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2026-04-10 - 08:27
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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 792 highest latencies:
System rackcslot4.osadl.org (updated Fri Apr 10, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5085372314273,27sleep10-21swapper/119:09:091
5084282297255,28sleep00-21swapper/019:07:590
6817722650,4sleep00-21swapper/000:04:070
179699600,4rtkit-daemon1795-21rtkit-daemon23:35:391
179699570,3rtkit-daemon0-21swapper/021:50:061
179699560,3rtkit-daemon1795-21rtkit-daemon00:27:120
179699540,3rtkit-daemon0-21swapper/000:01:111
179699540,19rtkit-daemon629332-21memory22:50:201
179699530,3rtkit-daemon0-21swapper/021:31:331
179699520,4rtkit-daemon1795-21rtkit-daemon20:31:351
179699510,3rtkit-daemon1795-21rtkit-daemon00:14:541
179699510,23rtkit-daemon508720-21cyclictest20:27:421
179699510,21rtkit-daemon508720-21cyclictest23:44:051
179699480,3rtkit-daemon0-21swapper/122:12:551
179699470,3rtkit-daemon1795-21rtkit-daemon23:29:031
179699470,3rtkit-daemon1795-21rtkit-daemon22:57:490
7015552430,2sleep10-21swapper/100:34:521
5404092410,3sleep00-21swapper/020:25:210
179699400,4rtkit-daemon1795-21rtkit-daemon22:52:260
179699360,4rtkit-daemon1795-21rtkit-daemon21:21:051
179699350,3rtkit-daemon0-21swapper/123:46:011
179699350,3rtkit-daemon0-21swapper/123:20:030
179699350,3rtkit-daemon0-21swapper/120:58:021
179699350,3rtkit-daemon0-21swapper/120:47:181
179699340,4rtkit-daemon1795-21rtkit-daemon20:08:460
179699340,4rtkit-daemon1795-21rtkit-daemon00:19:150
179699340,3rtkit-daemon0-21swapper/119:47:440
179699340,2rtkit-daemon1795-21rtkit-daemon22:30:510
508730993330,2cyclictest641055-21kworker/1:223:09:551
508730993330,2cyclictest18150irq/39-mmc019:50:251
179699330,4rtkit-daemon1795-21rtkit-daemon21:56:201
179699330,4rtkit-daemon1795-21rtkit-daemon00:25:031
179699330,4rtkit-daemon1795-21rtkit-daemon00:23:510
179699330,3rtkit-daemon0-21swapper/123:29:390
179699330,3rtkit-daemon0-21swapper/021:40:531
508726993228,2cyclictest560839-21cat21:15:000
179699320,3rtkit-daemon0-21swapper/121:15:100
179699320,3rtkit-daemon0-21swapper/120:55:350
179699320,27rtkit-daemon788-21systemd-logind22:19:181
508730993127,2cyclictest66950irq/132-enp2s021:10:371
508726993126,4cyclictest600239-1kworker/0:0H23:17:360
179699310,4rtkit-daemon1795-21rtkit-daemon22:49:460
179699310,4rtkit-daemon1795-21rtkit-daemon20:37:550
179699310,3rtkit-daemon1795-21rtkit-daemon23:24:081
179699310,3rtkit-daemon1795-21rtkit-daemon21:18:311
179699310,3rtkit-daemon1795-21rtkit-daemon20:23:431
179699310,3rtkit-daemon1795-21rtkit-daemon19:22:220
50873099300,9cyclictest5939302head22:00:181
50873099300,19cyclictest0-21swapper/122:35:211
179699300,4rtkit-daemon669806-21ssh23:46:280
179699300,4rtkit-daemon1795-21rtkit-daemon20:16:440
179699300,3rtkit-daemon0-21swapper/122:06:550
179699300,3rtkit-daemon0-21swapper/121:57:240
179699300,3rtkit-daemon0-21swapper/121:21:100
179699300,3rtkit-daemon0-21swapper/120:51:050
179699300,3rtkit-daemon0-21swapper/119:35:310
179699300,3rtkit-daemon0-21swapper/023:53:011
179699300,3rtkit-daemon0-21swapper/022:25:161
179699300,3rtkit-daemon0-21swapper/020:00:491
508730992926,2cyclictest18150irq/39-mmc023:10:431
179699290,3rtkit-daemon0-21swapper/121:08:500
179699290,3rtkit-daemon0-21swapper/121:03:170
179699290,3rtkit-daemon0-21swapper/120:13:090
179699290,3rtkit-daemon0-21swapper/119:44:150
508730992817,1cyclictest0-21swapper/119:30:021
508730992813,9cyclictest568095-21apt-get21:25:141
