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2026-06-14 - 17:21
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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 Sun Jun 14, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18386662319276,29sleep10-21swapper/107:07:081
18386622317275,28sleep00-21swapper/007:07:050
199841121420,4sleep10-21swapper/111:37:541
19993632630,3sleep00-21swapper/011:39:560
179699590,32rtkit-daemon26-21ksoftirqd/109:33:590
1839044995714,11cyclictest2025109-21latency_hist12:15:010
179699520,3rtkit-daemon1795-21rtkit-daemon10:18:501
183904999499,15cyclictest1910736-21apt-get09:40:131
183904999493,28cyclictest2025721-21ssh12:15:061
183904999493,28cyclictest2025721-21ssh12:15:061
1839049994811,13cyclictest1918197-21apt-get09:50:121
20426782470,2sleep00-21swapper/012:38:060
19215102470,4chrt1921486-21/usr/sbin/munin09:55:000
20350402460,3sleep10-21swapper/112:26:561
20194372430,1sleep00-21swapper/012:05:250
19327292430,7sleep01932725-21cron10:09:590
183904499433,9cyclictest1936267-21unin-run10:15:000
1839044994318,9cyclictest1952318-21hwlatdetect10:35:160
179699430,4rtkit-daemon1795-21rtkit-daemon08:49:371
179699430,4rtkit-daemon0-21swapper/012:20:110
183904499428,10cyclictest1887956-21diskmemload11:46:210
183904499425,21cyclictest1892080-21apt-get09:15:130
183904499424,22cyclictest2013936-21apt-get12:00:080
183904499417,11cyclictest1887956-21diskmemload10:23:540
183904499415,21cyclictest1844275-21apt-get07:20:140
183904499415,13cyclictest1962904-21apt-get10:50:120
183904499414,21cyclictest2036610-21apt-get12:30:090
183904499414,21cyclictest1879718-21apt-get08:50:060
183904999404,13cyclictest1927126-21ssh10:00:321
183904999403,12cyclictest1980982-21apt-get11:15:111
1839049994014,8cyclictest1942267-21sh10:21:501
1839049994012,8cyclictest1954394-21sh10:38:071
183904499407,20cyclictest1978941-21ssh11:10:350
183904499407,18cyclictest1887956-21diskmemload09:13:290
183904499407,10cyclictest1887956-21diskmemload11:56:320
183904499405,11cyclictest1887956-21diskmemload10:30:150
183904999395,13cyclictest1875399-21runrttasks08:35:531
1839049993913,9cyclictest1976765-21sh11:08:551
183904499398,18cyclictest1982390-21ssh11:15:320
183904499397,21cyclictest1927269-21ssh10:00:530
183904499397,20cyclictest1958725-21ssh10:44:170
183904499397,17cyclictest1887956-21diskmemload10:48:220
183904499396,13cyclictest1937947-21sh10:15:340
183904499396,11cyclictest1887956-21diskmemload11:05:240
183904499395,18cyclictest1887956-21diskmemload09:45:220
183904499394,20cyclictest1846220-21apt-get07:25:130
183904499393,21cyclictest1921738-21apt-get09:55:130
183904499393,21cyclictest1861715-21apt-get08:05:100
183904499393,13cyclictest1991914-21apt-get11:30:110
183904499393,12cyclictest1999703-21apt-get11:40:110
183904499391,22cyclictest2025104-21apt-get12:15:060
183904499391,22cyclictest2025104-21apt-get12:15:060
179699390,3rtkit-daemon0-21swapper/012:29:100
183904999382,11cyclictest1984649-21apt-get11:20:131
183904999382,11cyclictest1895906-21apt-get09:20:131
1839049993813,9cyclictest1906454-21sh09:33:421
183904999381,12cyclictest1955871-21apt-get10:40:141
1839049993811,14cyclictest1892080-21apt-get09:15:131
183904499387,19cyclictest1991612-21ssh11:29:520
183904499387,13cyclictest1968357-21seq10:56:210
183904499387,10cyclictest1884477-21/usr/sbin/munin09:00:160
183904499386,19cyclictest1973276-21taskset11:04:290
183904499386,18cyclictest1887956-21diskmemload09:40:420
183904499385,15cyclictest1872541-21/usr/sbin/munin08:30:190
183904499382,9cyclictest1841531-21munin-run07:15:000
1839044993815,8cyclictest850-21runrttasks07:50:440
1839044993815,8cyclictest850-21runrttasks07:50:440
