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2025-10-16 - 00:11
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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 376 highest latencies:
System rackcslot4.osadl.org (updated Wed Oct 15, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17747752272190,28sleep00-21swapper/007:05:090
17761292241199,28sleep10-21swapper/107:05:441
125899690,4rtkit-daemon1257-21rtkit-daemon10:21:280
125899640,3rtkit-daemon1257-21rtkit-daemon10:13:460
125899620,4rtkit-daemon0-21swapper/112:22:590
125899590,4rtkit-daemon1257-21rtkit-daemon10:03:151
177662699572,8cyclictest1945257-21apt-get11:45:131
177662699562,6cyclictest1952639-21apt-get11:55:131
177662699553,7cyclictest1840689-21apt-get09:30:161
177662699552,6cyclictest1963542-21apt-get12:10:141
177662699551,6cyclictest1967304-21apt-get12:15:131
177662699543,7cyclictest1875961-21apt-get10:15:151
177662699541,7cyclictest1926328-21apt-get11:20:151
177662699531,7cyclictest1891297-21apt-get10:35:141
177662699530,10cyclictest1839504-21ssh09:28:161
177662699528,4cyclictest0-21swapper/112:06:411
177662699522,7cyclictest1974618-21apt-get12:25:191
177662699512,7cyclictest1981976-21apt-get12:35:141
177662699512,5cyclictest1829011-21apt-get09:15:161
18121702500,4sleep10-21swapper/108:35:231
177662699503,5cyclictest1795033-21apt-get07:55:131
177662699491,9cyclictest1799271-40apt-check08:05:031
125899490,3rtkit-daemon0-21swapper/109:04:061
19184092480,2sleep10-21swapper/111:10:171
177662699482,5cyclictest0-21swapper/110:52:361
177662699472,9cyclictest1824619-21diskmemload09:43:311
177662699463,6cyclictest1978246-21apt-get12:30:141
177662699452,8cyclictest1824619-21diskmemload11:35:011
177662699452,7cyclictest1824619-21diskmemload11:09:331
177662699451,9cyclictest1824619-21diskmemload10:55:361
177662699451,8cyclictest1824619-21diskmemload10:27:241
177662699443,7cyclictest1941528-21apt-get11:40:141
177662699442,10cyclictest0-21swapper/111:53:181
177662699441,8cyclictest1824619-21diskmemload10:08:321
177662699432,8cyclictest1824619-21diskmemload10:21:131
177662699429,5cyclictest0-21swapper/110:46:001
177662699422,14cyclictest1803280-21apt-get08:15:151
177662699421,5cyclictest1824619-21diskmemload11:34:371
177662699419,5cyclictest0-21swapper/110:42:351
19718172400,3sleep11971816-21sed12:20:211
125899400,3rtkit-daemon0-21swapper/008:14:360
177662699393,7cyclictest1776790-21apt-get07:10:141
177662699392,10cyclictest1787147-21apt-get07:35:121
1776626993911,5cyclictest1790764-21seq07:43:271
125899390,3rtkit-daemon0-21swapper/011:37:050
177662699388,7cyclictest1813075-21cat08:40:111
177662699383,9cyclictest1872120-21apt-get10:10:141
177662699382,6cyclictest1801331-21apt-get08:10:141
177662699381,13cyclictest1807212-21apt-get08:25:161
125899380,5rtkit-daemon1824619-21diskmemload10:39:520
177662699371,9cyclictest1835112-21ssh09:21:501
177662699371,13cyclictest1956383-21apt-get12:00:161
1776626993710,6cyclictest0-21swapper/109:14:121
125899370,5rtkit-daemon1824619-21diskmemload09:12:390
125899370,3rtkit-daemon0-21swapper/011:10:110
177662699363,7cyclictest1791128-21apt-get07:45:111
177662699362,5cyclictest1856261-21apt-get09:50:141
1776626993611,5cyclictest1824619-21diskmemload09:56:111
177662699361,10cyclictest1889911-21ssh10:32:351
125899360,4rtkit-daemon1257-21rtkit-daemon10:56:260
125899360,4rtkit-daemon1257-21rtkit-daemon07:30:191
125899360,4rtkit-daemon0-21swapper/109:32:540
125899350,4rtkit-daemon1846965-21ssh09:37:170
125899350,4rtkit-daemon1257-21rtkit-daemon11:53:340
125899350,4rtkit-daemon1257-21rtkit-daemon11:46:480
