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2026-09-03 - 16:03
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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 Thu Sep 03, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17916972308273,19sleep00-21swapper/007:05:570
17918642272214,43sleep10-21swapper/107:07:461
185440521080,3sleep10-21swapper/109:25:241
19751132600,2sleep10-21swapper/112:14:191
1792229995813,33cyclictest1907666-21sh10:38:171
1792229995813,25cyclictest1951052-21sh11:39:191
179222999580,28cyclictest1841826-21unin-run09:10:001
179222999572,35cyclictest1927071-21apt-get11:05:111
179222999571,40cyclictest1879563-21apt-get10:00:121
179222999571,37cyclictest1965314-21apt-get12:00:131
179222999571,32cyclictest1890516-21apt-get10:15:121
1792229995712,32cyclictest1947859-21sh11:34:581
1792229995710,27cyclictest1964287-21sh11:58:061
179222999562,36cyclictest1845793-21apt-get09:15:121
179222999562,35cyclictest1894133-21apt-get10:20:141
179222999562,32cyclictest1825487-21sed08:30:021
179222999562,32cyclictest1825487-21sed08:30:011
1792229995614,30cyclictest1858451-21sh09:31:091
179222999561,31cyclictest1930844-21apt-get11:10:131
1792229995610,27cyclictest1984053-21sh12:26:031
179222999560,38cyclictest1908759-21apt-get10:40:121
179222999551,38cyclictest1901498-21apt-get10:30:171
179222999551,38cyclictest1818968-21apt-get08:15:111
179222999551,37cyclictest1923244-21apt-get11:00:141
179222999551,30cyclictest1886608-21chrt10:09:561
179222999550,38cyclictest1813087-21apt-get08:00:141
179222999550,37cyclictest1876020-21apt-get09:55:121
179222999550,30cyclictest1955982-21/usr/sbin/munin11:45:221
179222999550,29cyclictest1941181-21apt-get11:25:111
179222999550,29cyclictest1941181-21apt-get11:25:101
179222999541,37cyclictest1919538-21apt-get10:55:121
179222999540,38cyclictest1951592-21apt-get11:40:111
179222999540,38cyclictest1871940-21apt-get09:50:181
179222999540,37cyclictest1934369-21apt-get11:15:111
179222999540,37cyclictest1860488-21apt-get09:35:121
179222999540,35cyclictest1987329-21zlatency_STM32F12:30:321
179222999531,35cyclictest1968781-21apt-get12:05:131
179222999531,30cyclictest1989289-21apt-get12:35:161
179222999530,40cyclictest1852029-21sh09:23:041
179222999530,37cyclictest1958461-21apt-get11:50:181
179222999530,36cyclictest1978983-21apt-get12:20:121
179222999530,29cyclictest1901319-21cat10:30:001
179222999530,27cyclictest1976682-21sensors12:15:231
179222999527,28cyclictest1812909-21systemd-run08:00:001
179222999520,40cyclictest1919164-21ssh10:54:461
136599520,4rtkit-daemon1364-21rtkit-daemon09:43:341
136599520,3rtkit-daemon0-21swapper/112:03:100
179222999511,37cyclictest1817004-21apt-get08:10:101
179222999510,38cyclictest1804574-21seq07:36:201
179222999510,35cyclictest1912459-21apt-get10:45:131
179222999510,34cyclictest1835521-21taskset08:51:151
179222999510,33cyclictest1845050-21ssh09:13:561
179222999510,32cyclictest1871353-21chrt09:49:261
179222999510,31cyclictest1793715-21chrt07:10:551
179222999510,29cyclictest1829643-21unattended-upgr08:36:391
1792225995113,21cyclictest1825081-21apt-get08:30:060
1792225995113,21cyclictest1825081-21apt-get08:30:050
179222999501,30cyclictest1822922-21chrt08:23:021
179222999501,30cyclictest1797361-21cat07:20:171
179222999501,30cyclictest1797361-21cat07:20:171
179222999500,37cyclictest1799155-21perl07:25:171
179222999500,30cyclictest18027542sleep107:32:481
179222999500,29cyclictest18326662sleep108:45:181
1792225995018,20cyclictest1858213-21ssh09:30:390
1792225995018,19cyclictest1936772-21ssh11:18:030
1792225995016,21cyclictest1925328-21ssh11:02:150
1792225995012,21cyclictest1930199-21apt-get11:10:060
179222999491,30cyclictest1886863-21chrt10:10:051
179222999490,36cyclictest1938300-21ssh11:20:161
179222999490,28cyclictest1830374-21ls08:40:141
1792225994918,13cyclictest1940435-21ssh11:23:410
1792225994916,21cyclictest1977658-21ssh12:17:160
1792225994916,21cyclictest1903497-21ssh10:31:550
1792225994916,21cyclictest1881006-21ssh10:00:350
1792225994916,21cyclictest1870437-21ssh09:47:230
1792225994916,20cyclictest1957456-21ssh11:48:190
1792225994916,20cyclictest1866662-21ssh09:43:050
1792225994915,19cyclictest1841791-21diskmemload12:11:230
1792225994914,22cyclictest1991534-21ssh12:37:440
1792225994912,21cyclictest1978983-21apt-get12:20:130
1792225994912,20cyclictest1985944-21apt-get12:30:170
179222999482,37cyclictest1836087-21apt-get08:55:111
179222999481,30cyclictest1795922-21sed07:15:231
179222999481,28cyclictest1823471-21cat08:25:141
179222999481,28cyclictest1809122-21/usr/sbin/munin07:50:201
179222999480,35cyclictest1805271-21grep07:40:141
179222999480,30cyclictest1839340-21awk09:00:251
1792225994816,20cyclictest1946778-21ssh11:32:240
1792225994816,20cyclictest1943497-21ssh11:27:590
1792225994816,20cyclictest1943497-21ssh11:27:580
1792225994816,20cyclictest1918189-21ssh10:52:230
1792225994816,20cyclictest1911682-21ssh10:43:520
1792225994816,20cyclictest1854910-21ssh09:26:350
1792225994816,19cyclictest1848710-21ssh09:18:580
1792225994816,13cyclictest1963927-21ssh11:57:050
1792225994815,22cyclictest1899636-21ssh10:26:270
1792225994815,21cyclictest1984055-21ssh12:26:030
1792225994815,20cyclictest1915677-21ssh10:49:490
1792225994815,13cyclictest1841791-21diskmemload12:08:190
1792225994814,19cyclictest1849488-21apt-get09:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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