508726992824,3cyclictest66950irq/132-enp2s023:52:230
179699280,3rtkit-daemon0-21swapper/123:30:070
179699280,3rtkit-daemon0-21swapper/023:01:291
179699280,3rtkit-daemon0-21swapper/020:10:391
508726992723,3cyclictest66950irq/132-enp2s022:01:450
50872699271,6cyclictest0-21swapper/023:08:070
50872699270,6cyclictest0-21swapper/023:03:250
179699270,3rtkit-daemon0-21swapper/100:37:140
179699270,3rtkit-daemon0-21swapper/021:45:361
179699270,23rtkit-daemon284-20systemd-journal00:17:431
508730992610,11cyclictest631483-1kworker/u9:222:55:101
179699260,3rtkit-daemon0-21swapper/122:05:391
179699260,3rtkit-daemon0-21swapper/120:41:190
179699260,22rtkit-daemon510644-21sleep19:19:561
50873099259,10cyclictest647097-21apt-get23:15:141
50873099250,6cyclictest0-21swapper/100:07:261
50872699252,17cyclictest621484-21apt-get22:40:120
508726992521,3cyclictest66950irq/132-enp2s023:37:460
508726992514,7cyclictest617925-21apt-get22:35:140
179699250,3rtkit-daemon1795-21rtkit-daemon20:34:590
179699250,1rtkit-daemon1795-21rtkit-daemon20:35:051
50873099242,15cyclictest535739-21apt-get20:15:131
508730992411,8cyclictest657541-21apt-get23:30:131
508730992411,8cyclictest602638-1kworker/u9:122:45:151
179699240,1rtkit-daemon1795-21rtkit-daemon19:47:301
179699240,19rtkit-daemon1795-21rtkit-daemon22:10:310
179699240,17rtkit-daemon66950irq/132-enp2s021:08:561
50873099232,14cyclictest515331-21apt-get19:25:131
508730992316,5cyclictest702921-21memory00:35:181
508730992312,8cyclictest519846-21df_inode19:35:141
50873099231,15cyclictest607476-21apt-get22:20:121
508730992310,7cyclictest553351-21apt-get21:00:141
50873099230,6cyclictest0-21swapper/119:44:471
50872699232,15cyclictest685301-21apt-get00:10:140
508726992320,2cyclictest517201-1kworker/0:2H20:03:330
179699230,1rtkit-daemon1795-21rtkit-daemon19:31:290
50873099222,14cyclictest513383-21apt-get19:20:141
50873099222,13cyclictest527872-21apt-get19:55:131
508730992210,10cyclictest284-20systemd-journal23:59:591
50873099220,6cyclictest0-21swapper/100:23:431
50872699225,4cyclictest557047-21diskmemload21:52:180
50872699223,13cyclictest547483-21apt-get20:45:120
50872699222,15cyclictest603940-21apt-get22:15:130
508726992212,8cyclictest763-21dbus-daemon00:00:010
508726992211,8cyclictest643720-21df_inode23:10:150
508726992210,10cyclictest13-21ksoftirqd/020:20:230
179699220,1rtkit-daemon1795-21rtkit-daemon19:27:000
179699220,1rtkit-daemon1795-21rtkit-daemon19:12:300
5758032210,4sleep1575285-21/usr/sbin/munin21:35:181
50873099212,11cyclictest545532-21apt-get20:40:121
50872699212,13cyclictest527872-21apt-get19:55:130
50872699212,11cyclictest571657-21apt-get21:30:130
508726992117,2cyclictest66950irq/132-enp2s000:34:260
179699210,3rtkit-daemon1795-21rtkit-daemon19:13:331
50873099202,13cyclictest549431-21apt-get20:50:131
50872699202,7cyclictest13-21ksoftirqd/022:26:020
508726992011,5cyclictest557047-21diskmemload21:40:370
508726992010,9cyclictest850-21runrttasks23:44:260
50873099192,12cyclictest533342-21apt-get20:07:531
50873099190,18cyclictest0-21swapper/122:45:001
50872699191,6cyclictest557047-21diskmemload00:05:360
508726991912,4cyclictest575728-21gltestperf21:35:170
50872699191,16cyclictest609161-21ssh22:21:110
50872699191,12cyclictest525920-21apt-get19:50:130
50873099181,3cyclictest607284-1kworker/1:3H22:34:551
50872699183,9cyclictest582247-21apt-get21:45:120
508726991814,2cyclictest568269-21cstates21:25:150
508726991813,3cyclictest511930-21kernelversion19:15:190
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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