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2026-07-04 - 17:03
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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 Jul 04, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44917123520,6sleep1449172-21grep07:05:301
4496782270228,28sleep00-21swapper/007:09:370
5329432750,4sleep00-21swapper/009:52:340
4716942650,11sleep126-21ksoftirqd/108:00:201
6613292640,4sleep10-21swapper/112:37:531
449841995615,23cyclictest538354-21apt-get10:00:120
449841995016,12cyclictest603323-21python311:23:200
179699500,4rtkit-daemon1795-21rtkit-daemon08:16:010
179699490,3rtkit-daemon1795-21rtkit-daemon08:32:250
449841994810,21cyclictest616755-21apt-get11:40:130
179699480,4rtkit-daemon1795-21rtkit-daemon09:05:210
179699480,3rtkit-daemon1795-21rtkit-daemon10:16:540
179699470,4rtkit-daemon1795-21rtkit-daemon11:36:230
449841994612,12cyclictest639662-21apt-get12:10:130
44984199459,10cyclictest631864-21apt-get12:00:130
449841994512,10cyclictest498597-21diskmemload11:15:020
179699450,6rtkit-daemon544708-21ssh10:07:491
44984199439,12cyclictest581049-21apt-get10:55:250
44984199439,11cyclictest502980-21apt-get09:15:130
44984199437,20cyclictest635854-21apt-get12:05:130
449841994313,10cyclictest596104-21ssh11:14:370
449841994312,10cyclictest498597-21diskmemload11:04:170
449841994311,12cyclictest490315-21sshd08:49:430
179699430,4rtkit-daemon0-21swapper/010:19:011
44984199429,21cyclictest481428-21sed08:25:190
44984199429,12cyclictest546019-21apt-get10:10:120
44984199427,11cyclictest518753-21apt-get09:35:110
449841994222,11cyclictest604831-21apt-get11:25:140
449841994211,19cyclictest553856-21grep10:20:130
449841994211,10cyclictest498597-21diskmemload10:50:090
449841994210,14cyclictest654233-21seq12:29:170
179699420,5rtkit-daemon490733-21apt-key08:50:010
44984199419,12cyclictest498872-21apt-get09:10:140
44984199417,11cyclictest624401-21apt-get11:50:130
44984199416,14cyclictest657403-21sshd12:32:430
44984199415,20cyclictest643351-21apt-get12:15:110
449841994111,12cyclictest473131-21ls08:05:140
449841994111,10cyclictest574841-21rm10:46:320
449841994111,10cyclictest518067-21ssh09:34:100
449841994110,13cyclictest563102-21seq10:30:580
44984199407,10cyclictest522592-21apt-get09:40:120
44984199406,11cyclictest526635-21apt-get09:45:130
449841994012,11cyclictest542301-21/usr/sbin/munin10:05:250
449841994011,11cyclictest571406-21taskset10:42:260
449841994010,10cyclictest568706-21taskset10:39:510
44984199398,19cyclictest461375-21sed07:35:230
44984199398,14cyclictest495921-21sed09:00:250
44984199398,13cyclictest475074-21expr08:10:140
44984199397,20cyclictest608602-21apt-get11:30:120
44984199397,11cyclictest650876-21cut12:25:010
44984199397,11cyclictest457423-21plymouth07:25:230
449841993921,10cyclictest464324-21apt-get07:45:130
449841993911,10cyclictest512709-21ssh09:26:390
449841993910,7cyclictest589049-21apt-get11:05:130
44984199389,12cyclictest472171-21sed08:00:250
44984199388,13cyclictest453552-21sed07:15:250
44984199387,14cyclictest464179-21cat07:45:010
449841993811,10cyclictest850-21runrttasks07:20:520
449841993810,11cyclictest459702-21seq07:30:290
449841993810,11cyclictest459702-21seq07:30:290
449841993810,10cyclictest631441-21taskset11:59:450
179699380,3rtkit-daemon0-21swapper/008:59:311
44984199378,14cyclictest534252-21ssh09:55:020
44984199377,10cyclictest508153-21sed09:20:230
44984699361,33cyclictest26-21ksoftirqd/108:20:571
44984199367,11cyclictest485755-21find08:35:220
44984199367,11cyclictest468901-21grep07:55:180
44984199366,13cyclictest493975-21sed08:55:240
44984199365,12cyclictest5604882sleep010:28:380
449841993621,7cyclictest449995-21apt-get07:10:130
449841993610,10cyclictest622063-21taskset11:45:450
449841993610,10cyclictest488321-21seq08:44:140
44984199358,15cyclictest0-21swapper/012:38:130
44984199357,10cyclictest479009-21ls08:20:170
44984199357,10cyclictest466838-21ls07:50:130
179699350,3rtkit-daemon0-21swapper/111:17:091
179699340,4rtkit-daemon1795-21rtkit-daemon12:08:321
179699340,4rtkit-daemon0-21swapper/009:09:321
179699330,3rtkit-daemon0-21swapper/010:25:141
179699330,3rtkit-daemon0-21swapper/009:38:091
179699330,3rtkit-daemon0-21swapper/009:12:431
179699330,3rtkit-daemon0-21swapper/008:30:531
179699320,3rtkit-daemon0-21swapper/010:37:031
179699310,3rtkit-daemon0-21swapper/011:50:191
179699310,3rtkit-daemon0-21swapper/009:49:071
179699310,3rtkit-daemon0-21swapper/008:08:191
44984699300,10cyclictest5888722date11:05:001
179699300,3rtkit-daemon1795-21rtkit-daemon12:14:371
179699300,3rtkit-daemon1795-21rtkit-daemon08:52:481
179699300,3rtkit-daemon1795-21rtkit-daemon07:32:421
179699300,3rtkit-daemon1795-21rtkit-daemon07:32:421
179699300,3rtkit-daemon1795-21rtkit-daemon07:28:411
179699300,3rtkit-daemon0-21swapper/009:56:131
179699300,3rtkit-daemon0-21swapper/008:15:531
449846992927,1cyclictest0-21swapper/107:19:561
449846992912,5cyclictest806-21in:imuxsock11:40:001
179699290,3rtkit-daemon0-21swapper/007:41:231
179699290,20rtkit-daemon1795-21rtkit-daemon11:49:521
44984699282,21cyclictest581006-40apt-check10:55:201
449846992814,12cyclictest26-21ksoftirqd/108:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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