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2025-12-16 - 08:28
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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 highest latencies:
System rackcslot4.osadl.org (updated Tue Dec 16, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24843682265182,19sleep00-21swapper/019:05:450
24844262251212,25sleep10-21swapper/119:06:221
179699640,3rtkit-daemon1795-21rtkit-daemon21:00:100
179699550,3rtkit-daemon1795-21rtkit-daemon23:15:261
179699540,4rtkit-daemon1795-21rtkit-daemon22:53:310
179699530,4rtkit-daemon1795-21rtkit-daemon00:14:030
179699500,3rtkit-daemon1795-21rtkit-daemon21:48:170
179699490,4rtkit-daemon1795-21rtkit-daemon22:39:360
179699480,3rtkit-daemon1795-21rtkit-daemon21:11:351
179699460,3rtkit-daemon1795-21rtkit-daemon20:43:320
179699460,3rtkit-daemon1795-21rtkit-daemon00:17:160
179699440,4rtkit-daemon1795-21rtkit-daemon23:29:160
179699410,5rtkit-daemon2527544-21memory20:55:201
25133852400,3sleep02513379-21sort20:20:150
179699380,5rtkit-daemon2493028-21chrt19:28:241
179699380,3rtkit-daemon0-21swapper/123:40:201
179699370,5rtkit-daemon1795-21rtkit-daemon19:25:160
179699370,4rtkit-daemon0-21swapper/019:15:031
179699360,3rtkit-daemon0-21swapper/120:35:311
179699360,3rtkit-daemon0-21swapper/019:40:181
179699360,3rtkit-daemon0-21swapper/000:32:451
179699350,3rtkit-daemon0-21swapper/123:31:121
179699350,3rtkit-daemon0-21swapper/120:15:400
179699340,4rtkit-daemon1795-21rtkit-daemon23:38:241
179699340,4rtkit-daemon1795-21rtkit-daemon22:24:330
179699340,3rtkit-daemon0-21swapper/120:29:371
179699340,3rtkit-daemon0-21swapper/120:29:371
179699340,3rtkit-daemon0-21swapper/023:09:460
179699340,3rtkit-daemon0-21swapper/022:15:301
179699330,4rtkit-daemon1795-21rtkit-daemon00:28:160
179699330,3rtkit-daemon1795-21rtkit-daemon23:00:470
179699330,3rtkit-daemon1795-21rtkit-daemon19:54:390
179699330,3rtkit-daemon1795-21rtkit-daemon19:12:150
179699330,3rtkit-daemon0-21swapper/121:27:350
179699330,3rtkit-daemon0-21swapper/100:01:240
179699330,3rtkit-daemon0-21swapper/020:45:100
179699320,4rtkit-daemon1795-21rtkit-daemon23:22:440
179699320,4rtkit-daemon1795-21rtkit-daemon22:14:490
179699320,3rtkit-daemon1795-21rtkit-daemon20:54:291
179699320,3rtkit-daemon1795-21rtkit-daemon20:07:481
179699320,3rtkit-daemon0-21swapper/123:59:430
179699320,3rtkit-daemon0-21swapper/123:54:210
179699320,3rtkit-daemon0-21swapper/022:58:161
179699320,3rtkit-daemon0-21swapper/019:59:451
179699310,3rtkit-daemon0-21swapper/122:45:580
179699310,3rtkit-daemon0-21swapper/022:25:211
179699310,3rtkit-daemon0-21swapper/020:02:021
179699300,4rtkit-daemon0-21swapper/022:41:111
179699300,3rtkit-daemon1795-21rtkit-daemon20:55:330
179699300,3rtkit-daemon1795-21rtkit-daemon00:09:090
179699300,3rtkit-daemon0-21swapper/122:01:330
179699300,3rtkit-daemon0-21swapper/120:36:400
179699300,3rtkit-daemon0-21swapper/120:31:140
179699300,3rtkit-daemon0-21swapper/019:21:011
179699300,3rtkit-daemon0-21swapper/000:18:251
179699300,2rtkit-daemon1795-21rtkit-daemon19:24:250
179699300,25rtkit-daemon1858-21sendmail-mta19:10:261
179699290,3rtkit-daemon1795-21rtkit-daemon22:44:410
179699290,3rtkit-daemon0-21swapper/123:31:400
179699290,3rtkit-daemon0-21swapper/023:08:011
179699290,3rtkit-daemon0-21swapper/020:48:381
179699290,3rtkit-daemon0-21swapper/019:52:351
179699280,3rtkit-daemon1795-21rtkit-daemon21:28:471
179699280,3rtkit-daemon0-21swapper/122:09:400
179699280,3rtkit-daemon0-21swapper/121:52:180
179699280,3rtkit-daemon0-21swapper/121:52:180
179699280,3rtkit-daemon0-21swapper/121:13:450
179699280,3rtkit-daemon0-21swapper/023:10:521
