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2025-12-03 - 20:41
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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 03, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41475572280219,47sleep00-21swapper/007:06:130
41475302252211,26sleep10-21swapper/107:05:561
125899690,4rtkit-daemon1257-21rtkit-daemon08:43:210
125899620,4rtkit-daemon1257-21rtkit-daemon08:23:561
125899560,3rtkit-daemon1257-21rtkit-daemon11:08:280
125899520,4rtkit-daemon1257-21rtkit-daemon09:31:450
125899510,4rtkit-daemon1257-21rtkit-daemon12:15:530
125899490,4rtkit-daemon1257-21rtkit-daemon08:56:321
125899480,4rtkit-daemon1257-21rtkit-daemon09:25:551
125899470,4rtkit-daemon1257-21rtkit-daemon07:22:081
41807972440,3sleep00-21swapper/008:30:150
414800199440,8cyclictest13-21ksoftirqd/012:35:000
125899400,3rtkit-daemon0-21swapper/012:29:410
125899400,3rtkit-daemon0-21swapper/009:47:590
125899390,3rtkit-daemon0-21swapper/009:37:090
1046192390,3sleep00-21swapper/011:25:100
414800999388,8cyclictest26-21ksoftirqd/110:15:231
125899380,4rtkit-daemon1257-21rtkit-daemon09:55:110
125899380,3rtkit-daemon0-21swapper/108:18:421
125899380,3rtkit-daemon0-21swapper/010:12:070
125899380,3rtkit-daemon0-21swapper/007:11:010
125899380,1rtkit-daemon1257-21rtkit-daemon11:15:311
414800199362,4cyclictest13-21ksoftirqd/010:29:590
125899360,5rtkit-daemon4150911-21diskstats07:15:171
125899360,5rtkit-daemon1257-21rtkit-daemon09:25:050
125899360,4rtkit-daemon1257-21rtkit-daemon11:38:180
125899360,3rtkit-daemon0-21swapper/110:57:410
125899360,3rtkit-daemon0-21swapper/110:57:400
125899360,3rtkit-daemon0-21swapper/108:25:170
125899360,1rtkit-daemon1257-21rtkit-daemon09:50:160
414800199351,9cyclictest13-21ksoftirqd/011:50:120
125899350,4rtkit-daemon1257-21rtkit-daemon10:15:480
125899350,3rtkit-daemon0-21swapper/012:15:101
125899350,3rtkit-daemon0-21swapper/010:01:280
125899340,4rtkit-daemon1257-21rtkit-daemon09:05:350
125899340,4rtkit-daemon1257-21rtkit-daemon07:32:220
125899340,4rtkit-daemon0-21swapper/009:19:421
125899340,2rtkit-daemon1257-21rtkit-daemon07:38:000
414800199335,6cyclictest13-21ksoftirqd/011:55:250
125899330,5rtkit-daemon44156-21sh10:04:341
125899330,4rtkit-daemon1257-21rtkit-daemon07:28:500
125899330,4rtkit-daemon0-21swapper/108:12:060
125899330,3rtkit-daemon1257-21rtkit-daemon10:31:421
125899330,3rtkit-daemon0-21swapper/009:54:211
4148009993226,4cyclictest107352-21sh11:28:211
4148009993212,4cyclictest26-21ksoftirqd/111:34:021
4148009993212,4cyclictest26-21ksoftirqd/110:57:471
4148009993212,4cyclictest26-21ksoftirqd/110:57:471
414800199320,8cyclictest13-21ksoftirqd/011:45:230
125899320,5rtkit-daemon121389-21ssh11:46:311
125899320,4rtkit-daemon1257-21rtkit-daemon09:24:510
125899320,4rtkit-daemon1257-21rtkit-daemon08:03:511
125899320,4rtkit-daemon0-21swapper/009:20:101
125899320,4rtkit-daemon0-21swapper/009:13:371
125899320,3rtkit-daemon0-21swapper/108:09:390
125899320,3rtkit-daemon0-21swapper/107:57:370
125899320,3rtkit-daemon0-21swapper/012:13:181
125899320,3rtkit-daemon0-21swapper/009:49:401
125899320,3rtkit-daemon0-21swapper/009:42:121
125899320,3rtkit-daemon0-21swapper/008:51:591
414800199310,7cyclictest78583-21apt-get10:50:120
125899310,4rtkit-daemon1257-21rtkit-daemon10:07:540
125899310,4rtkit-daemon1257-21rtkit-daemon09:19:350
125899310,4rtkit-daemon1257-21rtkit-daemon07:24:290
125899310,3rtkit-daemon1257-21rtkit-daemon10:28:001
125899310,3rtkit-daemon0-21swapper/112:03:570
125899310,3rtkit-daemon0-21swapper/108:35:500
125899310,3rtkit-daemon0-21swapper/009:55:331
125899310,3rtkit-daemon0-21swapper/009:05:431
125899310,3rtkit-daemon0-21swapper/007:30:491
4148009993014,10cyclictest4161036-21apt-get07:40:121
414800199307,6cyclictest13-21ksoftirqd/010:46:540
4148001993014,4cyclictest13-21ksoftirqd/011:15:010
125899300,4rtkit-daemon1257-21rtkit-daemon08:35:361
125899300,3rtkit-daemon1257-21rtkit-daemon07:57:571
125899300,2rtkit-daemon0-21swapper/108:17:460
414800999297,4cyclictest26-21ksoftirqd/111:20:581
4148009992916,4cyclictest26-21ksoftirqd/107:40:021
414800999290,18cyclictest0-21swapper/110:50:011
414800199294,3cyclictest141rcu_preempt08:55:000
414800199291,2cyclictest141rcu_preempt12:40:000
414800199290,7cyclictest4192352-21apt-get09:00:130
125899290,3rtkit-daemon1257-21rtkit-daemon12:22:211
125899290,3rtkit-daemon0-21swapper/112:24:120
4148009992825,2cyclictest63750irq/132-enp2s012:06:521
4148009992825,2cyclictest63750irq/132-enp2s010:24:031
4148009992824,2cyclictest1341612sleep112:04:501
4148009992821,5cyclictest26-21ksoftirqd/112:35:001
414800999280,8cyclictest21765-21gpgv09:35:031
414800199288,10cyclictest13-21ksoftirqd/011:02:330
414800199286,6cyclictest13-21ksoftirqd/011:31:180
414800199285,6cyclictest13-21ksoftirqd/011:42:060
414800199285,2cyclictest141rcu_preempt09:41:220
414800199284,8cyclictest13-21ksoftirqd/010:33:140
4148001992812,3cyclictest13-21ksoftirqd/011:24:270
125899280,3rtkit-daemon0-21swapper/008:13:201
125899280,3rtkit-daemon0-21swapper/007:49:071
414800999276,2cyclictest141rcu_preempt10:15:011
414800999275,5cyclictest0-21swapper/111:04:021
4148009992714,4cyclictest26-21ksoftirqd/111:09:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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