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2025-12-13 - 12:16
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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 Sat Dec 13, 2025 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14277502273211,47sleep00-21swapper/019:06:050
14277572263188,61sleep10-21swapper/119:06:111
179699530,4rtkit-daemon1795-21rtkit-daemon19:39:221
179699510,4rtkit-daemon1795-21rtkit-daemon00:25:171
179699480,3rtkit-daemon1795-21rtkit-daemon20:07:501
179699470,4rtkit-daemon1795-21rtkit-daemon00:35:050
179699380,3rtkit-daemon0-21swapper/120:36:461
179699370,3rtkit-daemon0-21swapper/120:22:331
142825299377,9cyclictest1531427-21apt-get23:25:121
179699360,3rtkit-daemon0-21swapper/123:34:560
179699360,3rtkit-daemon0-21swapper/120:31:441
179699360,3rtkit-daemon0-21swapper/119:26:301
179699360,3rtkit-daemon0-21swapper/021:15:270
179699360,3rtkit-daemon0-21swapper/000:32:390
142825299360,12cyclictest1533172-21apt-get23:30:061
179699350,5rtkit-daemon0-21swapper/019:20:311
179699350,4rtkit-daemon1795-21rtkit-daemon23:13:351
179699350,3rtkit-daemon0-21swapper/120:51:261
179699350,3rtkit-daemon0-21swapper/120:15:041
179699350,3rtkit-daemon0-21swapper/119:47:371
142825299355,7cyclictest1529078-21apt-get23:20:121
1428252993532,2cyclictest1414692-21kworker/1:019:30:301
142825299352,14cyclictest1484992-21/usr/sbin/munin21:30:231
142825299350,16cyclictest1465317-21fschecks_time20:40:171
179699340,4rtkit-daemon1795-21rtkit-daemon23:03:251
179699340,3rtkit-daemon1795-21rtkit-daemon19:50:131
179699340,3rtkit-daemon0-21swapper/123:58:291
179699340,3rtkit-daemon0-21swapper/120:58:081
179699340,3rtkit-daemon0-21swapper/120:55:440
179699340,3rtkit-daemon0-21swapper/119:36:570
179699340,3rtkit-daemon0-21swapper/100:06:301
142825299340,15cyclictest1486933-21/usr/sbin/munin21:35:171
142824999341,10cyclictest1482876-21munin-run21:25:000
179699330,3rtkit-daemon0-21swapper/119:30:010
179699330,2rtkit-daemon1795-21rtkit-daemon19:55:231
1428252993331,1cyclictest0-21swapper/119:43:041
179699320,5rtkit-daemon0-21swapper/120:18:030
179699320,4rtkit-daemon1795-21rtkit-daemon23:07:541
179699320,3rtkit-daemon1795-21rtkit-daemon23:46:060
179699320,3rtkit-daemon0-21swapper/123:15:470
1428252993224,6cyclictest1475095-21basename21:05:001
179699310,4rtkit-daemon1795-21rtkit-daemon20:14:071
142825299316,6cyclictest15029112sleep122:12:431
142825299312,11cyclictest1501150-21chrt22:09:401
142825299311,12cyclictest0-21swapper/121:21:501
179699300,3rtkit-daemon1795-21rtkit-daemon23:19:131
179699300,3rtkit-daemon1795-21rtkit-daemon20:27:121
179699300,3rtkit-daemon1795-21rtkit-daemon20:27:111
179699300,3rtkit-daemon0-21swapper/121:29:560
179699300,3rtkit-daemon0-21swapper/023:50:041
179699300,3rtkit-daemon0-21swapper/022:42:431
142825299303,6cyclictest1475277-21apt-get21:05:121
142825299302,10cyclictest1497103-21chrt21:58:061
142825299301,7cyclictest1521244-21sed23:00:011
1428249993027,2cyclictest66950irq/132-enp2s022:39:050
179699290,3rtkit-daemon1795-21rtkit-daemon00:15:031
179699290,3rtkit-daemon0-21swapper/120:54:190
179699290,3rtkit-daemon0-21swapper/119:54:340
142825299294,7cyclictest1448971-21awk20:00:111
1428252992927,1cyclictest0-21swapper/121:17:451
1428252992913,7cyclictest1430874-21apt-get19:15:151
142825299291,12cyclictest1516871-21taskset22:46:451
142825299291,10cyclictest1468789-21latency_hist20:50:011
179699280,4rtkit-daemon0-21swapper/120:08:400
179699280,3rtkit-daemon0-21swapper/123:26:380
179699280,3rtkit-daemon0-21swapper/123:09:060
179699280,3rtkit-daemon0-21swapper/123:01:320
179699280,3rtkit-daemon0-21swapper/119:58:470
179699280,3rtkit-daemon0-21swapper/022:53:581
179699280,3rtkit-daemon0-21swapper/021:48:011
142825299283,7cyclictest1546527-21sed00:00:151
142825299283,6cyclictest1477378-21cstates21:10:151
142825299282,9cyclictest1537376-21sshd23:39:121
142825299282,7cyclictest1509348-21ls22:30:141
142825299282,7cyclictest1493704-21grep21:50:141
142825299282,6cyclictest1503795-21basename22:15:151
179699270,4rtkit-daemon1795-21rtkit-daemon22:03:491
179699270,3rtkit-daemon0-21swapper/120:35:500
179699270,3rtkit-daemon0-21swapper/120:11:170
179699270,22rtkit-daemon1428242-21cyclictest19:43:400
179699270,1rtkit-daemon1795-21rtkit-daemon22:50:090
15259372270,4chrt0-21swapper/023:10:180
142825299275,6cyclictest15069632sleep122:24:161
142825299273,7cyclictest1539836-21sshd23:45:131
142825299272,9cyclictest1507384-21seq22:25:111
1428252992712,7cyclictest1428367-21apt-get19:10:121
142825299271,11cyclictest1560430-21chrt00:36:081
142825299271,11cyclictest1512602-21taskset22:37:141
179699260,3rtkit-daemon0-21swapper/120:22:400
179699260,21rtkit-daemon1430278-21munin-node21:00:110
14782812261,6sleep013-21ksoftirqd/021:10:240
142825299264,6cyclictest14843792sleep121:25:331
1428249992612,7cyclictest1509187-21apt-get22:30:130
179699250,3rtkit-daemon0-21swapper/122:59:480
179699250,3rtkit-daemon0-21swapper/121:36:090
142825299256,9cyclictest26-21ksoftirqd/100:31:111
142825299250,9cyclictest1550930-21cat00:10:211
142824999252,15cyclictest1491266-21apt-get21:45:150
179699240,19rtkit-daemon1795-21rtkit-daemon00:00:420
142825299242,6cyclictest26-21ksoftirqd/121:40:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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