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2025-02-19 - 00:30
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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 376 highest latencies:
System rackcslot4.osadl.org (updated Tue Feb 18, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3618852266194,57sleep00-21swapper/007:05:080
3634092261187,58sleep10-21swapper/107:07:331
4897262760,3sleep1489729-21fschecks_count11:00:191
128499620,4rtkit-daemon1283-21rtkit-daemon10:10:181
128499620,4rtkit-daemon1283-21rtkit-daemon10:10:181
4038462491,29sleep0403882-21sh08:50:000
128499440,3rtkit-daemon0-21swapper/110:58:511
363764994213,19cyclictest26-21ksoftirqd/110:35:011
128499420,3rtkit-daemon0-21swapper/112:01:571
128499420,3rtkit-daemon0-21swapper/110:23:511
128499410,3rtkit-daemon0-21swapper/007:32:330
128499370,6rtkit-daemon377530-21unixbench_multi07:40:241
363760993011,3cyclictest13-21ksoftirqd/011:20:240
5349972290,4sleep013-21ksoftirqd/012:05:010
4155002290,2sleep0415649-21awk09:15:240
36376499299,18cyclictest26-21ksoftirqd/112:30:111
36376099297,17cyclictest141rcu_preempt10:45:210
363760992920,2cyclictest3169455-1kworker/u9:109:44:490
128499290,4rtkit-daemon1283-21rtkit-daemon08:09:221
36376099288,5cyclictest0-21swapper/008:09:040
128499280,6rtkit-daemon13-21ksoftirqd/009:00:170
128499280,5rtkit-daemon382188-21apt-get07:55:131
36376499278,5cyclictest26-21ksoftirqd/112:35:241
36376499272,19cyclictest384161-21apt-get08:00:141
36376099278,17cyclictest13-21ksoftirqd/012:05:000
36376099277,6cyclictest13-21ksoftirqd/010:20:010
36376099276,3cyclictest141rcu_preempt12:30:070
36376099276,3cyclictest141rcu_preempt11:50:080
36376099275,4cyclictest13-21ksoftirqd/010:10:170
36376099275,4cyclictest13-21ksoftirqd/010:10:170
36376099274,4cyclictest432485-21cut09:40:000
363760992716,2cyclictest13-21ksoftirqd/010:40:110
128499270,20rtkit-daemon484765-21rm10:53:261
36376499265,19cyclictest1-21systemd10:49:551
36376499264,5cyclictest261ksoftirqd/110:43:001
36376499263,5cyclictest261ksoftirqd/111:59:521
36376499261,16cyclictest141rcu_preempt11:35:011
36376499260,9cyclictest502937-21chrt11:19:571
36376099263,5cyclictest131ksoftirqd/009:49:110
363760992617,2cyclictest529469-21rm11:57:270
363760992611,2cyclictest13-21ksoftirqd/010:30:140
36376499257,3cyclictest141rcu_preempt09:15:241
36376499255,3cyclictest410375-21diskmemload11:47:111
36376499254,3cyclictest141rcu_preempt09:50:101
36376499253,17cyclictest0-21swapper/107:37:041
36376499252,16cyclictest541448-21apt-get12:15:151
36376499252,15cyclictest402111-21apt-get08:45:101
363764992519,4cyclictest26-21ksoftirqd/111:25:011
363764992516,5cyclictest443288-21apt-get09:55:141
36376099254,6cyclictest13-21ksoftirqd/009:15:010
36376099253,3cyclictest141rcu_preempt09:50:210
363760992520,2cyclictest13-21ksoftirqd/008:14:590
363760992512,4cyclictest13-21ksoftirqd/012:25:020
128499250,18rtkit-daemon0-21swapper/007:21:180
4744182240,9sleep00-21swapper/010:39:200
36376499248,3cyclictest26-21ksoftirqd/111:10:101
36376499243,5cyclictest26-21ksoftirqd/108:40:151
36376499243,2cyclictest141rcu_preempt09:50:001
36376499242,15cyclictest418631-21apt-get09:20:151
36376499241,5cyclictest365654-21perf07:15:001
363764992413,3cyclictest26-21ksoftirqd/110:36:261
36376099248,6cyclictest366634-21diskstats07:15:170
36376099248,10cyclictest423499-1kworker/u9:210:25:070
36376099246,3cyclictest141rcu_preempt09:25:000
36376099246,3cyclictest141rcu_preempt08:20:000
36376099245,2cyclictest141rcu_preempt11:06:480
