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2025-09-03 - 00:29
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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 Tue Sep 02, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8930712327261,51sleep10-21swapper/107:05:401
8933282294214,25sleep00-21swapper/007:08:250
89357699186180,4cyclictest938121-21kworker/u8:009:24:460
125899680,5rtkit-daemon1257-21rtkit-daemon07:54:590
10584242590,4sleep10-21swapper/111:45:141
125899520,4rtkit-daemon1257-21rtkit-daemon11:50:040
125899510,4rtkit-daemon1257-21rtkit-daemon09:09:371
125899510,4rtkit-daemon1257-21rtkit-daemon08:50:090
125899510,4rtkit-daemon1257-21rtkit-daemon08:01:341
125899510,4rtkit-daemon1257-21rtkit-daemon07:59:491
125899480,4rtkit-daemon1257-21rtkit-daemon10:45:170
125899470,4rtkit-daemon1257-21rtkit-daemon10:30:450
10719342430,5sleep10-21swapper/112:04:481
125899400,3rtkit-daemon0-21swapper/109:14:141
125899400,1rtkit-daemon1257-21rtkit-daemon12:14:070
125899390,6rtkit-daemon1257-21rtkit-daemon12:26:381
125899380,4rtkit-daemon1257-21rtkit-daemon07:15:101
10536622380,1sleep10-21swapper/111:37:371
125899370,5rtkit-daemon849-21snmpd09:06:300
125899370,5rtkit-daemon1081098-21ssh12:16:561
125899370,4rtkit-daemon1257-21rtkit-daemon11:20:261
125899370,3rtkit-daemon0-21swapper/111:32:121
125899370,3rtkit-daemon0-21swapper/108:06:221
125899370,3rtkit-daemon0-21swapper/011:00:301
125899370,3rtkit-daemon0-21swapper/008:19:560
125899360,3rtkit-daemon0-21swapper/112:24:371
125899360,3rtkit-daemon0-21swapper/111:34:310
125899350,4rtkit-daemon1257-21rtkit-daemon12:00:280
125899350,4rtkit-daemon1257-21rtkit-daemon08:48:170
125899350,3rtkit-daemon0-21swapper/110:00:561
125899350,3rtkit-daemon0-21swapper/107:17:550
125899350,3rtkit-daemon0-21swapper/010:25:580
125899350,3rtkit-daemon0-21swapper/008:15:071
125899340,7rtkit-daemon915806-21chrt08:00:210
125899340,3rtkit-daemon0-21swapper/111:07:320
125899340,3rtkit-daemon0-21swapper/107:10:310
125899340,3rtkit-daemon0-21swapper/010:47:141
125899340,3rtkit-daemon0-21swapper/008:34:441
125899330,5rtkit-daemon1257-21rtkit-daemon08:11:560
125899330,4rtkit-daemon1257-21rtkit-daemon08:42:180
125899330,3rtkit-daemon1257-21rtkit-daemon11:14:031
125899330,3rtkit-daemon0-21swapper/011:59:171
125899330,3rtkit-daemon0-21swapper/009:59:361
125899330,3rtkit-daemon0-21swapper/009:31:581
125899330,3rtkit-daemon0-21swapper/007:26:161
125899330,2rtkit-daemon1257-21rtkit-daemon08:20:300
10133112330,2sleep10-21swapper/110:44:421
125899320,4rtkit-daemon1257-21rtkit-daemon12:38:350
125899320,4rtkit-daemon1257-21rtkit-daemon12:32:350
125899320,3rtkit-daemon0-21swapper/112:23:290
125899320,3rtkit-daemon0-21swapper/112:19:510
125899320,3rtkit-daemon0-21swapper/111:15:590
125899320,3rtkit-daemon0-21swapper/109:30:460
125899320,3rtkit-daemon0-21swapper/011:52:331
125899320,3rtkit-daemon0-21swapper/009:01:031
125899320,3rtkit-daemon0-21swapper/008:26:551
125899320,3rtkit-daemon0-21swapper/008:12:371
125899310,5rtkit-daemon1263-21sendmail-mta07:41:400
125899310,4rtkit-daemon1257-21rtkit-daemon11:03:590
125899310,3rtkit-daemon1257-21rtkit-daemon09:35:310
125899310,3rtkit-daemon0-21swapper/111:13:240
125899310,3rtkit-daemon0-21swapper/012:14:281
125899300,3rtkit-daemon1257-21rtkit-daemon09:50:261
125899300,3rtkit-daemon0-21swapper/111:38:100
89358199294,3cyclictest26-21ksoftirqd/112:31:161
893581992913,10cyclictest898660-21apt-get07:20:151
893581992912,11cyclictest902564-21apt-get07:30:131
893581992912,10cyclictest946640-21apt-get09:15:141
125899290,4rtkit-daemon1257-21rtkit-daemon08:54:521
125899280,5rtkit-daemon849-21snmpd09:04:030
125899280,4rtkit-daemon1257-21rtkit-daemon11:28:410
125899280,3rtkit-daemon0-21swapper/008:47:051
125899280,24rtkit-daemon849-21snmpd08:59:031
89358199277,4cyclictest26-21ksoftirqd/112:09:281
89358199271,12cyclictest26-21ksoftirqd/109:45:151
893576992714,8cyclictest942483-21diskmemload09:13:490
893576992713,9cyclictest1021078-21apt-get10:55:140
125899270,3rtkit-daemon1257-21rtkit-daemon07:50:591
125899270,3rtkit-daemon0-21swapper/112:28:440
125899270,3rtkit-daemon0-21swapper/011:42:491
89358199268,11cyclictest1093071-21apt-get12:35:151
893581992613,8cyclictest63750irq/132-enp2s010:30:151
89358199260,6cyclictest0-21swapper/110:50:561
893576992613,8cyclictest960653-1kworker/u9:109:40:140
125899260,3rtkit-daemon1257-21rtkit-daemon10:39:331
125899260,21rtkit-daemon893571-21cyclictest08:42:261
125899260,1rtkit-daemon1257-21rtkit-daemon11:41:540
125899260,1rtkit-daemon1257-21rtkit-daemon10:00:190
125899260,1rtkit-daemon1257-21rtkit-daemon09:59:080
125899260,1rtkit-daemon1257-21rtkit-daemon08:55:260
89358199250,7cyclictest1000981-21ssh10:27:001
89358199248,10cyclictest987804-21apt-get10:10:141
89358199244,4cyclictest26-21ksoftirqd/109:22:401
89358199242,15cyclictest928987-21apt-get08:35:111
89358199242,14cyclictest1021078-21apt-get10:55:121
893581992411,3cyclictest26-21ksoftirqd/107:50:011
89358199240,6cyclictest0-21swapper/107:40:171
125899240,20rtkit-daemon893571-21cyclictest07:46:340
125899240,1rtkit-daemon1257-21rtkit-daemon10:10:520
89358199233,1cyclictest141rcu_preempt09:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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