125899350,4rtkit-daemon1257-21rtkit-daemon08:09:140
125899350,1rtkit-daemon1257-21rtkit-daemon10:00:070
177662699341,7cyclictest1930188-21apt-get11:25:141
1776621993418,9cyclictest1898987-21apt-get10:45:140
125899340,4rtkit-daemon1257-21rtkit-daemon11:04:330
125899340,4rtkit-daemon1257-21rtkit-daemon07:55:220
125899340,4rtkit-daemon1257-21rtkit-daemon07:12:500
125899340,3rtkit-daemon0-21swapper/108:53:590
125899340,2rtkit-daemon1257-21rtkit-daemon11:44:150
177662699332,11cyclictest0-21swapper/111:17:351
177662699331,10cyclictest1854662-21ssh09:47:201
125899330,4rtkit-daemon1257-21rtkit-daemon10:33:130
125899330,4rtkit-daemon0-21swapper/112:30:350
125899330,3rtkit-daemon0-21swapper/111:28:590
125899330,3rtkit-daemon0-21swapper/109:26:370
125899330,3rtkit-daemon0-21swapper/107:48:490
125899330,3rtkit-daemon0-21swapper/107:15:400
1776621993225,5cyclictest1862726-21sh09:58:030
125899320,3rtkit-daemon0-21swapper/112:07:560
125899320,3rtkit-daemon0-21swapper/110:50:430
125899320,3rtkit-daemon0-21swapper/110:08:170
125899310,3rtkit-daemon0-21swapper/112:17:360
125899310,3rtkit-daemon0-21swapper/109:49:410
125899310,3rtkit-daemon0-21swapper/109:06:190
125899310,3rtkit-daemon0-21swapper/108:45:020
125899310,3rtkit-daemon0-21swapper/108:40:300
1776626993028,1cyclictest0-21swapper/108:45:571
177662699301,9cyclictest1824619-21diskmemload11:00:031
125899300,3rtkit-daemon0-21swapper/109:50:540
125899300,3rtkit-daemon0-21swapper/108:35:300
125899300,3rtkit-daemon0-21swapper/107:42:010
125899290,4rtkit-daemon1257-21rtkit-daemon09:16:270
177662699281,5cyclictest1793664-21ls07:50:231
1776621992813,10cyclictest1805257-21apt-get08:20:140
125899280,4rtkit-daemon1257-21rtkit-daemon08:58:190
125899280,3rtkit-daemon0-21swapper/109:04:330
125899280,1rtkit-daemon1257-21rtkit-daemon08:55:131
125899280,1rtkit-daemon1257-21rtkit-daemon07:27:531
17980862260,4sleep11798090-21timerandwakeup08:00:251
1776621992613,9cyclictest1921916-21apt-get11:15:140
125899250,1rtkit-daemon1257-21rtkit-daemon08:04:550
177662199242,15cyclictest1895119-21apt-get10:40:100
1776621992412,7cyclictest63750irq/132-enp2s009:20:130
125899240,1rtkit-daemon1257-21rtkit-daemon07:21:011
1776621992316,5cyclictest1787682-21cut07:35:190
177662199222,14cyclictest1785201-21apt-get07:30:180
125899220,4rtkit-daemon1257-21rtkit-daemon08:29:400
125899220,3rtkit-daemon1257-21rtkit-daemon12:04:390
125899220,3rtkit-daemon1257-21rtkit-daemon10:16:550
125899220,1rtkit-daemon1257-21rtkit-daemon09:37:571
125899220,14rtkit-daemon0-21swapper/109:08:041
177662199218,3cyclictest141rcu_preempt12:10:250
177662199213,6cyclictest1809160-21apt-get08:30:110
177662199212,13cyclictest1783242-21apt-get07:25:150
177662199211,14cyclictest1793088-21apt-get07:50:180
125899210,13rtkit-daemon0-21swapper/011:20:170
1776626992012,6cyclictest1818598-21sshd08:53:421
177662199202,13cyclictest1781296-21apt-get07:20:150
177662199196,11cyclictest1915854-21kworker/u8:211:30:190
177662199192,10cyclictest1914390-21apt-get11:05:110
1776626991813,3cyclictest1806229-21sendmail_mailtr08:20:251
177662699180,8cyclictest1781080-21perf07:19:591
177662699180,6cyclictest287-20systemd-journal08:35:001
177662199182,11cyclictest1848550-21/usr/sbin/munin09:40:330
1776621991813,3cyclictest1953101-21hwlatdetect11:55:180
1776621991812,4cyclictest1975351-21tail12:25:250
177662199181,12cyclictest1983019-21mailstats12:35:240
1776621991810,6cyclictest1884609-21seq10:25:240
177662199172,8cyclictest1803280-21apt-get08:15:120
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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