179699280,3rtkit-daemon0-21swapper/022:51:161
179699280,3rtkit-daemon0-21swapper/022:37:561
179699280,3rtkit-daemon0-21swapper/022:22:571
179699280,3rtkit-daemon0-21swapper/020:41:571
179699280,3rtkit-daemon0-21swapper/000:22:431
179699280,3rtkit-daemon0-21swapper/000:08:141
2484890992721,4cyclictest2585340-21grep23:20:141
248489099270,7cyclictest0-21swapper/121:50:391
248489099270,7cyclictest0-21swapper/121:50:381
179699270,3rtkit-daemon0-21swapper/021:49:251
179699270,3rtkit-daemon0-21swapper/021:01:101
179699270,3rtkit-daemon0-21swapper/019:34:301
248489099262,16cyclictest2587276-21apt-get23:25:131
248489099260,7cyclictest0-21swapper/122:08:161
248489099250,6cyclictest0-21swapper/121:56:571
248488699250,8cyclictest2538580-21apt-key21:25:010
248488699250,6cyclictest0-21swapper/023:12:300
248488699250,6cyclictest0-21swapper/020:50:240
179699250,1rtkit-daemon1795-21rtkit-daemon00:32:160
179699240,4rtkit-daemon1795-21rtkit-daemon19:47:551
179699240,1rtkit-daemon1795-21rtkit-daemon23:46:481
179699240,1rtkit-daemon1795-21rtkit-daemon19:15:270
179699240,16rtkit-daemon2601106-21apt-get00:00:041
248489099236,3cyclictest141rcu_preempt23:50:181
248489099232,17cyclictest2511303-40apt-check20:15:121
248489099232,15cyclictest2553312-21apt-get22:00:141
2484890992314,7cyclictest2567070-21sshd22:34:091
248489099230,4cyclictest2578895-21python323:05:001
179699230,4rtkit-daemon1795-21rtkit-daemon21:42:331
179699230,1rtkit-daemon1795-21rtkit-daemon21:19:421
179699230,1rtkit-daemon1795-21rtkit-daemon19:34:530
179699230,15rtkit-daemon0-21swapper/023:00:010
248489099223,17cyclictest0-21swapper/100:10:181
248489099223,12cyclictest2508987-21apt-get20:10:151
248489099223,11cyclictest2615800-21apt-get00:35:141
248489099223,11cyclictest2541109-21apt-get21:30:141
248489099222,15cyclictest2530849-21apt-get21:05:121
248489099222,14cyclictest2599367-21apt-get23:55:151
248489099222,14cyclictest2495340-21apt-get19:35:141
179699220,1rtkit-daemon1795-21rtkit-daemon22:26:160
179699220,1rtkit-daemon1795-21rtkit-daemon20:31:421
179699220,1rtkit-daemon1795-21rtkit-daemon20:01:320
179699220,14rtkit-daemon0-21swapper/020:27:550
179699220,14rtkit-daemon0-21swapper/020:27:550
248489099213,11cyclictest2543051-21apt-get21:35:141
248489099213,10cyclictest2536709-21apt-get21:20:141
248489099212,14cyclictest2513323-21apt-get20:20:151
248489099211,15cyclictest2557218-21apt-get22:10:161
248489099211,14cyclictest2611896-21/usr/sbin/munin00:25:271
248488699219,11cyclictest13-21ksoftirqd/023:45:230
248488699212,13cyclictest2592898-21apt-get23:40:070
248488699211,14cyclictest2583366-21apt-get23:15:150
248488699201,9cyclictest2500710-21sshd19:47:090
179699200,3rtkit-daemon0-21swapper/019:40:050
248488699192,13cyclictest2551199-21appstreamcli21:55:040
248488699192,11cyclictest2545002-21/usr/sbin/munin21:40:290
2484886991914,3cyclictest2559608-21idleruntime22:15:190
2484886991914,3cyclictest2503784-21needreboot19:55:200
2484886991911,6cyclictest2509047-21sort20:10:150
248488699191,13cyclictest2541871-21ntp_states21:30:210
2484886991910,7cyclictest2617438-21taskset00:39:050
179699190,3rtkit-daemon0-21swapper/019:37:070
179699190,13rtkit-daemon0-21swapper/022:33:240
248489099187,6cyclictest2571590-21perl22:45:171
248488699186,11cyclictest13-21ksoftirqd/020:05:290
248488699182,14cyclictest2531130-21fschecks_time21:05:170
248488699180,6cyclictest2591463-21grep23:35:190
248488699179,6cyclictest2610995-21expr00:20:250
2484886991713,2cyclictest2543033-21/usr/sbin/munin21:35:200
2484886991711,4cyclictest893-21snmpd21:18:390
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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