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2025-09-16 - 02:03
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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
Characteristics of the highest latencies:
System rackcslot4.osadl.org (updated Mon Sep 15, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2815272312269,29sleep00-21swapper/007:07:530
2813402308266,28sleep10-21swapper/107:05:521
28183799131125,4cyclictest382066-21kworker/u8:110:58:260
28183799634,37cyclictest333977-21apt-get09:15:150
125899590,3rtkit-daemon1257-21rtkit-daemon11:15:410
125899550,4rtkit-daemon1257-21rtkit-daemon08:52:521
125899550,3rtkit-daemon1257-21rtkit-daemon11:10:270
28183799532,6cyclictest360487-21apt-get09:50:130
28183799532,6cyclictest360487-21apt-get09:50:130
3482262510,4sleep013-21ksoftirqd/009:33:070
28183799512,6cyclictest383057-21apt-get10:20:170
125899510,4rtkit-daemon1257-21rtkit-daemon09:38:210
28183799501,9cyclictest480941-21ssh12:34:000
125899490,4rtkit-daemon1257-21rtkit-daemon12:21:441
28183799482,5cyclictest457429-21appstreamcli12:00:190
28183799481,9cyclictest389006-21ssh10:27:360
28183799481,10cyclictest436421-21ssh11:31:290
28183799480,7cyclictest365753-21ssh09:55:400
28183799472,6cyclictest342006-21apt-get09:25:140
28183799472,5cyclictest371677-21apt-get10:05:170
28183799471,9cyclictest433232-21ssh11:27:200
28183799471,4cyclictest378910-21apt-get10:15:140
281837994710,20cyclictest329795-21diskmemload11:08:560
125899470,3rtkit-daemon1257-21rtkit-daemon12:28:001
28183799462,7cyclictest338167-40apt-check09:20:030
28183799461,5cyclictest329795-21diskmemload10:50:010
28183799461,10cyclictest398395-21memory10:40:190
28183799461,10cyclictest315107-21ntp_states08:30:220
3156672450,1chrt315666-21sshd08:30:381
28183799451,6cyclictest390330-21apt-get10:30:130
28183799451,5cyclictest453317-21apt-get11:55:130
28183799451,4cyclictest328046-21apt-get09:05:150
28183799442,6cyclictest286721-21munin-run07:20:000
28183799441,5cyclictest474668-21apt-get12:25:150
28183799441,5cyclictest367985-21apt-get10:00:150
28183799441,4cyclictest330072-21apt-get09:10:140
28183799441,10cyclictest312389-21apt-get08:25:120
28183799440,9cyclictest453072-21munin-run11:55:010
125899440,3rtkit-daemon0-21swapper/007:34:221
28183799431,8cyclictest310224-21munin-run08:20:010
28183799431,6cyclictest286895-21apt-get07:20:130
3271022420,3sleep1326076-21/usr/sbin/munin09:00:241
28183799421,8cyclictest329795-21diskmemload10:45:280
28183799420,8cyclictest307991-21sshd08:12:150
28183799420,8cyclictest307991-21sshd08:12:150
28183799411,5cyclictest329795-21diskmemload10:35:470
125899410,6rtkit-daemon287-20systemd-journal08:39:551
125899410,3rtkit-daemon0-21swapper/012:11:421
28183799401,8cyclictest293528-21ntp_states07:35:230
28183799401,6cyclictest329795-21diskmemload12:12:260
28183799401,5cyclictest329795-21diskmemload09:45:300
125899400,3rtkit-daemon0-21swapper/011:22:040
28183799391,8cyclictest329795-21diskmemload12:08:290
28183799391,7cyclictest329795-21diskmemload11:38:430
28183799391,5cyclictest329795-21diskmemload09:44:500
28183799381,8cyclictest329795-21diskmemload12:18:270
28183799370,9cyclictest443663-21/usr/sbin/munin11:40:250
125899370,3rtkit-daemon0-21swapper/009:38:001
28183799361,8cyclictest304540-21/usr/sbin/munin08:05:260
125899360,3rtkit-daemon0-21swapper/112:05:241
125899360,3rtkit-daemon0-21swapper/009:53:321
125899360,3rtkit-daemon0-21swapper/009:53:311
125899350,3rtkit-daemon0-21swapper/108:40:220
125899350,3rtkit-daemon0-21swapper/010:07:091
28183799343,5cyclictest316296-21apt-get08:35:140
125899340,5rtkit-daemon347037-21ssh09:30:371
