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2026-04-24 - 20:38
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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 Fri Apr 24, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18497862266190,27sleep00-21swapper/007:07:160
18500372258183,59sleep10-21swapper/107:09:561
179699590,4rtkit-daemon1795-21rtkit-daemon07:43:320
179699580,4rtkit-daemon1795-21rtkit-daemon09:11:171
179699580,4rtkit-daemon1795-21rtkit-daemon09:11:171
20050692570,4sleep02005067-21unixbench_singl11:25:240
179699530,3rtkit-daemon1795-21rtkit-daemon10:38:311
179699510,4rtkit-daemon1795-21rtkit-daemon11:20:401
179699510,3rtkit-daemon1795-21rtkit-daemon09:34:530
179699500,4rtkit-daemon1795-21rtkit-daemon07:11:121
179699490,4rtkit-daemon1795-21rtkit-daemon08:02:211
179699490,4rtkit-daemon1795-21rtkit-daemon07:51:250
179699460,3rtkit-daemon1795-21rtkit-daemon09:00:381
179699450,4rtkit-daemon1795-21rtkit-daemon11:56:560
18779362440,3sleep10-21swapper/108:15:141
19887812430,2sleep11988782-21cat11:05:141
179699410,5rtkit-daemon1899475-21diskmemload11:44:020
179699390,4rtkit-daemon1899475-21diskmemload10:38:540
179699370,3rtkit-daemon1795-21rtkit-daemon10:50:131
179699370,3rtkit-daemon0-21swapper/111:38:481
179699370,3rtkit-daemon0-21swapper/107:35:190
179699360,5rtkit-daemon1899475-21diskmemload12:30:570
179699360,5rtkit-daemon1795-21rtkit-daemon09:55:100
179699360,4rtkit-daemon1795-21rtkit-daemon12:02:000
179699350,3rtkit-daemon0-21swapper/111:01:380
179699350,3rtkit-daemon0-21swapper/111:00:481
179699340,4rtkit-daemon1795-21rtkit-daemon12:36:510
179699340,3rtkit-daemon0-21swapper/112:23:531
179699340,3rtkit-daemon0-21swapper/112:21:260
179699340,3rtkit-daemon0-21swapper/010:10:521
185031199330,11cyclictest19887822cat11:05:140
179699330,4rtkit-daemon1795-21rtkit-daemon10:43:091
179699330,3rtkit-daemon0-21swapper/108:03:530
179699320,4rtkit-daemon1795-21rtkit-daemon11:30:360
179699320,4rtkit-daemon1795-21rtkit-daemon08:19:520
179699320,3rtkit-daemon0-21swapper/111:39:010
179699320,3rtkit-daemon0-21swapper/111:21:000
179699320,3rtkit-daemon0-21swapper/110:55:440
179699320,3rtkit-daemon0-21swapper/110:42:240
179699320,3rtkit-daemon0-21swapper/109:03:190
179699320,3rtkit-daemon0-21swapper/009:21:541
179699310,4rtkit-daemon1795-21rtkit-daemon10:20:021
179699310,4rtkit-daemon1795-21rtkit-daemon10:17:121
179699310,3rtkit-daemon1795-21rtkit-daemon11:52:411
179699310,3rtkit-daemon1795-21rtkit-daemon09:41:030
179699310,3rtkit-daemon0-21swapper/109:08:070
179699310,3rtkit-daemon0-21swapper/008:43:131
179699300,3rtkit-daemon1795-21rtkit-daemon12:38:451
179699300,3rtkit-daemon1795-21rtkit-daemon08:42:020
179699300,3rtkit-daemon0-21swapper/111:12:360
179699300,3rtkit-daemon0-21swapper/009:35:361
1850319992926,2cyclictest66950irq/132-enp2s011:30:321
1850319992925,2cyclictest1852866-21apt-key07:15:011
179699290,3rtkit-daemon0-21swapper/112:27:020
179699290,3rtkit-daemon0-21swapper/107:16:580
1850319992825,2cyclictest66950irq/132-enp2s012:16:431
1850319992811,11cyclictest1875792-21apt-get08:10:131
179699280,3rtkit-daemon1795-21rtkit-daemon09:27:491
179699280,3rtkit-daemon0-21swapper/008:39:261
1850319992713,9cyclictest2033984-21apt-get12:05:121
185031999270,7cyclictest1998454-21ssh11:17:431
179699270,3rtkit-daemon1795-21rtkit-daemon11:46:080
179699270,3rtkit-daemon0-21swapper/111:54:010
179699270,3rtkit-daemon0-21swapper/108:35:260
179699270,3rtkit-daemon0-21swapper/007:42:561
179699270,23rtkit-daemon892-21thermald07:58:330
179699270,22rtkit-daemon1850302-21cyclictest10:53:580
18802072260,2sleep00-21swapper/008:20:170
179699260,20rtkit-daemon1850302-21cyclictest07:13:380
179699260,1rtkit-daemon1795-21rtkit-daemon12:32:101
179699260,1rtkit-daemon1795-21rtkit-daemon08:50:250
18662312250,2sleep10-21swapper/107:45:151
185031999252,16cyclictest1889489-21apt-get08:45:121
185031999252,16cyclictest1862036-21apt-get07:35:111
1850319992516,7cyclictest1916012-21fschecks_time09:30:151
185031999250,6cyclictest0-21swapper/111:41:221
185031999250,6cyclictest0-21swapper/111:26:371
185031199250,23cyclictest2039366-21ssh12:10:560
179699250,3rtkit-daemon1795-21rtkit-daemon09:47:180
179699250,20rtkit-daemon1850302-21cyclictest10:11:260
179699250,1rtkit-daemon1795-21rtkit-daemon09:38:470
179699250,19rtkit-daemon1850302-21cyclictest12:19:060
185031999249,8cyclictest1891840-21apt-get08:50:191
185031999245,17cyclictest1870234-21tune2fs07:55:161
185031999242,7cyclictest1904188-21apt-get09:15:131
1850319992416,4cyclictest1961996-21apt-get10:30:101
1850319992411,7cyclictest66950irq/132-enp2s010:25:111
185031999241,17cyclictest1867973-21apt-get07:50:101
1850319992410,5cyclictest0-21swapper/110:59:231
185031999240,7cyclictest1895628-21cat09:00:001
185031999240,6cyclictest0-21swapper/109:48:291
185031999240,12cyclictest1861826-21cron07:35:011
179699240,1rtkit-daemon1795-21rtkit-daemon09:07:251
185031999239,5cyclictest0-21swapper/110:47:121
185031999237,14cyclictest0-21swapper/112:25:151
185031999236,7cyclictest1935158-21cat09:55:131
185031999232,8cyclictest2037715-21apt-get12:10:131
185031999232,14cyclictest1857574-21apt-get07:25:131
1850319992312,6cyclictest66950irq/132-enp2s010:00:111
185031999230,6cyclictest0-21swapper/109:42:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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