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2025-12-17 - 18:46
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Wed Dec 17, 2025 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29952592319277,26sleep00-21swapper/007:07:370
29952302297178,84sleep10-21swapper/107:07:181
179699520,3rtkit-daemon1795-21rtkit-daemon10:30:400
179699510,4rtkit-daemon1795-21rtkit-daemon07:44:470
179699510,4rtkit-daemon1795-21rtkit-daemon07:15:410
179699510,3rtkit-daemon1795-21rtkit-daemon10:57:461
179699500,4rtkit-daemon1795-21rtkit-daemon11:51:541
179699490,4rtkit-daemon1795-21rtkit-daemon08:39:320
179699480,4rtkit-daemon1795-21rtkit-daemon08:12:151
179699480,3rtkit-daemon1795-21rtkit-daemon12:13:161
179699460,4rtkit-daemon1795-21rtkit-daemon09:06:221
179699450,4rtkit-daemon1795-21rtkit-daemon10:51:401
179699450,3rtkit-daemon1795-21rtkit-daemon12:00:141
179699450,3rtkit-daemon0-21swapper/009:52:520
179699420,5rtkit-daemon3075503-21chrt10:25:380
179699420,3rtkit-daemon1795-21rtkit-daemon08:43:090
179699370,3rtkit-daemon0-21swapper/009:00:330
299560099369,11cyclictest3036602-21apt-get08:50:141
299560099362,9cyclictest3028801-21apt-get08:30:141
179699360,3rtkit-daemon0-21swapper/109:47:161
179699360,3rtkit-daemon0-21swapper/107:33:171
179699350,3rtkit-daemon1795-21rtkit-daemon11:55:111
179699350,3rtkit-daemon1795-21rtkit-daemon09:15:211
179699350,3rtkit-daemon0-21swapper/109:11:091
179699350,3rtkit-daemon0-21swapper/107:19:481
299560099344,9cyclictest3054152-21apt-get09:35:131
299560099343,9cyclictest3026853-21apt-get08:25:131
179699340,4rtkit-daemon1795-21rtkit-daemon11:12:501
179699340,4rtkit-daemon1795-21rtkit-daemon08:22:081
179699340,3rtkit-daemon0-21swapper/112:28:411
179699340,3rtkit-daemon0-21swapper/112:24:321
179699340,3rtkit-daemon0-21swapper/112:16:571
179699340,3rtkit-daemon0-21swapper/111:34:570
179699340,3rtkit-daemon0-21swapper/110:47:191
179699340,3rtkit-daemon0-21swapper/011:46:190
299560099333,8cyclictest3113833-21apt-get12:05:141
179699330,5rtkit-daemon1710-21kerneloops11:48:141
179699330,4rtkit-daemon1795-21rtkit-daemon10:14:510
179699330,3rtkit-daemon0-21swapper/111:55:240
179699320,3rtkit-daemon1795-21rtkit-daemon07:50:551
179699320,3rtkit-daemon0-21swapper/112:29:080
179699320,3rtkit-daemon0-21swapper/110:39:220
179699320,3rtkit-daemon0-21swapper/108:07:540
179699320,3rtkit-daemon0-21swapper/010:32:581
179699310,4rtkit-daemon1795-21rtkit-daemon10:20:310
179699310,4rtkit-daemon1795-21rtkit-daemon09:59:000
179699310,3rtkit-daemon0-21swapper/107:35:450
179699310,3rtkit-daemon0-21swapper/011:28:101
179699310,3rtkit-daemon0-21swapper/010:05:351
179699310,18rtkit-daemon2995588-21cyclictest09:16:170
299560099304,8cyclictest3064152-21appstreamcli10:00:041
2995598993016,3cyclictest13-21ksoftirqd/008:50:010
179699300,4rtkit-daemon1795-21rtkit-daemon07:27:041
179699300,3rtkit-daemon0-21swapper/112:35:390
179699300,3rtkit-daemon0-21swapper/111:10:310
179699300,3rtkit-daemon0-21swapper/109:22:410
299560099292,8cyclictest3015144-21apt-get07:55:141
179699290,4rtkit-daemon1795-21rtkit-daemon08:48:581
179699290,3rtkit-daemon1795-21rtkit-daemon09:44:481
179699290,3rtkit-daemon0-21swapper/112:32:280
179699290,3rtkit-daemon0-21swapper/112:13:310
179699290,3rtkit-daemon0-21swapper/109:29:210
179699290,3rtkit-daemon0-21swapper/109:06:380
179699290,3rtkit-daemon0-21swapper/108:52:280
179699290,3rtkit-daemon0-21swapper/107:52:060
179699290,3rtkit-daemon0-21swapper/107:28:530
179699290,3rtkit-daemon0-21swapper/010:10:081
179699290,3rtkit-daemon0-21swapper/009:53:071
179699290,17rtkit-daemon1795-21rtkit-daemon08:27:030
179699280,3rtkit-daemon1795-21rtkit-daemon09:29:131
179699280,3rtkit-daemon0-21swapper/111:52:310
179699280,3rtkit-daemon0-21swapper/111:00:300
179699270,3rtkit-daemon1795-21rtkit-daemon09:33:411
179699270,3rtkit-daemon0-21swapper/111:16:110
179699270,3rtkit-daemon0-21swapper/111:08:440
179699270,3rtkit-daemon0-21swapper/110:54:070
179699270,3rtkit-daemon0-21swapper/109:36:400
179699270,3rtkit-daemon0-21swapper/108:34:310
179699270,3rtkit-daemon0-21swapper/108:24:140
179699270,3rtkit-daemon0-21swapper/107:24:090
179699270,3rtkit-daemon0-21swapper/010:27:241
179699270,3rtkit-daemon0-21swapper/008:55:541
179699270,3rtkit-daemon0-21swapper/008:40:111
30710302260,23sleep03071065-21/usr/sbin/munin10:15:220
299559899269,4cyclictest763-21dbus-daemon07:45:070
179699260,17rtkit-daemon3123899-21fschecks_time12:30:161
2995600992511,9cyclictest3019048-21apt-get08:05:111
299559899252,8cyclictest13-21ksoftirqd/010:45:060
299560099247,15cyclictest3073989-21latency_hist10:25:001
2995600992417,4cyclictest3008904-21apt-get07:40:141
299560099240,6cyclictest0-21swapper/111:33:021
299560099240,6cyclictest0-21swapper/108:36:461
299559899249,10cyclictest3066379-21apt-get10:05:120
299560099230,6cyclictest0-21swapper/110:15:031
299559899237,2cyclictest141rcu_preempt09:45:120
299559899236,12cyclictest3080039-21apt-get10:40:130
179699230,1rtkit-daemon1795-21rtkit-daemon08:00:361
179699230,1rtkit-daemon1795-21rtkit-daemon08:00:361
179699230,14rtkit-daemon3094076-21apt-get11:15:141
299560099224,16cyclictest3079899-21latency_hist10:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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