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2026-06-17 - 14:35
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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 Jun 17, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1871727991311,1cyclictest0-21swapper/309:20:123
1871727991211,0cyclictest0-21swapper/309:00:123
187172799120,11cyclictest0-21swapper/312:15:183
187172799120,11cyclictest0-21swapper/312:00:223
187172799120,11cyclictest0-21swapper/309:10:113
187172799120,11cyclictest0-21swapper/308:55:163
1871727991110,0cyclictest0-21swapper/310:30:113
1871727991110,0cyclictest0-21swapper/307:40:113
1871727991110,0cyclictest0-21swapper/307:15:003
187172799110,10cyclictest0-21swapper/310:37:173
187172799110,10cyclictest0-21swapper/310:30:003
187172799110,10cyclictest0-21swapper/309:55:113
187172799110,10cyclictest0-21swapper/307:40:003
187172799110,0cyclictest0-21swapper/311:20:103
187172799110,0cyclictest0-21swapper/310:01:163
187172799110,0cyclictest0-21swapper/309:35:133
187172799110,0cyclictest0-21swapper/309:05:113
187172799110,0cyclictest0-21swapper/308:15:113
187172799110,0cyclictest0-21swapper/307:20:113
187172799109,0cyclictest0-21swapper/311:35:123
187172799109,0cyclictest0-21swapper/311:10:123
187172799109,0cyclictest0-21swapper/308:40:123
187172799109,0cyclictest0-21swapper/307:45:163
187172799108,1cyclictest0-21swapper/311:25:103
187172799108,1cyclictest0-21swapper/310:10:103
187172799105,0cyclictest0-21swapper/307:10:003
1871727991010,0cyclictest0-21swapper/312:40:023
1871727991010,0cyclictest0-21swapper/311:45:183
1871727991010,0cyclictest0-21swapper/310:15:133
1871727991010,0cyclictest0-21swapper/309:30:153
187172799100,9cyclictest0-21swapper/312:25:023
187172799100,0cyclictest0-21swapper/311:05:173
187172799100,0cyclictest0-21swapper/310:20:113
187172799100,0cyclictest0-21swapper/307:50:103
18717279999,0cyclictest0-21swapper/307:55:123
18717279998,0cyclictest0-21swapper/309:45:113
18717279998,0cyclictest0-21swapper/308:50:123
18717279998,0cyclictest0-21swapper/308:10:193
18717279990,7cyclictest0-21swapper/307:15:123
18717279990,0cyclictest0-21swapper/309:15:153
18717279988,0cyclictest0-21swapper/308:30:123
18717279988,0cyclictest0-21swapper/307:30:183
18717279980,0cyclictest0-21swapper/310:40:103
18717279980,0cyclictest0-21swapper/308:35:123
18717279977,0cyclictest0-21swapper/310:05:203
18717279977,0cyclictest0-21swapper/308:05:193
18717279976,0cyclictest0-21swapper/310:50:123
18717279975,1cyclictest0-21swapper/312:25:113
18717279970,6cyclictest0-21swapper/312:10:103
18717279966,0cyclictest0-21swapper/312:30:153
18717279966,0cyclictest0-21swapper/310:55:163
18717279966,0cyclictest0-21swapper/308:05:003
18717279966,0cyclictest0-21swapper/307:25:143
18717279960,5cyclictest0-21swapper/309:25:123
18717279955,0cyclictest0-21swapper/312:05:113
18717279955,0cyclictest0-21swapper/311:30:123
18717279951,2cyclictest0-21swapper/309:40:093
18717279951,2cyclictest0-21swapper/308:25:133
18717279950,4cyclictest0-21swapper/310:45:123
18717279950,2cyclictest0-21swapper/311:40:113
18717279941,2cyclictest0-21swapper/311:00:143
18717279941,1cyclictest0-21swapper/311:55:133
18717279940,3cyclictest19092282sleep308:45:163
18717279940,2cyclictest0-21swapper/311:15:123
1870603241,1sleep20-21swapper/207:05:252
1869836241,2sleep10-21swapper/107:05:171
2004527230,2sleep12004803-21latency_hist12:35:011
1997996230,1sleep21998022-21apt-get12:20:012
1945757230,1sleep01945783-21apt-get10:15:110
1939230230,2sleep21939338-21sort10:00:012
1931155230,2sleep00-21swapper/009:40:090
18717279933,0cyclictest0-21swapper/308:20:583
18717279931,1cyclictest0-21swapper/311:50:123
18717279930,2cyclictest1935310-21chrt09:50:043
1869865231,0sleep00-21swapper/007:05:200
2004191220,0sleep00-21swapper/012:32:040
1996608220,0sleep00-21swapper/012:15:150
1995898220,1sleep10-21swapper/112:14:571
1995687220,0sleep00-21swapper/012:13:030
1992466220,1sleep11992618-21memory12:05:151
1977911220,1sleep01918380-21diskmemload11:30:160
1975743220,0sleep20-21swapper/211:25:142
1975362220,1sleep00-21swapper/011:25:120
1975053220,1sleep10-21swapper/111:25:011
1972905220,0sleep10-21swapper/111:19:361
1972195220,1sleep00-21swapper/011:15:190
1968522220,1sleep21968535-21apt-get11:10:012
1965862220,1sleep00-21swapper/011:00:220
1964034220,1sleep11964038-21ssh10:57:191
1962506220,0sleep00-21swapper/010:55:100
1961946220,1sleep21961948-21ssh10:52:162
1953911220,1sleep01954070-21cat10:35:000
1950711220,1sleep11949998-21/usr/sbin/munin10:25:181
1944993220,0sleep00-21swapper/010:10:270
1943839220,1sleep11944108-21diskstats10:10:131
1937835220,1sleep01937921-21irqstats09:55:140
1934043220,1sleep11934215-21python309:45:191
1920870220,0sleep00-21swapper/009:15:030
1918877220,0sleep01918903-21apt-get09:10:110
1914792220,0sleep20-21swapper/209:00:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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