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2026-04-22 - 16:20
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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 Wed Apr 22, 2026 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1828205991211,0cyclictest0-21swapper/310:25:123
1828205991211,0cyclictest0-21swapper/308:30:203
1828205991210,1cyclictest0-21swapper/308:35:113
182820599120,11cyclictest0-21swapper/311:15:183
182820599120,11cyclictest0-21swapper/310:50:113
182820599120,11cyclictest0-21swapper/309:32:493
182820599120,11cyclictest0-21swapper/308:20:123
182820599120,11cyclictest0-21swapper/308:00:123
182820599120,10cyclictest0-21swapper/310:20:113
182820599120,0cyclictest0-21swapper/309:20:113
182820599118,2cyclictest1948822-21chrt12:03:023
1828205991111,0cyclictest0-21swapper/312:30:123
1828205991111,0cyclictest0-21swapper/307:50:093
1828205991110,1cyclictest0-21swapper/310:40:133
1828205991110,0cyclictest0-21swapper/311:15:003
1828205991110,0cyclictest0-21swapper/307:50:013
182820599110,8cyclictest0-21swapper/310:35:163
182820599110,11cyclictest0-21swapper/308:15:013
182820599110,10cyclictest0-21swapper/307:30:183
182820599110,0cyclictest0-21swapper/308:50:003
182820599109,0cyclictest0-21swapper/312:10:113
182820599109,0cyclictest0-21swapper/307:35:113
1828205991010,0cyclictest0-21swapper/312:15:123
1828205991010,0cyclictest0-21swapper/312:00:003
1828205991010,0cyclictest0-21swapper/311:45:203
1828205991010,0cyclictest0-21swapper/311:44:553
1828205991010,0cyclictest0-21swapper/310:15:133
182820599100,9cyclictest0-21swapper/312:05:113
182820599100,9cyclictest0-21swapper/310:05:143
182820599100,0cyclictest0-21swapper/312:20:103
18282059999,0cyclictest0-21swapper/312:25:133
18282059999,0cyclictest0-21swapper/311:55:013
18282059999,0cyclictest0-21swapper/309:59:523
18282059999,0cyclictest0-21swapper/309:10:173
18282059999,0cyclictest0-21swapper/308:40:163
18282059999,0cyclictest0-21swapper/308:00:003
18282059999,0cyclictest0-21swapper/307:10:163
18282059998,0cyclictest0-21swapper/309:50:113
18282059998,0cyclictest0-21swapper/309:15:123
18282059990,8cyclictest0-21swapper/309:00:013
18282059990,0cyclictest0-21swapper/309:00:173
18282059988,0cyclictest0-21swapper/312:35:123
18282059988,0cyclictest0-21swapper/311:25:113
18282059988,0cyclictest0-21swapper/310:55:183
18282059988,0cyclictest0-21swapper/309:41:003
18282059988,0cyclictest0-21swapper/309:35:123
18282059988,0cyclictest0-21swapper/308:50:123
18282059988,0cyclictest0-21swapper/307:15:103
18282059980,0cyclictest0-21swapper/307:20:203
18282059977,0cyclictest0-21swapper/308:25:133
18282059976,0cyclictest0-21swapper/311:30:313
18282059970,7cyclictest0-21swapper/310:30:143
18282059970,6cyclictest0-21swapper/310:45:173
18282059970,6cyclictest0-21swapper/307:40:193
1826456271,4sleep30-21swapper/307:05:123
18282059966,0cyclictest0-21swapper/311:35:133
18282059966,0cyclictest0-21swapper/308:15:013
18282059960,5cyclictest0-21swapper/311:05:183
18282059960,5cyclictest0-21swapper/307:25:183
1947640250,1sleep01947706-21if_eno112:00:150
18282059955,0cyclictest0-21swapper/311:24:053
18282059955,0cyclictest0-21swapper/311:00:113
18282059955,0cyclictest0-21swapper/310:10:173
18282059955,0cyclictest0-21swapper/308:05:173
18282059940,4cyclictest0-21swapper/310:04:563
18282059940,3cyclictest0-21swapper/309:45:153
18282059940,3cyclictest0-21swapper/309:25:123
18282059940,2cyclictest0-21swapper/309:05:123
1827332241,1sleep10-21swapper/107:05:181
1946680230,1sleep21946695-21apt-get12:00:022
1911613230,1sleep01911880-21df10:35:130
1879844230,2sleep01880083-21date09:20:000
1827192231,1sleep00-21swapper/007:05:160
1826397231,1sleep20-21swapper/207:05:112
1946305220,0sleep00-21swapper/011:56:420
1945285220,1sleep11945369-21irqstats11:55:151
1944852220,1sleep20-21swapper/211:55:122
1944598220,1sleep21944632-21unin-run11:55:012
1929921220,1sleep00-21swapper/011:19:280
1924640220,1sleep01924762-21ntp_states11:05:150
1920428220,1sleep21920590-21ntp_states10:55:172
1904498220,0sleep00-21swapper/010:16:090
1901747220,1sleep01901817-21open_inodes10:10:160
1897296220,0sleep00-21swapper/010:00:160
1894242220,1sleep21894646-21dpkg09:55:022
1886313220,1sleep01886582-21diskstats09:35:140
1881560220,0sleep00-21swapper/009:21:460
1876969220,1sleep21877178-21timerwakeupswit09:10:192
1875777220,0sleep00-21swapper/009:09:560
1847374220,1sleep01847524-21ntp_states07:55:150
1844339220,1sleep11844813-21apt-key07:50:011
1836244220,1sleep21836294-21munin-run07:30:002
1834066220,0sleep10-21swapper/107:21:351
1961843210,0sleep20-21swapper/212:35:112
1961803210,0sleep10-21swapper/112:35:101
1961554210,0sleep00-21swapper/012:35:010
1961032210,0sleep00-21swapper/012:30:210
1960171210,0sleep20-21swapper/212:30:152
1959982210,0sleep10-21swapper/112:30:141
1959135210,0sleep20-21swapper/212:27:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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