1839044993812,8cyclictest1986623-21sh11:21:420
1839044993810,10cyclictest1876024-21apt08:40:110
183904999375,13cyclictest1885610-21seq09:00:581
183904999375,10cyclictest1909928-21chrt09:38:371
183904999374,11cyclictest850-21runrttasks07:21:541
183904999372,11cyclictest2018084-21apt-get12:05:111
183904999372,11cyclictest1929472-21apt-get10:05:161
183904999372,10cyclictest2010583-21apt-get11:55:131
183904499376,12cyclictest1879382-21sshd08:46:340
183904499374,13cyclictest1907296-21apt-get09:35:130
183904499373,19cyclictest2006858-21apt-get11:50:130
183904499373,13cyclictest1943969-21apt-config10:25:010
183904499373,10cyclictest1852113-21sed07:40:010
183904499372,20cyclictest1899364-21apt-get09:25:140
179699370,4rtkit-daemon0-21swapper/108:39:100
183904999364,12cyclictest2038491-21sh12:31:371
183904999360,14cyclictest1867379-21cat08:15:231
183904999360,11cyclictest1841362-40unattended-upgr07:13:521
183904499367,16cyclictest1887956-21diskmemload09:21:440
183904499366,14cyclictest1854873-21/usr/sbin/munin07:45:220
183904499366,10cyclictest1857972-21taskset07:55:050
183904499365,11cyclictest1860420-21/usr/sbin/munin08:00:190
183904499362,19cyclictest1868201-21apt-get08:20:110
20021752350,5sleep126-21ksoftirqd/111:42:561
183904999355,10cyclictest1965331-21seq10:52:501
183904999354,12cyclictest1949922-21sh10:32:171
183904999353,12cyclictest1924279-21sh09:58:201
183904999352,11cyclictest2032499-21sh12:24:311
1839049993511,8cyclictest0-21swapper/109:27:291
183904499356,18cyclictest1871532-21taskset08:26:160
1839044993510,9cyclictest850-21runrttasks07:17:430
183904999347,6cyclictest1960021-21ssh10:45:201
183904999343,11cyclictest1993049-21/usr/sbin/munin11:30:221
183904999343,10cyclictest1988350-21sshd11:25:101
183904999342,12cyclictest1860752-21awk08:00:241
183904999342,12cyclictest1856823-21ntpq07:50:211
183904999342,12cyclictest1856823-21ntpq07:50:211
183904999340,9cyclictest2013936-21apt-get12:00:021
183904499345,11cyclictest1867564-21taskset08:15:460
183904499344,11cyclictest1852311-21ls07:40:150
183904499342,9cyclictest1884186-21cat09:00:010
183904999334,9cyclictest1916931-21sh09:47:571
183904999334,11cyclictest2042759-21seq12:38:161
183904999332,12cyclictest0-21swapper/111:04:231
183904999332,11cyclictest1978627-21grep11:10:221
183904999332,11cyclictest1876804-21awk08:40:211
1839049993317,7cyclictest1886203-21apt-get09:05:141
183904999331,12cyclictest1854881-21awk07:45:221
183904999331,12cyclictest0-21swapper/112:13:281
183904499337,10cyclictest1-21systemd09:10:000
1839044993314,11cyclictest1848174-21apt-get07:30:140
179699330,4rtkit-daemon1795-21rtkit-daemon07:55:471
1839049993218,7cyclictest1864279-21apt-get08:10:141
1839049993213,10cyclictest1862331-21apt-get08:05:161
183904999320,13cyclictest0-21swapper/108:30:251
183904999320,13cyclictest0-21swapper/108:26:551
183904999320,12cyclictest0-21swapper/111:48:321
183904499323,10cyclictest1864430-21cstates08:10:150
183904999310,13cyclictest0-21swapper/110:55:251
183904999310,13cyclictest0-21swapper/110:28:091
183904999310,12cyclictest0-21swapper/110:14:331
183904999310,12cyclictest0-21swapper/109:10:231
183904999310,10cyclictest1847139-21ps07:25:231
183904999302,13cyclictest0-21swapper/108:56:351
183904999300,12cyclictest0-21swapper/111:54:381
183904999290,12cyclictest0-21swapper/108:20:161
179699290,9rtkit-daemon893-21snmpd07:31:381
1839049992811,12cyclictest1851625-21file07:37:181
1839049992616,6cyclictest1880155-21cnf-update-db08:50:031
1839049992611,10cyclictest1842299-21apt-get07:15:131
183904999243,3cyclictest26-21ksoftirqd/107:40:011
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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