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2026-08-25 - 08:59
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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 all highest latencies:
System rackcslot4.osadl.org (updated Tue Aug 25, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
564612313278,20sleep00-21swapper/019:05:380
565992282214,53sleep10-21swapper/119:07:081
136599640,3rtkit-daemon1364-21rtkit-daemon22:40:501
136599570,3rtkit-daemon1364-21rtkit-daemon21:05:101
1042452540,6sleep096-21kswapd021:03:200
779992520,4sleep0161rcuc/019:59:590
136599520,4rtkit-daemon1364-21rtkit-daemon23:41:371
136599500,4rtkit-daemon1364-21rtkit-daemon00:23:261
136599500,3rtkit-daemon1364-21rtkit-daemon23:47:411
136599500,17rtkit-daemon1364-21rtkit-daemon23:10:250
136599490,4rtkit-daemon1364-21rtkit-daemon19:31:160
136599480,4rtkit-daemon1364-21rtkit-daemon00:17:300
136599460,4rtkit-daemon1364-21rtkit-daemon21:43:451
136599460,3rtkit-daemon1364-21rtkit-daemon22:01:391
136599460,3rtkit-daemon1364-21rtkit-daemon20:14:191
136599440,3rtkit-daemon1364-21rtkit-daemon22:46:121
136599400,5rtkit-daemon95848-21find20:40:231
136599390,6rtkit-daemon1-21systemd22:50:000
136599390,3rtkit-daemon0-21swapper/000:20:560
136599380,5rtkit-daemon83073-21irqstats20:10:180
136599380,5rtkit-daemon168297-21ps22:35:211
136599380,4rtkit-daemon1364-21rtkit-daemon22:15:171
57031993722,5cyclictest232513-21ssh00:12:170
57031993722,5cyclictest136836-21ssh21:50:430
136599360,3rtkit-daemon0-21swapper/000:27:420
870192350,5sleep086488-21/usr/sbin/munin20:20:190
136599350,3rtkit-daemon0-21swapper/121:16:561
136599350,3rtkit-daemon0-21swapper/121:10:051
136599350,3rtkit-daemon0-21swapper/023:26:291
136599340,4rtkit-daemon1364-21rtkit-daemon22:53:221
136599340,4rtkit-daemon1364-21rtkit-daemon21:45:171
136599340,4rtkit-daemon1364-21rtkit-daemon21:36:391
136599340,3rtkit-daemon0-21swapper/122:19:320
136599340,3rtkit-daemon0-21swapper/121:41:320
57031993319,2cyclictest199973-21ssh23:20:290
57031993310,2cyclictest141rcu_preempt21:30:010
136599330,4rtkit-daemon1364-21rtkit-daemon23:29:370
136599330,4rtkit-daemon1364-21rtkit-daemon20:52:101
136599330,3rtkit-daemon0-21swapper/122:52:240
136599330,3rtkit-daemon0-21swapper/023:52:051
57031993214,11cyclictest124971-21apt-get21:35:130
136599320,4rtkit-daemon1364-21rtkit-daemon23:13:321
136599320,4rtkit-daemon1364-21rtkit-daemon22:31:380
136599320,3rtkit-daemon0-21swapper/120:46:030
136599320,3rtkit-daemon0-21swapper/119:35:520
5703199316,4cyclictest13-21ksoftirqd/022:35:220
136599310,6rtkit-daemon813-21snmpd20:24:461
136599310,5rtkit-daemon1364-21rtkit-daemon20:42:320
136599310,4rtkit-daemon1364-21rtkit-daemon22:24:581
136599310,4rtkit-daemon1364-21rtkit-daemon19:17:240
136599310,3rtkit-daemon1364-21rtkit-daemon23:03:451
136599310,3rtkit-daemon0-21swapper/121:48:330
136599310,3rtkit-daemon0-21swapper/121:10:350
136599310,3rtkit-daemon0-21swapper/019:29:001
5703199305,6cyclictest13-21ksoftirqd/000:05:160
57031993011,5cyclictest13-21ksoftirqd/021:15:140
57031993010,4cyclictest13-21ksoftirqd/020:55:010
5703199300,3cyclictest141rcu_preempt23:40:250
136599300,4rtkit-daemon1364-21rtkit-daemon00:04:330
136599300,3rtkit-daemon1364-21rtkit-daemon22:58:101
136599300,3rtkit-daemon1364-21rtkit-daemon20:33:451
136599300,3rtkit-daemon0-21swapper/100:34:530
136599300,3rtkit-daemon0-21swapper/023:30:281
5704199298,8cyclictest117328-21apt-config21:25:011
