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2025-09-15 - 09:56
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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 Mon Sep 15, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28352012274192,27sleep00-21swapper/019:06:180
28354412258216,27sleep10-21swapper/119:08:511
2835635997773,3cyclictest2924926-21kworker/u8:122:44:571
28995812700,4sleep1251rcuc/121:32:241
125899640,4rtkit-daemon1257-21rtkit-daemon19:35:580
2835634995447,5cyclictest2949364-21fwupd22:44:560
125899520,4rtkit-daemon1257-21rtkit-daemon22:13:160
125899500,4rtkit-daemon1257-21rtkit-daemon00:13:141
125899490,4rtkit-daemon1257-21rtkit-daemon19:28:521
29597512450,5sleep02959717-21cron22:59:590
125899440,9rtkit-daemon0-21swapper/122:22:381
125899430,3rtkit-daemon0-21swapper/122:31:391
28805612400,6sleep0161rcuc/021:00:260
283563499403,7cyclictest13-21ksoftirqd/023:40:000
125899400,4rtkit-daemon0-21swapper/123:56:361
125899400,4rtkit-daemon0-21swapper/122:28:081
125899390,5rtkit-daemon2988534-21df_inode23:40:151
125899390,3rtkit-daemon0-21swapper/023:24:450
29399442380,19sleep02940056-21ntpq22:30:310
125899380,4rtkit-daemon1257-21rtkit-daemon23:33:341
125899380,3rtkit-daemon0-21swapper/100:35:061
125899380,3rtkit-daemon0-21swapper/100:16:571
283563599373,5cyclictest26-21ksoftirqd/119:20:011
125899370,4rtkit-daemon0-21swapper/121:42:161
125899370,3rtkit-daemon0-21swapper/122:19:421
125899360,4rtkit-daemon1257-21rtkit-daemon23:39:421
125899360,3rtkit-daemon0-21swapper/123:46:331
125899360,3rtkit-daemon0-21swapper/123:22:531
283563599353,4cyclictest26-21ksoftirqd/123:05:021
283563599350,17cyclictest0-21swapper/120:20:191
125899350,4rtkit-daemon63750irq/132-enp2s022:52:261
125899350,4rtkit-daemon26-21ksoftirqd/122:51:390
125899350,4rtkit-daemon1257-21rtkit-daemon21:28:411
125899350,3rtkit-daemon0-21swapper/121:39:151
125899350,3rtkit-daemon0-21swapper/023:16:171
125899350,3rtkit-daemon0-21swapper/022:05:380
125899350,3rtkit-daemon0-21swapper/019:45:020
283563599341,9cyclictest29158282/usr/sbin/munin21:55:261
283563599340,7cyclictest2887050-21apt-get21:15:151
125899340,5rtkit-daemon1257-21rtkit-daemon22:29:050
125899340,4rtkit-daemon2904482-21ssh21:40:110
125899340,4rtkit-daemon1257-21rtkit-daemon20:14:321
125899340,4rtkit-daemon1257-21rtkit-daemon19:11:041
125899340,4rtkit-daemon0-21swapper/123:34:520
125899340,3rtkit-daemon1257-21rtkit-daemon23:52:361
125899340,3rtkit-daemon1257-21rtkit-daemon23:08:090
125899340,3rtkit-daemon0-21swapper/121:50:300
283563599330,8cyclictest26-21ksoftirqd/122:45:231
125899330,4rtkit-daemon1257-21rtkit-daemon23:04:290
125899330,3rtkit-daemon1257-21rtkit-daemon23:10:090
125899330,3rtkit-daemon1257-21rtkit-daemon21:05:150
125899330,3rtkit-daemon1257-21rtkit-daemon20:41:120
125899330,3rtkit-daemon1257-21rtkit-daemon00:24:291
125899330,3rtkit-daemon0-21swapper/119:22:391
125899330,3rtkit-daemon0-21swapper/100:34:591
125899320,5rtkit-daemon2933569-21ssh22:21:050
125899320,3rtkit-daemon0-21swapper/121:32:480
125899320,3rtkit-daemon0-21swapper/023:14:581
283563599316,8cyclictest26-21ksoftirqd/122:15:011
125899310,4rtkit-daemon0-21swapper/123:54:100
125899310,4rtkit-daemon0-21swapper/121:16:500
125899310,3rtkit-daemon0-21swapper/123:55:220
125899310,3rtkit-daemon0-21swapper/121:29:150
125899310,3rtkit-daemon0-21swapper/100:22:050
125899310,3rtkit-daemon0-21swapper/019:34:131
283563599303,4cyclictest26-21ksoftirqd/123:05:011