36376099242,3cyclictest141rcu_preempt08:20:030
36376099241,7cyclictest485450-21cron10:59:540
363760992415,7cyclictest380027-21cron07:50:000
363760992415,6cyclictest13-21ksoftirqd/008:53:070
363760992412,7cyclictest474776-1kworker/u9:210:50:080
363760992411,8cyclictest455998-1kworker/u9:011:30:080
128499240,3rtkit-daemon0-21swapper/011:26:000
36376499237,3cyclictest141rcu_preempt10:27:151
36376499234,17cyclictest26-21ksoftirqd/107:30:271
36376499233,3cyclictest141rcu_preempt08:30:141
36376499232,3cyclictest141rcu_preempt09:40:211
36376499232,15cyclictest545162-21apt-get12:20:121
36376499232,15cyclictest388055-21apt-get08:10:131
36376499232,14cyclictest517072-21apt-get11:40:141
36376499232,14cyclictest406011-21apt-get08:55:141
36376499232,14cyclictest392329-21apt-get08:20:141
36376499230,4cyclictest284-20systemd-journal09:30:001
36376499230,20cyclictest261ksoftirqd/111:50:131
36376099237,3cyclictest141rcu_preempt11:10:200
36376099236,4cyclictest141rcu_preempt12:20:120
36376099233,3cyclictest410375-21diskmemload12:15:560
36376099232,3cyclictest141rcu_preempt11:41:380
36376099232,15cyclictest363899-21apt-get07:10:150
36376099230,4cyclictest464390-21python310:25:010
128499230,4rtkit-daemon0-21swapper/112:10:071
128499230,3rtkit-daemon0-21swapper/007:27:070
128499230,16rtkit-daemon0-21swapper/109:30:081
36376499224,2cyclictest141rcu_preempt09:10:201
36376499224,16cyclictest382121-21cat07:55:001
36376499223,2cyclictest141rcu_preempt09:00:121
36376499223,11cyclictest428814-21apt-get09:35:121
36376499223,10cyclictest404066-21apt-get08:50:151
36376499222,3cyclictest141rcu_preempt10:15:191
36376499221,4cyclictest551201-21latency_hist12:30:001
36376499221,3cyclictest448456-21tail10:00:241
36376499221,3cyclictest141rcu_preempt11:26:431
36376099229,6cyclictest141rcu_preempt11:03:350
36376099224,2cyclictest141rcu_preempt11:35:240
36376099224,2cyclictest141rcu_preempt11:15:180
36376099223,3cyclictest141rcu_preempt08:30:010
36376099223,2cyclictest141rcu_preempt12:10:340
36376099223,2cyclictest141rcu_preempt10:00:240
36376099223,14cyclictest380244-21apt-get07:50:170
36376099222,13cyclictest555254-21apt-get12:35:150
36376099221,3cyclictest141rcu_preempt09:30:180
363760992210,3cyclictest13-21ksoftirqd/009:55:260
363760992210,2cyclictest13-21ksoftirqd/008:00:230
128499220,3rtkit-daemon0-21swapper/010:06:130
36376499214,9cyclictest513446-21apt-get11:35:151
36376499214,10cyclictest394290-21apt-get08:25:131
36376499214,10cyclictest366421-21apt-get07:15:141
36376499213,10cyclictest378292-21apt-get07:45:131
36376499213,10cyclictest370343-21apt-get07:25:121
36376499212,3cyclictest141rcu_preempt10:05:001
36376499212,14cyclictest398195-21apt-get08:35:161
36376499212,13cyclictest390007-21apt-get08:15:151
363764992111,5cyclictest26-21ksoftirqd/112:10:011
36376099218,11cyclictest410386-21idleruntime-cro09:10:000
36376099214,15cyclictest523159-21idleruntime-cro11:49:590
36376099212,2cyclictest423207-21ssh09:26:390
363760992116,3cyclictest396921-21head08:30:220
363760992112,7cyclictest406959-21systemctl08:55:240
128499210,3rtkit-daemon0-21swapper/111:05:331
36376499201,17cyclictest410390-21grep09:10:011
36376099209,2cyclictest13-21ksoftirqd/008:40:240
36376099208,2cyclictest13-21ksoftirqd/007:55:370
363760992012,6cyclictest376099-21seq07:39:570
36376099199,2cyclictest13-21ksoftirqd/008:35:180
36376099198,2cyclictest13-21ksoftirqd/007:40:240
36376499181,9cyclictest368398-21apt-get07:20:141
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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