57031992913,5cyclictest159157-21ssh22:23:280
136599290,3rtkit-daemon0-21swapper/122:10:090
136599290,3rtkit-daemon0-21swapper/120:34:050
136599290,3rtkit-daemon0-21swapper/119:24:510
136599290,3rtkit-daemon0-21swapper/000:14:041
5703199285,4cyclictest13-21ksoftirqd/022:27:300
57031992812,4cyclictest13-21ksoftirqd/022:58:090
136599280,4rtkit-daemon1364-21rtkit-daemon19:23:171
136599280,3rtkit-daemon0-21swapper/023:24:341
5704199277,7cyclictest281-20systemd-journal19:20:001
5703199278,4cyclictest13-21ksoftirqd/023:54:590
5703199278,4cyclictest13-21ksoftirqd/023:00:240
5703199276,4cyclictest13-21ksoftirqd/023:30:020
5703199275,4cyclictest13-21ksoftirqd/021:55:180
57031992711,5cyclictest13-21ksoftirqd/021:20:130
136599270,3rtkit-daemon0-21swapper/122:06:440
136599270,3rtkit-daemon0-21swapper/019:14:511
136599270,3rtkit-daemon0-21swapper/000:17:361
136599270,22rtkit-daemon797-21urbackupclientb20:02:301
57041992619,5cyclictest26-21ksoftirqd/122:15:011
5704199260,6cyclictest0-21swapper/119:31:571
5703199269,2cyclictest141rcu_preempt23:15:190
5703199269,2cyclictest141rcu_preempt22:01:030
57031992616,8cyclictest13-21ksoftirqd/000:00:010
57031992613,3cyclictest13-21ksoftirqd/020:30:000
136599260,3rtkit-daemon0-21swapper/023:16:441
5704199255,19cyclictest117221-21apt-get21:25:031
5704199251,7cyclictest229838-21cat00:10:021
57041992514,6cyclictest121350-21apt-get21:30:151
5704199250,6cyclictest0-21swapper/123:08:481
5704199250,6cyclictest0-21swapper/121:55:581
5704199250,6cyclictest0-21swapper/100:35:211
5704199250,21cyclictest80014-21python320:05:031
5703199256,4cyclictest13-21ksoftirqd/021:05:280
5703199255,4cyclictest13-21ksoftirqd/019:10:170
5703199254,4cyclictest141rcu_preempt19:50:010
57031992519,5cyclictest13-21ksoftirqd/020:40:010
57031992511,2cyclictest141rcu_preempt21:34:310
57031992510,10cyclictest84522-21apt-get20:15:140
5703199250,6cyclictest0-21swapper/000:37:500
687332240,2sleep168791-21grep19:35:211
57041992411,11cyclictest26-21ksoftirqd/123:57:131
5703199248,2cyclictest141rcu_preempt23:10:000
5703199244,4cyclictest13-21ksoftirqd/022:41:270
5703199243,2cyclictest141rcu_preempt19:40:140
57031992411,2cyclictest141rcu_preempt23:37:470
57031992410,2cyclictest141rcu_preempt23:45:240
136599240,4rtkit-daemon1364-21rtkit-daemon00:04:041
136599240,1rtkit-daemon1364-21rtkit-daemon19:46:281
136599240,15rtkit-daemon0-21swapper/121:03:351
5704199230,5cyclictest84830-21fschecks_time20:15:181
57031992310,6cyclictest100665-21apt-get20:55:130
136599230,1rtkit-daemon1364-21rtkit-daemon19:57:441
5704199224,16cyclictest71845-21cat19:45:011
5704199222,6cyclictest135320-21apt-get21:50:131
5703199229,2cyclictest141rcu_preempt19:50:070
5703199222,2cyclictest141rcu_preempt20:00:180
136599220,1rtkit-daemon1364-21rtkit-daemon22:34:441
5704199218,8cyclictest61750irq/132-enp2s000:25:141
5704199212,17cyclictest243284-21tune2fs00:30:171
5704199212,13cyclictest74287-21apt-get19:50:131
5703199218,3cyclictest13-21ksoftirqd/020:05:030
5703199212,13cyclictest64046-21apt-get19:25:140
57041992015,3cyclictest102451-21perf20:59:591
5704199201,10cyclictest106386-21diskmemload22:25:121
5704199200,8cyclictest94022-21unixbench_multi20:35:251
57041991914,3cyclictest281-20systemd-journal20:25:011
5704199190,9cyclictest210372-21ssh23:36:061
5704199190,9cyclictest147545-21ssh22:06:261
5704199179,6cyclictest96720-21seq20:45:091
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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