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2026-04-21 - 19:19
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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 rack1slot3.osadl.org (updated Tue Apr 21, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1882218991311,1cyclictest0-21swapper/307:20:113
1882218991310,1cyclictest0-21swapper/310:10:123
188221899130,1cyclictest0-21swapper/310:00:123
188221899130,1cyclictest0-21swapper/309:35:123
188221899130,1cyclictest0-21swapper/309:10:123
189637921210,1sleep11896411-21systemctl07:45:021
1882218991211,0cyclictest0-21swapper/312:25:143
1882218991211,0cyclictest0-21swapper/310:25:213
1882218991211,0cyclictest0-21swapper/309:05:123
1882218991210,1cyclictest0-21swapper/308:25:143
188221899120,1cyclictest0-21swapper/311:30:113
188221899120,11cyclictest0-21swapper/311:45:133
188221899120,11cyclictest0-21swapper/311:29:563
188221899120,11cyclictest0-21swapper/311:00:113
188221899120,11cyclictest0-21swapper/309:45:183
188221899120,11cyclictest0-21swapper/308:45:173
188221899120,10cyclictest0-21swapper/308:50:113
1882218991111,0cyclictest0-21swapper/312:30:133
1882218991111,0cyclictest0-21swapper/309:20:113
1882218991110,0cyclictest0-21swapper/307:45:123
188221899110,10cyclictest0-21swapper/310:55:193
188221899110,10cyclictest0-21swapper/307:55:113
188221899110,10cyclictest0-21swapper/307:30:173
188221899110,10cyclictest0-21swapper/307:25:123
188221899110,0cyclictest0-21swapper/312:15:173
188221899110,0cyclictest0-21swapper/309:25:103
188221899110,0cyclictest0-21swapper/308:05:013
1882218991010,0cyclictest0-21swapper/311:20:013
1882218991010,0cyclictest0-21swapper/310:45:123
1882218991010,0cyclictest0-21swapper/309:00:183
188221899100,9cyclictest0-21swapper/310:35:143
188221899100,8cyclictest0-21swapper/310:50:013
188221899100,0cyclictest0-21swapper/311:44:563
188221899100,0cyclictest0-21swapper/309:55:143
188221899100,0cyclictest0-21swapper/307:15:173
18822189999,0cyclictest0-21swapper/311:55:243
18822189999,0cyclictest0-21swapper/311:50:133
18822189999,0cyclictest0-21swapper/310:17:013
18822189999,0cyclictest0-21swapper/308:35:193
18822189999,0cyclictest0-21swapper/308:30:133
18822189998,0cyclictest0-21swapper/310:30:123
18822189990,8cyclictest0-21swapper/311:35:013
18822189990,0cyclictest0-21swapper/312:00:113
18822189988,0cyclictest0-21swapper/312:35:143
18822189988,0cyclictest0-21swapper/311:10:163
18822189988,0cyclictest0-21swapper/311:05:193
18822189988,0cyclictest0-21swapper/307:40:193
18822189980,7cyclictest0-21swapper/307:35:173
18822189980,0cyclictest0-21swapper/310:20:123
18822189977,0cyclictest0-21swapper/309:20:003
18822189977,0cyclictest0-21swapper/308:05:143
18822189977,0cyclictest0-21swapper/308:05:133
18822189976,1cyclictest0-21swapper/310:10:003
18822189976,0cyclictest0-21swapper/312:23:153
18822189976,0cyclictest0-21swapper/307:10:133
1880414271,4sleep30-21swapper/307:05:123
18822189966,0cyclictest0-21swapper/308:15:013
18822189965,0cyclictest0-21swapper/311:15:123
18822189964,1cyclictest0-21swapper/312:10:133
18822189962,3cyclictest1907888-21sleep08:19:563
18822189955,0cyclictest0-21swapper/312:05:143
18822189955,0cyclictest0-21swapper/308:40:123
18822189955,0cyclictest0-21swapper/307:50:143
1881820251,1sleep20-21swapper/207:06:432
1890160240,0sleep10-21swapper/107:28:441
18822189940,4cyclictest0-21swapper/308:55:063
18822189940,3cyclictest1943000-21chrt09:41:173
18822189940,3cyclictest1938849-21chrt09:30:523
18822189940,3cyclictest0-21swapper/310:42:113
18822189940,3cyclictest0-21swapper/309:51:353
18822189940,2cyclictest0-21swapper/308:20:103
1881871243,0sleep00-21swapper/007:07:210
1881184241,1sleep10-21swapper/107:05:181
1954108230,2sleep01954179-21latency_hist10:10:000
1888327230,3sleep10-21swapper/107:24:431
2013560220,1sleep00-21swapper/012:27:290
2009942220,1sleep02009968-21apt-get12:20:130
2000844220,0sleep00-21swapper/011:55:470
1984106220,1sleep00-21swapper/011:20:010
1979680220,1sleep11979694-21apt-get11:10:011
1979174220,0sleep00-21swapper/011:05:320
1964716222,0sleep22049791-21systemd-journal10:34:162
1961604220,1sleep21961840-21awk10:25:192
1952272220,2sleep10-21swapper/110:05:091
1951685220,0sleep00-21swapper/010:02:000
1951503220,0sleep10-21swapper/110:00:211
1949533220,0sleep00-21swapper/009:58:560
1941591220,1sleep11941688-21hostname09:40:121
1937581220,1sleep21937785-21cpuspeed_turbos09:30:122
1933675220,1sleep01933949-21df_inode09:20:130
1925633220,1sleep01925659-21apt-get09:00:120
1924202220,0sleep00-21swapper/008:55:170
1920509220,1sleep21920639-21cat08:45:172
1917441220,0sleep21917497-21munin-run08:40:012
1908211220,1sleep01908483-21cstates08:15:130
1904041220,1sleep01904210-21sed08:05:010
1889309220,0sleep20-21swapper/207:25:172
2017596210,0sleep00-21swapper/012:36:220
2016286210,0sleep20-21swapper/212:35:162
2015784210,0sleep00-21swapper/012:33:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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