2835635993012,6cyclictest26-21ksoftirqd/122:10:001
283563599300,9cyclictest2942689-21/usr/sbin/munin22:35:111
283563599300,7cyclictest2977971-21apt-get23:25:141
125899300,4rtkit-daemon0-21swapper/123:43:020
125899300,4rtkit-daemon0-21swapper/119:13:390
125899300,3rtkit-daemon0-21swapper/123:29:050
125899300,3rtkit-daemon0-21swapper/122:45:360
125899300,3rtkit-daemon0-21swapper/120:25:180
125899300,3rtkit-daemon0-21swapper/100:13:350
125899300,3rtkit-daemon0-21swapper/021:04:131
125899300,3rtkit-daemon0-21swapper/020:46:231
283563599298,9cyclictest26-21ksoftirqd/120:25:031
283563599295,9cyclictest26-21ksoftirqd/100:25:251
283563599290,8cyclictest26-21ksoftirqd/100:06:151
283563599290,7cyclictest2884282-21/usr/sbin/munin21:10:251
283563499290,7cyclictest2871965-21cut20:35:240
125899290,4rtkit-daemon1257-21rtkit-daemon22:36:240
125899290,3rtkit-daemon0-21swapper/121:37:430
125899290,3rtkit-daemon0-21swapper/121:23:470
125899290,3rtkit-daemon0-21swapper/119:28:460
125899290,3rtkit-daemon0-21swapper/100:39:360
125899290,3rtkit-daemon0-21swapper/020:43:341
125899290,3rtkit-daemon0-21swapper/000:01:151
283563599286,9cyclictest26-21ksoftirqd/121:51:031
283563599286,8cyclictest26-21ksoftirqd/121:49:401
283563599285,3cyclictest141rcu_preempt21:00:011
283563499283,7cyclictest13-21ksoftirqd/019:30:260
125899280,4rtkit-daemon1257-21rtkit-daemon22:02:200
125899280,3rtkit-daemon0-21swapper/021:09:331
283563599277,9cyclictest26-21ksoftirqd/120:00:181
283563599277,8cyclictest26-21ksoftirqd/119:35:261
283563599277,10cyclictest26-21ksoftirqd/120:07:261
283563599276,9cyclictest26-21ksoftirqd/122:57:081
283563499273,8cyclictest13-21ksoftirqd/021:45:260
125899270,3rtkit-daemon0-21swapper/120:57:560
125899270,3rtkit-daemon0-21swapper/119:15:580
283563599266,9cyclictest26-21ksoftirqd/120:18:581
283563599266,9cyclictest26-21ksoftirqd/119:52:031
283563499261,5cyclictest2864027-21python320:20:020
283563499260,9cyclictest2857509-21timerwakeupswit20:00:250
283563599255,5cyclictest26-21ksoftirqd/119:42:471
283563599252,5cyclictest0-21swapper/119:55:161
283563599252,4cyclictest26-21ksoftirqd/121:22:311
283563599252,4cyclictest26-21ksoftirqd/120:30:191
283563599251,9cyclictest26-21ksoftirqd/122:00:341
283563599250,7cyclictest0-21swapper/120:50:131
283563499259,2cyclictest141rcu_preempt00:20:000
2835634992512,8cyclictest63750irq/132-enp2s021:10:150
283563499250,9cyclictest2917968-21cron21:59:590
125899250,20rtkit-daemon26-21ksoftirqd/119:47:581
125899250,20rtkit-daemon0-21swapper/000:25:490
283563599240,7cyclictest0-21swapper/120:35:141
283563499247,3cyclictest141rcu_preempt20:20:170
283563499243,6cyclictest161rcuc/023:15:020
283563499241,8cyclictest828-21runrttasks20:50:210
283563499240,2cyclictest141rcu_preempt00:05:260
283563499223,5cyclictest13-21ksoftirqd/019:20:030
283563499222,15cyclictest13-21ksoftirqd/022:15:120
283563499221,7cyclictest161rcuc/000:00:210
125899220,2rtkit-daemon1257-21rtkit-daemon20:07:390
125899220,1rtkit-daemon1257-21rtkit-daemon19:40:220
125899220,14rtkit-daemon0-21swapper/020:46:160
283563499213,11cyclictest2860276-21apt-get20:10:150
283563499212,4cyclictest13-21ksoftirqd/000:32:280
283563499203,9cyclictest2852447-21apt-get19:50:140
283563499202,11cyclictest2991765-21apt-get23:45:150
2835634991912,5cyclictest13-21ksoftirqd/020:35:000
283563499191,12cyclictest2854394-21apt-get19:55:120
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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