125899340,4rtkit-daemon1257-21rtkit-daemon11:57:171
125899340,4rtkit-daemon1257-21rtkit-daemon11:50:011
125899340,4rtkit-daemon1257-21rtkit-daemon10:25:491
125899340,4rtkit-daemon1257-21rtkit-daemon07:29:000
125899340,3rtkit-daemon0-21swapper/107:19:571
28183799332,6cyclictest446142-21apt-get11:45:130
28183799330,10cyclictest414787-21ssh11:02:520
125899330,4rtkit-daemon1257-21rtkit-daemon12:17:241
125899330,3rtkit-daemon0-21swapper/011:04:021
125899330,3rtkit-daemon0-21swapper/010:15:101
125899330,3rtkit-daemon0-21swapper/007:46:321
125899330,1rtkit-daemon1257-21rtkit-daemon08:09:451
28183799329,3cyclictest0-21swapper/007:32:090
28183799326,7cyclictest296037-21awk07:40:230
125899320,4rtkit-daemon1257-21rtkit-daemon12:36:340
125899320,4rtkit-daemon1257-21rtkit-daemon08:56:201
125899320,4rtkit-daemon1257-21rtkit-daemon07:58:250
125899320,3rtkit-daemon1257-21rtkit-daemon07:47:270
125899320,3rtkit-daemon0-21swapper/011:14:291
125899320,3rtkit-daemon0-21swapper/007:29:081
28183799311,7cyclictest283763-21python307:15:020
28183799310,3cyclictest378660-21turbostat10:15:000
125899310,3rtkit-daemon0-21swapper/009:56:591
125899310,3rtkit-daemon0-21swapper/008:25:341
125899310,3rtkit-daemon0-21swapper/007:11:011
281839993013,11cyclictest375183-21apt-get10:10:151
125899300,4rtkit-daemon1257-21rtkit-daemon12:39:031
125899300,4rtkit-daemon1257-21rtkit-daemon07:53:561
125899300,3rtkit-daemon0-21swapper/009:45:591
125899300,3rtkit-daemon0-21swapper/009:23:421
125899300,3rtkit-daemon0-21swapper/007:40:381
28183799298,6cyclictest321605-21seq08:46:170
28183799291,7cyclictest470927-21ssh12:20:110
125899290,3rtkit-daemon0-21swapper/109:02:390
125899290,3rtkit-daemon0-21swapper/108:04:560
125899290,3rtkit-daemon0-21swapper/011:16:591
28183999281,8cyclictest430758-21ssh11:24:551
28183799281,4cyclictest324334-21diskstats08:55:160
28183799281,10cyclictest310647-21df_inode08:20:160
125899280,3rtkit-daemon0-21swapper/009:26:421
28183999276,2cyclictest141rcu_preempt08:45:221
28183799271,9cyclictest298903-21diskstats07:50:180
28183799271,8cyclictest322373-21df08:50:160
125899270,1rtkit-daemon1257-21rtkit-daemon10:21:161
28183999261,7cyclictest318584-21fschecks_time08:40:191
28183999260,6cyclictest0-21swapper/111:41:581
28183999259,11cyclictest397170-21kworker/u8:010:45:171
28183999255,18cyclictest0-21swapper/107:38:141
125899250,1rtkit-daemon1257-21rtkit-daemon07:23:401
28183999249,5cyclictest0-21swapper/111:09:491
28183999249,5cyclictest0-21swapper/110:56:491
28183999242,14cyclictest434613-21apt-get11:30:151
281839992415,5cyclictest481398-21python312:35:021
281839992412,7cyclictest63750irq/132-enp2s010:35:131
28183999241,21cyclictest0-21swapper/112:00:101
28183999240,6cyclictest0-21swapper/109:12:041
28183999232,16cyclictest404971-21apt-get10:50:091
28183999222,15cyclictest306512-21apt-get08:10:141
28183999222,15cyclictest306512-21apt-get08:10:131
28183999222,14cyclictest310440-21apt-get08:20:131
28183999221,9cyclictest431076-21apt-get11:25:121
125899220,4rtkit-daemon1257-21rtkit-daemon11:35:431
28183999214,9cyclictest300639-21apt-get07:55:141
28183999212,13cyclictest308466-21apt-get08:15:161
28183999211,8cyclictest355683-21ssh09:42:581
28183999211,18cyclictest446482-21fschecks_time11:45:171
281839992110,7cyclictest26-21ksoftirqd/108:00:151
28183999210,19cyclictest337710-21apt-config09:20:001
28183999205,5cyclictest0-21swapper/110:00:431
28183999200,8cyclictest399451-21ssh10:41:121
28183999200,5cyclictest393816-21grep10:35:001
281839991910,7cyclictest328249-21df09:05:171
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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