftirqd/108:01:381
6124995533,8cyclictest14-21ksoftirqd/009:51:550
6124995532,9cyclictest14-21ksoftirqd/008:29:280
612499553,12cyclictest5539-21apt-get10:10:130
6124995531,10cyclictest14-21ksoftirqd/012:35:310
6124995531,10cyclictest14-21ksoftirqd/012:35:310
6130995432,9cyclictest26-21ksoftirqd/109:35:111
6130995432,8cyclictest26-21ksoftirqd/112:18:371
6130995431,9cyclictest26-21ksoftirqd/109:21:581
6130995431,8cyclictest26-21ksoftirqd/109:51:021
6130995430,10cyclictest26-21ksoftirqd/107:45:481
6130995430,10cyclictest26-21ksoftirqd/107:45:481
6130995419,30cyclictest16761-31su07:36:101
612499547,18cyclictest0-21swapper/010:40:120
612499547,10cyclictest0-21swapper/010:05:220
6124995432,9cyclictest14-21ksoftirqd/007:13:160
6124995431,8cyclictest14-21ksoftirqd/010:16:130
6124995431,8cyclictest14-21ksoftirqd/008:38:310
6124995430,9cyclictest14-21ksoftirqd/012:10:240
6124995419,30cyclictest250-21systemd-journal09:04:110
6130995332,8cyclictest26-21ksoftirqd/109:12:441
6130995331,8cyclictest26-21ksoftirqd/107:34:061
6130995330,8cyclictest26-21ksoftirqd/109:04:261
6130995330,8cyclictest26-21ksoftirqd/107:40:451
6130995329,9cyclictest26-21ksoftirqd/110:02:071
6130995329,9cyclictest26-21ksoftirqd/109:16:411
612499538,16cyclictest0-21swapper/010:00:150
612499533,12cyclictest22642-21python312:25:340
6124995313,35cyclictest19433-21cat07:45:180
6124995313,35cyclictest19433-21cat07:45:180
6124995311,37cyclictest14-21ksoftirqd/008:05:460
613099523,43cyclictest500-21snmpd09:10:021
6130995229,8cyclictest26-21ksoftirqd/107:56:511
6130995228,10cyclictest26-21ksoftirqd/111:17:041
612499528,40cyclictest0-21swapper/009:25:290
6124995236,11cyclictest0-21swapper/011:20:350
612499523,15cyclictest26977-21awk09:35:390
612499523,14cyclictest2759-21tr11:30:170
6124995226,20cyclictest23020-21aten2.4-expect07:55:260
612499522,15cyclictest17112-21apt-get09:10:140
613099515,41cyclictest0-21swapper/107:25:381
613099515,41cyclictest0-21swapper/107:25:381
6130995127,9cyclictest26-21ksoftirqd/109:34:141
6130995127,9cyclictest26-21ksoftirqd/109:34:141
612499519,16cyclictest448-21dbus-daemon11:10:000
612499515,9cyclictest0-21swapper/011:27:140
612499513,13cyclictest28843-21diskstats08:10:220
612499513,12cyclictest7069-21irqstats08:40:250
6124995128,8cyclictest14-21ksoftirqd/007:41:230
6124995115,31cyclictest171rcuc/008:47:230
613099503,41cyclictest5983-21packagekitd10:10:041
6130995027,8cyclictest26-21ksoftirqd/108:47:581
6130995027,8cyclictest26-21ksoftirqd/108:12:591
6124995035,10cyclictest0-21swapper/009:40:140
6124995027,18cyclictest250-21systemd-journal11:05:000
6124995026,9cyclictest14-21ksoftirqd/011:47:520
6130994925,9cyclictest26-21ksoftirqd/112:37:551
6130994925,9cyclictest26-21ksoftirqd/112:37:541
6124994925,18cyclictest250-21systemd-journal11:40:130
613099484,13cyclictest25979-21cron11:05:011
612499482,16cyclictest3178-21aten2.4-expect08:30:170
613099473,14cyclictest16382-21latency_hist12:10:011
6130994724,17cyclictest250-21systemd-journal11:50:001
6130994622,18cyclictest13649-21head10:30:261
6130994525,16cyclictest448-21dbus-daemon08:45:001
6130994515,25cyclictest22436-21cron07:55:001
6130994320,13cyclictest0-21swapper/110:15:141
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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